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CEREBROVASCULAR

1000. 3D Printing For Simulation Of Complex Skull Base Vasculature

Lohit Velagapudi; Jacob Mazza, BS; Jeffery Head, BA; Nohra El-Chalouhi, MD; Richard Schmidt, MD; Robert Pugliese, PharmD; Pascal Jabbour, MD (Philadelphia, PA)

CEREBROVASCULAR

1002. 4D Micro Neurosurgical Aneurysm Clipping Simulator for Training Medical Residents

Fredrick Joseph; Fredrick Joseph; Luca Sahli, MSc; Stefan Weber, PhD; Andreas Raabe; David Bervini (Bern, Switzerland)

CEREBROVASCULAR

1003. A COMPARISON OF ANTERIOR CIRCULATION ANEURYSM CLIPPING WITH AND WITHOUT TEMPORARY OCCLUSION

Noor Ul-Huda Maria, MBBS; Dr.Qurrat Siddiq (Lahore Punjab, Pakistan)

CEREBROVASCULAR

1004. A Novel Anti-Neuroinflammatory Treatment for Auditory Sensorimotor Gaiting in Two Rodent Models of Schizophrenia

Wyatt S. Whicker; Russell Brown, PhD; Heath Shelton, MS; Wesley Gill, MS; Katherine Burgess, BS (Johnson City, TN)

CEREBROVASCULAR

1005. A Propensity Score-matched Comparison of Readmission Rates Associated with Microsurgical Clipping and Endovascular Treatment of Ruptured Intracranial Aneurysms

Haydn Hoffman, MD; Muhammad Jalal, BS; Lawrence Chin, MD (Syracuse, NY)

CEREBROVASCULAR

1006. A Single Dose of Natalizumab (aVLA4) and Odulimomab (aLFA1) Prevents Fatal Cerebral Herniation In a Rodent Model of Hemorrhagic Stroke

Panagiotis Mastorakos, MD PhD; Dorian McGavern, PhD (Bethesda, MD)

CEREBROVASCULAR

1009. Access-Site Complications In Mechanical Thrombectomy For Acute Ischemic Stroke: A Review Of Prospective Trials

Nikolas Echeverry; Koushik Mantripragada, BS; Stephen Shapiro, BS; Gerard MacKinnon, BS; Samuel Mansour, BS; Brian Snelling, MD (Delray Beach, FL)

CEREBROVASCULAR

1010. Accessory Middle Cerebral Artery - Case Report

Victoria Esther Silva Baez; Jose Jose Figueroa-Sanchez; Roberto Alcazar-Felix, MD (Monterrey, Mexico)

CEREBROVASCULAR

1011. Acute Atherosclerotic Stroke Versus Embolic Stroke: Intraoperative Differentiation And Management

Joshua H Weinberg; Ahmad Sweid; Michael Reid Gooch; Stavropoula Tjoumakaris; Pascal Jabbour; Robert Rosenwasser; Hekmat Zarzour (Philadelphia, PA)

CEREBROVASCULAR

1012. Acute Hemispheric Syndrome Secondary to Contralateral Flow Related A1 Large Vessel Occlusion Treated with Mechanical Thrombectomy

Tyler Scullen, MD; Jessica Carr, BS; Mansour Mathkour, MD; Peter Amenta, MD (New Orleans, LA)

CEREBROVASCULAR

1013. Adenosine-induced transient asystole to control intraoperative rupture of intracranial aneurysms: Institutional experience and review of the literature

Eric S. Nussbaum, MD, FAANS, FACS; elizabeth burke; jodi lowary; leslie nussbaum (Minneapolis, MN)

CEREBROVASCULAR

1014. An Analysis of Medicare Reimbursement Rates in Cerebrovascular Neurosurgery: 2000-2019

Kent Richter; Jack Haglin, BS; Reed Richter, BS; Bernard Bendok, MD, MS (Mesa, AZ)

CEREBROVASCULAR

1015. An Interesting Surgical Technique And Literature Review: Multiple Telescoping Flow Diverting Devices For Embolization Of A Giant Internal Carotid Artery Aneurysm

Breck Aaron Jones, MD; Alex Michael, MD; Adam Lipson, MD (Springfield, IL)

CEREBROVASCULAR

1020. Assessment Of Surgical Swedish ICH Score In Japan: Single Institution Pilot Study

Sukwoo Hong, MD; Takayuki Hara, MD, PhD (Tokyo, Japan)

CEREBROVASCULAR

1022. Association Of Opium Addiction With Rupture Of Intracranial Aneurysms: A Case-Control Study.

Mojtaba Dayyani; Mojtaba Dayyani, MD; Samira Zabihyan, MD; Maryam Salehi; Humain Baharvahdat, MD; Sina Ahmadi, MD; Hamid Etemadrezaie, MD (Houston, TX)

CEREBROVASCULAR

1023. Association of Secondary Cerebrovascular Ischemia and Hemorrhagic Risk with Patterns of Antiplatelet Medication after Carotid Stenting

Michael Chuwei Jin; Eric Sussman, MD; Austin Feng, BS; Jeremy Heit, MD, PhD; Nicholas Telischak, MD (Menlo Park, CA)

CEREBROVASCULAR

1027. Barrow Anastomosis Techniques Study Part I: Continuous vs. Interrupted Techniques with End-to-Side Anastomosis

Dara Sam Farhadi; Evgenii Belykh, MD, PhD; Xiaochun Zhao, MD; Brandon Ngo, BS; Ali Meybodi, MD; Leandro Moreira, MD; Mark Preul, MD; Michael Lawton, MD (Phoenix, AZ)

CEREBROVASCULAR

1030. CCR2+ Monocytes and Pro-Angiogenic Microglia Orchestrate Repair in a Rodent Model of Hemorrhagic Stroke

Panagiotis Mastorakos, MD PhD; Dorian McGavern, PhD (Bethesda, MD)

CEREBROVASCULAR

1031. CSF Protein and Initial Blood Burden are Associated with Progression to Permanent Shunt in Patients with Aneurysmal Subarachnoid Hemorrhage: A Case Control Study

James Tanner McMahon; James Malcolm, MD, PhD; Alex Greven, BS; James Douglas III, BS; Chadd Funk, MD, PhD; Brian Howard, MD (Atlanta, GA)

CEREBROVASCULAR

1034. Carotid Artery Stenting After Reconstruction with PTFE Graft

Julia Sofia Arango Vasquez; Mario Benvenutti Regato, MD; Jose Antonio Figueroa Sanchez, MD, MBA (San Pedro Garza García, Mexico)

CEREBROVASCULAR

1035. Carotid Artery Stenting Under General Anesthesia with SEP is reasonable procedure

Toshiya Osanai (Sapporo, Japan)

CEREBROVASCULAR

1036. Carotid Endarterectomy: Current Guidelines And Cadaveric Study

Muhammad Burhan Ud Din Janjua, MD; Vibhav Bansal; Steven Hwang, MD (Rockford, IL)

CEREBROVASCULAR

1038. Cavernous Angioma Of The Right Lateral Ventricle: Case Report

Jose Alfonso Alvarez Castro; Martin Heisi Gomez-Martinez (Saltillo, Mexico)

CEREBROVASCULAR

1039. Cavernous Carotid Aneurysms Associated With A Lower Risk To Multiple Intracranial Aneurysms

Alexandra Santos; Jefferson Rosi Junior, MD; Saul da Silva, MD, PhD; Ricardo Iglesio, MD; José Guilherme Caldas, MD; Manoel Teixeira, MD, PhD; Eberval Figueiredo, MD, PhD (Sao Paulo, Brazil)

CEREBROVASCULAR

1044. Cerebral Revascularization for the Management of Complex Intracranial Aneurysms: A Single Center Experience

Eric S. Nussbaum, MD, FAANS, FACS; kevin kallmes, BA; Jeff Lassig, MD; james goddard; michael madison; jodi lowary; leslie nussbaum (Minneapolis, MN)

CEREBROVASCULAR

1046. Cerebrovascular Complications In The Acute Phase Of Civilian Penetrating Brain Injury

Valentina Vasenina, MD; Andrea Loggini, MD; Faten El Ammar, MD; Issam Awad, MD; Paramita Das, MD; Peleg Horowitz, MD; David Hampton, MD; Tanya Zakrison, MD; Christopher Kramer, MD; Christos Lazaridis, MD; Daniel Ginat, MD; Ali Mansour, MD (Chicago, IL)

CEREBROVASCULAR

1047. Changes in Mean Arterial Pressure and End Tidal Carbon Dioxide Content Affect Venous Sinus Pressures and Gradients in Patients With Idiopathic Intracranial Hypertension: A Randomized Study

Christine Tschoe; Rebecca Garner; Carol Kittel; Justin Traunero, MD; Stacey Wolfe, MD; Kyle Fargen, MD (Winston-Salem, NC)

CEREBROVASCULAR

1053. Clipping of an Unruptured Proximal Anterior Cerebral Artery Aneurysm During the Resection of Brain Tumor.

Zaid Aljuboori, MD; Dale Ding, MD; Brian Williams, MD (Louisville, KY)

CEREBROVASCULAR

1055. Comparison Of Two Drainage Systems On Chronic Subdural Hematoma Recurrence

Radwan Takroni, MD; Nirmeen Zagzoog, MD,MSc; Nimita Patel, BSc; Amanda Martyniuk, BSc; Sheila Singh; Forough Farrokhyar, PhD; Almunder Algird (Hamilton, Canada)

CEREBROVASCULAR

1061. Complete Occlusion of a Recurrent Aneurysm by a Spontaneous Thromboembolic Event with no Ischemic Complications

Julia Sofia Arango Vasquez; Ana Ferrigno; Jose Figueroa Sanchez, MD, MBA (San Pedro Garza García, Mexico)

CEREBROVASCULAR

1064. Contralateral Interhemispheric Surgical Approaches for Ruptured Intraventricular AVM-associated Aneurysms

Daniel Raper, MD; Ethan Winkler; W. Caleb Rutledge; Steven Hetts; Adib Abla (San Francisco, CA)

CEREBROVASCULAR

1070. Definitive Treatment with Microsurgical Clipping after Recurrence and Re-rupture of coiled ACA aneurysms

Daniel Raper, MD; W. Caleb Rutledge; Ethan Winkler; Adib Abla (San Francisco, CA)

CEREBROVASCULAR

1076. Development of a Non-invasive Bioimpedance System to Detect Ischemic and Hemorrhagic Stroke

Daniel Richard Calnan, MD, PhD; Alicia Everitt; Brandon Root, MD; David Bauer, MD; Ryan Halter, PhD (Lebanon, NH)

CEREBROVASCULAR

1079. Durability of Treatments for Hydrocephalus: A Population-Based Study across the Spectrum of Age

Joseph H. Piatt, Jr., MD, FAANS; Allison Lehanka (Wilmington, DE)

CEREBROVASCULAR

1080. Duration Of Dual Antiplatelet Therapy And Stent-Adjacent Stenosis After Intracranial Venous Stenting

Victor S Lopez Rivera; Mehmet Inam, MS; Faheem Sheriff, MD; Elvira Lekka, MD; Sunil Sheth, MD; Arthur Day, MD; Peng Chen, MD (HOUSTON, TX)

CEREBROVASCULAR

1081. Dysregulation of the Ephrin B2/EphB4 Ratio in Human Cerebral Cavernous Malformations is Associated with Endothelial Cell Dysfunction in vitro

Katie Pricola Fehnel, MD; Jessica Driscoll; Julie Sesen; Edward Smith; Katie Fehnel (Boston, MA)

CEREBROVASCULAR

1082. ENDOVASCULAR TREATMENT OF VASOSPASM: SERIES OF 57 PATIENTS WITH ANEURYSMAL SUBARACHNOID HEMORRHAGE

Bruno Henrique Dallo Gallo; Luana Maranha Gatto (Curitiba, Brazil)

CEREBROVASCULAR

1083. EVD Associated Infections Among Patients with Aneurysmal Subarachnoid Hemorrhage: Incidence, Risk Factors, and Effect on Patient Outcome

Matthew E. Eagles, MD; Sandeep Muram, MD; David Ben-Israel; R. Loch Macdonald, MD, PhD (Calgary, Canada)

CEREBROVASCULAR

1089. Effect of Particulate Matter Exposure and Chronic Cerebral Hypoperfusion on Vascular Inflammation

Kristina Shkirkova; Kristina Shkirkova, BSc; Michelle Connor, BSc; Krista Lamorie-Foote, BSc; Hans Baertsch, BSc; Matthew Lahey, BSc; Qinghai Liu, MD; Todd Morgan, PhD; Constantinos Sioutas; Caleb Finch, PhD; William Mack, MD (Los Angeles, CA)

CEREBROVASCULAR

1091. Efficacy and Safety Profile of Dandy's Vein sacrifice in Skull Base Surgeries

Vinayak Narayan, M.Ch; Anil Nanda (Bangalore, India)

CEREBROVASCULAR

1094. Endoscopic Third Ventriculostomy for Hydrocephalus Secondary to Extra-Ventricular Obstruction in Thalamic Hemorrhage

Antonio Gabriel Dono; Hussein Zeineddine, MD; Ryan Kitagawa, MD; Sean Savitz, MD; Huimahn Choi, MD; Tiffany Chang, MD; Yoshua Esquenazi, MD; Leomar Ballester, MD, PhD (Houston, TX)

CEREBROVASCULAR

1100. Endovascular Treatment of Acute Stroke from Tandem Atherosclerotic Cervical Internal Carotid Artery Occlusion and Middle Cerebral Artery Embolic Occlusion with Carotid Angioplasty and Stent Followed by Solitaire Stent Retriever and Aspiration Catheter

Stanley H. Kim, MD, FAANS; Yesenia De La Torre, BS; Kelsi Hernandez, BS; Nathan Dhablania (Austin, TX)

CEREBROVASCULAR

1101. Ependymal and Choroid Plexus Cell Barrier Dysfunction in a Mouse Model of Idiopathic Normal Pressure Hydrocephalus

Gabrielle Luiselli; Dejun Yang; Huijun Dai; Charles Ogagan; Shaokuan Zheng; Rona Carroll; Hong Wei Yang; Mark Johnson (Worcester, MA)

CEREBROVASCULAR

1102. Evaluation Of Immediate Heparin Or Eptifibatide Infusion Following Treatment Of Intracranial Aneurysms With Pipeline Embolization Devices.

Luke George Foley Smith, MD; Mark Damante, BS; Mark Constable; Juan Peng; David Dornbos, MD; Victoria Schunemann, MD; Ciarán powers, MD, PhD; patrick youssef, MD; shahid Nimjee, MD, PhD (Columbus, OH)

CEREBROVASCULAR

1110. Features of dissecting aneurysm with only headache

Yutaka Kai, PhD (Aso, Japan)

CEREBROVASCULAR

1114. Frequency Of Mechanical Thrombectomy-Related Subarachnoid Hemorrhage In The Era Of Expanded Indications

Patrick Brown; Stacey Wolfe, MD; Kyle Fargen, MD (Winston-Salem, NC)

CEREBROVASCULAR

1115. Gait Variability Correlates With p-SP1453 Expression In The Motor Cortex In Experimental Subarachnoid Hemorrhage

George KC Wong, FRCS; Vera Zheng; Gang Lu; Mark Xiong; Chi Kwan Leung; Siu Wen Su; Tu Li; Wai Sang Poon; Wai Yee Chan (Hong Kong, China)

CEREBROVASCULAR

1119. Headache Scores: a Viable Measure of Subarachnoid Hemorrhage Outcome

Brandon P. Lucke-Wold, MD; Vyas Viswanathan; Chad Jones; Gabrielle Aiello; Youlei Li; Katharina Busl; William Fox (Gainesville, FL)

CEREBROVASCULAR

1121. High Riding Jugular Bulb: A Rare Entity of Vascular Disease

Mario Alberto Molina De Haro; Chabelly Gómez-González, MD; José Elizondo-Villarreal; José Figueroa-Sánchez, MD, MBA (Monterrey, Mexico)

CEREBROVASCULAR

1125. INTERNAL JUGULAR VEIN PHLEBECTASIA IN ADULT PATIENT A VERY RARE FINDING

Andrea Garza Mireles; Javier Elizondo Ramirez; Julia Arango Vasquez; Jose Figueroa Sanchez (Monterrey, Mexico)

CEREBROVASCULAR

1126. Impact of Endovascular Therapies on Cerebral Arteriovenous Malformations: Trends in National Inpatient Sample 1993-2015

Shivani Baisiwala; Pedram Golnari; Pouya Nazari; Sameer Ansari; Ali Shaibani; Michael Hurley; Matthew Potts; Babak Jahromi (Chicago, IL)

CEREBROVASCULAR

1127. Impact of statewide and citywide prehospital transportation protocols on stroke volumes in primary stroke centers: the SBH Bronx experience

Ralph Rahme, MD; Brittany Owusu-Adjei Thomson; Rose Fluss, BA; Nkemdirim Ukoha; Christy Chon; Barbara Badio; Chidinma Nwaogbe; Stephanie Moawad; Kaitlyn Zugibe; Scott Segan, MD; Ridwan Shabsigh, MD (Bronx, NY)

CEREBROVASCULAR

1128. Improving Tractography in Brainstem Cavernoma Patients by Distorsion Correction

Sebastian Ille, MD; Sebastian Ille, MD; Marc Grziwotz; Maria Wostrack, MD; Bernhard Meyer, MD; Sandro Krieg, MD (Munich, Germany)

CEREBROVASCULAR

1129. In-hospital Stroke in the Endovascular Era

Jacques Jose Lara-Reyna; Jacques Lara-Reyna, MD; Kurt Yaeger, MD; Thomas DiChiara, MS; Abhiraj Bhimani, MD; J Mocco, MD; Johanna Fifi, MD (New York, NY)

CEREBROVASCULAR

1133. Initial Experience With a Novel Minimally Invasive Intracerebral Hemorrhage Evacuation System

Zachary Troiani; Luis Ascanio, MD; Kurt Yaeger, MD; Jacques Lara-Reyna, MD; Muhammad Ali, BA; Christopher Kellner, MD (New York, NY)

CEREBROVASCULAR

1135. Intraarterial and Intravenous Videoangiography with ICG and Fluorescein: A Quantitative Comparative Investigation of Fluorescence Videoangiography Methods with Clinical Implications

Evgenii Belykh; Xiaochun Zhao, MD; Michael Lawton, MD; Mark Preul (Irkutsk, Russian Federation)

CEREBROVASCULAR

1136. Intracavitary Neuroprotection Following Intracerebral Hemorrhage: A Proposed Ovine Model to Demonstrate the Safety and Efficacy of Novel Therapeutic Strategies

Turner S Baker; Turner Baker, BSc; J Mocco, MD; Christopher Kellner, MD; Hazem Shoirah, MD; Anthony Costa, PhD (New York, NY)

CEREBROVASCULAR

1140. Intraoperative Vasospasm During Aneurysm Clipping For Subarachnoid Hemorrhage Relieved by Simultaneous Administration of Intra-Arterial Verapamil and Local Papaverine

Andrew J. Caras; Christopher Alexander, BS; Azedine Medhkour, MD (Toledo, OH)

CEREBROVASCULAR

1142. Is Y-stenting Indicated For Wide Neck Bifurcation Aneurysms: Experience With 3D Shoulder Technique

Joshua H Weinberg; Ahmad Sweid; Daniel Joffe; Michael Reid Gooch; Stavropoula Tjoumakaris; Pascal Jabbour; Robert Rosenwasser; Hekmat Zarzour (Philadelphia, PA)

CEREBROVASCULAR

1143. Laboratory Complications Following Mechanical Thrombectomy: Functional and Neurological Outcomes

Cory L. Chang; Saurabh Sudesh, MS; Brandon Christophe, BA; Victoria Dreyer; Alex Brenner, BA; Lucas Axiotakis Jr., BS; Rebeca Aragón García, BS; E. Sander Connolly Jr., MD (New York, NY)

CEREBROVASCULAR

1144. Laser Light Source For Surgical Microscopy: Advanced Imaging And Capabilities

Kiyoshi Saito, MD, PhD, IFAANS; Taku Sato, MD, PhD; Yuhei Ito, MD; Ryo Hiruta, MD; Yosuke Kuromi, MD, PhD; Masayuki Yamada, MD, PhD; Masazumi Fujii, MD, PhD; Jun Sakuma, MD, PhD; Kyouichi Suzuki, MD, PhD (Fukushima, Japan)

CEREBROVASCULAR

1145. Laser Speckle Contrast Imaging for Visualizing Blood Flow During Cerebral Aneurysm Surgery: Comparison with Indocyanine-Green Angiography

David Miller; Colin Sullender, PhD; Andrew Dunn, PhD; Ramsey Ashour, MD (AUSTIN, TX)

CEREBROVASCULAR

1151. Lower Blood Pressure Post-Stroke Mechanical Thrombectomy is associated with Good Outcomes but Not sICH

Nguyen Hoang, MD; nguyen hoang, MD; Varun Shah; Jessica Granger, BS; Patrick Youssef, MD; Ciaran Powers, MD, PhD; Shahid Nimjee, MD, PhD (Columbus, OH)

CEREBROVASCULAR

1152. M2 Segment Thrombectomy Is Not Associated With Increased Complication Risk Compared To M1 Segment: A Systematic Review And Meta-Analysis Of Recent Literature

Andrew J. Caras; Christopher Alexander, BS; Azedine Medhkour, MD (Toledo, OH)

CEREBROVASCULAR

1156. Magnetic Resonance Venography to Assess Access Route Before Inferior Petrosal Sinus Sampling

Kikutaro Tokairin, MD; Toshiya Osanai, MD, PhD; Noriyuki Fujima, MD, PhD (Sapporo, Japan)

CEREBROVASCULAR

1161. Mechanical Thrombectomy For Acute Large Vessel Strokes With Low ASPECT Score (0-5): A Meta-analysis

Dorothy Yim; Hamidreza Saber, MD; Gary Rajah, MD; Ntami Echeng (Rowland Heights, CA)

CEREBROVASCULAR

1162. Mechanical Thrombectomy In Acute Ischemic Stroke Patients Greater Than 90 Years Of Age Experience In 26 Patients In A Large Tertiary Care Center: Outcome Comparison With Younger Patients

Joshua H Weinberg; Ahmad Sweid; Vivian Xu; Kavya Shivashankar; Tyler Alexander; Jane Khalife; Nicholas Elmer; Michael Reid Gooch; Nabeel Herial; Pascal Jabbour; Robert Rosenwasser; Stavropoula Tjoumakaris (Philadelphia, PA)

CEREBROVASCULAR

1163. Mechanistic Review of Potential Role for Cannabidiol in Aneurysmal Subarachnoid Hemorrhage

Nicholas Allen Henry; Jill Roberts; Joseph Chappell; Tamra Langley; Justin Fraser (Lexington, KY)

CEREBROVASCULAR

1165. Medical Versus Endovascular Therapy in Treatment of Complete Symptomatic Carotid Occlusion

Andrew Douglas Gong; Muhammad Waqas, MBBS; Alexander Neary, BS; Aaron Levy; Kunal Vakharia, MD; Adnan Siddiqui, MD, PhD; Jason Davies, MD, PhD; Elad Levy, MD (Buffalo, NY)

CEREBROVASCULAR

1168. Micro Vascular Decompression (MVD) by Slinging of Tortuous Vertebrobasilar Artery (TVBA) to Petrous Dura :Technical video presentation

Forhad Hossain Chowdhury, MS; Mohammod Raziul Haque; Jalal Uddin Mohammod Rumi, MS; Mohammod Monir Hossain (Dhaka, Bangladesh)

CEREBROVASCULAR

1170. Microglia Rapidly Reconstruct the Damaged Blood Brain Barrier After Cerebrovascular Injury

Panagiotis Mastorakos, MD PhD; Dorian McGavern, PhD (Bethesda, MD)

CEREBROVASCULAR

1171. Microsurgery For Brain Arteriovenous Malformations

Batuk D Diyora; Batuk Diyora (Mumbai, India)

CEREBROVASCULAR

1172. Microsurgical Clipping Versus Coiling in the Treatment of Ruptured Intracranial sacular Aneurysms: A Meta-Analysis

Nicollas Nunes Rabelo, MD; NICOLLAS RABELO; BRUNO DA COSTA; LOUISE OLIVEIRA; Antonio Boechat; Manoel Teixeira; EBERVAL FIGUEIREDO (Ribeirao Preto, Brazil)

CEREBROVASCULAR

1173. Microsurgical Clipping of Posterior Communicating ( Pcom ) Artery Aneurysms: Outcome Analysis of Our Series

Gopal Raman Sharma, MD, IFAANS (Kathmandu, Nepal)

CEREBROVASCULAR

1174. Microsurgical Treatment of Unruptured Anterior Communicating Artery Aneurysms: Approaches and Outcomes in a Large Contemporary Series

Eric S. Nussbaum, MD, FAANS, FACS; jillienne touchette; michael madison; james goddard; jeff lassig; jodi lowary; leslie nussbaum (Minneapolis, MN)

CEREBROVASCULAR

1176. Middle Meningeal Artery Embolization For Chronic Subdural Hematoma: A Novel Measure Of Treatment Effectiveness

Joseph O. Haynes; Monica Mureb, BS; Douglas Kondziolka, MD; Howard Riina, MD; Omar Tanweer, MD (Rochester, NY)

CEREBROVASCULAR

1177. Middle Meningeal Artery Embolization for Chronic Subdural Hematomas: A Systematic Review and Meta-analysis

Candice Le Nguyen; Candice Nguyen, BS; Quan Do, BS; C.J. Jared Chen, MD; Natasha Ironside; Beatrice Ugiliweneza; Emily Sieg, MD, MS; Robert James; Dale Ding, MD (Louisville, KY)

CEREBROVASCULAR

1178. Middle Meningeal Artery embolization with N-butyl cyanoacrylate (n-BCA) for chronic subdural hemorrhage

Luis Ascanio, MD; Zachary Troiani; Benjamin Yim; Daidre Rowe; Shahram Majidi; Johanna Fifi, MD; Alejandro Berenstein, MD; J Mocco, MD; Christopher Kellner, MD (Quincy, MA)

CEREBROVASCULAR

1179. Middle meningeal artery-sphenoparietal sinus iatrogenic arteriovenous fistula following pterional craniotomy and aneurysm clipping

Lekshmi Peringassery Sateesh; Vinayak Narayan, MD; Anil Nanda (Columbus, OH)

CEREBROVASCULAR

1180. Minimally Invasive Endoscopic Intracerebral Hemorrhage Evacuation Patients with Biopsy-Proven Cerebral Amyloid Angiopathy

Luis Ascanio, MD; Zachary Troiani; Muhammad Ali; J Mocco, MD; Christopher Kellner, MD (Quincy, MA)

CEREBROVASCULAR

1181. Minimally Invasive Evacuation Of Severe Intraventricular Hemorrhage Using The BrainPath Endoport-Assisted Microsurgical System

Georgios Alexopoulos, MD; Michael Prim, MD; Maheen Khan, MD; Nabiha Quadri, MD; Jorge Urquiaga, MD; Najib El Tecle, MD; Jeroen Coppens, MD (St Louis, MO)

CEREBROVASCULAR

1182. Minimally Invasive Surgical ICH Evacuation: Assessing The Use Of The Angiosuite

Turner S Baker; Turner Baker, BSc; Christopher Kellner, MD; Anthony Costa, PhD; J Mocco, MD (New York, NY)

CEREBROVASCULAR

1183. Minimally Invasive Technique (Nummular Craniotomy) for Mesial Temporal Lobe Epilepsy: a Comparison of Two Approaches

Nicollas Nunes Rabelo, MD; STENIO SARMENTO; NICOLLAS RABELO; EBERVAL FIGUEIREDO (Ribeirao Preto, Brazil)

CEREBROVASCULAR

1184. Moyamoya-like Intracranial Vessel Stenosis in a Patient with an MYH11 Mutation: A Case Report and Review of Two Prior Cases

Anthony S. Larson; Lorenzo Rinaldo, MD, PhD; Waleed Brinjikji, MD; Giuseppe Lanzino, MD (St. Paul, MN)

CEREBROVASCULAR

1188. Multiple Aneurysms with Single Flow Diverter, Less is More

Luis Eduardo Perez Martinez; Nerea Martin del Campo Guinovart; Mariana Roman Zamudio; Jose Figueroa-Sanchez, MD, MBA (Monterrey, Mexico)

CEREBROVASCULAR

1189. NAMPT mediates hypoxic conditioning-induced neurovascular protection in subarachnoid hemorrhage

Deepti Diwan; Deepti Diwan, PhD; Ananth Vellimana, MD; Jane Yuan, BA; Gregory Zipfel, MD (Saint Louis, MO)

CEREBROVASCULAR

1190. National Estimates Of Recurrent Intracranial Hemorrhage Among Patients With Ruptured Intracranial Aneurysms

Luke Alan Mugge, MD; Luke Mugge; Saqib Chaudhry; Iqra Akhtar; Adnan Qureshi (Falls Church, VA)

CEREBROVASCULAR

1191. National Trends In Utilization And Outcomes Of Endovascular Treatment In Acute Ischemic Stroke Patients In Pre- And Post-stent Retriever Era In The United States

Luke Alan Mugge, MD; Luke Mugge; Saqib Chaudhry; Iqra Akhtar; Adnan Qureshi (Falls Church, VA)

CEREBROVASCULAR

1192. National Trends In Utilization And Outcomes Of Thrombolytic Use By Drip And Ship Paradigm In Acute Ischemic Stroke Patients In United States

Luke Alan Mugge, MD; Luke Mugge, MD; Saqib Chaudhry; Iqra Akhtar; Adnan Qureshi (Falls Church, VA)

CEREBROVASCULAR

1194. Occipital Artery to Middle Cerebral Artery Bypass in Pediatric Moyamoya Disease: Rescue Therapy After Failed Revascularization

Hugo A. Andrade Barazarte, MD; Akikazu Nakamura, MD, PhD; Juha Hernesniemi; Akitsugu Kawashima, MD, PhD (Barquisimeto, Venezuela)

CEREBROVASCULAR

1197. Outcomes After Thrombectomy For Proximal And Distal M1 Occlusions

Bart Thaci, MD; Bart Thaci, MD; Gustavo Chagoya, MD; Galal Elsayed, MD; Arsalaan Salehani, MD; Brandon Pope, BS; Joshua Bernstock; Mark Harrigan (Sacramento, CA)

CEREBROVASCULAR

1203. Peri-Operative Outcomes for Adult Patients with the Modified Metabolic Syndrome Undergoing Elective Carotid Endarterectomy for Stenosis

Nathan Pertsch; Andreea Seicean; Krissia Rivera Perla; Steven Toms, MD, MPH; Robert Weil, MD (Providence, RI)

CEREBROVASCULAR

1207. Pipeline Embolization for Recurrent Vertebral Artery Thromboembolic Events secondary to a Misplaced Pedicle Screw: A Case Report

Anthony S. Larson; Anthony Mikula, MD; Waleed Brinjikji, MD; Giuseppe Lanzino, MD (St. Paul, MN)

CEREBROVASCULAR

1208. Poppen Clamp Application and Internal Carotid Artery Ligation For The Treatment of Traumatic Carotico-Cavernous Fistula With Associated Pseudoaneurysm

Manilyn Ann Hong; Gerardo Legaspi, MD (Manila, Philippines)

CEREBROVASCULAR

1210. Post-procedural Platelet Function Testing in Neuroendovascular Surgery is Predictive of Ischemic Complications

Jason J. Kim; Yiping Li; Beverly Kienitz; David Niemann; Azam Ahmed (Madison, WI)

CEREBROVASCULAR

1211. Pre- and Intraoperative Application of Functional Data Obtained by Navigated Transcranial Magnetic Stimulation for Cerebral Cavernous Malformations

Sebastian Ille, MD; Sebastian Ille, MD; Maria Wostrack, MD; Bernhard Meyer, MD; Sandro Krieg, MD (Munich, Germany)

CEREBROVASCULAR

1212. Pre-Existing Medical Conditions and Functional Outcomes Following Mechanical Thrombectomy

Alex W Brenner; Cory Chang, AB; Saurabh Sudesh, BA; Brandon Christophe, BA; Victoria Dreyer; Rebeca Aragón García, BS; E. Connolly Jr., MD (New York, NY)

CEREBROVASCULAR

1214. Predicting Neurologic Decline in Ischemic Cerebellar Stroke

Douglas Ryan Taylor, MD; Jaafar Basma, MD; G. Jones; Jock Lillard, MD; David Wallace, BS; Sonja Ajmera, BS; L. Michael, MD (Memphis, TN)

CEREBROVASCULAR

1215. Prediction of Mortality After Evacuation of Supratentorial Spontaneous Intracerebral Hemorrhage

Haydn Hoffman, MD; Muhammad Jalal, BS; Lawrence Chin, MD (Syracuse, NY)

CEREBROVASCULAR

1216. Predictors of 30 Day Mortality After Minimally Invasive Endoscopic Intracerebral Hemorrhage Evacuation

Muhammad Ali; Luis Ascanio, MD; Zachary Troiani, BA; Nicki Mohammadi, BA; J Mocco, MD, MS; Christopher Kellner (New York, NY)

CEREBROVASCULAR

1217. Predictors of Excellent Long Term Functional Outcome Following Minimally Invasive Endoscopic Intracerebral Hemorrhage Evacuation

Muhammad Ali; Zachary Troianai, BA; Luis Ascanio, MD; Nicki Mohammadi, BA; J Mocco, MD, MS; Christopher Kellner (New York, NY)

CEREBROVASCULAR

1219. Predictors of Length of Stay after Minimally Invasive Endoscopic Intracerebral Hemorrhage Evacuation

Muhammad Ali; Zachary Troiani, BA; Luis Ascanio, MD; Nicki Mohammadi, BA; Kurt Yaeger, MD; Jacques Lara-Reyna, MD; J Mocco, MD, MS; Christopher Kellner, MD (New York, NY)

CEREBROVASCULAR

1222. Preliminary Data of Phase I Clinical Trial Of Intraparenchymal Bone Marrow Stem Cell (BMSC) Transplantation Against Acute Ischemic Stroke (RAINBOW Study)

Masahito Kawabori; Hideo Shichinohe; Satoshi Kuroda; kiyohiro Houkin (Sapporo, Japan)

CEREBROVASCULAR

1224. Prevalence of Recurrent Artery of Heubner: A Meta-Analysis of Anatomical Characteristics

Kamil Krupa; Bendik Skinningsrud; Dominik Taterra; Julia Tryzna; Przemysław Pękala, MD, PhD; Jerzy Walocha; Krzysztof Tomaszewski, MD, PhD (Kraków, Poland)

CEREBROVASCULAR

1225. Prognostics and Management of Patients with Moyamoya Syndrome and Sickle Cell Disease: A Retrospective Cohort Study

Sarah H Newman; James Malcolm, MD, PhD; Jason Boulter, MD; Ivan Pradilla, MD; Gustavo Pradilla, MD (Atlanta, GA)

CEREBROVASCULAR

1226. Projected Increases in Aneurysmal Subarachnoid Hemorrhage, Endovascular Coiling, and Surgical Clipping in the United States

Sean Neifert; Dominic Nistal, BS; Michael Martini, BS; Kurt Yaeger, MD; Rui Feng, MD; Christopher Kellner, MD; J Mocco, MD; R Macdonald, MD, PhD; Eric Oermann, MD (New York, NY)

CEREBROVASCULAR

1228. Protective Effects Of Obstructive Sleep Apnea On Outcomes After Subarachnoid Hemorrhage: A Nationwide Analysis

Christian Marcel Kaculini; David Wallace, MD; Audrey Haywood, DO; Joel Michalek, PhD; Justin Mascitelli, MD; Ali Seifi, MD; Ramesh Grandhi, MD (San Antonio, TX)

CEREBROVASCULAR

1230. Quantitative Susceptibility Mapping and Vessel Wall Imaging as Screening Tool to Detect Microbleed in Sentinel Headache

Daizo Ishii; Daichi Nakagawa; Mario Zanaty; Jorge Roa; Sami Kasab; Amir Shaban; Joseph Hudson; Lauren Allan; Edgar Samaniego; David Hasan (Iowa City, IA)

CEREBROVASCULAR

1233. Radial Arterial Access For Intraoperative Thoracolumbar Spinal Angiography In The Prone Position

Joseph O. Haynes; Erez Nossek; Maksim Shapiro, MD; Bree Chancellor, MD; Anthony Frempong-Boadu, MD; Simone Peschillo, MD; Hunter Alves; Omar Tanweer, MD; David Gordon, MD; Eytan Raz, MD (Rochester, NY)

CEREBROVASCULAR

1236. Recurrent Subdural Hematoma Associated with Arachnoid Cyst: A Case Report

Nancy Guadalupe Moreno; Andres Roblesgil-Medrano, BSc; Monica Herrera-Rodriguez, BSc; Katya Ortiz-Guzman, BSc; Enrique Caro-Osorio, MD; Jose Figueroa-Sanchez, MD (San Lucas el Grande, Mexico)

CEREBROVASCULAR

1238. Relationship between Periodontitis and Intracranial Aneurysm

Nicollas Nunes Rabelo, MD; NICOLLAS RABELO; BRUNA VAROTTO; PAULO BRAZ DA SILVA; JOSÉ TADEU DE SIQUEIRA; MANOEL TEIXEIRA; EBERVAL FIGUEIREDO (Ribeirao Preto, Brazil)

CEREBROVASCULAR

1239. Relationship of Occlusion Site and Outcomes After Intracranial Stenting for Acute Ischemic Stroke

Christine Tschoe; Colton Smitch; Kyle Fargen, MD; Patrick Brown, MD; Stacey Wolfe, MD (Winston-Salem, NC)

CEREBROVASCULAR

1244. Retrospective Review of Hemicraniectomy Following Thrombectomy in One Institution

Ryan Michael Holland, MD; Adisson Fortunel; Ariel Stock; David Altschul; Neil Haranhalli (Bronx, NY)

CEREBROVASCULAR

1245. Reversible Cerebral Vasoconstrictive Syndrome preceded by Minor Head Trauma

Lena Mary Houlihan; Philip O Halloran, MD; John Lynch; Peter Widdess-Walsh; Paul Brennan; Mohsen Javadpour (Phoenix, AZ)

CEREBROVASCULAR

1247. SCUBA: A Novel Technique for Management of Aneurysmal Intracerebral Hemorrhage

Alexander J. Schupper, MD; Kurt Yaeger, MD; Luis Ascanio-Cortez, MD; Zachary Troiani, BS; Christopher Kellner, MD (New York, NY)

CEREBROVASCULAR

1249. Safety And Efficacy Of An Accelerated Deflation Algorithm For Patent Hemostasis In Transradial Neurovascular Procedures

Koushik Mantripragada; Nikolas Echeverry, BS; Stephen Shapiro; Brian Snelling, MD (Dunedin, FL)

CEREBROVASCULAR

1250. Safety and Yield of 3-Dimensional Rotational Angiogram as Part of Intra Operative Angiography for Cerebrovascular Surgery in The Hybrid Operating Theater

Oded Goren, MD; George bourdages; Christoph Griessenauer, MD; clemes schirmer, MD; shamsher dalal, MD; Gregory Weiner, MD; Oded Goren, MD (Danville, PA)

CEREBROVASCULAR

1251. Salvage Technique for Deformed WEB Device After Deployment, a Technical Note.

Zaid Aljuboori, MD; Nicolas Khattar, MD; Dale Ding, MD; Robert James, MD (Louisville, KY)

CEREBROVASCULAR

1252. Seasonal Variation in Aneurysmal Subarachnoid Hemorrhage and Vasospasm, an Analysis of the National Inpatient Sample

Sibi Rajendran, MD; Ryan Austerman, MD, MS; Gavin Britz (Houston, TX)

CEREBROVASCULAR

1256. Sex-Differences in Intracranial Hemorrhage in Appalachia

Nick DiMeo; Justin Fraser, MD (Lexington, KY)

CEREBROVASCULAR

1259. Skull Base Osteomyelitis With Complete Occlusion of the Right Internal Carotid Artery Presenting As A Stroke: Case Report And Review of The Literature

Caleb Vandyke; Matthew Hysell, MD; Kyle VanKoevering, MD; Erik Arnits, DO; Sheila Philpott, MD (St Joseph, MI)

CEREBROVASCULAR

1260. Sodium Defects and Peri-Operative Outcomes in Adults Undergoing Elective Primary Carotid Endarterectomy for Stenosis

Nathan Pertsch; Andreea Seicean; Daniel Kraft, BA; Steven Toms, MD, MPH; Robert Weil, MD (Providence, RI)

CEREBROVASCULAR

1261. Spontaneous Thrombosis Of Giant Dissecting Fusiform Middle Cerebral Aneurysm Following Double-Barrel Superficial Temporal Artery – Middle Cerebral Artery Bypass: A Case Report Of Decision-Making In Limited Resource Environment.

Trong Huynh; Daniel Felbaum, MD; Walter Jean, MD; Hung Ngo, MD (Scotch Plains, NJ)

CEREBROVASCULAR

1268. Stimulating The Facial Nerve To Treat Ischemic Stroke: A Systematic Review

Turner S Baker; Turner Baker, BSc; Thomas Oxley, MD, PhD; Anthony Costa, PhD (New York, NY)

CEREBROVASCULAR

1269. Study Protocol:Glibenclamide in Aneurysmatic Subarachnoid Hemorrhage (GASH)

Nicollas Nunes Rabelo, MD; Bruno Cosra, MD; isabella Windlin; NICOLLAS RABELO; VITOR YAMAKI; EDWIN KORTEBA; EBERVAL FIGUEIREDO (Ribeirao Preto, Brazil)

CEREBROVASCULAR

1270. Studying the Efficacy of Statins and Steroids in Treatment of Chronic Subdural Hematoma after Middle Meningeal Artery Embolization

Andrew Douglas Gong; Mohammad Waqas, MBBS; Steven Housley, MD; Hamid Rai; Felix Chin, BS; Kunal Vakharia, MD; Adnan Siddiqui, MD, PhD; Jason Davies, MD, PhD; Elad Levy, MD (Buffalo, NY)

CEREBROVASCULAR

1271. Submaximal Angioplasty in the Treatment of Patients with Symptomatic ICAD: A Systematic Review and Meta-Analysis

Mohamad Bydon, MD, FAANS ; Seyed Seyedsaadat, MD; Yagiz Yolcu, MD; Ain Neuhaus, DPhil; Asim Rizvi, MD; Muayad Alzuabi, MD; Mohammad Murad, MD, MPH; Waleed Brinjikji, MD; DAvid Kallmes, MD (Rochester, MN)

CEREBROVASCULAR

1276. Surgical Versus Endovascular Treatments For Fusiform Intracranial Aneurysms: Systematic Review And Patient-Level Meta-Analysis

João Paulo Mota Telles; Davi Jorge Solla, MD, PhD; Vitor Yamaki, MD; Saul da Silva, MD, PhD; Manoel Teixeira, MD, PhD; Eberval Figueiredo, MD, PhD (Sao Paulo, Brazil)

CEREBROVASCULAR

1277. Survival from Ruptured Intracranial Aneurysms: 120 Years of Progress

YouRong Sophie Su, MD; Eric Zager, MD; Sherman Stein (Philadelphia, PA)

CEREBROVASCULAR

1284. Teaching Radial Artery Catheterization Using 3D Printing: A Feasibility Study

Lohit Velagapudi; Nathan Ott, BS; Ahmad Sweid, MD; Robert Pugliese, PharmD; J Fields, MD; Pascal Jabbour, MD (Philadelphia, PA)

CEREBROVASCULAR

1286. Tentorial Venous Anatomy: Variation in the Normal Population

Jared Rosenblum; Jessa Tunacao, MD; Vibhu Chandrashekhar, MS; Mateus Neto, MD; Abhishek Jha, MD; Wenya Bi, MD, PhD; James Smirniotopoulos, MD; Clifford Weiss, MD; Ossama Al-Mefty, MD; John Heiss, MD (Bethesda, MD)

CEREBROVASCULAR

1287. The Association Of Cerebrospinal Fluid Drainage In Aneurysmal Subarachnoid Hemorrhage (aSAH) Patients With Preoperative Factors, Outcomes And aSAH-Related Postoperative Complications.

Atsushi Sasahara; Hidenori Ohbuchi; Hidetoshi Kasuya (Tokyo, Japan)

CEREBROVASCULAR

1291. The Current Clinical Picture of Cerebral Proliferative Angiopathy: Systematic review

João Paulo Mota Telles; Vitor Yamaki, MD; Davi Jorge Solla, MD; Glaucia Lexy Liem, MD; Manoel Teixeira, MD, PhD; Eric Homero Paschoal, MD, PhD; Eberval Figueiredo, MD, PhD (Sao Paulo, Brazil)

CEREBROVASCULAR

1294. The Persinstent Mitochondrial Oxidative Stress In Cerebral Arteries Due To Chronic Arterial Hypertension Can Be Reversed By SS-31 In Mild Traumatic Brain Injury Rat Model

Andras Czigler; Luca Toth; Nikolett Szarka; Gergely Berta; Krisztina Amrein; Akos Koller; Endre Czeiter; Dominika Lendvai-Emmert; Stefano Tarantini; Zoltan Ungvari; Andras Buki; Peter Toth (Pécs, Hungary)

CEREBROVASCULAR

1296. The Role of Altered CSF Dynamics in Remote Cerebellar Hemorrhage: a Case Series

Esther Wu; Matthew Anderson, MD; Petra Klinge, MD, PhD (Providence, RI)

CEREBROVASCULAR

1299. The Use of Antiplatelet Agents and Anticoagulation in the 24-hour IV-tPA Window For Neurointervention

Mandy Jo Binning, MD, FAANS; Daniel Felbaum, MD; Kenneth Liebman, MD; Erol Veznedaroglu, MD; Nanak Chugh, MD; Adam Arthur, MD; Nitin Goyal, MD; Elad Levy, MD; Kunal Vakharia, MD; Aditya Pandey, MD; Badih Daou, MD; Rabih Tawk, MD (New Hope, PA)

CEREBROVASCULAR

1300. The Use of Machine Learning Algorithms to Predict 30-day Readmission in Patients with Aneurysmal Subarachnoid Hemorrhage

Haydn Hoffman, MD; Ahmed Souid; Lawrence Chin, MD (Syracuse, NY)

CEREBROVASCULAR

1301. Three-Vessel Anastomosis for Direct Bihemispheric Cerebral Revascularization

Kristine Ravina; Shivani Rangwala, MD; Benjamin Yim, MD; Jordan Lam, MD; Ben Strickland, MD; Joseph Carey, MD; Jonathan Russin, MD (Los Angeles, CA)

CEREBROVASCULAR

1307. Total Cholesterol Is An Independent Predictor Of Decreased Mortality And Delayed Cerebral Ischemia Following Aneurysmal Subarachnoid Hemorrhage

Boyi Li; Matthew McIntyre, BA; Chirag Gandhi, MD; Andrew Long, BS; Alexander Van Hoof, BS; Mohamed Halabi, BS; Adil Afridi, BS; Meic Schmidt, MD; Chad Cole, MD; Justin Santarelli, MD; Fawaz Al-Mufti, MD; Christian Bowers, MD (Valhalla, NY)

CEREBROVASCULAR

1308. Transition To Radial Approach For Neurovascular Procedures Is Safe And Convenient: Characterization Of A Learning Experience

David Vergara-Garcia, MD; Santiago Gomez-Paz, MD; Timothy Robinson, MD; Justin Moore, MD; Christopher Ogilvy, MD; Ajith Thomas, MD (Bogota, Colombia)

CEREBROVASCULAR

1312. Transradial approach as the first line in anterior circulation neurointervention

Junichi Koyama; Yoshiki Hanaoka; Tetsuyoshi Horiuchi, PhD (Matsumoto, Japan)

CEREBROVASCULAR

1315. Treatment of Intracranial Aneurysms Associated with Moyamoya Disease: A Midwestern USA Single Center Case Series

Anthony S. Larson; Lorenzo Rinaldo, MD, PhD; Waleed Brinjikji, MD; Giuseppe Lanzino, MD (St. Paul, MN)

CEREBROVASCULAR

1316. Treatment of wide-necked aneurysms at the basilar apex utilizing an antegrade approach to stent-assisted coiling.

Awais Vance, MD; Megan Still, MD; Matthew Fiesta, MD; Babu Welch, MD (Dallas, TX)

CEREBROVASCULAR

1319. Trends in Incidence and Mortality by Hospital Teaching Status and Location in Aneurysmal Subarachnoid Hemorrhage

Sean Neifert; Michael Martini, BS; Dominic Nistal, BS; Trevor Hardigan, MD, PhD; Travis Ladner, MD; R Macdonald, MD, PhD; Eric Oermann, MD (New York, NY)

CEREBROVASCULAR

1320. Trends in Ischemic Stroke Incidence, Case-Fatality, and Age-Adjusted Mortality Rates in the United States

Sean Neifert; Michael Martini, BS; Dominic Nistal, BS; Trevor Hardigan, MD, PhD; Rui Feng, MD; Eric Oermann, MD (New York, NY)

CEREBROVASCULAR

1322. Unique Microvascular Anastomoses Task Trainer for Neurosurgical Resident Learning

Callum Dewar; Jake Stewart, BS; Carter Bell; Jonathan Garst, MD; Julian LIn, MD (Peoria, IL)

CEREBROVASCULAR

1325. Usefulness of Licox Monitor in Moyamoya Disease: A Case Report

Theresa Gammel; Elizabeth Wirkowski, MD; Charles Mikell, MD; Susan Fiore, MS (East Setauket, NY)

CEREBROVASCULAR

1326. Utility of MRI and Lumbar Puncture in Identifying Venous Sinus Stenosis in Idiopathic Intracranial Hypertension

Mehmet Enes Inam; Victor Lopez-Rivera, MD; Faheem Sheriff, MD; Luis De Alba, MD; Elvira Lekka, MD; Sunil Sheth, MD; Clark Sitton, MD; Peng Chen, MD (Houston, TX)

CEREBROVASCULAR

1330. Vascularisation of Internal capsule: Fiber dissection study correlated with MR Tractography and Angiography

PELİN kuzucu; PELİN KUZUCU; GÖKTUĞ ÜLKÜ; PINAR ÇELTİKÇİ; EMRAH ÇELTİKÇİ; AHMET MEMDUH KAYMAZ; ÖMER HAKAN EMMEZ; AHMET AKBAŞ; MURAT ŞAKİR EKŞİ; M.NECMETTİN PAMİR; ABUZER GÜNGÖR (ANKARA, Turkey)

CEREBROVASCULAR

1335. Volumetric Sizing Analysis Of The Woven Endobridge (WEB) Device

Kevin A. Shah, MD; Tim White, MD; Ina Teron, MD; Amir Dehdashti, MD, FACS; Katz Jeffrey, MD; Henry Woo, MD (Manhasset, NY)

HISTORY

1340. An Analysis of Medicare Reimbursement for Neurosurgeon Office Visits: 2010-2018

Maya T Harrington; Jordan Pollock, BS; Jack Haglin, BS; Kent Richter, BS; Naresh Patel, MD (Scottsdale, AZ)

HISTORY

1341. Dr. John M. Tew and his Contributions to the Neurosurgical Treatment of Trigeminal Neuralgia

Anthony S. Larson; Andrew Grande, MD (St. Paul, MN)

HISTORY

1345. From Frame to Frameless—Framing the Evolution of Neurosurgical Head Holders

Anissa Saylany; Sara Ganaha, MD; Nikhil Sharma, MS; Ronald Reimer, MD; Jang Yoon, MD, MSc (Philadelphia, PA)

HISTORY

1347. History and Legacy of 150th Harvey William Cushing Birth Anniversary

Josué da Silva Brito; Isabela Silva Simões; Lara Mariana Rosa; Christiano Tadeu Sanches Mattos Kilesse; Murillo Cintra Husni; José Luiz de Faria; Nícollas Nunes Rabelo (Paracatu, Brazil)

HISTORY

1353. Patient First Philosophies and Neurosurgical Health Maintenance

Christian G. Zimmerman, MD, FAANS, FACS; Mckenzie Malach, BS; Ariana Garabedian, BS (Boise, ID)

HISTORY

1355. The Effect of Academic Rank and Years in Practice on Bibliometric Profile Growth Rates Among Academic Neurosurgeons in the New York Metropolitan Area

Dhruv Shankar; Paul Chung; Theodore Hannah, BA; Nickolas Dreher, BA; Adam Li, BS; Jennifer Dai, BS; Alexander Post; Tanvir Choudhri, MD (New York, NY)

HISTORY

1357. The “Special Field” of Dreams: Building a Destination Neurosurgical Practice

Courtney Pendleton, MD; Henry Brem, MD; Robert Rosenwasser, MD, MBA; Alfredo Quinones-Hinojosa, MD (Philadelphia, PA)

PAIN

1361. A meta-analysis of gender differences in chronic pre-operative opioid use in spine surgery patients

ChungWang Lee; Yookyung Seo; Sharmila Devi, MBBS; Yu Tung Lo; Angela Simon; Kelsey Zborovancik; Mona Alsheikh; Nayan Lamba, MD; Timothy Smith; Rania Mekary; Linda Aglio, MD, MS (Boston, MA)

PAIN

1362. Catastrophic Failure Of Spinal Cord Stimulator Paddle Electrodes In The Cervical Spine

Stacy E. Hatcher; Ellen Air, MD, PhD (Detroit, MI)

PAIN

1364. Cost Analysis of Cordotomy and Intrathecal Pain Pump Placement for the Treatment of Refractory Pain in Cancer Patients.

Zaid Aljuboori, MD; Brian Williams, MD; Joseph Neimat, MD (Louisville, KY)

PAIN

1368. Effect of SCS on M1 and M2 Microglia Activation

William J. Smith; Satya Sanapati; David Cedeño, PhD; Courtney Kelley, MS; Dana Tilley, PhD; Ricardo Vallejo, MD, PhD (West Lebanon, NH)

PAIN

1369. Effects of Streamlined High Dose and High Frequency Stimulation in SCS to Determine Optimal Settings

Julie G. Pilitsis, MD, PhD, FAANS; Michael Gillogly; Olga Khazen, BS; Breanna Sheldon, MS; Marisa DiMarzio, PhD; Kimberly Thill, BS; Lucian Williams (Albany, NY)

PAIN

1371. Gamma Knife Radiosurgery for Trigeminal Neuralgia Provides Greater Pain Relief at Higher Dose Rates

Andrew I. Yang, MD, MS; Kobina Mensah-Brown, BS; Svetlana Kvint, MD; Connor Wathen; Frederick Hitti, MD, PhD; Love Buch, BS; Stephen Avery, PhD; Michelle Alonso-Basanta, MD, PhD; Jay Dorsey, MD, PhD; John Lee (Philadelphia, PA)

PAIN

1372. Headaches After Aneurysmal Subarachnoid Hemorrhage: Comparing Endovascular And Open Surgery

Vyas Viswanathan; Brandon Lucke-Wold; Chad Jones; Gabrielle Aiello; Youlei Li; Alexandra Ayala; Nicholas Nelson; Chris Fox; Katharina Busl (Chicago, IL)

PAIN

1373. Impact Of Siphon Control On Complications In Ventriculoperitoneal Shunt Implantation In Adults

Virendra R. Desai, MD; Saeed Sadrameli, MD; Amanda Jenson, MD; Samuel Asante, MD; Bradley Daniels, MD; Todd Trask, MD; Gavin Britz (Houston, TX)

PAIN

1374. Impact Of State Legislation On Opioid Prescribing After Lumbar Laminotomy

Christopher J Whiting; Deborah Cushing; Sarah Porter, MPH; Lauren Atkinson; Anand Rughani, MD (Falmouth, ME)

PAIN

1376. Medicare Utilization Trends for Spinal Cord Stimulators: 2010-2018

Jack Michael Haglin; Kent Richter, BS; Jordan Pollock, BS; Jakub Godzik, MD; Naresh Patel, MD (Scottsdale, AZ)

PAIN

1377. Modified Craniocervical Approach For Resection Of The Styloid Process in Patients With Eagle's Syndrome

Felipe Andres Constanzo Navarrete, MBBS; Ricardo Ramina, MD, PhD; Mauricio Coelho Neto, MD; Gustavo Jung, MD (Concepcion, Chile)

PAIN

1378. Multiple Recurrences of Trigeminal Neuralgia Caused by Deformation of the Trigeminal Nerve

Zaid Aljuboori, MD; Haring Nauta, MD, PhD (Louisville, KY)

PAIN

1379. Neurostimulation of Gasser Ganglion in Management of Trigeminal Neuropathic Pain: Case Report and Literature Review

Chabelly Gomez Gonzalez; Fortino Salazar-Salazar, MD; Juan Padilla-Martínez, MD; Mario Molina-DeHaro, MD (Monterrey, N. L., Mexico)

PAIN

1381. Occipital Neuralgia: A Neurosurgical Prospective

Muhammad Burhan Ud Din Janjua, MD; Tarek EL Ahmadieh, MD; Van Shen Ban, MD; Sumanth Reddy; Ali Ozturk, MD; Steven Hwang, MD; Amer Samdani, MD; Peter Passias, MD; William Welch, MD; Vincent Arlet, MD (Rockford, IL)

PAIN

1383. Opioid Prescriptions Following Major Spine Surgery: A Meta-Analysis Of Prevalence And Risk Factors

Jack Yu Tung Lo, MB,BS BSc; Michelle Lim-Watson; Yookyung Seo; Noemi Fluetsch; Moudi Alasmari; Mona Alsheikh; Nayan Lamba; Timothy Smith; Linda Aglio; Rania Mekary (Singapore, Singapore)

PAIN

1387. Potential Mechanisms of Trigeminal Neuralgia in Patients Presenting with Imaging Findings of Idiopathic Intracranial Hypertension

Brandon Philbrick; Solmaz Asnafi, MD; Amit Saindane, MD, MBA; D. Cory Adamson, MD, PhD (Atlanta, GA)

PAIN

1388. Predicting 30-day Perioperative Outcomes in Adult Spinal Deformity (ASD) Patients with Baseline Paralysis or Functional Dependence

Peter Gust Passias; Haddy Alas, BS; Cole Bortz, BA; Katherine Pierce, BS; Avery Brown, BS; Sara Naessig, BS; Waleed Ahmad; Bassel Diebo, MD; Shaleen Vira, MD; M. Burhan Janjua, MD; Michael Gerling, MD (Brooklyn Heights, NY)

PAIN

1390. Punctate Midline Myelotomy for Intractable Unilateral Ureteral Pain, a Case Report.

Zaid Aljuboori, MD; Tyler Ball, MD; Haring Nauta, MD, PhD (Louisville, KY)

PAIN

1395. The Role of an Intrathecal Drug Delivery Morphine Pump for Management of Chronic Pain

Muhammad Safwan Jalal; Muhammad Jalaluddin, MD (Syracuse, NY)

PEDIATRIC

1403. A Comparison of the Most Cited Literature in Pediatric Neurosurgery, Pediatric Surgery, and General Pediatrics

Kimberly Anne Major; Oliver Mrowczynski, MD; Elias Rizk, MD; Alice Cai (Annville, PA)

PEDIATRIC

1412. Bilateral Cephalohematoma with Sagittal Synostosis and Scaphocephaly

Avery Kopacz; Laszlo Nagy; Joshua Demke (Lubbock, TX)

PEDIATRIC

1414. Call for Collaboration: the Experience of Establishing a Multicenter Shunt Biobank

Jacob Gluski; Paul Zajciw, MS; Prashant Hariharan, MS; Amanda Morgan, BA; David Limbrick, MD, PhD; James McAllister, PhD; William Whitehead, MD, MPH; Andrew Jea, MD; Carolyn Harris, PhD (Detroit, MI)

PEDIATRIC

1416. Chiari II Malformation in infants and children: A Single Center Experience in Mexico

Louis Valery Carius Estrada; Gerardo SÁNCHEZ RODRÍGUEZ, MD; Alma Ramírez Reyes, MD (Mexico City, Mexico)

PEDIATRIC

1418. Clinical Experience with a Novel Retrograde Flushing Shunt System for the Treatment of Hydrocephalus

Joseph A. Falcone, MD; Michael Muhonen, MD; Joseph Madsen, MD; Ramin Eskandari, MD; Libby Infinger; Sudhakar Vadivelu, DO (Orange, CA)

PEDIATRIC

1419. Comparison of Prenatal Ultrasound and Postnatal Spinal Imaging to Determine Anatomic Lesion Level in Myelomeningocele

Katie Barnes; Isaac Shamblin; Jacob Lepard, MD; Betsy Hopson; Chase Cawyer, MD, MBA; Jeffrey Blount, MD; Brandon Rocque, MD, MS (Hoover, AL)

PEDIATRIC

1422. Concurrent Acute Lymphoblastic Leukemia and Low Grade Glioma in an Adolescent

Michael G. Kim, MD; John Wainwright, MD; George Kleinman, MD; Michael Tobias, MD; Avinash Mohan, MD (Valhalla, NY)

PEDIATRIC

1424. Crossing the Cervicothoracic Junction in Complex Pediatric Deformity Using Anterior Cervical Discectomy and Fusion

Brandon J. Toll; Amer Samdani, MD; Joshua Pahys, MD; Amir Amanullah, BS; Steven Hwang, MD (Biddeford, ME)

PEDIATRIC

1425. Current Epidemiology of Symptomatic Pediatric Moyamoya in the United States: A National Database Analysis

Edward Robert Smith, MD, FAANS; Leopold Arko IV, MD, MS; Alaa Montaser, MD, PhD; Coleman Riordan, BS; Jennifer Judge; David Zurakowski, PhD; Darren Orbach, MD, PhD; Edward Smith (Boston, MA)

PEDIATRIC

1426. Deformational Brachycephaly: The Clinical Utility of Cranial Index

Ranbir S. Ahluwalia; Jarret Foster, BS; Katherine Kelly, BS; Muhammad Owais Abdul Ghani; Alyssa Wiseman, MS; Madeleine Sherburn, BA; Georgina Sellyn, MA; Christopher Bonfield, MD; Chevis Shannon (Orlando, FL)

PEDIATRIC

1429. Diffuse Intrinsic Pontine Gliomas: Diagnostic Approach and Treatment Strategies

Muhammad Burhan Ud Din Janjua, MD; Vin Shen Ban, MD; Tarek El Ahmadieh, MD; Steven Hwang, MD; Amer Samdani, MD; Todd Alexander, MD; Angela Price, MD; Bradley Weprin, MD; Hunt Batjer, MD (Rockford, IL)

PEDIATRIC

1430. Do Small Pituitary Lesions In Pediatric Patients Need Neurosurgical Monitoring?

Genevieve Korst; Hunter Ratliff; Joseph McFarland, BS; Thomas Frank, MD; Zain Allison, MD; Daniel Branch, MD; Phillip Lee, MD; Aaron Mohanty, MD (Galveston, TX)

PEDIATRIC

1431. Dual Myelomeningoceles In Twins: Insights Into An Environmental Versus Genetic Etiology

Andrew J. Kobets, MD; Jordina Rincon-Torroella, MD; Nicholas Caffes, MD; Eric Jackson, MD; Shenandoah Robinson, MD; Alan Cohen, MD; Mari Groves, MD (Bronx, NY)

PEDIATRIC

1432. Early Morphologic Effects of Anterior Vault Distraction Osteogenesis on Intracranial Volume, Orbital Volume and Nasal Symmetry

Meena Thatikunta, MD; Mohammed Nuru, MS; Luke Pearson, MD; Thomas Moriarty, MD, PhD; Ian Mutchnick; William Gump, MD; Mark Chariker, MD; Scott Rapp, MD (Louisville, KY)

PEDIATRIC

1433. Effectiveness of Imaging Markers on Noncontrast Computed Tomography (CT) in Predicting Early Epidural Hematoma Growth

Avery Kopacz; TuongVy Dang; Laszlo Nagy; Mark Stevens (Lubbock, TX)

PEDIATRIC

1434. Endoscopic Strip Craniectomy For Sagittal Craniosynostosis: Intraoperative Findings And Changes In Head Shape Over Time

Suresh N. Magge, MD, FAANS; Hebzibha Alexander; Antonio Reyes Porras Perez; Marius Linguraru; Robert Keating, MD; Gary Rogers, MD (Washington, DC)

PEDIATRIC

1435. Expansive Decompression Cranioplasty in Craniodiaphyseal Dysplasia: A Case Report

Lean Angelo Ang Silverio; John David Mata, MD; Euvin Paul Lagapa, MD; Geraldo Legaspi, MD; Rina Angeles, MD; Bernie Tansipek, MD (Davao City, Philippines)

PEDIATRIC

1436. Functional Hemispherectomy using Magnetic Resonance (MR)-Guided Laser Induced Thermal Therapy (LITT)

Melissa Chua, MD; Joseph Madsen, MD; Archana Patel, MD; Sanjay Prabhu, MD; Scellig Stone, MD (Boston, MA)

PEDIATRIC

1438. Giant Skull Vault Defect in a Child caused by Langerhans Cell Histiocytosis: The ‘Calvaria Eating Disease’

Jaskaran Singh Gosal; Jigish Ruparelia, MS; Mayank Garg, MCh; Suryanaryanan Bhaskar; Deepak Jha, MCh; Poonam Elhence, MD (Jodhpur, India)

PEDIATRIC

1439. Growing Pains: The Use of ViviGen Cellular Bone Matrix in Pediatric Posterior Cervical Spine Fusions

Joanna Elizabeth Gernsback, MD; Tord Alden, MD (Oklahoma City, OK)

PEDIATRIC

1441. High Altitude Modulates Concussion Incidence, Severity, And Recovery In Young Athletes

Adam Li; Muhammad Ali; Theodore Hannah; Nickolas Dreher; Dhruv Shankar; Naoum Fares Marayati; Zachary Spiera; Mark Lovell, PhD; Tanvir Choudhri, MD (New York, NY)

PEDIATRIC

1442. High Dose MTX110 (Soluble Panobinostat) Safely Administered into the Fourth Ventricle in a Non-Human Primate Model

Natasha Kharas; Bangning Yu, PhD; Christopher Janssen, DVM; Amanda Trimble; Leomar Ballester, MD, PhD; Rajan Patel, MD; William Elmquist; Afroz Mohammad; Surabhi Talele; Rachael Sirianni, PhD; David Sandberg, MD (Houston, TX)

PEDIATRIC

1443. Hydrocephalus Outcomes in Zambia

Rebecca Anne Reynolds, MD; Arnold Bhebhe; Roxanna Garcia, MD; Kachinga Sichizya; Chevis Shannon (Nashville, TN)

PEDIATRIC

1444. Illustrated Dynamic Stories Behind Pediatric Neurosurgery

Voramol Rochanaroon; Danil Kozyrev, MD; Jonathan Roth, MD, PhD; Shlomi Constantini, MD, PhD (Tel Aviv-Yafo, Israel)

PEDIATRIC

1445. Independent predictors of recurrence for pediatric meningiomas, a large single-center case series

Katie Pricola Fehnel, MD; Mohammed Fouda; Edward Smith; Karen Marcus; R. Michael Scott; Katie Fehnel (Boston, MA)

PEDIATRIC

1449. Intraventricular Baclofen as Treatment for Lesch-Nyhan Dystonia: A Case Report and Review of Three Cases in the Literature

Helen J Zhang; Luke Tomycz; Catherine Christie; Tatiana Sikorskyj; Jeffrey Sica; Cameron Erdman; Catherine Mazzola (Providence, RI)

PEDIATRIC

1451. Laser Interstitial Thermal Therapy (LITT) in children

Muhammad Burhan Ud Din Janjua, MD; Tarek EL Ahmadieh, MD; Van Shen Ban, MD; Alison Dolce, MD; Angela Price, MD (Rockford, IL)

PEDIATRIC

1452. Long-Term Recurrence and Risk of Second Surgeries after Resection of Symptomatic Cavernous Malformations in Pediatric Patients

Michael Chuwei Jin; Laura Prolo, MD, PhD; Hannes Vogel, MD; Michael Edwards, MD; Gary Steinberg, MD, PhD; Gerald Grant, MD (Menlo Park, CA)

PEDIATRIC

1454. Lumbar Spondylolysis and Spondylolisthesis in Children and Young Athletes

Jake Stewart; Julian Lin, MD; Jake Stewart; Jonathon Garst, MD (Peoria, IL)

PEDIATRIC

1456. Management of Sterile Abdominal Pseudocyst Related to Ventriculoperitoneal Shunt

Rima Sestokas Rindler, MD; Andrew Erwood, MD; Mustafa Motiwala, BS; Sonia Ajmera; Brandy Vaughn, RN; Paul Klimo, MD, MPH; Joshua Chern, MD, PhD (Atlanta, GA)

PEDIATRIC

1458. Multi-Trajectory Surgical Approach Outcome In Treatment Of Pediatric Craniopharyngioma: Retrospective Cohort Study In 35 Cases

Hanan Naif AlJohani; Essam ALSHAIL (Riyadh, Saudi Arabia)

PEDIATRIC

1459. Multimodal Analgesia After Posterior Fossa Decompression With and Without Duraplasty For Children With Chiari Type I

Belinda Shao, MD; Abdul Tariq, PhD; Hannah Goldstein, MD; Nikita Alexiades, MD; Krista Mar, MS; Neil Feldstein, MD; Richard Anderson, MD; Mirna Giordano, MD (Providence, RI)

PEDIATRIC

1460. NEURO-ENDOSCOPY AS A MULTIPURPOSE TOOL IN THE MANAGEMENT OF PEDIATRIC BRAIN TUMORS

Andre Monteiro; Andre Monteiro, MD; Elena Greco; Gustavo Cortez, MD; Philipp Aldana, MD (Jacksonville, FL)

PEDIATRIC

1461. Neuroendoscopical surgical training for Assessment of a Pediatric mixed reality model

Nicollas Nunes Rabelo, MD; GISELE COELHO; Eberval Figueiredo; Nicollas Rabelo; Manoel TIEXIEIRA; Nelci Zanon (Ribeirao Preto, Brazil)

PEDIATRIC

1463. Outcomes of Awake Craniotomy in the Pediatrics Population: A Single Institutional Experience

Ahmed J. Awad, MD; Brandon Laing; Jennifer Koop; Bruce Kaufman; Irene Kim; Andrew Foy; Sean Lew (Milwaukee, WI)

PEDIATRIC

1464. Parietal Sinus Pericranii: Case Report

Thomas Bogale Megerssa, MD; Abdulaziz Hussein; Eunik Son, MD, PhD (Addis Ababa, Ethiopia)

PEDIATRIC

1465. Pediatric Foramen Magnum Meningiomas: A systematic review

Andre Monteiro; Andre Monteiro, MD; Gustavo Cortez, MD; Maick Willen Neves, MD; Telmo belsuzarri, MD; Philipp Aldana, MD (Jacksonville, FL)

PEDIATRIC

1467. Pediatric Septal Dysembryoplastic Neuroepithelial Tumor (sDNT): Current Trends

Ranbir S. Ahluwalia; Laura Hayes, MD; Lili Miles, MD; Andrea Scherer, MD (Orlando, FL)

PEDIATRIC

1468. Pediatric Vascular Malformations: A Single Center Experience

Michel Sourour, MD; Michel Sourour, MD; Mohamed Kesserwan, MD; Amanda Martyniuk; Brian Van Adel, MD, PhD; Blake Yaraskavitch, MD; Olufemi Ajani, MD; Sheila Singh, MD, PhD (Hamilton, Canada)

PEDIATRIC

1470. Percutaneous Endoscopic Resection of A Nasal Glioma: Case Report

Lei Zhao, MD; Julei Wang; Qilong Tian; Tao Huang; Jiahua Zhou; Yan Qu (Xi'an, China)

PEDIATRIC

1471. PiPeD Revascularization: A Novel Surgical Technique for Treatment of Posterior Cerebral Territory Ischemia in Pediatric Moyamoya. A Case Series with Long-term Clinical and Radiographic Follow-up

Edward Robert Smith, MD, FAANS; Alaa Montaser, MD, PhD; Jessica Driscoll; Hudson Smith; Tina Mounlavongsy; Madeline Karsten; Emily Day; Darren Orbach, MD, PhD; Edward Smith (Boston, MA)

PEDIATRIC

1472. Positional Posterior Plagiocephaly: Determining a Clinical CVAI Correlation

Ranbir S. Ahluwalia; Jarret Foster, BS; Chelsea Kiely; Madeleine Sherburn; Georgina Sellyn, MA; Chevis Shannon; Christopher Bonfield, MD (Orlando, FL)

PEDIATRIC

1473. Posterior Fossa and Spinal Malformations Result from Failure of Mesenchymal Transition in EPAS1-Gain-of-Function Syndrome

Jared Rosenblum; Anthony Cappadona, BS; Davis Argersinger, BS; Ying Png, MD, PhD; Herui Wang, PhD; James Smirniotopoulos, MD; Markku Miettinen, MD, PhD; Russell Knutsen, BA; Beth Kozel, MD, PhD; Zhengping Zhuang, MD, PhD; Karel Pacak; John Heiss, MD (Bethesda, MD)

PEDIATRIC

1475. Precocious Puberty Caused by A Large Suprasellar Glioependymal Cyst in A Child

Chin Lik Tan; Sein Lwin (Singapore, Singapore)

PEDIATRIC

1476. Predicting Determinants Of Spine Metastases At Initial Presentation Of Pediatric Brain Tumor Patients

Adrian J Rodrigues; Zachary Medress, MD; Hriday Bhambhvani, BS; Jamasb Sayadi, BS; David Hong, MD (Stanford, CA)

PEDIATRIC

1477. Predicting Perinatal Course in Patients with Antenatal Diagnosis of Central Nervous System Abnormalities

Kayla Schilling; Tristan Mackey; Sharon Keiser, MD; Christopher Troup, MD; Jennifer Hudson, MD; Jason Hill, MD; Dylan Solise, MD (Greenville, SC)

PEDIATRIC

1478. Predicting Postoperative Respiratory Failure in Children Undergoing Surgery for Posterior Fossa Tumors

Eric A. Goethe; Melissa LoPresti, MD; Nisha Gadgil, MD; Sandi Lam, MD, MBA (Seabrook, TX)

PEDIATRIC

1479. Predictors of Shunt-dependent Hydrocephalus Following Intraventricular Hemorrhage in Premature Infants; Introducing a Novel Scoring System

Mohammed Ahmed Hasen, MD; Demitre Serletis; Carling Macdonald, MD (Winnipeg, Canada)

PEDIATRIC

1482. RELA Fusion-Positive Ependymoma In A Child With Down Syndrome

Alon H. Kashanian; Julie Chan; Serguei Bannykh; Fataneh Majlessipour; Joshua Breunig; Moise Danielpour (Los Angeles, CA)

PEDIATRIC

1483. Readmission Rates After Intracranial Tumor Resection Surgery In Children

Muhammad Burhan Ud Din Janjua, MD; Sumanth Reddy, MD; William Welch, MD; Ali Ozturk, MD; Steven Hwang, MD; Amer Samdani, MD; Angela Price, MD; Bradley Weprin, MD; Dale Swift, MD (Rockford, IL)

PEDIATRIC

1487. Return of Flow in a Nonflowing Shunt using a Noninvasive Bioinspired Retrograde Flushing Device: Demonstration by Thermal Flow Detection

Elsa Arocho-Quinones, MD; Joseph Madsen, MD; Mustafa Hameed; Scellig Stone, MD, PhD, FRCSC (Boston, MA)

PEDIATRIC

1489. Seizure and Functional Outcomes following Corpus Callosotomy with Assessment of Pre-Operative Radiographic Indices

Jonathan A. Pindrik, MD, FAANS ; Hannah Johnson, MPH; Adam Ostendorf, MD; Aaron McAllister, MD; Nathan Rosenberg, MD; Jayanthi Parthasarathy; Ammar Shaikhouni, MD, PhD; Jeffrey Leonard, MD (Columbus, OH)

PEDIATRIC

1492. Split Cord Malformation Presentation, Management and Surgical Outcome

Nada Alnefaie; Ahoud Alharbi; Othman Alamer; Ibtesam Khairy, MD; Mahfood Saeed, MD; Moutasem Azzubi, MD; Sami Khairy, MD (Riyadh, Saudi Arabia)

PEDIATRIC

1494. Spontaneous Regression of a Congenital Tectal Glioma

Alejandro Feria; Philipp Aldana (Truckee, CA)

PEDIATRIC

1495. Standardizing Post-Operative Care For Intradural Chiari Decompressions To Decrease Length Of Stay

David J. Mazur-Hart, MD; David Mazur-Hart, MD; Stephen Bowden, MD; Laurie Yablon; Wendy Domreis; Erika Ohm; Christina Sayama, MD, MPH (Portland, OR)

PEDIATRIC

1496. Stereoelectroencephalography-guided Epilepsy Surgery at Boston Children’s Hospital: A Condensed Two-Stage and Two Anesthetic Workflow

Elsa Arocho-Quinones, MD; Pranav Nanda, MD; Jeffrey Bolton, MD; Chellamani Harini, MD; Mark Libenson, MD; Melissa Tsuboyama, MD; Phillip Pearl, MD; Joseph Madsen, MD; Scellig Stone, MD (Boston, MA)

PEDIATRIC

1497. Syringomyelia Resolution following Chiari Surgery: A Novel Scale for Communication and Research

Jacques Jose Lara-Reyna; Jacques Lara-Reyna, MD; John Chae, BA; Umberto Tosi, BA; Mark Souweidane, MD; Rafael Uribe-Cardenas; Jeffrey Greenfield, MD, PhD (New York, NY)

PEDIATRIC

1499. The Craniosynostosis Puzzle: New Simulation Model for Neurosurgical Training

Nicollas Nunes Rabelo, MD; GISELE COELHO; Nicollas Rabelo; Lina Adani; Dario Cecilio-Fernandes; Fabiano Carvalho; Fernando Pinto; Nelci Zanon; Manoel Teixeira; Eberval Figueiredo (Ribeirao Preto, Brazil)

PEDIATRIC

1500. The Role of Rehabilitation After Pediatric Epilepsy Surgery for Refractory Epilepsy

Eric A. Goethe; Melissa LoPresti, MD; Christian Niedzwecki, DO; Sandi Lam, MD, MBA (Seabrook, TX)

PEDIATRIC

1501. The Wandering Intraventricular Cyst Causing Hydrocephalus

Michael G. Kim, MD; Brianna Theriault, PhD; Anubhav Amin, MD; Avinash Mohan, MD; Michael Tobias, MD (Valhalla, NY)

PEDIATRIC

1502. U.S. Regional Differences in The Incidence Rates of Both Malignant and Benign Pediatric Central Nervous Tumors

Christopher R. Banerjee, MD; Dayton Grogan; Vamsi Reddy; Ian Heger (Augusta, GA)

PERIPHERAL_NERVE

1506. Changes in Resting State fMRI and Corpus Callosal Volume Following Adult Brachial Plexus Injuries

Vikram Singh; Bhagavatula Devi; Dhananjaya Bhat; Divesh Thaploo (Bengaluru, India)

PERIPHERAL_NERVE

1507. Comparative Anatomy of the Brachial Plexus: Swine vs Human

Amgad Saddik Hanna, MD, FAANS; Daniel Hellenbrand; Burak Ozaydin; Dominic Schomberg; DHANANSAYAN SHANMUGANAYAGAM (Madison, WI)

PERIPHERAL_NERVE

1508. Efficacy of supraclavicular anterior scalenotomy and brachial plexus neurolysis without ribresection for post-traumatic neurogenic thoracic outlet syndrome

Tetsuya Yoshizumi; Hiroshi Kanno; Masamichi Shinonaga (Atami city, Japan)

PERIPHERAL_NERVE

1509. Ergonomics-Based Positioning of the Operating Handle of Surgical Microscopes

Satoru Shimizu, MD (Sagamihara, Japan)

PERIPHERAL_NERVE

1511. Intraoperative Neuromonitoring Facilitates Safe Fascicle Sparing Capsular Resection of Atypical Neurofibromas in NF1

Charlie N. Nelson; Eva Dombi; Jared Rosenblum; Markku Miettinen; Tanya Lehky; Patricia Whitcomb; Christina Hayes; Gretchen Scott; Prashant Chittiboina; Sarah Benzo; Brigitte Widemann (New Albany, OH)

PERIPHERAL_NERVE

1512. Lower Cranial Nerve Syndromes: A Review

Tyler Warner; Santiago Gutierrez; Aaron Dumont; Shane Tubbs; Joe Iwanaga (Miramar, FL)

PERIPHERAL_NERVE

1513. Neurosurgical Consultation Decreases Risk of Percutaneous Biopsy for Peripheral Nerve Tumors

Courtney Pendleton, MD; Robert Spinner (Philadelphia, PA)

PERIPHERAL_NERVE

1515. The posterior tibial nerve neuropathy: Possible mechanism of traction due to the foot skeletal structures

Yasuhiro Chiba, MD; Izumi Koyanagi (Sapporo, Japan)

SOCIOECO

1520. A Comparative Assessment of Efforts for Operating Room Sustainability across Different Specialties and Opportunities for Improvement in Neurosurgery

Lily H. Kim; Ann-Christine Duhaime, MD (Mountain View, CA)

SOCIOECO

1521. A Comparison Between Objective and Publicly Rated Pediatric Neurosurgeon Online Physician Ratings

Aditya Ravindra; Julian Lin, MD; Simon Park (Peoria, IL)

SOCIOECO

1522. A Cost Utility Analysis of Treating Different Adult Spinal Deformity Frailty States

Peter Gust Passias; Avery Brown, BS; Katherine Pierce, BS; Cole Bortz, BA; Haddy Alas, BS; Brooke O'Connell, MS; Hamid Hassanzedah, MD; Lawal Labaran; Sara Naessig, BS; Themistocles Protopsaltis, MD (Brooklyn Heights, NY)

SOCIOECO

1523. A Foldoscope: Scope in Neurosurgery - A Feasibility Study

Raman Bhavana, MS MCh; T Vinay bhushanam (Visakhapatnam, India)

SOCIOECO

1524. A Global Analysis Of Scholarship Requirements During Neurosurgical Training And National Research Productivity

Michael Rallo; Omar Ashraf, BA; Fareed Jumah, MD; Gaurav Gupta, MD; Anil Nanda, MD, MPH (Chester, NY)

SOCIOECO

1525. A Novel Mobile Application To Revolutionize Preparing For The Neurosurgical Board Exams

Vamsi Reddy; Christopher Banerjee, MD, MPH; Jennifer Rosamond, BS; Nathan Todnem, MD (Augusta, GA)

SOCIOECO

1527. A Study Of Race And Socioeconomic Status Impacting Therapeutic Clinical Trial Screening And Enrollment In Adult Gliomas Patients

Ramin A. Morshed, MD; Ramin Morshed; Sheantel Reihl; Sofia Kakaizada; Annette Molinaro; Jacob Young; Jennifer Clarke; Nicholar Butowski; Jennie Taylor; Nancy Ann Bush; Mitchel Berger; Shawn Hervey-Jumper (San Francisco, CA)

SOCIOECO

1529. Access to Neurosurgery in the Era of Narrowing Insurance Networks - Results From Statewide Analysis of Marketplace Plans in Arizona, USA

Subodh Potla; Tyler Cole, MD; Luis Tumialán (Plano, TX)

SOCIOECO

1530. Adult Spinal Deformity Patients with Metabolic Syndrome Have Significantly Higher Surgery Costs

Peter Gust Passias; Peter Passias, MD; Avery Brown, BS; Katherine Pierce, BS; Cole Bortz, BA; Haddy Alas, BS; Sara Naessig, BS; Waleed Ahmad, MS; Shaleen Vira, MD; Hamid Hassanzadeh, MD; Lawal labar, MD; Michael Gerling, MD (Brooklyn Heights, NY)

SOCIOECO

1531. An Analysis of Formal Global Neurosurgery Education within North American Residency Programs

Myron Rolle, MD; Mark Zaki, BS; Connor Berger, BS; Harrison Knowlton; Vanessa Kerry; Nahed Brian (Boston, MA)

SOCIOECO

1532. An Analysis of Physician Gender within Neurosurgical Practice

Kent Richter; Jordan Pollock, BS; Jack Haglin, BS; Reed Richter, BS; Pelagia Kouloumberis, MD (Mesa, AZ)

SOCIOECO

1533. Assessing for Disparity of 90-Day Brain Tumor Resection Outcomes as Impacted by Race

Neil R. Malhotra, MD, FAANS; Debanjan Haldar, BS; Gregory Glauser, BS; Eric Winter, BS; Stephen Goodrich, BS; Kaitlyn Schultz, BS; Scott McClintock, PhD (Philadelphia, PA)

SOCIOECO

1534. Assessment of the NIH-Supported Relative Citation Ratio as a Measure of Research Productivity among 1687 Academic Neurological Surgeons

Nitin Agarwal, MD; Vamsi Reddy, BS; Arjun Gupta; Michael White, BS; Raghav Gupta, BS; Prateek Agarwal; Arpan Prabhu, MD; Yue-Fang Chang, PhD (Pittsburgh, PA)

SOCIOECO

1536. Basilar Skull Fracture Etiologies And Complications: An Epidemiological Analysis Of Socioeconomic Disparities

Ryan Chiu; Angelica Fuentes, BS; Abhishek Sethi, BS; Laura McGuire, MD; Mandana Behbahani, MD; Ankit Mehta, MD (Grayslake, IL)

SOCIOECO

1539. Cohesion Between Literature and Systemic Efforts to Address Global Neurosurgical Inequity: a Scoping Review

Edward Ham; Saksham Gupta, MD; Jeongyoon Kim; Kee Park, MD, MPH (Roslyn, NY)

SOCIOECO

1540. Comparison of Provider Initiated Patient Satisfaction Reporting with Online Reporting Websites for Neurosurgeons in the United States

Teddy Earl Kim, MD; Wesley Hsu, MD (Winston Salem, NC)

SOCIOECO

1541. Competence by Design in Canadian Neurosurgical Residency Programs: The Beginning

Magalie Cadieux; Jay Riva-Cambrin, MD; Roy Phitayakorn, MD (Calgary, Canada)

SOCIOECO

1542. Competency-Based Resident Evaluations: Neurosurgical Faculty Perspectives On Design And Feasibility

Jessica Rabski, MD; Michael Cusimano (Ottawa, Canada)

SOCIOECO

1543. Contributions to the Neurosurgery Political Action Committee (NeurosurgeryPAC): A Historical Perspective

Nitin Agarwal, MD; Prateek Agarwal; Tavis Taylor, BA; Adrienne Mortimer, BA; Jason Stacy, MD; Mark Spatola, MD; Catherine Mazzola, MD; Katie Orrico; Robert Heary, MD (Pittsburgh, PA)

SOCIOECO

1550. Differences in Cost by Geographic Region in the United States for Clipping Versus Coiling of Unruptured Aneurysms: A Nationwide Inpatient Sample Database Study

Shane Shahrestani; Xiao Chen, BA; Shane Shahrestani, MS; Alexander Ballatori, BA; Andy Ton, BS; Andrew Chan, MD; William Mack, MD; Gabriel Zada, MD, MS (Yorba Linda, CA)

SOCIOECO

1551. Disparities in Symptomatic Presentation of Moyamoya Disease in the United States: A Nationwide All-Payer Analysis.

Angie Fuentes; Ryan Chiu, BS; Ankit Mehta, MD (Chicago, IL)

SOCIOECO

1552. Disparity in Cancer Treatment: Delay in Time from Surgery to Adjuvant Radiotherapy in Incarcerated Patients

Khanh Luong; Avinash Chandran, PhD; Colette Shen, MD, PhD; Brice Kessler, MD; Carolyn Quinsey (Chapel Hill, NC)

SOCIOECO

1553. Does Comparing Physicians’ Performance to the National Average in an Academic Institution Incentivize them for Increased Productivity?

Samer Zammar, MD; Robert Harbaugh, MD; Elias Rizk, MD (Hershey, PA)

SOCIOECO

1555. Economics of the Treatment of Spinal Chordoma and Chondrosarcoma and the Feasibility of Using the Bundled Payment Model.

Zaid Aljuboori, MD; Beatrice Ugiliweneza, PhD; Norberto Andaluz, MD; Maxwell Boakye; Brian Williams, MD (Louisville, KY)

SOCIOECO

1556. Educational Program Rankings are Independently Associated with Neurosurgery Residents’ Academic Career Choice

Debraj Mukherjee, MD; Adham Khalafallah, MD; Adrian Jimenez, BS; Ali Bydon, MD; Alan Cohen, MD; Rafael Tamargo, MD; Timothy Witham, MD; Judy Huang, MD; Henry Brem, MD (Baltimore, MD)

SOCIOECO

1559. Elucidating the Opaque Costs of Aneurysmal rupture: A Pilot Cost of Illness Prospective Study

Nicki Mohamadi; Natalia Romano Spica, MS; Kurt Yaeger, MD; Deeksha Chada, MPH; Alexander Schupper, MD; Dominic Nistal, BA; Alexandra Reynolds, MD; Cappi Lay, MD; J Mocco, MD, MS; Neha Dangayach, MD; Christopher Kellner, MD (New York, NY)

SOCIOECO

1560. Evaluating NRMP Residency Program Director Surveys to Compare Neurosurgery to Other Competitive Specialties in the Match

Phillip A. Bonney, MD; Saman Sizdahkhani, MD; Alexandra Kammen, MD; Vance Fredrickson, MD; Tatsuhiro Fujii, MD; Shivani Rangwala, MD; Frank Attenello, MD (Los Angeles, CA)

SOCIOECO

1561. Evolution of the Neurosurgical Workforce in Low- and Middle Income Countries from 2016 to 2018

Ulrick Sidney Kanmounye; Kathrin Zimmerman, BSc; Jean Wilguens Lartigue; Jacquelyn Corley, MD; Kee Park, MD, MPH (Malden, MA)

SOCIOECO

1562. Factors In Residency Decision Making For Female Neurosurgery Applicants

Sarah McNutt; Madison Goss; David Hallan; Jesse Bible (Hershey, PA)

SOCIOECO

1564. Foreign Medical Graduates: An Integral Component of American Neurosurgery

Adham M. Khalafallah; Adrian Jimenez, BS; Debraj Mukherjee (Baltimore, MD)

SOCIOECO

1565. Gender Differences in Self-Perception of Surgical Competence Relative to Faculty Feedback

Alexander Daniel Suarez, MD; Theresa Williamson, MD; Andrew Cutler, MD; Charis Spears; Sarah Hodges; Lefko Charalambous; Rajeev Dharmapurikar; Shivinand Lad; Michael Haglund (Durham, NC)

SOCIOECO

1566. Gender Disparities in Academic Neurosurgery Publications: An Analysis of Two Journals Over 25 Years

Courtney Pendleton, MD; Patricia Zadnik; Steve Cho; Sonia Ajmera; Jack Jallo, MD, PhD (Philadelphia, PA)

SOCIOECO

1567. Gender Diversity in US Neurosurgery Training Programs

Katherine E. Callahan; Katelyn Donaldson, MD; Michael White; Aaron Gelinne; Jayne Manigrasso; Wyll Everett; Lola Chambless; Elizabeth Ames, MD; Susan Durham (Norwich, VT)

SOCIOECO

1568. Geographic Variability in Neurosurgeon Reimbursement for Common Neurosurgical Procedures 2000-2019

Kent Richter; Jordan Pollock, BS; Jack Haglin, BS; Jakub Godzik, MD; Naresh Patel, MD (Mesa, AZ)

SOCIOECO

1572. How Safe are Elective Craniotomies for Elderly Patients in the Modern Era of Neurosurgery? A Prospective Cohort Study of 1452 Consecutive Cases

Ralph Thomas Schar, MD; Shpend Tashi; Mattia Branca, MSc; Nicole Söll; Debora Cipriani, MD; Christa Schwarz, MD; Jürgen Beck, MD; Werner Z'Graggen, MD; Andreas Raabe, MD (Bern, Switzerland)

SOCIOECO

1574. How to Build a Customizable and Affordable Augmented Reality Platform

Rachel Elizabeth Blue, MD; Michael Spadola, MD; Vivek Buch, MD; Karthik Madhavan, MD; Anissa Saylany, BA; Nikhil Sharma, MS; Isaac Chen, MD; Michael Steinmetz, MD; Neil Malhotra, MD; Jang Yoon, MD, MSc (Philadelphia, PA)

SOCIOECO

1575. Hybrid OR: A Collaborative Multi-disciplinary Approach from Conception to Execution

JoDee Winter, PA-C MSPAS; JoDee Winter; Nora Schaefer, BSN; Lynda Christel, MBA (Cave Creek, AZ)

SOCIOECO

1576. Impact Of Master's Degree Attainment Upon Academic Career Placement In Neurosurgery

Adrian Jimenez; Adham Khalafallah, MD; Rafael Tamargo, MD; Tim Witham, MD; Judy Huang, MD; Henry Brem, MD; Debraj Mukherjee, MD, MPH (Baltimore, VA)

SOCIOECO

1577. Impact of AANS Medical Student Chapters on Participation in Organized Neurosurgery, Research Productivity, and Residency Match Success

Prateek Agarwal; Adham Khalafallah, MD; Eliza Hersh, BA; Michael Ivan, MD; Debraj Mukherjee, MD, MPH (Philadelphia, PA)

SOCIOECO

1578. Impact of Medicaid Insurance on Outcomes Following Endoscopic Transsphenoidal Pituitary Surgery

Iyan Younus; Theodore Schwartz, MD; Rohan Ramakrishna, MD (New York, NY)

SOCIOECO

1579. Impact of Multiple 'Learners' in a Neurosurgical Operating Room

Anand Indulal Rughani, MD, FAANS; Natalie Grant, BS; Jeffrey Florman, MD (Cape Elizabeth, ME)

SOCIOECO

1582. Is Patient Insurance Coverage Associated with Readmission Following Craniotomy for Benign Meningioma?

Blake Marie Hauser; Saksham Gupta, MD; Edward Xu, BA; Kyle Wu, MD; Joshua Bernstock, MD, PhD; Ayaz Khawaja, MD; Regan Bergmark, MD; Wenya Bi, MD, PhD (Boston, MA)

SOCIOECO

1583. Locum Tenens Neurosurgery: A Nationwide All-Payer Appraisal Of Patient Outcomes, Complications And Cost of Care

Ryan Chiu; Syed Khalid, MD; Ravi Nunna, MD; Neha Siddiqui, MS; Ankit Mehta (Grayslake, IL)

SOCIOECO

1585. Mindfulness and Neurosurgery

Brian Saway; Francis Dane, PhD; Laurie Seidel; Gary Simonds, MD; Terri-Ann Wattsman, MD (Roanoke, VA)

SOCIOECO

1587. Novel Technique for Repair of Large and Persistent Anterior Skull Base Defect

Mohammad Kaif; Mazhar Husain; Deepak Singh; Kuldeep Yadav; Rakesh Singh (Lucknow, India)

SOCIOECO

1589. Perceptions of Artificial Intelligence in Neurosurgery: A Cross-Sectional Survey of Patients and their Relatives.

Paolo Palmisciano; Aimun Jamjoom; Danail Stoyanov, PhD; Daniel Taylor; Hani Marcus (Caltagirone, Italy)

SOCIOECO

1590. Perspectives On Ethical Concerns Surrounding AI And Healthcare

Ami Baba; Melissa McCradden, PhD; Ashirbani Saha; Sidra Ahmad; Kanwar Boparai; Pantea Fadaiefard; Michael Cusimano (Toronto, Canada)

SOCIOECO

1591. Political Contributions of Self Identifying Neurological Surgeons Within the United States From 2003-2018

Kent Richter; Jordan Pollock, BS; Jack Haglin, BS; Reed Richter, BS; Fredric Meyer, MD; H Batjer, MD; Regis Haid, MD; Bernard Bendok, MD (Mesa, AZ)

SOCIOECO

1595. Predictors Of Google Search Rankings For Spine Surgeons: An Analysis Of Academic Pedigree, Social Media Presence And Patient Ratings

Ryan Chiu; Rown Parola, MS; Ankita Nallani, BS; Georgia Glastris, MS; Neha Siddiqui, MS; Abdullah Bheri, BS; Miloni Shah; Mandana Behbahani, MD; Ankit Mehta (Grayslake, IL)

SOCIOECO

1598. Regional Cost Differences Associated with Microscopic Resection of Supratentorial Intraparenchymal Malignant Neoplasms

Shane Shahrestani; Andy Ton, BS; Shane Shahrestani, MS; Alexander Ballatori, BA; Xiao Chen, BA; Andrew Chan, MD; Gabriel Zada, MD, MS (Yorba Linda, CA)

SOCIOECO

1600. Socio-Economic Status Impact on Long-term Mortality after Aneurysmal Subarachnoid Hemorrhage

Santiago Rene Unda; Kevin Labagnara; Jessie Birnbaum; Megan Wong; David Altschul, MD (New York, NY)

SOCIOECO

1601. Socioeconomic Factors Influencing 30-Day and 90-Day Readmission Among Patients Undergoing Anterior Cervical Discectomy and Fusion: An Analysis Using the Nationwide Readmissions Database

Rosemary Behmer Hansen; Blake Taylor, MD; Patrick Hilden; John Gillick (Jersey City, NJ)

SOCIOECO

1603. Systematic Review of Cost-Effectiveness Analyses in US Spine Literature

Diana Chang; Corinna Zygourakis, MD; Harsh Wadhwa; James Kahn, MD (San Marino, CA)

SOCIOECO

1604. Telemedicine Use in Neurosurgery Patients

Christian G. Zimmerman, MD, FAANS, FACS; Mackenzie Malach, BS; Ariana Garabedian, BS (Boise, ID)

SOCIOECO

1607. The Effect of Gender Diversity in US Neurosurgery Training Programs on Resident Attrition Rates

Katherine E. Callahan; Katherine Callahan, BA; Michael White, MD; Katelyn Donaldson, MD; Lola Chambless, MD; Susan Durham (Norwich, VT)

SOCIOECO

1609. The Impact of African-trained Neurosurgeons on Sub-Saharan Africa.

Claire Karekezi, MD; Isabelle Germano; Abdeslam El Khamlichi, MD; Abdessamad El Ouahabi, MD; Najia El Abbadi, MD; Franco Servadei (Kicukiro District, Rwanda)

SOCIOECO

1610. The Impact of Race on Short-Term Pituitary Tumor Resection Outcomes

Neil R. Malhotra, MD, FAANS; Debanjan Haldar, BS; Gregory Glauser, BS; Eric Winter, BS; Ryan Dimentberg, BS; Jang Yoon, MD, MSc; Stephen Goodrich, BS; Kaitlyn Schultz, BS; Scott McClintock, PhD; M. Sean Grady, MD (Philadelphia, PA)

SOCIOECO

1614. Theoretical Underpinnings And Shortcomings Of Competence By Design Neurosurgical Education

Jessica Rabski, MD; Michael Cusimano (Ottawa, Canada)

SOCIOECO

1617. Transport of Patients with Complex Neurosurgical Disorders to the US for Collaborative Multidisciplinary Treatment

Eric S. Nussbaum, MD, FAANS, FACS; patrick graupman; martin lacey; andrew harrison; penelope nussbaum; jodi lowary; leslie nussbaum (Minneapolis, MN)

SOCIOECO

1618. Trends In Medicare Procedure Utilization Within Neurosurgery 2010-2018

Jordan R Pollock; Jack Haglin, BS; Kent Richter, BS; Jakub Godzik, MD; Naresh Patel, MD (Scottsdale, AZ)

SOCIOECO

1619. Trends In Socioeconomic Publications For Spinal Fusion: A Systematic Literature Review

Andrew J. Caras; Oluwasegun Emenogu, BS; Azedine Medhkour, MD (Toledo, OH)

SOCIOECO

1620. Trends In​ ​Neurological Surgery Practice Size From 2014-2019

Rohin Singh; Jordan Pollock, BS; Kent Richter, BS; Jack Haglin; Naresh Patel (Phoenix, AZ)

SOCIOECO

1621. Trends in Neurosurgery Residency Applicant Data from National Resident Matching Program Reports

Phillip A. Bonney, MD; Tatsuhiro Fujii, MD; Alexandra Kammen, MD; Saman Sizdahkhani, MD; Vance Fredrickson, MD; Shivani Rangwala, MD; Frank Attenello, MD (Los Angeles, CA)

SOCIOECO

1622. Trends in US Neurosurgery Residency Education and Training Over the 2009-2019 Decade

Kurt Yaeger, MD; Stephan Munich, MD; Richard Byrne, MD; Isabelle Germano, MD, MBA (New York, NY)

SOCIOECO

1627. Video Recording of Clinical Visits Improves the Patient Experience and HCAHPS Scores

Malika Bhargava; Komal Naeem, MD; Randall Porter, MD (Scottsdale, AZ)

SOCIOECO

1628. Virtual Reality In Neurosurgical Education: Modernizing The Medical Classroom

Karam Atli; Warren Selman, MD; Abhishek Ray, MD (Cleveland, OH)

SPINE

1629. 12-Month Interim Clinical Outcomes Following Cervical Fusion With ViBone® Viable Bone Matrix: ViBone In Cervical & Lumbar Spine Fusion Study

Paul D Kim; Ramin Raiszadeh, MD (San Diego, CA)

SPINE

1630. 3D-Printed Anatomical Modeling for Surgical Planning, Real-time Operative Guidance, and Patient Education in Complex Primary Spine Tumors

Owen Leary; Joseph Crozier, MA; David Liu; Tianyi Niu, MD; Joaquin Camara-Quintana, MD; Konstantina Svokos; Adetokunbo Oyelese; Albert Woo, MD; Ziya Gokaslan; Jared Fridley, MD (Providence, RI)

SPINE

1635. A Computational Model Analyzing Morphology of Sub-Axial Cervical Vertebrae for Pedicle Screw Placement

Andre Wakim; Udaya Kakarla, MD; Jay Turner, MD, PhD; Michael Bohl, MD (Phoenix, AZ)

SPINE

1638. A Multidisciplinary Spine Surgical Indications Conference Leads to Alterations in Surgical Plans in a Significant Number of Cases

Joshua Benton; Rafael De la Garza Ramos, MD; Yaroslav Gelfand, MD; Phillip Cezayirli, MD; Murray Echt, MD; Reza Yassari, MD; Vijay Yanamadala, MD (Bronx, NY)

SPINE

1641. A Predictive Model of Perioperative Myocardial Infarction in Spine Surgery

Peter Gust Passias; Katherine Pierce; Cheongeun Oh, PhD; Haddy Alas, BS; Cole Bortz, BA; Avery Brown, BS; Waleed Ahmad, MS; Sara Naessig, BS; Erik Wang, BS; Shaleen Vira, MD; M. Burhan Janjua, MD; Bassel Diebo, MD (Brooklyn Heights, NY)

SPINE

1643. A Rare Case of Contemporaneous Clival and Bilateral Occipital Condyle Avulsion Fractures Associated with Focal Tectorial Membrane Disruption.

Zaid Aljuboori, MD; Norberto Andaluz, MD (Louisville, KY)

SPINE

1644. A Rare Case of Intramedullary Spinal Cord Metastasis from Rectal Cancer Causing Conus Medullaris Syndrome

Chin Lik Tan; Walter Chou; Nagarjun Bolem; Ning Chou; Kejia Teo (Singapore, Singapore)

SPINE

1647. A Retrospective Study Analyzing The Association Between The L3-4 Disc And Spinopelvic Parameters, Quality Of Life, And Postoperative Adverse Events

Mark Maher Kodsy; Harvey Freitag, BS; Robert Winkelman, BS; Iain Kalfas, MD; Edward Benzel, MD; Douglas Orr, MD; Jason Savage, MD; Bryan Lee, MD; Ryan Honomichl, PhD; Nic Thompson, MS (Westlake, OH)

SPINE

1649. A Solitary Osteochondroma of the Cervical Spine Presenting with Quadriparesis and Hand Contracture

Camille K Milton; Kyle O'Connor, BS; Adam Smitherman, MD; Andrew Conner, MD; Michael Martin, MD (OKC, OK)

SPINE

1650. A Survey Of Vitamin D Status In Patients With Herniated Lumbar Discs

Rabail Akbar Qazi, MBBS; Dr. Asad Abbas; Farrukh Javeed; Raza Rizvi; Lal Rehman; Ali Afzal (Karachi, Pakistan)

SPINE

1653. A novel double tubular minimally invasive spine technique increases the surgical visual field and facilitates better maneuverability during resection of intradural pathologies.

Ioannis Vasilikos; Roland Roelz; Christoph Scholz; Jan-Helge Klingler; Ulrich Hubbe (Baden Wuerttemberg, Germany)

SPINE

1655. A systematic review on the clinico-radiological features and surgical outcome of tuberculous spondylolisthesis

Lekshmi Peringassery Sateesh; Vinayak Narayan, MD; Anil Nanda (Columbus, OH)

SPINE

1659. Acute Colonic Pseudo-Obstruction After Posterior Spinal Fusion: A Case Report And Literature Review

M. Usman Ahmad; Keyan Riley, MD; Thomas Ridder, MD (Denver, CO)

SPINE

1661. Adjustable Lordotic Expandable Technology Improves Clinical Outcomes: Minimally Invasive Lateral Lumbar Interbody Fusion for DDD

Yan Michael Li, MD, PhD; Zheng Huang, MD, PhD; James Towner, MD; Yan Li, PhD; Jessica Riggleman, BS; Charles Ledonio (Pittsford, NY)

SPINE

1662. Adult Onset Tethered Cord Syndrome: Spinal Pathology, Clinical And Histological Characteristics And Post-Operative Outcomes

Matthew Hagan; Owen Leary; Abigail McElroy; David Liu; Jared Fridley, MD; Albert Telfeian, MD, PhD; Alexios Carayannopoulos; John Donahue, MD; Ziya Gokaslan; Adetokunbo Oyelese; Petra Klinge (Providence, RI)

SPINE

1663. Adverse events after surgical treatment of Chiari malformation type I

Izumi Koyanagi, MD, IFAANS; Yasuhiro Chiba, MD; Hiroyuki Imamura, MD; Masami Yoshino, MD; Hiroshi Abe, MD (Nishi-ku/Sapporo, Japan)

SPINE

1665. Age, BMI, and Osteoarthritis are Predictors of Higher Total Costs in Spine Fusion Surgery at 2 Years

Peter Gust Passias; Peter Passias, MD; Avery Brown, BS; Haddy Alas, BS; Cole Bortz, BA; Katherine Pierce, BS; Sara Naessig, BS; Waleed Ahmad, MS; Aaron Buckland; Shaleen Vira, MD; Burhan Janjua, MD; Michael Gerling, MD (Brooklyn Heights, NY)

SPINE

1667. Analysis Of Outcomes After Minimally Invasive Posterior Cervical Foraminotomy: A Systematic Review Of Comparative Studies

Andrew Platt, MD; John O'Toole, MD (Chicago, IL)

SPINE

1668. Analyzing The Correlation Between Surgeon Experience And Patient Length Of Stay

Alan T. Villavicencio, MD, FAANS; Sharad Rajpal, MD; Mancy Shah, BA; Niketna Vivek; Sigita Burneikiene, MS (Boulder, CO)

SPINE

1669. Angiotensin-II Receptor Blockers Were Associated With Lower T2W Signal Intensity Change In Cervical Spondylotic Myelopathy: Is There A Role Of The Renin-Angiotensin System In Chronic Spinal Cord Compression?

Alexander Perdomo-Pantoja, MD; Alejandro Chara, BS; Joshua Casaos, MD; Samuel Kalb, MD; Corinna Zygourakis, MD; Ali Ahmed, BS; Zachary Pennington, BS; Ethan Cottrill, MS; Sohan Shah, BS; Amir Manbachi, PhD; Timothy Witham, MD; Nicholas Theodore, MD (Baltimore, MD)

SPINE

1671. Anterior Cervical Discectomy and Fusion Versus Cervical Disc Arthroplasty: A Comparison of National Trends and Outcomes

James Ryoo; Abhinav Reddy, MS; Philip Ostrov, MS; Ankit Mehta, MD (Chicago, IL)

SPINE

1672. Anterior Discectomy and Fusion (ACDF): Does the Teaching Status of the Hospital Matter?

Mohamad Bydon, MD, FAANS ; Aya Akhras; Waseem Wahood, MS; Mohammed Alvi, MBBS; Anshit Goyal, MBBS; Yagiz Yolcu, MD (Rochester, MN)

SPINE

1676. Aortic Puncture During Lumboperitoneal Shunt Placement

Nazih Moufarrij, MD, FAANS (Wichita, KS)

SPINE

1678. Appropriate Risk Stratification and Accounting for Age-Adjusted Reciprocal Changes in the Thoracolumbar Spine Reduces the Incidence and Magnitude of Distal Junctional Kyphosis in Cervical Deformity Surgery

Peter Gust Passias; Peter Passias, MD; Cole Bortz, BA; Katherin Pierce, BS; Renaud Lafage, MS; Virginie Lafage, PhD; Christopher Ames, MD; Douglas Burton, MD; Shay Bess; Justin Smith, MD, PhD; Frank Schwab, MD; International Spine Study Group (Brooklyn Heights, NY)

SPINE

1679. Arthritis Is Not A Peri-Operative Risk Factor For Construct Failure Or Need For Revision In Patients Undergoing Spinal Fusion

Luke Alan Mugge, MD; Luke Mugge, MD; Danielle Dang, MD; John Dang, MD; Andrew Fanous, MD (Falls Church, VA)

SPINE

1680. Aspiration: An Underdiagnosed Complication After Cervical Spine Injury

Anand Patel; Anand Patel, MS; Suchi Amin, BS; Purvi Patel, MD; Michael Anstadt, MD; Vikram Prabhu, MD; Suguna Pappu, MD, PhD (Maywood, IL)

SPINE

1687. BMI as Predictor for 30-day and 90-day Readmission for all Causes After Posterior Cervical Decompression and Fusion Surgery

Joshua Benton; Yaroslav Gelfand, MD; Rafael De la Garza Ramos, MD; Phillip Cezayirli, MD; Murray Echt, MD; Vijay Yanamadala, MD; Reza Yassari, MD (Bronx, NY)

SPINE

1688. Bacillus Cereus Implicated in Discitis

Ahmed Mohammed Alnemari, MD, MPH; Ahmed Alnemari, MD, MPH; Anahita Malvea; Kaitlyn Orton, BS; Abdulhakeem Alghamdi, MD; Stephanie Stephanie; Adam Sachs (Ottawa, Canada)

SPINE

1689. Bauer and Spinal Instability Neoplastic Scores as Predictors of Blood Transfusion After Metastatic Spinal Tumor Surgery

Joshua Benton; Rafael De la Garza Ramos, MD; Yaroslav Gelfand, MD; Phillip Cezayirli, MD; Murray Echt, MD; Vijay Yanamadala, MD; Reza Yassari, MD (Bronx, NY)

SPINE

1695. Both Mild and Severe Obesity Reduce the Effectiveness of Elective Lumbar Fusion Surgery: Analysis of One Year Patient-Reported Outcomes in 8,171 Patients.

Graham Garfield Mulvaney, MD; Matthew McGirt, MD; Vincent Rossi, MD; David Peters, MD; Olivia Rice, MD; Joshua Patt, MD, MPH; Deborah Pfortmiller, PhD; Anthony Asher (Charlotte, NC)

SPINE

1697. C5 Palsy after Cervical Laminectomy: Natural History and Risk Factors in a 10 Year Series

Ryan Christopher Hofler, MD; Joseph Frazzetta; Jehad Zakaria, MD; Amany Aziz, MD; Russ Nockels, MD; William Adams; George Jones, MD (Maywood, IL)

SPINE

1700. Cadaveric Study of Safe entry Zones to lumbar disc through Transpsoas Approach

Ahmed Elrahmany, MD; Ahmed Elrahmany; Ehab Zidane; Mohamed Agamy; Melad Bushra Eskander (Egypt, )

SPINE

1704. Cephalad Migration of Intradural Bullet from Thoracic Spine to Cervical Spine.

Christopher R. Banerjee, MD; Nathan Todnem; Trevor Hardigan; Cargill Alleyne (Augusta, GA)

SPINE

1705. Cerebral Beak Angle Changes after Decompression

Anshul Ratnaparkhi; Joel Beckett, MD; Azim Laiwalla, MD; Ulrich Batzdorf, MD (San Jose, CA)

SPINE

1707. Cervical Deformity Patients with Baseline Hyperkyphosis and Hyperlordosis Differ in Surgical Treatment and Radiographic Outcomes

Peter Gust Passias; Haddy Alas, BS; Katherine Pierce; Waleed Ahmad; Sara Naessig; Shaleen Vira, MD; Renaud Lafage, MS; Christopher Ames, MD; Eric Klineberg; Shay Bess; Justin Smith; International Spine Study Group (Brooklyn Heights, NY)

SPINE

1708. Cervical Disc Arthroplasty Is Associated With Fewer Adjacent Segment Surgeries and Index-Level Reoperations Than Anterior Cervical Discectomy And Fusion: Systematic Review And Meta-Analysis Of Randomized Controlled Trials With Long-term Follow-up

Andrew Platt, MD; Jetan Badhiwala; Christopher Witiw; Vincent Traynelis (Chicago, IL)

SPINE

1709. Cervical Disc Arthroplasty Vs. Anterior Cervical Discectomy and Fusion: An analysis from the Quality Outcomes Database (QOD)

Inamullah Khan; Kristin R. Archer; Jacquelyn Pennings; Ahilan Sivaganesan, MD; Mohamad Bydon, MD; Anthony L. Asher, MD; Clinton J. Devin, MD (Nashville, TN)

SPINE

1710. Cervical Spinal Stenosis in Octogenarians: Impact of the Degree of Stenosis and Symptoms on Patient Management

Mohamad Bydon, MD, FAANS ; Yagiz Yolcu, MD; Jad Zreik, BS; Mohammed Alvi, MBBS; Anshit Goyal, MBBS (Rochester, MN)

SPINE

1714. Characterizing the Rates and Causes of Spinal Cord Compression in Patients with Known Spinal Metastases in an Underserved Population

Joshua Benton; Rafael De la Garza Ramos, MD; Yaroslav Gelfand; Phillip Cezayirli, MD; Murray Echt, MD; Reza Yassari, MD; Vijay Yanamadala (Bronx, NY)

SPINE

1715. Chiari Malformation with Spinal Pathology: Reoperation Rates Following Surgical Decompression Versus Fusion

Peter Gust Passias; Haddy Alas; Katherine Pierce; Avery Brown; Cole Bortz; Waleed Ahmad; Sara Naessig; Shaleen Vira; Muhammad Burhan Janjua; D Kojo Hamilton; Danial Sciubba (Brooklyn Heights, NY)

SPINE

1718. Clinical and Radiological Outcomes of Trans-Kambin Posterior Oblique Lateral Lumbar Interbody Fusion

Hamid R. Abbasi, MD, PhD, FAANS; Hamid Abbasi (Alexandria, MN)

SPINE

1721. Comparative Outcomes in Normal/Overweight and Obese Populations Undergoing Single-Level Lumbar Interbody Fusion

Yi Lu, MD, PhD FAANS; John Chi, MD; Martin Krag, MD; Mohamad Bydon, MD; Pierce Nunley, MD; Staphane Lavoie, MD; Marcus Stone, PhD (Boston, MA)

SPINE

1723. Comparing the Effects of Arterial Line and Non-Invasive Blood Pressure Monitoring on Cervical Spinal Myelopathy Outcomes in Patients Undergoing Posterior Cervical Decompression and Fusion

Isaac Bing-Yi Ng, MS; Richard Dowd, MD, MS; Daniel Herrick, MD, PhD; Shane Burke, MD, MBA; Tej Ganti; Emily Anderson; Marie Roguski, MD, MPH; Jeffrey Florman, MD; Ron Riesenburger, MD (Boston, MA)

SPINE

1724. Comparing the Surgical Outcomes of Dynamic Cervical Implants (DCI) vs Total Disc Replacement (TDR) and Anterior Cervical Discectomy and Fusion (ACDF): A Systematic Review and Meta-Analysis

Mohamad Bydon, MD, FAANS ; Aya Akhras; Waseem Wahood, MS; Mohammed Alvi, MBBS; Anshit Goyal, MBBS; Atiq Bhatti, MD (Rochester, MN)

SPINE

1725. Comparison Of Clinical Results Between Spinal Fixation And Distraction Versus Spinal Decompression And Fixation In Incomplete Neurological Deficit: A Randomized Prospective Study

Sarvdeep Dhatt (Chnadigarh, India)

SPINE

1727. Comparison of Combined versus Staged Anterior and Posterior Cervical Decompression, Stabilization and Fusion

Khashayar Mozaffari; Michael Stellon; Andrew Sparks; Eric Chalif; Kenan Rajjoub; Danielle Putur; Michael Rosner (Washington, DC)

SPINE

1729. Comparison of Outcomes After Spinal Fusion Using Autograft Versus Allograft

Michael Mancini; Aris Yannopoulos, MD; Michael Cremins; Smitha Vellanky, MSc; Grace McCann, BA (Rocky Hill, CT)

SPINE

1730. Comparison of Rod Types Used in Spinal Surgery: A Systematic Review and Meta-Analysis

Jennifer Z. Mao, MBA; Alexander Fritz, BS; Timothy O'Connor, MD; Asham Khan, MD; Justice Agyei, MD; Elena Pezzino, BS; John Pollina, MD; Jeffrey Mullin (Buffalo, NY)

SPINE

1731. Comparison of Segmental Lordosis Gain with standard LLIF or PTP.

Luiz Pimenta; Rodrigo Amaral; Willian Taylor; Antoine Tomeh; Raquel Rodrigues; Daniel Arnoni (São Paulo, Brazil)

SPINE

1737. Conservative Treatment in Patients with Thoracolumbar Injury Classification Score (TLICS) of >4

Gabriel Stefano Gonzales-Portillo; Travis Dumont, MD (Tucson, AZ)

SPINE

1739. Coronal Cobb Angle Correction With Pre-psoas (Oblique) And Lateral Lumbar Interbody Fusion In Adult Scoliosis Patients

Jeremy Michal Vincent Guinn; Zhuo Xi, MD; Shane Burch, MD; Praveen Mummaneni, MD; Sigurd Berven, MD; Vedat Deviren, MD; Dean Chou, MD (Nashville, TN)

SPINE

1742. Correlation between Lumbosacral Transitional Anatomy and Pars Defect

Gabriel Stefano Gonzales-Portillo; Travis Dumont, MD (Tucson, AZ)

SPINE

1743. Correlation of Return to Work with Patient Satisfaction After Surgery for Lumbar Spondylolisthesis: An Analysis of the Quality Outcomes Database

Anthony M. DiGiorgio, DO, MHA; Paul Park MD, Andrew K. Chan MD, Praveen V. Mummaneni MD, Erica F. Bisson MD, MPH, Mohamad Bydon MD, Kevin T. Foley MD, Steven D. Glassman MD, Christopher I. Shaffrey MD, Eric A. Potts MD, Mark E. Shaffrey MD, Domagoj Coric MD, John J. Knightly MD, Michael Y. Wang MD, Kai-Ming Fu MD, PhD, Anthony L. Asher MD, Michael S. Virk MD, PhD, Panagiotis Kerezoudis MD, MS, Mohammed A. Alvi MBBS, Jian Guan MD, Regis W. Haid MD, Jonathan R. Slotkin MD (San Francisco, CA)

SPINE

1744. Correlation of Validated Frailty Instruments With and Without Cognitive Metrics in a General Neurosurgery Population

Samuel Bruce; Michael Argenziano; Claire Donnelley; Brett Youngerman, MD, MS; Patrick Reid, MD, MS (New York, NY)

SPINE

1745. Cost Analysis of Spinal Laser Interstitial Thermotherapy to Open Surgery for Metastatic Thoracic Epidural Spinal Cord Compression

Dhiego Bastos, MD; Jaime Quirarte, BS; Marilou Oro; Behrang Amini, MD; Ganesh Rao; Rhines Larry, MD; Claudio Tatsui (Campinas, Brazil)

SPINE

1748. Current Landscape of Adult Idiopathic Scoliosis A Systematic Review and Meta-Analysis of Characterization, Management, and Outcomes

Jennifer Z. Mao, MBA; Alex Hollenberg, BS; Patrick Laird, BA; Megan Johnson, BS; Nicholas Imperato, BS; Ryan Hess, MD; Asham Khan, MD; Tim O'Connor, MD; Justice Agyei, MD; John Pollina, MD; Alex Vaccaro; Jeffrey Mullin, MD (Buffalo, NY)

SPINE

1749. Custom 3D-Printed Assistive Devices Improve Functional Independence in Cervical Spinal Cord Injury

Shovan Bhatia; Sebastian Gallo; Iahn Cajigas, MD, PhD; Jonathan Jagid, MD; Abhishek Prasad, PhD (Coral Gables, FL)

SPINE

1754. Decompression Surgery versus Interspinous Devices for Lumbar Spinal Stenosis

Martin Huy Pham, MD; Jennifer Tram, BS; Shanmukha Srinivas, BS; Arvin Wali, MD; Courtney Lewis, BS (La Jolla, CA)

SPINE

1757. Depiction of Presenting Comorbidity Profiles in Adolescent Idiopathic Scoliosis Patients with and without Syringomyelia Using Cluster Analytics

Peter Gust Passias; Katherine Pierce, BS; Avery Brown, BS; Cole Bortz, BA; Haddy Alas, BS; Sara Naessig, BS; Jordan Manning, BA; Daniel Sciubba, MD; Shaleen Vira, MD; Michael Gerling, MD; Peter Passias, MD; Burhan Janjua, MD (Brooklyn Heights, NY)

SPINE

1759. Determining the difference in clinical and radiological outcomes between expandable and non- expandable cages in the cervical fusion procedures: A Systematic Review and Meta-Analysis

Mohamad Bydon, MD, FAANS ; Ronan Doherty; Yagiz Yolcu, MD; Anshit Goyal, MBBS; Mohammed Alvi, MBBS (Rochester, MN)

SPINE

1763. Do PEEK Rods for Posterior Instrumented Fusion in the Lumbar Spine Reduce the Risk of Adjacent Segment Disease?

Daniel Hirt, MD; Heather Prentice, PhD; Devon Khosla, MD; Jessica Harris, MS; Elizabeth Paxton, PhD; Daniel Nagasawa, MD; Steven Kurtz, PhD (Los Angeles, CA)

SPINE

1764. Does BMI Over 40 Have a Significant Risk in Spine Deformity Patients?

Yaroslav Gelfand, MD; Rafael De la Garza, MD; Mousa Hamad, MD; Vijay Yanamadala, MD, MBA; Reza Yassari, MD, MS (Bronx, NY)

SPINE

1766. Does Meyerding Slippage Reduction In Spondylolisthesis Correlate With Patient Outcomes?

Rory Mayer, MD; Praveen V. Mummaneni MD, Andrew K. Chan MD, Erica F. Bisson MD, MPH, Joshua Rivera BS, Brenton Pennicooke MD, Kai-Ming Fu MD, PhD, Paul Park MD, Mohamad Bydon MD, Steven D. Glassman MD, Kevin T. Foley MD, Christopher I. Shaffrey MD, Eric A. Potts MD, Mark E. Shaffrey MD, Domagoj Coric MD, John J. Knightly MD, Michael Y. Wang MD, Jonathan R. Slotkin MD, Anthony L. Asher MD, Regis W. Haid MD, Dean Chou MD (San Francisco, CA)

SPINE

1767. Does Outcome Differ Between Cervical And Lumbar Spinal Procedures Among Patients With Opioid Use Disorder? Analysis Of The National Inpatient Sample

Andrew J. Caras; William Miller, MS; Jason Schroeder, MD; Azedine Medhkour, MD (Toledo, OH)

SPINE

1768. Does Paraspinal Trunk Flap At The Time Of Spinal Surgery Improve Post-operative Outcomes In Patients With Disseminated Cancer?

Meghan Price; Elizabeth Howell, BS; Vikram Mehta, MD, MPH; Rose Tillis, MD; Luis Ramirez; George Bukenya; Jessica Goodwin; Christine Park; Muhammad Abd-el-Barr, MD, PhD; Isaac Karikari, MD; David Brown, MD, PhD; Rory Goodwin, MD, PhD (Durham, NC)

SPINE

1770. Does indirect decompression after LLIFalways work?

Luiz Pimenta; Rodrigo Amaral; Raquel Rodrigues; Gabriel Pokorny; Thyago Guirelle (São Paulo, Brazil)

SPINE

1771. Dorsal Migration of Lumbar Disc Fragment as a Cause of Cauda Equina Syndrome

Shawn Rai, MD; Carlos Goulart, MD; Michael Galgano, MD; Satish Krishnamurthy, MD (Syracuse, NY)

SPINE

1772. Double Cervical Expandable Cage Reconstruction After Nerve Root Sparing Thoracic Vertebral Column Resection: A Feasible Biomechanical Alternative in Severe Vertebral Body Height Collapse.

Carlos Goulart, MD; Shawn Rai, MD; Michael Galgano, MD (Syracuse, NY)

SPINE

1776. Early 3-Month Cervical Outcomes of the Fortilink TETRAfuse Interbody Fusion Device In Subjects With Degenerative Disc Disease Study – The FORTE Study

K. Brandon Strenge; Clint Hill, MD (Paducah, KY)

SPINE

1781. Economic Performance of Trans-Kambin Posterior Oblique Lateral Lumbar Interbody Fusion (OLLIF) with a Focus on Hospital Throughput Efficiency

Hamid R. Abbasi, MD, PhD, FAANS; Hamid Abbasi (Alexandria, MN)

SPINE

1783. Effect Of MRI On Surgical Approach And Outcomes In The Management of Subaxial Cervical Fractures

Ryan Chiu; Neha Siddiqui, MS; Clayton Rosinski, BS; Ankita Nallani, BS; Mandana Behbahani, MD; Ankit Mehta (Grayslake, IL)

SPINE

1784. Effect of Body Mass Index on Perioperative Outcomes in Minimally Invasive Trans-Kambin Posterior Oblique Lateral Lumbar Interbody Fusion versus Open Fusions: A Multivariant Analysis

Hamid R. Abbasi, MD, PhD, FAANS; Hamid Abbasi (Alexandria, MN)

SPINE

1785. Effect of Cage Type on Radiographic Outcomes in TLIF

Yaroslav Gelfand, MD; Joshua Benton, BA; Rafael De la Garza, MD; Vijay Yanamadala, MD; Reza Yassari, MD, MS; Merritt Kinon, MD (Bronx, NY)

SPINE

1786. Effect of Implant Profile on the Biomechanical Stability of Sacroiliac Joint Fusion Construct

samuel fang; Samuel Fang, PhD (lewisville, TX)

SPINE

1787. Effect of Scan Type, Timespan, and BMI on Chiari I Malformation Tonsil Ectopia Length

Leah Beth Eisenberg; Alan Eisenberg, MD; Kenan Arnautovic, MD (Memphis, TN)

SPINE

1788. Effect of Single-Level Anterior Cervical Discectomy and Fusion on Adjacent Segments in Cervical Degenerative Disease: A Retrospective Cohort Study

Johan Heemskerk; Carlos Perez-Vega, MD; Kent Richter; Reed Richter; William Clifton; Alfredo Quinones-Hinojosa, MD; Matthew Neal, MD; Kingsley Abode-Iyamah, MD (Jacksonville beach, FL)

SPINE

1790. Effectiveness of Tranexamic Acid in Spinal Deformity Surgery: A Consecutive Series of 119 Primary Operations

Mark (Nick) Pernik; Mark Pernik, BA; Luke Dosselman, BS; Salah Aoun, MD; Adrienne Walker, BS; Kristen Hall, BS; David McDonagh, MD; Carlos Bagley, MD, MBA (Dallas, TX)

SPINE

1791. Effects of Smoking on Pedicle Screw-based Dynamic Stabilization: Radiological and Clinical Evaluations of Screw Loosening in 306 patients

Yi-Hsuan Kuo, MD; Wen-Cheng Huang; Jau-Ching Wu (Taipei, Taiwan)

SPINE

1792. Effects of Transcutaneous Spinal Stimulation on Heart Rate Measures and Variance

Amir Ali; Gerome Manson, PhD; Rachel Markley, MS; Dimitry Sayenko, MD, PhD (Galveston, TX)

SPINE

1793. Efficacy and Safety of IV TXA in Reducing Transfusions and Blood Loss in Thoracolumbar Fusion

Benjamin G. McGahan, MD; Alexandre Todeschini; Alberto Uribe; Marco Echeverria-Villalobos; Juan Fiorda-Diaz; Mahmoud Abdel-Rasoul; Asad Akhter; Liesl Close; Ben McGahan; Andrew Grossbach; Stephanus Viljoen; Sergio Bergese (Columbus, OH)

SPINE

1794. Efficacy of Posterior Vertebrectomy with Short Segment Instrumentation in Treatment of Thoracic Spinal Metastasis

Aimen Vanood; Andrew Ragheb; Daniel Fahim, MD (Lake Orion, MI)

SPINE

1798. En-Bloc Resection of Thoracic Osteoblastoma

Shawn Rai, MD; Carlos Goulart, MD; Michael Galgano, MD (Syracuse, NY)

SPINE

1801. Engineering Microenvironments of Mesenchymal Stem Cells for Nucleus Pulposus Regeneration in a Degenerative Disc Disease Model

Mick J. Perez-Cruet, MD, FAANS; Lee Onn Chieng; Christina Mckee; Naimisha Beeravolu; Christina Brown; Rasul Chaudhry (Royal Oak, MI)

SPINE

1802. Enhanced Recovery After Surgery (ERAS) Implementation At A Sister Institution: Results And Challeges Expanding Across A Health System

Joseph Ifrach; Disha Joshi, BS; Nikhil Sharma, MS; James Schuster, MD, PhD; H. Chen, MD; Dmitriy Petrov, MD; Arianna Unger; Ali Ozturk, MD; Neil Malhotra, MD; William Welch, MD; Zarina Ali (S Plainfield, NJ)

SPINE

1803. Estimating the impact of surgical decompression on quality of life in patients with metastatic spinal cord compression

Asad Mehmood Lak; Amina Rahimi, BS; Abdullah Abunimer, MD; Ian Tafel, MD; Sharmila Devi; Shreya Chawla; Akash Premkumar; Hasan Zaidi, MD (Boston, MA)

SPINE

1807. Examination Of ATTRwt Amyloidosis In Patients Undergoing Spinal Surgery

Keith George; Ron Riesenburger, MD; Rich Dowd, MD; Jayde Nail, MD; James Kryzanski, MD; Michael Mastroianni, BS; Anthony Yu, BS; Andy Wang, BS (Boston, MA)

SPINE

1811. Extended Endoscopic Endonasal Approach for C1-C2 Traumatic and Inflammatory Lesions

Maurizio Iacoangeli, MD, IFAANS; Fabrizio Salvinelli; Stefano Dallari; Maurizio Gladi; Valentina Liverotti; Alessandra Marini; Mauro Dobran (Ancona, Italy)

SPINE

1812. FROM THE PRINTER TO THE THEATRE - 3D PRINTING TECHNIQUE: A STRONGER BASE FOR SKULL BASE

Virendra D. Sinha, MBBS, MS, MCh (Jaipur, India)

SPINE

1815. Feasibility of Surgical Autonomy Program for Timely Evaluation of Resident Performance of ACDF Surgery

Andrew Benjamin Cutler, MD; Alexander Suarez; Charis Spears; Sarah Hodges; Lefko Charalambous; Rajeev Dharmapurikar; Shivinand Lad; Michael Haglund, MD, PhD (Durham, NC)

SPINE

1816. Fluoroscopic Versus CT-guided Cortical Bone Trajectory (CBT) Pedicle Screw Fixation: Comparing Screw Accuracy And Trajectory-Related Complications

Kevin K. Kumar, MD, PhD; Bhavya Parikh; Benjamin Dirlikov, MA; Harminder Singh, MD (Stanford, CA)

SPINE

1820. Free Fibular Strut Graft For Cranial Vertebral Junction Spinal Reconstruction

Wissam Mohamed Elfallal, DO; Wissam Elfallal, DO; Daniel Fahim, MD (Melvindale, MI)

SPINE

1821. Frequency and Implications of Concurrent Complications following Adult Spinal Deformity Corrective Surgery

Peter Gust Passias; Cole Bortz, BA; Katherine Pierce, BS; Avery Brown, BS; Haddy Alas, BS; Waleed Ahmad; Sara Naessig; Shaleen Vira; Muhammad Burhan Janjua; Bassel Diebo; Michael Gerling (Brooklyn Heights, NY)

SPINE

1829. Geographic Variability in Neurosurgeon Reimbursement for Common Spine Procedures 2000-2019

Jordan R Pollock; Jack Haglin, BS; Kent Richter, BS; Rohin Singh, BS; Jakub Godzik, MD; Naresh Patel, MD (Scottsdale, AZ)

SPINE

1834. Hospital Utilization Following Anterior Cervical Discectomy and Fusion

David Mauler; Michael Mooney, MD; John Sheehy, MD; Udaya Kakarla, MD; Michael Bohl, MD (Scottsdale, AZ)

SPINE

1835. How Depression Affects Patient Outcomes Following Surgery For One-Level Spondylolisthesis: A Database Query And Review

Kevin N. Swong, MD; Kevin Swong, MD; Erica Bisson; Mohamad Bydon, MD; Steven Glassman; Kevin Foley, MD; Eric Potts, MD; Osama Kashlan, MD; Anthony Asher, MD; Praveen Mummaneni, MD; Andrew Chan, MD (Ann Arbor, MI)

SPINE

1837. Hypertrophic Scar Following Epidural Injections: Surgical Co-Morbidity and Challenges.

Christian G. Zimmerman, MD, FAANS, FACS; Ariana Garabedian, BS; Mackenzie Malach, BS (Boise, ID)

SPINE

1843. Immune Checkpoint Inhibitors Increase Overall Survival in Renal Cell Carcinoma Metastasis to the Spine

Dante L Pezzutti; Mark Damante, BS; Kristin Huntoon; Thomas Olencki, DO; Bradley Elder, MD (Westerville, OH)

SPINE

1846. Impact of Dialysis on 30-Day Outcomes After Spinal Fusion Surgery for Pathologic Fractures: Insights from a National Quality Registry

Mohamad Bydon, MD, FAANS ; Mohammed Ali Alvi, MBBS; Jad Zreik, BS; Waseem Wahood, MS; Anshit Goyal, MBBS; Brett Freedman, MD; Arjun Sebastian, MD (Rochester, MN)

SPINE

1847. Impact of Nanoparticles Released From Total Disc Replacement Prostheses: Cobalt Nanoparticles Cause Major Platelet Aggregation in Vitro While Chromium Nanoparticles Induce Platelet Lysis in Vitro

Dominik Taterra; Bendik Skinningsrud; Kamil Krupa; Przemysław Pękala, MD, PhD; Krzysztof Tomaszewski (Krakow, Poland)

SPINE

1850. Impact of Unplanned Readmissions (Medical or Surgical) on 3-month and 12-month Outcomes in Elective Surgery for Degenerative Lumbar Spine: A National Study of 33,189 Patients

Inamullah Khan; Scott Zuckerman, MD; Ahilan Sivaganesan, MD; Jacquelyn Pennings, PhD; Mohamad Bydon, MD; Anthony L. Asher, MD; Kristin R. Archer; Clinton J. Devin, MD (Nashville, TN)

SPINE

1851. Imposing Hyperostosis and Spinal Cord Compression Post Radiation Therapy

Christian G. Zimmerman, MD, FAANS, FACS; Mackenzie Malach, BS; Ariana Garabedian, BS (Boise, ID)

SPINE

1854. Improving clinical correlation of motor and sensory deficits using fractional anisotropy and tractography imaging in spinal cord injury patients

Ryan Vimukthie Sandarage; Fahad Alkherayf; Eve Tsai (Vancouver, Canada)

SPINE

1855. Incidence and Trends of Concurrent Hip Diagnoses for Aging Adolescent Idiopathic Scoliosis Patients

Peter Gust Passias; Cole Bortz; Katherine Pierce; Avery Brown, BS; Haddy Alas; Waleed Ahmad; Sara Naessig; Bassel Diebo; Shaleen Vira; Muhammad Burhan Janjua; Aaron Buckland (Brooklyn Heights, NY)

SPINE

1858. Increased Cautiousness in Adolescent Idiopathic Scoliosis Patients Concordant With Syringomyelia Fails to Improve Overall Patient Outcomes

Peter Gust Passias; Katherine Pierce, BS; Haddy Alas, BS; Avery Brown, BS; Cole Bortz, BA; Sara Naessig, BS; Burhan Janjua, MD; Jordan Manning, BA; Shaleen Vira; Aaron Hockley; Aaron Buckland; Peter Passias, MD (Brooklyn Heights, NY)

SPINE

1859. Increased Intra-Operative Blood Loss, Durotomies, And Complications With Longer Intra-Operative Time Spent During Spinal Fusion Regardless Of Number Of Vertebral Levels Involved

Luke Alan Mugge, MD; Luke Mugge, MD; Danielle Dang; John Dang, MD; Andrew Fanous (Falls Church, VA)

SPINE

1868. Instrumentation Of The Lumbosacral Spine By The Sacral-Alar-Iliac Technique Can Reduce Screw Loosening Whilst Improving Gluteal Pain

Nico Sollmann; Sebastian Ille; Bernhard Meyer; Sandro Krieg (Munich, Germany)

SPINE

1869. Instrumented Posterolateral Transpedicular Approach is a Safe Alternative For Resection of Multilevel Ventral Intradural Schwannomas of the Thoracic Spine.

Carlos Goulart, MD; Shawn Rai, MD; Michael Galgano, MD (Syracuse, NY)

SPINE

1870. Integrated Interbody Fusion in Multi-level Cervical Constructs in Clinical Practice

Jason E. Garber, MD, FAANS (Las Vegas, NV)

SPINE

1871. Interbody Fusion Without Direct Decompression As A Novel Treatment For Recurrent Radicular Pain Due to Epidural Fibrosis

Kevin N. Swong, MD; Kevin Swong, MD; Michael Strong, MD, PhD; Brandon Smith, MD; Jay Nathan, MD; Timothy Yee, MD; Mark Oppenlander, MD (Ann Arbor, MI)

SPINE

1873. Interpreting Variable Interactions In Machine Learning Models Of Cost In Spine Surgery: An Application Of Coalitional Game Theory Principles

Michael Martini; Eric Oermann, MD; Sean Neifert, BS; Ian McNeill, MD; Rui Feng, MD; Kanaka Rajan, PhD; Dominic Nistal, BA; Jonathan Gal, MD; John Caridi, MD (New York, NY)

SPINE

1874. Intra-extraspinal Meningiomas: Retrospective Single Institute Analysis

Hai Liu; Wei Luo, MD; Yulun Xu, MD, PhD; Jun Yang, MD (Beijing, China)

SPINE

1875. Intraoperative Hip Flexion Facilitates Insertion of Larger Interbody Spacers During Transforaminal Lumbar Interbody Fusion Procedures

Casey P. Spinelli; Jessica Shields, MD; Jared Robichaux, MD; Clifford Crutcher, MD; Gabriel Tender, MD (New Orleans, LA)

SPINE

1876. Intraoperative Long Cassette Films to Guide Spino-Pelvic Kickstand Placement in Adult Thoracolumbar Deformity Correction

Ryan Christopher Hofler, MD; Russ Nockels, MD (Maywood, IL)

SPINE

1877. Intravenous Drug Use-Associated Spinal Epidural Abscesses Are Characterized By Higher Rates Of Drug-Resistant Organisms And Loss-To-Follow-Up

H. Francis Farhadi, MD, FAANS; Justin Baum, MD; Connor Gifford, BS; Amy Minnema, MS; Ammar Shaikhouni, MD; Shahid Nimjee, MD (Columbus, OH)

SPINE

1882. Is minimally invasive sacroiliac joint fusion is effective for sacroiliac joint dysfunction?

Muhammad Burhan Ud Din Janjua, MD; Sumanth Reddy, MD; Tarek El Ahmadieh, MD; Van Shen Ban, MD; William Welch, MD; Peter Passias, MD (Rockford, IL)

SPINE

1883. July Surgeries At Residency Training Programs Are Associated With Equivalent Outcomes Following Lumbar Spondylolisthesis Surgery: An Analysis of the Quality Outcomes Database

Andrew K. Chan, MD; Arati Patel, MD, Erica F. Bisson MD, MPH, Mohamad Bydon MD, Kevin T. Foley MD, Steven D. Glassman MD, Christopher I. Shaffrey MD, Eric A. Potts MD, Mark E. Shaffrey MD, Domagoj Coric MD, John J. Knightly MD, Michael Y. Wang MD, Paul Park MD, Kai-Ming Fu MD, PhD, Jonathan R. Slotkin MD, Anthony L. Asher MD, Michael S. Virk MD, PhD, Panagiotis Kerezoudis MD, MS, Mohammed A. Alvi MBBS, Jian Guan MD, Winward Choy MD, Regis W. Haid MD, and Praveen V. Mummaneni MD (San Francisco, CA)

SPINE

1886. Lateral Lumbar Interbody Fusion for Multilevel Degenerative Lumbar Spinal Stenosis

Sohail Syed, MD; Sohail Syed, MD; David Liu, BS; Nathan Pertsch, BS; Leary Owen, BS; Adetokunbo Oyelese, MD, PhD; Jared Fridley, MD; Ziya Gokaslan (Providence, RI)

SPINE

1887. Lateral Lumbar Interbody Fusion with Expandable Spacers have Lower Subsidence Rate versus Static Interbody Spacers

Yan Michael Li, MD, PhD; Richard Frisch, MD; Zheng Huang, MD, PhD; James Towner, MD; Yan Li, PhD; Samantha Greeley, BS; Charles Ledonio (Pittsford, NY)

SPINE

1888. Lateral Pre Psoas Approach With Hyper Lordotic Cages for Restoration of Lumbar Lordosis and Anterior Column Reconstruction.

Sajeel Rehmat Khan, MD; Steven Hwang, MD; Comron saifi, MD; Harvey Smith, MD; Vincent Arlet, MD (Chicago, IL)

SPINE

1889. Laterally Placed Expandable Interbody Spacers Improve Radiographic and Clinical Outcomes: A Two-Year Follow-up Study

Yan Michael Li, MD, PhD; Zheng Huang, MD, PhD; James Towner, MD; Yan Li, PhD; Amber Edsall, BS; Charles Ledonio (Pittsford, NY)

SPINE

1891. Local Retropharyngeal Space Anesthetic for Dysphagia Reduction After Anterior Cervical Discectomy and Fusion Surgery: A Single-Center, Prospective, Randomized, Double-Blinded, Placebo-Controlled Clinical Trial

Alan T. Villavicencio, MD, FAANS; Ewell Nelson, MD; Sharad Rajpal, MD; Kara Beasley, DO; Vinod Kantha, BA; Sigita Burneikiene, MD (Boulder, CO)

SPINE

1892. Long-Term Clinical Outcome of Minimally Invasive Versus Open Single-Level Transforaminal Lumbar Interbody Fusion for Degenerative Lumbar Diseases: a Meta-Analysis

Johan Heemskerk; Johan Heemskerk, MD; Oluwaseun Akinduro, MD; William Clifton, MD; Alfredo Quinones-Hinojosa, MD; Kingsley Abode-Iyamah, MD (Jacksonville beach, FL)

SPINE

1895. Lumbar Puncture Increases Risk of Lumbar Degenerative Disc Disease: Analysis from the Rochester Epidemiology Project (REP)

Mohamad Bydon, MD, FAANS ; F. M. Moinuddin, MBBS, PhD; Waseem Wahood, MS; Yagiz Yolcu, MD; Mohammed Alvi, MBBS; Anshit Goyal, MBBS; Ryan Frank, MS (Rochester, MN)

SPINE

1896. Lumbar intervertebral disc mRNA sequencing identifies the regulatory pathway in patients with disc herniation and spondylolisthesis

Mohamad Bydon, MD, FAANS ; F. M. Moinuddin, MBBS, PhD; Yagiz Yolcu, MD; Waseem Wahood, MS; Mohammed Alvi, MBBS; Anshit Goyal, MBBS; Mohammed Elminawy, MBBS; Amel Dudakovic, PhD; Ahmad Nassr, MD; Noelle Larson, MD; Andre van Wijnen, PhD (Rochester, MN)

SPINE

1900. Machine Learning Algorithm for Prediction of Patient-Reported Outcomes with Age-Adjusted Modeling in Patients with Grade 1 Spondylolisthesis

Brenton Henry Pennicooke, MD; Andrew K. Chan MD, Erica F. Bisson MD, MPH, Mohamad Bydon MD, Kevin T. Foley MD, Steven D. Glassman MD, Christopher I. Shaffrey MD, Eric A. Potts MD, Mark E. Shaffrey MD, Domagoj Coric MD, John J. Knightly MD, Michael Y. Wang MD, Paul Park MD, Kai-Ming Fu MD, PhD, Jonathan R. Slotkin MD, Anthony L. Asher MD, Michael S. Virk MD, PhD, Panagiotis Kerezoudis MD, MS, Mohammed A. Alvi MBBS, Jian Guan MD, Michele Santacanterina PhD, Regis W. Haid MD, and Praveen V. Mummaneni MD (San Francisco, CA)

SPINE

1905. Metal Hypersensitivity After Spinal Instrumentation: When to Suspect and How to Treat

Kara Curley; Chandan Krishna, MD; Tanmoy Maiti, MBBS; Jamal McClendon, MD; Bernard Bendok, MD (Phoenix, AZ)

SPINE

1906. Micro Lumbar Discectomy with Zero Discitis rate.

Gopal Raman Sharma, MD, IFAANS (Kathmandu, Nepal)

SPINE

1909. Minimally Invasive Direct Lateral Interbody Fusion (MIS-DLIF): Proof of Concept and Perioperative Results

Hamid R. Abbasi, MD, PhD, FAANS; Hamid Abbasi (Alexandria, MN)

SPINE

1910. Minimally Invasive Direct Thoracic Interbody Fusion (MIS-DTIF): Technical Notes of a Single Surgeon Study.

Hamid R. Abbasi, MD, PhD, FAANS; Hamid Abbasi (Alexandria, MN)

SPINE

1911. Minimally Invasive Navigated Robot-Guided Lumbosacral Pedicle Screw Accuracy: An Evaluation of 272 Pedicle Screws

Charles William Kanaly, MD, FAANS ; Danielle Backes, PhD; Jessica Riggleman, BS; Samantha Greeley, BS; Charles Ledonio (Fall River, MA)

SPINE

1912. Minimally Invasive Scoliosis Surgery with Trans-Kambin Posterior Oblique Lateral Lumbar Interbody Fusion: Single Surgeon Feasibility Study

Hamid R. Abbasi, MD, PhD, FAANS; Hamid Abbasi (Alexandria, MN)

SPINE

1913. Minimally Invasive Transforaminal Lumbar Interbody Fusion Results in Less Reoperation than Open Transforaminal Lumbar Interbody Fusion

Barry Cheaney II; Barry Cheaney II, BS; Diana Ko, BS; Brittany Stedelin, BS; Ahmed Raslan, MD; Khoi Than, MD (Portland, OR)

SPINE

1914. Minimally Invasive versus Open Surgery for Degenerative Spine Disorders for Elderly Patients: Experiences from a Single Institution

Mohamad Bydon, MD, FAANS ; Yagiz Yolcu, MD; Atiq Bhatti, MD; Anshit Goyal, MBBS; Mohammed Alvi, MBBS (Rochester, MN)

SPINE

1915. Minimally Invasive versus Open Surgery for Patients Undergoing Intradural Extramedullary Spinal Cord tumor Resection: A Systematic Review and Meta-Analysis

Mohamad Bydon, MD, FAANS ; Yagiz Yolcu, MD; Amika Kamath; Waseem Wahood, MS; Anshit Goyal, MBBS; Mohammed Alvi, MBBS (Rochester, MN)

SPINE

1918. Modification of the Castellvi Classification System with a Guide Towards Treatment Decision Making for Bertolotti's Syndrome

Arthur L. Jenkins III, MD, FAANS; Charlotte Hawks, MS; Hiromi Terai, BA; Sarah Herrara-Nicol; Ryan Adams, BS; Brian Johnson; Stanislaw Sobotka (New York, NY)

SPINE

1919. Multiple Spinal Stabilization As A Treatment For Hirayama Disease: Experience With Seven Cases.

Achal Gupta, MBBS, DNB; Abhidha Shah; Atul Goel (Mumbai, India)

SPINE

1920. National Trends in the Surgical Management of Lumbar Spinal Stenosis in Adult Spinal Deformity Patients

Martin Huy Pham, MD; Omar Al Jammal, BA; Arash Delavar, MPH; Kathleen Maguire, BS; Brian Hirshman, MD, PhD; Arvin Wali, MD; Majd Kazzazz, BS (La Jolla, CA)

SPINE

1923. Negative Pressure Wound Therapy For Prevention Of Postoperative Wound Complications in Posterior Spinal Surgery: A Retrospective Analysis

Asad Shahab Akhter, MD; Benjamin McGahan, MD; Liesl Close, MD; Andrew Grossbach, MD (Columbus, OH)

SPINE

1925. Neurocysticercosis of the Adult Spine: Systematic Review of Diagnostic and Management Strategies

Olatunde Badejo; Umaru Barrie, BS; Emmanuel Adeyemo, BA; Salah Aoun, MD; Valery Peinado Reyes, PA; Kristen Hall; Louis Whitworth, MD; Carlos Bagley (Dallas, TX)

SPINE

1926. No Benefit Of Prolonged Prophylactic Systemic Antibiotics (PPSA) For Subfascial Drains After Posterior Spinal Surgery For Degenerative Disease

William James Mualem; Gnel Pivazyan, MD; Matthew D'Antuono, BS; Nathan Nair, MD; Kyle Mueller, MD (Washington, DC)

SPINE

1928. Novel Biomimetic Delivery System of Adipose-Derived Stem Cells and Platelet-Derived Growth Factor with Osteoinductive Bone Particles in Biodegradable Grafts Displays Successful Posterolateral Lumbar Spinal Fusion

Alexander Perdomo-Pantoja, MD; Alexandra Rindone, BS; Christina Holmes, PhD; Kathleen Noller, BS; Warren Grayson, PhD; Timothy Witham, MD (Baltimore, MD)

SPINE

1929. Novel Lateral Approach for MIS Sacro-Iliac Joint Arthrodesis - an Assessment of Feasibility and Outcomes

Muhammad Abu-Rmaileh; Sidhant Dalal, BS; Matthew Helton, MD; Jerry Walters, MD; Noojan Kazemi, MD (Little Rock, AR)

SPINE

1940. PROMIS Better Reflects the Impact of Length of Stay and the Occurrence of Complications within 90 Days than Legacy Outcome Measures for Lumbar Degenerative Surgery

Peter Gust Passias; Cole Bortz, BA; Katherine Pierce, BS; Haddy Alas, BS; Avery Brown, BS; Sara Naessig, BS; Bassel Diebo, MD; Renaud Lafage, MS; Virginie Lafage, PhD; Shaleen Vira; Burhan Janjua, MD; Peter Passias, MD (Brooklyn Heights, NY)

SPINE

1943. Patients with Depression Can Achieve Optimum Outcomes after Surgery for Grade 1 Spondylolisthesis: Analysis from the Quality Outcomes Database (QOD)

Kevin Swong, MD; Erica F. Bisson, MD, MPH ; Praveen V. Mummaneni, MD; John Knightly, MD; Mohammed Ali Alvi, MBBS; Andrew Chan, MD; Anshit Goyal, MBBS; Steven Glassman, MD; Kevin Foley, MD; Jonathan R. Slotkin, MD; Eric Potts, MD; Mark Shaffrey, MD; Christopher I. Shaffrey, MD; Regis W. Haid, Jr., MD; Kai-Ming Fu, MD; Michael Y. Wang, MD; Anthony L. Asher, MD; Mohamad Bydon, MD and Paul Park, MD (Rochester, MN)

SPINE

1944. Patients with Mental Health Diseases Have Increased Odds of Complications, Costs, and Death in Elective Orthopedic Procedures

Peter Gust Passias; Avery Brown; Katherine Pierce; Cole Bortz; Haddy Alas; Waleed Ahmad; Sara Naessig; Shaleen Vira; Muhammad Burhan Janjua; Bassel Diebo; Michael Gerling (Brooklyn Heights, NY)

SPINE

1945. Percutaneous Laser Disc Decompression And Surgical Outcomes Of The Treatment Of Lumbar Disc Herniation-Overview Of 141 Patients

Peter Banczerowski; György Berenyi; Zoltan Nagy; Gabor Czigleczki, PhD; Norbert Lekka (Budapest, Hungary)

SPINE

1947. Performance Of Adipose Tissue-Derived Stromal Vascular Fraction (A-SVF) Cells in A Lumbar Spinal Fusion Model: Cultured-expansion Or Priming Are Needed?

Alexander Perdomo-Pantoja, MD; Christina Holmes, PhD; Ethan Cottrill, MS; Alexandra Rindone, BS; Wataru Ishida, MD; Maritza Taylor, MS; Colson Tomberlin, BS; Sheng-fu Lo, MD; Warren Grayson, PhD; Timothy Witham, MD (Baltimore, MD)

SPINE

1948. Peri-Operative Outcomes for Adult Patients with the Modified Metabolic Syndrome Undergoing Elective Spine Surgery

Nathan Pertsch; Andreea Seicean; Krissia Rivera Perla; Steven Toms, MD, MPH; Robert Weil, MD (Providence, RI)

SPINE

1951. Pilot Study of Program to Determine Timeline to Competency in Anterior Cervical Discectomy and Fusion

Alexander Daniel Suarez, MD; Andrew Cutler, MD; Charis Spears; Sarah Hodges; Lefko Charalambous; Rajeev Dharmapurikar; Shivinand Lad, MD, PhD; Michael Haglund, MD, PhD (Durham, NC)

SPINE

1953. Platelet Rich Fibrin Augmentation Of Persistent Deep Surgical Site Infections after Instrumented Spinal Surgery: Initial Single Center Experience

Ioannis Vasilikos; Roland Roelz, MD; Christoph Scholz; Ulrich Hubbe (Baden Wuerttemberg, Germany)

SPINE

1954. Positive Correlation Between Spinal Instability and iIncreased Facet Joint Fluid in Degenerative Spine disease

Komal Naeem; Karim Nathani, MBBS; Muhammad Barakzai, MBBS; Saad Khan, MBBS; Fatima Mubarak, MBBS; Syed Enam, MBBS (Karachi, Pakistan)

SPINE

1955. Post-Operative Opioid Prescribing Based On Patient Utilization On The Day Of Discharge Reduces Over-Prescribing Following Cervical And Lumbar Fusions

Pawel Grzegorz Ochalski, MD, FAANS; Christopher Seidel, DO; John Stover, PharmD; Dee Carbaugh, RN; Christopher Echterling, MD; Mark Deitch, MD; Lori Clark; Grant Sorkin, MD; Joseph Krzeminski, MD; Arnold Salotto, MD; Joel Winer, MD; Pawel Ochalski, MD (York, PA)

SPINE

1956. Post-Operative Radiographic Distance Between C7 Plumb Line and Upper Instrumented Vertebra Less Than 10 cm Associated With Increased Risk of Proximal Junctional Kyphosis Following Thoracolumbar Deformity Correction

Alaina Body; Bryan Krueger, MD; Zachary Plummer, MD; Zachary Porter; Rani Nasser, MD; Joseph Cheng, MD (Cincinnati, OAX)

SPINE

1958. Postoperative Intracranial Migration Of A C2 Odontoid Screw

Seong-Jin Moon, MD; Ankush Chandra; Blake Walker; Emre Yilmaz; Marc Moisi; Robert Johnson (Detroit, MI)

SPINE

1959. Postoperative Opioid Prescribing Patterns in Adults Diagnosed with Back or Lower Extremity Pain Undergoing Thoracic and Lumbosacral Surgeries within One Year of Diagnosis

Parastou Fatemi, MD; Yi Zhang, BA; Allen Ho, MD; Roberto Lama; Michael Jin, BS; Anand Veeravagu, MD; Atman Desai, MD; John Ratliff, MD (Stanford, CA)

SPINE

1961. Potential for Early Detection of ATTRwt Amyloidosis by Ligamentum Flavum Biopsy in the Context of Spinal Decompression Surgery

Anthony Yu; Michael Mastroianni, MS; Andy Wang, BS; Richard Dowd, MD, MS; Tara Nail, MD; Knarik Arkun, MD; James Kryzanski, MD; Oscar Soto, MD; Teresa Fogaren, NP; Kelly Harrington, NP; Ayan Patel, MD; Ron Riesenburger, MD (Boston, MA)

SPINE

1962. Pre-operative Risk Factors Associated With The Implementation Of Wound Closure With Prophylactic Muscle Flaps And Peri-operative Factors Associated With Subsequent Post-operative Complications

Meghan Price; Elizabeth Howell, BS; Vikram Mehta, MD, MPH; Rose Tillis, MD; Luis Ramirez; Daniel Villalobos; George Bukenya; Jessica Goodwin; Muhammad Abd-El-Barr, MD, PhD; Isaac Karikari, MD; David Brown, MD, PhD; Rory Goodwin, MD, PhD (Durham, NC)

SPINE

1967. Prediction of Risk Factors for 30-day Unplanned Readmission Following Elective Spine Surgery: A Comparison of Database and Institutional Analyses

Mohamad Bydon, MD, FAANS ; Shyam Kurian, BS; Yagiz Yolcu, MD; Jad Zreik, BS; Anshit Goyal, MBBS; Mohammed Alvi, MBBS (Rochester, MN)

SPINE

1973. Predictors of 90-Day Adverse Events after Elective Surgery for Degenerative Cervical Myelopathy and Radiculopathy

Inamullah Khan; Jacquelyn S. Pennings, PhD; Muhammad Ali Alvi, MD; Mohamad Bydon; Anthony L. Asher, MD; Kristin R. Archer; Clinton J. Devin, MD (Nashville, TN)

SPINE

1985. Preliminary Clinical and Radiographic Results From A Multicenter, Prospective Lumbar Spinal Fusion Study of a Cellular Bone Allograft

Daniel Park; Rafe Sales, MD; Timothy Peppers, MD; Joshua Wind, MD; Anthony Russo; Hamid Hassanzadeh (bloomfield hills, MI)

SPINE

1987. Preoperative Opioid Use and Clinical Outcomes in Spine Surgery: a Systematic Review

Ketan Yerneni; Noah Nichols, BA; Zachary Abecassis, BA; Constantine Karras, MD; Lee Tan, MD

SPINE

1989. Prevalence of Arnold Chiari Malformation (ACM) in Ehler Danlos Syndrome (EDS) Patients

Eda Hasbay; Eliz Hasbay; Cesar Peralta; Mustafa Abdeen; Hafsa Fatima; Lan Yang; Aamer Ubaid; Amer Suleman (McKinney, TX)

SPINE

1994. Prophylactic Trunk Flap Is Associated With More wound Infections In An Unmatched Patient Population

Meghan Price; Elizabeth Howell, BS; Vikram Mehta, MD, MPH; Rose Tillis, MD; Luis Ramirez; Kyle Miller; George Bukenya; Christine Park, BS; Muhammad Abd-El-Barr, MD, PhD; Isaac Karikari, MD; David Brown, MD, PhD; Rory Goodwin, MD, PhD (Durham, NC)

SPINE

1995. Prospective Multicenter Assessment of Complication Rates Associated with Adult Cervical Deformity Surgery in 133 Patients with Minimum 1-Year Follow-Up

Thomas Buell, MD; Christopher Shaffrey; Virginie Lafage; Frank Schwab; Themistocles Protopsaltis; Peter Passias; Han Jo Kim; Eric Klineberg; Christopher Ames; Justin Smith; ISSG (Charlottesville, VA)

SPINE

2001. REVISION OF LUMBAR TOTAL DISC REPLACEMENT WITH A NEW TECHNIQUE: PRONE TRANSPSOAS (PTP) APPROACH

Luiz Pimenta; Rodrigo Amaral; Gabriel Pokorny; Raquel Rodrigues (São Paulo, Brazil)

SPINE

2003. Radiographic Benefit of Incorporating the Inflection between the Cervical and Thoracic Curves in Fusion Constructs for Surgical Cervical Deformity Patients

Peter Gust Passias; Cole Bortz, BA; Peter Passias, MD; Renaud Lafage, MS; Christopher Ames, MD; Bassel Diebo, MD; Breton Line, BS; Eric Klineberg; Frank Schwab, MD; Justin Smith, MD, PhD; Virginie Lafage, PhD; International Spine Study Group (Brooklyn Heights, NY)

SPINE

2005. Rates and Etiologies of Reoperation in a Large, Single-Center Cohort of Surgical Spine Patients

Peter Gust Passias; Haddy Alas, BS; Avery Brown, BS; Katherine Pierce, BS; Cole Bortz, BA; Sara Naessig, BS; Waleed Ahmad, MS; Shaleen Vira, MD; Burhan Janjua, MD; Bassel Diebo, MD; Themistocles Protopsaltis, MD; Peter Passias, MD (Brooklyn Heights, NY)

SPINE

2006. Rational for Surgical intervention as Untreated Adolescents become Adult idiopathic Scoliosis Patients: An International Survey of the Experts

Jennifer Z. Mao, MBA; Jennifer Mao, MBA; Timothy O’Connor, MD; Alex Hollenberg, BS; Asham Khan, MD; Justice Agyei, MD; Marc Christiansen, MD, PhD; Moleca Ghannam, MD; John Pollina; Alex Vaccaro; Jeffrey Mullin (Buffalo, NY)

SPINE

2008. Recurrent Epidural Abscesses After ACDF In Patients With An Esophageal Diverticulum: Case Report And Literature Review With Proposed Management Guidelines

Breck Aaron Jones, MD; Jose Espinosa, MD (Springfield, IL)

SPINE

2010. Redefining Cervical Spine Deformity Classification through Novel Cut-Offs: An Assessment of the Relationship Between Radiographic Parameters and Functional Neurological Outcomes

Peter Gust Passias; Peter Passias; Katherine Pierce; Renaud Lafage, MS; Virginie Lafage, PhD; Breton Line, BS; Eric Klineberg, MD; Christopher Shaffrey, MD; Frank Schwab, MD; Justin Smith, MD, PhD; Christopher Ames, MD; International Spine Study Group (Brooklyn Heights, NY)

SPINE

2011. Reducing Wrong Level Spinal Surgeries Through Root Cause Analyses: A Ten Year Longitudinal Analysis of a Single Tertiary Institution's Iterative Policy Improvements

Shaarada Srivatsa; Shaleen Vira, MD; Ajit Krishnaney, MD (Cleveland, OH)

SPINE

2012. Reduction vs In-situ fusion for Adult High-Grade Spondylolisthesis: A Systematic Review and Meta-analysis.

Asad Mehmood Lak; Abdullah Abunimer, MD; Sharmila Devi; Shreya Chawla; Levent Aydin, MD; Ian Tafel, MD; Rania Mekary, PhD; Hasan Zaidi, MD (Boston, MA)

SPINE

2013. Reoperation Rates for Symptomatic Nonunions in Instrumented Posterolateral Lumbar Fusions: Analysis of a Cohort of 2564 Patients from the Kaiser Permanente National Spine Registry

Kern H. Guppy, MD, PhD, FAANS; Harsimran Brara, MD; Elizabeth Norheim, MD; Shayan Rahman, MD; Patrick Suen, MD; David Moller, MD; Jessica Harris; Kathryn Royse (Sacramento, CA)

SPINE

2014. Retrospective Chart-Review of Multilevel Anterior Cervical Discectomy and Fusion Procedures and Outcomes at the UVA Health System.

Jesse McClure; Jesse McClure, PhD; Bhargav Desai, MD; Leah Shabo; Thomas Buell, MD; Hamid Hassanzadeh, MD; Chun-Po Yen, MD; Justin Smith, MD, PhD; Chris Shaffrey, MD; Mark Shaffrey, MD; Avery Buchholz, MD (Charlottesville, VA)

SPINE

2016. Risk Factors for Patients Undergoing Anterior Cervical Discectomy and Fusion after a Prior Posterior Cervical Foraminotomy

Mohamad Bydon, MD, FAANS ; Jad Zreik, BS; Yagiz Yolcu, MD; John Atkinson, MD; William Krauss, MD; W Marsh, MD; Mohammed Ali Alvi, MBBS; Brett Freedman, MD; Arjun Sebastian, MD (Rochester, MN)

SPINE

2017. Risk Factors for Unplanned Readmissions in Anterior Discectomy and Fusion and Posterior Lumbar Fusion Procedures: Comparison of Two National Databases

Mohamad Bydon, MD, FAANS ; Shyam Kurian, BS; Waseem Wahood; Yagiz Yolcu, MD; Elena Blaginykh, MD, MPH; Anshit Goyal, MBBS; Mohammed Alvi, MBBS (Rochester, MN)

SPINE

2018. Risk Factors for Wound-Related Complications Following Surgery for Primary and Metastatic Spine Tumors: A Systematic Review and Meta-Analysis

Andy Schilling; Jeff Ehresman, BS; Sakibul Huq, BS; A. Karim Ahmed, BS; Daniel Lubelski, MD; Ethan Cottrill, MS; Zach Pennington, BS; John Shin, MD; Daniel Sciubba, MD (Baltimore, MD)

SPINE

2020. Rotational Vertebral Artery Compression Syndrome in Rheumatoid Arthritis-Associated Cranial Settling

Brian Patrick Curry, MD; Daniel Ikeda, MD (Bethesda, MD)

SPINE

2024. Sacral Insufficiency Fractures after Lumbosacral Arthrodesis: Salvage Lumbopelvic Fixation and a Proposed Management Algorithm

Thomas Buell, MD; Ulas Yener; Tony Wang; Avery Buchholz; Chun-Po Yen; Mark Shaffrey; Christopher Shaffrey; Justin Smith, MD, PhD (Charlottesville, VA)

SPINE

2025. Safety and Efficacy of Direct Nerve Root Decompression via Anterior Cervical Foraminotomy with Uncinate Process Resection

Noah Nichols; Lee Tan, MD (San Francisco, CA)

SPINE

2030. Single Position Surgery for Lateral Interbody fusion and Pedicle Screw Fixation- Comparison Between CT Navigation and Robot Assisted Navigation.

Komal Naeem; Malika Bhargava, MD; Randall Porter, MD (Phoenix, AZ)

SPINE

2031. Single-Level Posterior Cervical Surgery in the Sitting and Prone Positions

Benjamin T. Himes, MD; Arnoley Abcejo, MD; Panagiotis Kerezoudis, MD, MS; Katherine Trelstad-Andrist, PA; John Atkinson, MD; Fredric Meyer, MD; W. Marsh, MD; Mohamad Bydon, MD (Rochester, MN)

SPINE

2033. Sodium Defects and Peri-Operative Outcomes in Adults Undergoing Elective Spine Surgery

Nathan Pertsch; Andreea Seicean; Daniel Kraft, BA; Steven Toms, MD, MPH; Robert Weil, MD (Providence, RI)

SPINE

2036. Spinal Arachnoid Webs: Case series, Diagnosis, and Management

Nealen Gordon Laxpati, MD, PhD; James Malcolm; Matthew Gary, MD (Atlanta, GA)

SPINE

2037. Spinal Cord Infarction In Epidural Abscess

Kirsty Hamilton, MBBS; Mauricio Avila; Robin Hurlbert (Tucson, AZ)

SPINE

2044. Surgical Management of Anterior Cervical Osteophytes Causing Dysphagia

Mohamad Bydon, MD, FAANS ; Joshua Kolz, MD; Mohammed Alvi, MBBS; Atiq Bhatti, MD; Yagiz Yolcu, MD; Ahmad Nassr, MD; Bradford Currier, MD; Brett Freedman, MD (Rochester, MN)

SPINE

2045. Surgical Treatment Of Spinal Lesions With The Aid Of 3D Printed Models

Zoltan Attila Papp; Peter Banczerowski (Budapest, Hungary)

SPINE

2049. Swan Neck Deformity Correction with Multilevel Anterior Cervical Integrated Cages

Jason E. Garber, MD, FAANS; N. Shastry Akella, PhD (Las Vegas, NV)

SPINE

2050. Symptomatic Lumbar Discal Cyst, A Rare Entity That Can Mimic Other Lumbar Cystic Lesions.

Zaid Aljuboori, MD; Thomas Altstadt, MD (Louisville, KY)

SPINE

2060. The Atlanto-Axial Fracture Is A Deadly Injury

Anand Patel; Anand Patel; Suchi Amin, BS; Purvi Patel, MD; Michael Anstadt; Vikram Prabhu, MD; Suguna Pappu, MD, PhD (Maywood, IL)

SPINE

2063. The Effect of Red Blood Cell Transfusion on Perioperative Morbidity after Metastatic Spinal Tumor Surgery in an Underserved Population

Joshua Benton; Rafael De la Garza Ramos, MD; Yaroslav Gelfand, MD; Phillip Cezayirli, MD; Murray Echt, MD; Vijay Yanamadala, MD; Reza Yassari, MD (Bronx, NY)

SPINE

2064. The Effect of T1-Slope in Spinal Parameters after Cervical Disc Arthroplasty

Tsung-Hsi Tu, MD; Tsung-Hsi Tu, MD; Yi-Hsuan Kuo, MD; Chao-Hung Kuo, MD; Jau-Ching Wu, MD, PhD; Wen-Cheng Huang, MD, PhD (Taipei, Taiwan)

SPINE

2065. The Effects of a Tri-cortical Screw Construct on Proximal Junctional Kyphosis

Michael Kader, MD; Gregory Basil; TImur Urakov (Miami, FL)

SPINE

2067. The Impact Of Osteobiologic Type On The Rate Of Pseudarthrosis In Single-Level And Multi-Level Lumbar Fusion

Shane Shahrestani; Shane Shahrestani, MS; Alexander Ballatori, BA; Xiao Chen, BA; Andy Ton, BS; Jeffrey Wang, MD; Zorica Buser, PhD (Yorba Linda, CA)

SPINE

2068. The Impact Of Surgical Chronology On Outcomes Of Patients Receiving Lumbar Spine And Lower Extremity Joint Surgeries

Karam Atli; Gabriel Smith, MD; Konrad Knusel; Edward Benzel, MD; Thomas Mroz, MD; Ajit Krishnaney, MD; Michael Steinmetz, MD (Cleveland, OH)

SPINE

2070. The Impact of Bleeding Disorders on 30-day Outcomes among Patients Undergoing Cervical Corpectomy Procedures: Analyses from a National Surgical Quality Registry

Mohamad Bydon, MD, FAANS ; Fady Banno, MS; Mohammed Ali Alvi, MBBS; Jad Zreik, BS; Waseem Wahood, MS; Anshit Goyal, MBBS (Rochester, MN)

SPINE

2072. The Impact of Platelet-Rich Plasma (PRP) on Postoperative Outcomes after Spinal Fusion: A Systematic Review and Meta-Analysis

Mohamad Bydon, MD, FAANS ; Yagiz Yolcu, MD; Waseem Wahood, MS; Abdullah Eissa, MBBS; Brett Freedman, MD; Benjamin Elder, MD, PhD (Rochester, MN)

SPINE

2074. The Incidence of the 11th Rib and an Example of an Implication in Spine Surgery

Gabriel Stefano Gonzales-Portillo; Travis Dumont, MD (Tucson, AZ)

SPINE

2075. The Integration of a Formal Debate in a Surgical Simulation Course: An Effective Way To Teach Surgical Decision Making

Magalie Cadieux; David Ben-Israel, MD; W. Jacobs, MD; Jay Riva-Cambrin, MD (Calgary, Canada)

SPINE

2076. The Lordosing Effect of the Prone Transpsoas Technique – Preliminary Results of a Multicenter Experience

Luiz Pimenta; Rodrigo Amaral; Willian Taylor; Antoine Tomeh; Gabriel Pokorny; Raquel Rodrigues; Daniel Arnoni (São Paulo, Brazil)

SPINE

2077. The Mortality Rate of Spinal Cord Injury in Older Adults

Daniel Zeitouni; Michael Catalino, MD, MSc; Brice Kessler, MD; Virginia Pate, MS; Til Sturmer; Carolyn Quinsey, MD; Deb Bhowmick, MD (Chapel Hill, NC)

SPINE

2085. The Use Of Heads-Up Display For Pedicle Screw Fixation, Interbody Cage And Iliac Bolt Placement

Michael Francis Spadola, MD; Rachel Blue, MD; Anissa Saylany, BS; Nikhil Sharma, BS; Ali Ozturk, MD; Jang Yoon (Philadelphia, PA)

SPINE

2086. The Use of a Novel Heads-Up Display to View Intra-operative X-rays During a One Level Cervical Arthroplasty

Anissa Saylany; Michael Spadola, MD; Rachel Blue, MD; Nikhil Sharma, MS; Ali Ozturk, MD; Jang Yoon, MD, MSc (Philadelphia, PA)

SPINE

2087. The Utility of Intraoperative Neuromonitoring on Simple Posterior Lumbar Fusions – Analysis of the National Inpatient Sample

Ryan Joseph Austerman, MD; Suraj Sulhan, MD; William Steele, MD; Paul Holman, MD; Sean Barber, MD (Houston, TX)

SPINE

2088. The Utility of Preoperative Laboratory Testing in Assessing Risk of Adverse Outcomes Following Anterior Cervical Discectomy and Fusion: Insights from a National Surgical Registry

Mohamad Bydon, MD, FAANS ; Jad Zreik, BS; Anshit Goyal, MBBS; Mohammed Ali Alvi, MBBS; Brett Freedman, MD (Rochester, MN)

SPINE

2089. The effect of opioid dependence on postoperative urinary retention, length of stay and non-routine hospital discharges following lumbar fusion surgery

Mohamad Bydon, MD, FAANS ; Ronan Doherty; Waseem Wahood; Yagiz Yolcu; Jad Zreik, BS; Anshit Goyal, MBBS; Mohammed Alvi, MBBS; Elizabeth Habermann (Rochester, MN)

SPINE

2094. Timing of Conversion to Cervical Malalignment and PJK Following Surgical Correction of Adult Spinal Deformity: A 3-Year Radiographic Analysis

Peter Gust Passias; Peter Passias, MD; Haddy Alas, BS; Han Jo KIm, MD; Renaud Lafage, MS; Christopher Ames, MD; Eric Klineberg, MD; Shaleen Vira, MD; Burhan Janjua, MD; Justin Smith, MD, PhD; Frank Schwab, MD; Virginie Lafage, PhD (Brooklyn Heights, NY)

SPINE

2096. Treatment Of Neoplastic And Tumorous Lesions Of The Spine With Spondylectomy – A Retrospective Analysis Of 582 Patients.

Alexander Spiessberger, MD; Varun Arvind; Basil Grueter; Edin Nevzati; Samuel Cho (Manhasset, NY)

SPINE

2098. Trends In Utilization For Thoracic And Lumbar Three-Column Versus Posterior Column Osteotomy In The Medicare Population (2008-2018)

Timothy Chryssikos, MD, PhD; Timothy Chryssikos, MD, PhD; Joshua Olexa, MD; Madeleine Smith, BA; Harry Mushlin, MD; Nathan Pratt, MD; Gary Schwartzbauer, MD, PhD; Kenneth Crandall, MD; Charles Sansur (Baltimore, MD)

SPINE

2099. Trends in the Abscopal Effect After Radiation to Spinal Metastases: A Systematic Review

Sharath Kumar Anand; Mohamed Macki; Mohamed Fakih; Jaafar Elmenini; Raviteja Suryadevara; Adam M Robin (Ann Arbor, MI)

SPINE

2100. Two Year Comparative Effectiveness of Adjustable Lordotic Expandable versus Static Lateral Lumbar Interbody Fusion Devices

Yan Michael Li, MD, PhD; Richard Frisch, MD; Zheng Huang, MD, PhD; James Towner, MD; Yan Li, PhD; Jessica Riggleman, BS; Charles Ledonio (Pittsford, NY)

SPINE

2101. Two vs One Surgeon for Complex Spine Deformity. A Systematic Review and Meta-analysis

Asad Mehmood Lak; Abdullah Abunimer, MD; Caroline Goedmakers, BSc; Rania Mekary, PhD; Linda Aglio, MD; Melvin Makhni, MD; Hasan Zaidi, MD (Boston, MA)

SPINE

2102. Types And Timing Of Reoperation Following Surgery For Grade 1 Degenerative Lumbar Spondylolisthesis

Andrew K. Chan, MD; Erica F. Bisson MD, MPH, Mohamad Bydon MD, Kevin T. Foley MD, Steven D. Glassman MD, Christopher I. Shaffrey MD, Eric A. Potts MD, Mark E. Shaffrey MD, Domagoj Coric MD, John J. Knightly MD, Michael Y. Wang MD, Paul Park MD, Kai-Ming Fu MD, PhD, Jonathan R. Slotkin MD, Anthony L. Asher MD, Michael S. Virk MD, PhD, Panagiotis Kerezoudis MD, MS, Mohammed A. Alvi MBBS, Jian Guan MD, Regis W. Haid MD, and Praveen V. Mummaneni MD (San Francisco, CA)

SPINE

2103. Unplanned 30-Day Readmission Rates After Spine Surgery In A Community-Based Hospital Setting

Alan T. Villavicencio, MD, FAANS; Sharad Rajpal, MD; Ewell Nelson, MD; Samantha Avoian, BA; Sigita Burneikiene, MD (Boulder, CO)

SPINE

2105. Use of Epigenetic Tools in Induced Pluripotent Stem Cell-Based Therapy: Role of SUV39H1 Silencing

Leena Shah (Brighton, MI)

SPINE

2109. Utilization of Posterior Lumbar Fusion Varies By Yearly Quarter: Insights from the National Inpatient Sample

Mohamad Bydon, MD, FAANS ; Waseem Wahood, MS; Alex Alexander; Mohammed Alvi, MBBS; Anshit Goyal, MBBS; Yagiz Yolcu, MD (Rochester, MN)

SPINE

2112. Variation in elective anterior cervical discectomy and fusion outcomes between individuals with or without mental illness: analysis of national readmissions data

Mohamad Bydon, MD, FAANS ; Jake Berg, BS; Mohammed Alvi, MBBS; Waseem Wahood, MS; Allie Canoy Illies, MPH; Anshit Goyal, MBBS; Panagiotis Kerezoudis, MD, MS; Benjamin Elder, MD, PhD (Rochester, MN)

SPINE

2118.   Use of Direct Percutaneous Polymethylmethacrylate Embolization (DPPE) with or without Feeding Artery Embolization Prior to Corpectomy for the Resection of Vascular Spine Tumors

Krisztina Moldovan, MD; Joseph Carnevale, MD, PhD; Radmehr Torabi, MD, PhD; Richard Haas, MD, PhD; Mahesh Jayaraman, MD, PhD; Ryan McTaggart, MD; Adetokonbo Oyelese, MD, PhD; Ziya Gokaslan, MD, PhD (Providence, RI)

S_F

2119. 3D Model Characterization of Brain Tissue Damage in Magnetic Resonance-guided Laser Interstitial Thermal Therapy via a Computational Algorithm in MATLAB

Allison S Liang; Sean Munier; Shabbar Danish (Highland Park, NJ)

S_F

2120. A Deep Brain-Computer Interface Allows Patients With Parkinson’s Disease To Self-Regulate Pathological Deep Brain Oscillations Through Neurofeedback

Oliver Bichsel; Lennart Stieglitz; Markus Oertel; Christian Baumann; Lukas Imbach, MD; Roger Gassert (Wohlen, Switzerland)

S_F

2122. A Standardized Electrode Nomenclature For Stereoelectroencephalography Applications

Emily Louise Day; Vamsidhar Chavakula, MD; Joseph Madsen, MD; Scellig Stone, MD, PhD, FRCSC (Boston, MA)

S_F

2123. A Unified Framework For Dopamine Signals Across Timescales

Athar N. Malik, MD, PhD; HyungGoo Kim, PhD; Athar Malik, MD, PhD; John Mikhael; Pol Bech; Iku Tsutsui-Kimura, PhD; Fangmiao Sun; Yajun Zhang; Yulong Li, PhD; Mitsuko Watabe-Uchida, PhD; Samuel Gershman, PhD; Naoshige Uchida, PhD (Boston, MA)

S_F

2127. Acute And Long-term Changes In Parkinson’s Disease Patients Treated With Deep Brain Stimulation Targeting Subthalamic Nucleus: Insights Provided By Molecular Imaging And Brain Mapping

Mehr Jain; Alexandre Boutet, MD; Dave Gwun; Pablo Rusjan, PhD; Clemens Neudorfer, MD; Gavin J.B. Elias, BA; Jurgen Germann, MSc; Walter Kucharczyk, MD; Alfonso Fasano, MD, PhD; Gwenn Smith, PhD; Andres Lozano, MD, PhD (Ottawa, Canada)

S_F

2131. Best Surgical Practices: Initial Results of 11-year Analysis of DBS Infection Rates and Response to Change in Surgical Technique

Alex Robert Flores; Cole Sloboda, BS; Aaron Gelinne, MD; Nathan Quig, MD; Randaline Barnett, MD; Eldad Hadar, MD (Chapel Hill, NC)

S_F

2133. Clinical Outcome of Hypofractionated Stereotactic Radiotherapy (HFSRT) among Patients with Primary and Metastatic Brain Tumors in a Tertiary Medical Center in the Philippines

Jo-Celine Leong; Paul Vincent Opinaldo; Roy Allan Dominique Torcuator (Quezon City, Philippines)

S_F

2136. Complications of DBS Generator replacement surgeries: optimizing individualized treatment options

William F. Young, MD, FAANS; Samuel Stegelmann, BS; Fen-Lei Chang, MD; William Young, MD (Fort Wayne, IN)

S_F

2140. Cyberknife Radiosurgery Treatment Of Trigeminal Neuralgia: A Single Institution Examination With Long Term Follow-Up

Eric Chalif; Khashayar Mozaffari; Donald McRae, PhD; Nadim Nasr, MD; Robert Hong, MD; Jonathan Sherman (Washington, DC)

S_F

2142. Deep Brain Stimulation of the Cuneiform Nucleus for Levodopa-resistant Freezing of Gait in Parkinson’s Disease: Study Design and Rationale

Stephano Chang, MD; Iahn Cajigas, MD, PhD; James Guest, MD, PhD; Brian Noga, PhD; Corneliu Luca, MD, PhD; Jonathan Jagid, MD (Vancouver, Canada)

S_F

2146. Electrocorticographic Measurement In A Pediatric Response Inhibition Task

Chao-Hung Kuo, MD; Kaitlyn Casimo; Kelly Collins; Jing Wu; You-Yin Chen; Kurt Weaver; Jeffrey Ojemann (Taipei, Taiwan)

S_F

2148. Endoscopic Third Ventriculostomy- Role of Image Guidance in Reducing Complications

Sameer Irfan (Karachi Sindh, Pakistan)

S_F

2150. Exploring the Role of a Common Genetic Variant in Parkinson’s Disease Pathogenesis

Rebekah Langston; Aleksandra Beilina, PhD; Mark Cookson, PhD (Washington, DC)

S_F

2151. Extrapial Resection of the Hippocampus in Anterior Temporal Lobectomy Surgery

Helweh Thib Hussein; Vasileios Kokkinos, PhD; Nathaniel Sisterson, BA; R.Mark Richardson, MD, PhD (boston, MA)

S_F

2152. FIBER TRACT ANATOMY OF THE HYPOTHALAMUS

PELİN kuzucu; PELİN KUZUCU; PINAR ÇELTİKÇİ; EMRAH ÇELTİKÇİ; AHMET MEMDUH KAYMAZ; AHMET AKBAŞ; SERHAT BAYDIN; M.ŞAKİR EKŞİ; M.NECMETTİN PAMİR; ABUZER GÜNGÖR (ANKARA, Turkey)

S_F

2155. Gamma-Band Modulation in the Human Amygdala during Reaching Movements

Angad Gogia; Roberto Martin del Campo-Vera, PhD; Kuang-Hsuan Chen, PhD; Rinu Sebastian, MS; Daniel Kramer, MD; Morgan Lee, BS; Terrance Peng; Ali Tafreshi, BA; Michael Barbaro; Charles Liu, MD, PhD; Spencer Kellis, PhD; Brian Lee, MD, PhD (Irvine, CA)

S_F

2156. Habenula Deep Brain Stimulation in Bipolar Disorder and Comorbid Addictive Disorders: A Case Report

ZHENGYU LIN; YINGYING ZHANG; CHENCHENG ZHANG; DIANYOU LI; BOMIN SUN (Shanghai, China)

S_F

2160. IDH1-Mutated Gliomas Induce Epileptogenesis Through Alterations in Neuronal Metabolism

Armin Mortazavi; Armin Mortazavi, BS; Islam Fayed, MD; Alexander Ksendzovsky, MD; Muzna Bachani, BS; Stuart Walbridge, BS; Joseph Steiner, PhD; John Heiss, MD; Chun Zhang Yang, PhD; Kareem Zaghloul, MD, PhD (Washington, DC)

S_F

2161. Identification Of The Epileptogenic Zone From Intracranial Electrocorticography With A Novel Network Fragility Algorithm In Patients With Temporal-Lobe Epilepsy

Gregory Damian Brusko; Iahn Cajigas, MD, PhD; Angel Claudio, MD; Adam Li, BS; Sridevi Sarma, PhD; Andres Kanner, MD; Jonathan Jagid, MD (Miami, FL)

S_F

2164. Laser Interstitial Thermal Therapy for Radiation Necrosis and Metastatic Disease of the Cerebellum

James Tanner McMahon; James Malcolm, MD, PhD; Jon Willie, MD, PhD (Atlanta, GA)

S_F

2165. Laterality of adverse speech effects with subthalamic versus ventrointermediate deep brain stimulation implantation

Galal A. Elsayed, MD; Andrew Romeo, MD; Gustavo Chagoya, MD; Joshua Bernstock, MD; Nidal Omar, MD; Jessica Bentley, MD; Harrison Walker, MD; Barton Guthrie, MD (Birmingham, AL)

S_F

2167. Local Control with Stereotactic Radiosurgery After Resection of Spinal Metastases: An Analysis of Single Center Experience With 70 Patients

Elie Massaad; Muhamed Hadzipasic, MD, PhD; Ganesh Shankar, MD, PhD; Kevin Oh, MD; John Shin, MD (Boston, MA)

S_F

2171. Management of Deep Brain Stimulator Infections.

Nazih Moufarrij, MD, FAANS (Wichita, KS)

S_F

2172. Meta-analysis and Meta-regression of Deep Brain Stimulation for Depression

Frederick Luke Hitti, MD; Andrew Yang, MD; Mario Cristancho, MD; Gordon Baltuch, MD, PhD (Philadelphia, PA)

S_F

2176. Neuropsychological Outcomes after Resective Surgery for Treatment Refractory Epilepsy

Jordan Lam; Runi Tanna, BS; Lauren Navarro, BS; Darrin Lee, MD, PhD (Los Angeles, CA)

S_F

2178. Novel Mechanisms To Explain Increased Leukocyte Zinc Finger Gene Expression In Postoperative Seizure Free Patients Following Stereotactic Laser Amygdalohippocampectomy

Chris Vance; Martin Weinand, MD, FACS (Tucson, AZ)

S_F

2183. Perceptions of Brain Surgery Invasiveness in a Cohort of Patients with Early-to-Moderate Parkinson’s Disease – A Pilot Study

Somnath Das; Sunidhi Ramesh; Lohit Velagapudi; Michael Baldassari; Mohammad Rasool; Julie Barbera; Samantha Katz; Jeffrey Ratliff, MD; Daniel Kremens, MD; Caio Matias, MD; Tsao-Wei Liang, MD; Chengyuan Wu, MD (Philadelphia, PA)

S_F

2184. Pilot Study of Surgical Autonomy Program (SAP) for Evaluation of Resident Performance of Epilepsy Surgery

Andrew Benjamin Cutler, MD; Alexander Suarez, MD; Charis Spears; Sarah Hodges; Lefko Charalambous; Rajeev Dharmapurikar; Shivinand Lad; Michael Haglund (Durham, NC)

S_F

2185. Predicting Surgical Outcomes for Mesial Temporal Lobe Epilepsy Patients: a Novel Clinical Scoring System with Histopathologic and Electrophysiologic Correlation

Kristine Ravina; Aswathy Ammothumkandy, PhD; Melissa Mert, MS; Victoria Wolseley; Pen-Ning Yu; Theodore Berger, PhD; Carol Miller, MD; Robert Chow, MD, PhD; Christianne Heck, MD; Charles Liu, MD, PhD; Michael Bonaguidi, PhD; Jonathan Russin, MD (Los Angeles, CA)

S_F

2186. Presurgical Mapping Of The LGN And Visuotopic Organization Of The Primary Visual Cortex Using fMRI

Paige Ashley Campbell; John Collins, MD; Shasha Wu, MD, PhD; Sandra Rose, MD; Vernon Towle, PhD; James Tao, MD, PhD; Peter Warnke, MD; Naoum Issa, MD, PhD (Chicago, IL)

S_F

2189. Reoperation In Failed Epilepsy Surgery Using MEG, Neuronavigation And Intraoperative MR Imaging

Karl Roessler; Stefan Rampp, MD; Burkhardt Kasper, MD; Roland Coras; Ingmar Blumcke; Michael Buchfelder (Vienna, Austria)

S_F

2192. Selective Denervation of Bilateral Suboccipital and Unilateral Sternocleidomastoid Muscles for the Treatment of Severe Rotational Torticollis.

Zaid Aljuboori, MD; Haring Nauta, MD, PhD (Louisville, KY)

S_F

2193. Sex Differences In Parkinson Disease Pain Relief Following DBS

Julie G. Pilitsis, MD, PhD, FAANS; Olga Khazen, BS; Marisa DiMarzio, PhD; Vishad Sukul, MD; Jennifer Durphy, MD; Era Hanspal, MD; Eric Molho, MD (Albany, NY)

S_F

2194. Single-Stage Deep Brain Stimulator Placement For Movement Disorders

Arrin C. Brooks; Alastair Hoyt, MD (Huntington, WV)

S_F

2195. Skull-Base Vascular Anatomy Pertinent To Percutaneous Access To The Foramen Ovale For Treatment Of Trigeminal Neuralgia: A Cadaveric Study Of Latex-Injected Heads

Cletus Cheyuo, MD, PhD; Jesse Lawrence, MD; Ogaga Urhie, BSc; Matthew Zdilla; Robert Marsh, MD, PhD (Morgantown, WV)

S_F

2197. Stereotactic Navigation for the Placement of Ventriculoperitoneal Shunts in Shunt-Naïve Patients

Michael Chuwei Jin; Adela Wu, MD; Tej Azad, MD, MS; Austin Feng, BS; Laura Prolo, MD, PhD; Anand Veeravagu, MD; Gerald Grant, MD; John Ratliff, MD; Gordon Li, MD (Menlo Park, CA)

S_F

2199. Stereotactic Radiosurgery for Brain Metastases: Assessment of Initial Radiologic Response among Patients at St. Luke’s Medical Center – Global City, Philippines from January 2018 to October 2019

Maurice Villaflores Bayhon; Roy Allan Dominique Torcuator; Ibet Marie Sih; Manuel Mariano (Taguig City, Philippines)

S_F

2206. The World of Neurosurgery; An Early Episode of Transatlantic Steriotactic Teamwork!

John B. Harris, MD, FAANS(L), FACS (Pebble Beach, CA)

S_F

2212. Utilization of Stereoelectroencephalography Beyond Epilepsy: A Systematic Review

Tyler Scullen, MD; Nikhil Teja, MD; Seo Ho Song, BS; Chris Carr, MD; Mansour Mathkour, MD; Joseph Lockwood, MD; Darrin Lee, MD, PhD; Robert Dallapiazza, MD, PhD (New Orleans, LA)

S_F

2213. Utilization of a Visualization Software Tool for Deep Brain Stimulation Programming in a Subset of Subjects with Parkinson's Disease Who Participated in the INTREPID Randomized Clinical Trial

Roshini Jain; Lilly Chen, MD; Michele Tagliati, MD (Valencia, CA)

S_F

2214. Vagal Nerve Stimulator Malfunction with Change in Neck Position: Case Report and Literature Review

Vyacheslav Makler, DO; Erin D'Agostino, MD; David Bauer, MD (Lebanon, NH)

TRAUMA_CC

2218. A Neuro-centric Perspective on the Correlation between Hemoglobin Levels and Neurological Outcomes in Traumatic Brain Injury Patients, with Literature Review

Christopher R. Banerjee, MD; Vamsi Reddy; Dayton Grogan; Cole Giller (Augusta, GA)

TRAUMA_CC

2219. A Systematic Review Of Tissue Expander Use In Staged Calvarial Reconstruction

Roy Patrick Yu; Andrea Lo, BS; Anjali Raghuram, BA; Michael Cooper, MS; Holly Thompson; Charles Liu, MD, PhD; Alex Wong, MD (Los Angeles, CA)

TRAUMA_CC

2222. Age-Related Complications Following Shunt Insertion for Hydrocephalus

Shane Shahrestani; Alexander Ballatori, BA; Shane Shahrestani, MS; Xiao Chen, BA; Andy Ton, BS; Andrew Chan, MD; Gabriel Zada, MD, MS (Yorba Linda, CA)

TRAUMA_CC

2226. Anticoagulant Medication and Operative Subdural Hematomas: A Retrospective Cohort Study Evaluating Reoperation Rates

James H. Mooney, MD; Adeel Ilyas, MD; Sheela Vivekanandan, MD; Reginald Fong, MD; Bonita Agee, PhD; Mamerhi Okor, MD; Kristen Riley, MD; Sean Meiner, MD; Christoph Griessenauer, MD; Paul Foreman, MD (Birmingham, AL)

TRAUMA_CC

2228. Atlanto-Occipital Dissociation in the Setting of Relatively Normal Radiological Findings

Fotis Gregory Souslian, MD; Jillienne Touchette, PhD (Lakewood, CO)

TRAUMA_CC

2230. Case Report: Osteomesh Cranioplasty In A 20-Year Old Trauma Patient

Jonna De Sagun Maala; Jo-Celine Leong; Maurice Bayhon; Charlene Mercado; Roy Torcuator (Quezon City, Philippines)

TRAUMA_CC

2235. Comparison Of Nicardipine With Clevidipine In The Management Of Hypertension In Acute Cerebrovascular Disease

Breck Aaron Jones, MD (Springfield, IL)

TRAUMA_CC

2236. Complications Associated with Prone Positioning in Neurosurgery: Integrative Review

Josué da Silva Brito; Isadora Dias Lacerda; Marina Guarienti; Renata Ivanilde da Mata Borges; Fernanda França Albernaz; Nícollas Nunes Rabelo (Paracatu, Brazil)

TRAUMA_CC

2239. Decreased Rate of CSF Leaks After Skull Base Fractures in the 21st Century: A Two-Institution Experience

Brittany Stopa; Oscar Leyva; Cierra Harper; Kyla Truman; Carleton Corrales, MD; Timothy Smith; William Gormley (Boston, MA)

TRAUMA_CC

2240. Decreasing Time To Ventriculostomy Placement In The Emergency Room Via Process Map Analysis And Implementation Of EVD Supply Cart

Michael Alexander Silva, MD; Iahn Cajigas, MD, PhD; Margaret Knudsen, BS; Anil Mahavadi, BS; Alexander Giner, RN; June Ellis, RN; Arlene Cameron, RN; Carlos Quirós Núñez, MD; Yvonne Diaz, MD; Marie Sosa, MD; Millicent Wynter, RN; Ricardo Komotar, MD (Miami, FL)

TRAUMA_CC

2241. Development of Machine Learning Algorithms for Prediction of In-Hospital Mortality Following Traumatic Brain Injuries

Mohamad Bydon, MD, FAANS ; Jad Zreik, BS; Anshit Goyal, MBBS; Archis Bhandarkar, BS; Mohammed Ali Alvi, MBBS (Rochester, MN)

TRAUMA_CC

2245. Early Decompressive Craniectomy as Management for Severe TBI in the Pediatric Population: A Comprehensive Literature Review

Yasmeen Elsawaf; Stephanie Anetsberger, MD; Samer Elbabaa

TRAUMA_CC

2247. Effect of Alcohol on TBI Outcomes: Current State of Literature

Thomas DiChiara; Alexander Schupper, MD; Ernest Barthélemy; Salazar Jones, MD; Zachary Hickman, MD (New York, NY)

TRAUMA_CC

2250. Effects of Traumatic Brain Injuries and Spinal Cord Injuries on Spine Surgery Outcomes

Peter Gust Passias; Katherine Pierce; Haddy Alas, BS; Avery Brown, BS; Cole Bortz, BA; Shaleen Vira, MD; Sara Naessig, BS; Burhan Janjua, MD; Bassel Diebo, MD; Waleed Ahmad, MS; Michael Gerling, MD (Brooklyn Heights, NY)

TRAUMA_CC

2253. Estimating the True Epidemiology of Traumatic Brain Injury in the United States: Comparison of Two National Databases

Brittany Stopa; Maya Harary, MD; Ray Jhun, MS; Arun Job, BA; Saef Izzy, MD; Timothy Smith; William Gormley (Boston, MA)

TRAUMA_CC

2256. Factors Associated with Presenting Neurologic Exam in Patients with Supratentorial Epidural Hematomas

Phillip A. Bonney, MD; Casey Jarvis, BA; Tatsuhiro Fujii, MD; Steven Giannotta, MD (Los Angeles, CA)

TRAUMA_CC

2259. Frailty and Spontaneous Intracerebral Hemorrhage with Intraventricular Hemorrhage: Does The Modified Frailty Index Predict Outcomes?

Michael G. Kim, MD; Matthew Mcintyre, BA; Ida Azizkhanian, MS; Benjamin Epstein, BS; Abhiniti Mittal, BS; Nam Lee, MD; Chirag Gandhi, MD; Justin Santarelli, MD; Meic Schmidt, MD, MBA; Christian Bowers, MD; Fawaz Al-Mufti, MD (Valhalla, NY)

TRAUMA_CC

2262. Impact of Sarcopenia on Treatment Outcomes for Patients with C1 or C2 fractures

Mohamad Bydon, MD, FAANS ; Shyam Kurian, BS; Yagiz Yolcu, MD; Mohammed Alvi, MBBS (Rochester, MN)

TRAUMA_CC

2269. Intracranial Hypertension Following Gunshot Wound to the Torcula: Case Report and Literature Review

Ghani Haider; Ghani Haider, MD; Oluwaseun Omofoye, MD, MS; James Holsapple, MD (Boston, MA)

TRAUMA_CC

2270. Intracranial pressure fluctuations in neurosurgical patients undergoing renal replacement therapy: systematic review and pooled analysis

Ralph Rahme, MD; Andrew Parsons; Chiara Sanscrainte; Augusto Leone (Bronx, NY)

TRAUMA_CC

2273. Lumberperitoneal Shunt Surgery With Initial Valve Setting Virtual Off Mode For iNPH Patients

Takashi Kawahara; Masamichi Atsuchi; Kiyoshi Takagi; Koji Yoshimoto (Kagoshima, Japan)

TRAUMA_CC

2275. Mild Traumatic Brain Injury Causes Persistent Disruption Of The Blood-Brain Barrier With Cognitive Consequences In Rats With Chronic Arterial Hypertension

Andras Czigler; Nikolett Szarka; Luca Toth; Zoltan Kellermayer; Zoltan Ungvari; Krisztina Amrein; Endre Czeiter; Zsolt Bali; Istvan Hernadi; Akos Koller; Andras Buki; Peter Toth (Pécs, Hungary)

TRAUMA_CC

2276. Mortality Prediction Model for Traumatic Intracranial Hemorrhage: A National Trauma Data Bank Study

Siddharth Marthi; Esther Wu (Providence, RI)

TRAUMA_CC

2278. Mortality and Poor Short-Term Outcome Rates after Severe Traumatic Brain Injury in Patients over 40

Phillip A. Bonney, MD; Zabiullah Bajouri; Carlos Castellanos; Frank Attenello, MD; Steven Giannotta, MD (Los Angeles, CA)

TRAUMA_CC

2279. Multidisciplinary Treatment of Penetrating Craniofacial Injuries

Hamad Issam Farhat, MD, FAANS ; Michael Young, DO; Matthew Putty, DO; Ryan Johnson, DO; Megan Finneran, DO; Keith Schaible, MD (Oak Lawn, IL)

TRAUMA_CC

2281. Non-Invasive Qualitative Evaluation of Intracranial Pressure in Chiari Malformation Patients – Pilot Project

Eloy Rusafa Neto; Robson Amorim; Wellingson Paiva (São Paulo, Brazil)

TRAUMA_CC

2282. Noninvasive Access to Cerebral Compliance Defining Management of Hydrocephalus after Severe TBI

Samia Yasin Wayhs; Wellingson Paiva, MD, PhD; Cintya Hayashi, MSc; Gustavo Frigieri, PhD; Sergio Brasil, MD, MSc; Bruno Tomazini, MD; Paulo Tierno, MD; Fabio Machado, MD, PhD (Sao Paulo, Brazil)

TRAUMA_CC

2283. Obliteration of the lumbar spinal canal by a centrally lodged, extradural bullet in a patient with minimal neurologic compromise

Ralph Rahme, MD; Rebecca Zanzerkia; Augusto Leone (Bronx, NY)

TRAUMA_CC

2284. Opportunities In Global Neurosurgery: A Mixed Methods Needs Assessment Of Traumatic Brain Injury Care In A Low/Middle Income Country Setting

Ariana Simone Barkley, MD; Laura Spece, MD, MS; Lia Golden; Robert Bonow, MD; Ali Ravanpay, MD, PhD; Richard Ellenbogen, MD, FACS; Phearum Huoy, MD; Try Thy, MD; Seang Sothea; Sopheak Pak; James Logerfo, MD, MPH; Abhijit Lele (Seattle, WA)

TRAUMA_CC

2286. Pharmacologic Venous Thromboembolic Prophylaxis In High-Risk Traumatic Brain Injury

Carlton Watson; Alexander Schupper, MD; Ernest Barthélemy; James Cescon; G. Athena Oliver, MS; Salazar Jones, MD; Zachary Hickman, MD (New York, NY)

TRAUMA_CC

2287. Positioning Methods and Functional Outcomes of Decompressive Hemicraniectomy

Courtney Pendleton, MD; Rachel Cain, BS; Lohit Velagapudi, BS; Jack Jallo, MD, PhD (Philadelphia, PA)

TRAUMA_CC

2288. Post-operative medical complications after neurological surgery and its avoidance

Lekshmi Peringassery Sateesh; Vinayak Narayan, MD; Anil Nanda (Columbus, OH)

TRAUMA_CC

2292. Pseudo-Cerebrospinal Fluid Leaks Of The Anterior Skull Base: Algorithm for Diagnosis and Management

Felipe Andres Constanzo Navarrete, MBBS; Jaime Pinto, MD, MBA; Sahba Sedaghat, MD; Thomas Schmidt, MD (Concepcion, Chile)

TRAUMA_CC

2293. Pseudo-Subarachnoid Hemorrhage: Systematic Review of Literature

Andrew Platt, MD; Faten El Ammar; Jared Davis; Edwin Ramos; Fernando Goldenberg (Chicago, IL)

TRAUMA_CC

2295. Pyogenic Brain Abscess with Spontaneous Intraventricular Rupture

Ana Guadalupe Rodriguez Armendariz; Maria Gaitan-Palau, MD; Abril Salguero-Cabañas; Leticia Olguin-Ramirez; Jose Figueroa-Sanchez, MD, MBA (Monterrey, Mexico)

TRAUMA_CC

2296. Rate And Risk Factors Of Early Ventriculoperitoneal Shunt Revision: A 5-year Retrospective Analysis Of A Referral Center

Mojtaba Dayyani; Saba Ahmadvand, MD; Mojtaba Dayyani, MD; Hamid Etemadrezaie, MD; Ahmad Ghorbanpour, MD; Reyhaneh Zarei; Ali Shahriyari; Maryam Emadzadeh, MD; Babak Ganjeifar, MD; Samira Zabihyan, MD (Houston, TX)

TRAUMA_CC

2300. Risk Factors for Heterotopic Ossification Development after Spinal Cord Injury: A Systematic Review and Meta-Analysis

Mohamad Bydon, MD, FAANS ; Yagiz Yolcu, MD; Waseem Wahood, MS; Anshit Goyal, MBBS; Mohammed Alvi, MBBS; Ronald Reeves, MD; Wenchun Qu (Rochester, MN)

TRAUMA_CC

2304. Serial Expression of Chemokines in Chronic Subdural Hematoma Fluids after Trepanation Surgery

Koji Osuka, MD; Kenichiro Iwami, MD, PhD; Shigeru Miyachi, MD, PhD (Kuwana, Japan)

TRAUMA_CC

2308. Sinking bullet syndrome: a unique case of transhemispheric migration

Ralph Rahme, MD; Augusto Leone; Andrew Parsons; Sean Willis, DO; Stephanie Moawad; Rebecca Zanzerkia (Bronx, NY)

TRAUMA_CC

2309. Spinal Level and Cord Involvement Predict Sepsis Following Vertebral Fracture Repair for Traumatic Spinal Injury

Blake Marie Hauser; Mark Zaki, BS, BA; Saksham Gupta, MD; Edward Xu, BA; Melissa Chua, MD; Joshua Bernstock, MD, PhD; Ayaz Khawaja, MD; Timothy Smith; Hasan Zaidi, MD (Boston, MA)

TRAUMA_CC

2311. Survey to Examine Functional Recovery for Patients Who Underwent Surgery for a Chronic Subdural Hematoma

Alexandra Richards, DNP; Matthew Neal, MD; Sarah Merrill; Daniel Khan (Phoenix, AZ)

TRAUMA_CC

2312. Systemic Viral Infection Prevents Meningeal Vascular Remodeling and Repair Following Mild Traumatic Brain Injury

Panagiotis Mastorakos, MD PhD; Dorian McGavern (Bethesda, MD)

TRAUMA_CC

2313. TBI Outcomes For Direct Versus Delayed Admission To An Urban Level I Trauma Center

Sawyer Ricker; Ernest Barthélemy; Alexander Schupper, MD; Adedolapo Ojo; Jueria Rahman; Salazar Jones, MD; Zackary Hickman, MD (Canyon Lake, TX)

TRAUMA_CC

2315. The Current State Of Beta-Blocker Use To Improve Outcome After Acute Traumatic Brain Injury

Carlton Watson; Alexander Schupper, MD; Ernest Barthélemy; Kate Twelker, MD; Salazar Jones, MD; Zachary Hickman, MD (New York, NY)

TRAUMA_CC

2316. The Effect of Acute Alcohol Intoxication on Outcome Following Traumatic Brain Injury

Alexander J. Schupper, MD; Thomas DiChiara; Abhiraj Bhimani, MD; Ernest Barthélemy; Salazar Jones, MD; Zachary Hickman, MD (New York, NY)

TRAUMA_CC

2317. The Effects of Cortical and Hippocampal Spreading Depolarizations on Glutamatergic Signaling Proteins

Kinsey Barhorst; Yara Alfawares; Jennifer McGuire, PhD; Jed Hartings, PhD; Laura Ngwenya, MD, PhD (Dayton, OH)

TRAUMA_CC

2318. The Implication of Frailty and Subdural Hematoma Type on Elderly Patient Pre-Procedural Risk Assessment for the Subdural Evacuating Port System

Alis Dicpinigaitis; Alis Dicpinigaitis, BA; Michael Kim, MD; Chirag Gandhi, MD; Tolga Sursal, MD; Meic Schmidt, MD, MBA; Chad Cole, MD; Fawaz Al-Mufti, MD; Christian Bowers, MD (Armonk, NY)

TRAUMA_CC

2319. The July Effect and its Impact on External Ventricular Drain Placement by Neurosurgical Trainees

Ryan Joseph Austerman, MD; Rajendran Sibi, MD; Gavin Britz, MD (Houston, TX)

TRAUMA_CC

2321. The Novel Use Of SecurAcath® For Securing External Ventricular Drains In Adults: A Pilot Study

James MW Robins; Asim Sheikh; Karl Ward, BSc; Ryan Mathew (Leeds, United Kingdom)

TRAUMA_CC

2324. Through-and-through stab wound of the cervical spine with retained weapon but no neurologic repercussions: an exceptionally rare injury and the case for direct foreign body withdrawal

Ralph Rahme, MD; Andrew Parsons; Rose Fluss, BA; Sean Willis, DO (Bronx, NY)

TRAUMA_CC

2325. Time Between Craniectomy and Cranioplasty is Significantly Associated with Postoperative Complications

Gic Fiestan; Joseph Linzey, MD, MS; Sudharsan Srinivasan, MSE; Gregory Palmateer, BA; Aditya Pandey, MD (Ann Arbor, MI)

TRAUMA_CC

2327. Towards Early Prediction of Vasospasm and Death Following Severe Traumatic Brain Injury

Rima Sestokas Rindler, MD; Vivek Khatri; LaShondra DeYampert, BS; Sheila Eshraghi, MD; Pavlos Texakalidis, MD; Seth Schobel, PhD; Eric Elster, MD; Arnaud Belard, MBA; Jonathan Grossberg, MD; Nicholas Boulis, MD (Atlanta, GA)

TRAUMA_CC

2329. Tranexamic Acid in Neurosurgery a Controverse Indication: Sistematic Review

Josué da Silva Brito; José Luiz de Faria; Louise Teixeira Costa e Silva; Christiano Tadeu Sanches Mattos Kilesse; Nícollas Nunes Rabelo (Paracatu, Brazil)

TRAUMA_CC

2330. Traumatic Spinal Cord Injury: Prevalence, Incidence, Survival and Mortality in Olmsted County, Minnesota, 1995-2017

Mohamad Bydon, MD, FAANS ; Yagiz Yolcu, MD; Jad Zreik, BS; Atiq Bhatti, MD; F.M. Moinuddin, MBBS (Rochester, MN)

TRAUMA_CC

2339. Why 6-month Outcome of Recent Cohort of Mass Evacuation in Severely Brain Injuries Comparing Two Decades Was Not Improved as other Severe TBI Treatments? A Single Center Series of 1082 Patients With IMPACT Prognostic Benchmark

Leon Levi, MD, IFAANS; Leon Levi; Hanny Bahouth, MD; Marius Constantinescu, MD; Eugenia Mahamid; Vladimir Shapira, MD; Gill Sviri, MD (Haifa, Israel)

TUMOR

2345. A Diffuse Leptomeningeal Glioneural Tumor (DLGNT) Case Making Hydrocephalus And Poliradicupopathy

Helder Picarelli, MD, IFAANS; Thales Nepomuceno, MD; Renan Ribeiro, MD; Vitor Yamaki, MD; Manoel Teixeira, PhD (Sao Paulo, Brazil)

TUMOR

2347. A Modified Far-lateral Approach For Resection Of Dumbbell-like Jugular Foramen Schwannomas

Xiangyu Wang; Qing Liu, MD; Wenyong Long; Jian Yuan (Malden, MA)

TUMOR

2349. A National Review Of Outcomes Following Microscopic Versus Endoscopic Transsphenoidal Excision Of Pituitary Adenomas

Shane Shahrestani; Shane Shahrestani, MS; Andy Ton, BS; Xiao Chen, BA; Alexander Ballatori, BA; Gabriel Zada, MD, MS (Yorba Linda, CA)

TUMOR

2350. A Neural Crest Cell Subpopulation Underlies Intratumor Heterogeneity In Meningioma

Stephen T. Magill, MD, PhD; Harish Vasudevan, MD, PhD; Kyounghee Seo; S. John Liu, MD, PhD; Stephanie Hilz, PhD; Javier Villanueva-Meyer, MD; Abrar Choudhury; Daniel Lim, MD, PhD; Mitchel Berger, MD; Michael McDermott, MD; Joseph Costello, PhD; David Raleigh, MD, PhD (San Francisco, CA)

TUMOR

2353. A Randomized Controlled Trial Of A Pituitary Adenoma-Specific Educational Website

Michael D. J. Cusimano, MD, PhD, FAANS, FRCS; Stanley Zhang; Rowan Jing; Martine Andrews; John Lee; Irene Vanek, MD; Jeannette Goguen (Toronto, Canada)

TUMOR

2362. Adjuvant Therapy And Overall Survival In Pediatric Patients With Anaplastic Ependymoma

Victor S Lopez Rivera; Antonio Dono, MD; Sunil Sheth, MD; Leomar Ballester, MD, PhD; Yoshua Esquenazi, MD (HOUSTON, TX)

TUMOR

2363. Ajustment Of Visual Functional Network After Chiasmatic Compression In Pituitary Adenoma Patients

Weiming Zhong; Zhifeng Kou, PhD (Detroit, MI)

TUMOR

2366. An Endoscopic Intraventricular Approach in Glioblastoma: A Case Report of an Adult Filipino with Periventricular Mass

Jonna De Sagun Maala; Erickson Torio; Rhoderick Casis; Roy Allan Torcuator; Ibet Sih; Carlo Barredo; Maurice Bayhon; Joceline Leong; Charlene Mercado (Quezon City, Philippines)

TUMOR

2367. An Extensive Anatomosurgical Analysis of Exposure of the Upper Petroclival Region in Different Surgical Approaches

Antonio Bernardo, MD; Filippo Santonio; Vito Stifano; Philip Stieg; Alexander Evins (New York, NY)

TUMOR

2368. An Institutional Review Of Endoscopic-Assisted Supracerebellar Infratentorial Surgery Of The Pineal Region

Shane Shahrestani; Shane Shahrestani, MS; Vignesh Ravi, BS; Benjamin Strickland, MD; Martin Rutkowski; Gabriel Zada, MD, MS (Yorba Linda, CA)

TUMOR

2373. Anaplastic Meningioma With Intratumoral Abscess

Juan Carrizales-Rodriguez, MD; Francisco David Cedeño, MD; Rafael Mendizabal-Guerra, MD (San Luis Potosi, Mexico)

TUMOR

2379. Applicability of conventional sub-occipital approach for resection of foramen magnum meningiomas: Early experience

Mohamed El Nokaly, MD; Mohamed Adawi, MD, PhD; Mohamed Elnokaly, MD, PhD; Mahmoud Wahdan, MD, PhD (Pittsburgh, PA)

TUMOR

2380. Applications of a Hybrid Augmented Reality Neuro-Navigation System During Endoscopic Endonasal Transsphenoidal Pituitary Surgery

Robin Du; Andrew Brunswick, MD; Martin Rutkowski, MD; Ben Strickland, MD; Gabriel Zada, MD (Alhambra, CA)

TUMOR

2382. Assessing the Efficacy of Repeat Resections for Glioblastoma

David Basem Rayed Botros; Adham Khalafallah, MD; Debraj Mukherjee, MD, MPH (Baltimore, MD)

TUMOR

2383. Automated Frameless Single-Isocenter VMAT Radiosurgery for Multiple Brain Metastases is Safe, Effective, and Well-Tolerated – Outcomes in Initial 107 Patients

Evan Thomas; Matthew Brown, BS; Markus Bredel, MD, PhD; Richard Popple, PhD; Kristen Riley, MD; John Fiveash, MD; Elizabeth Covington, PhD (Birmingham, AL)

TUMOR

2384. Awake Craniotomy For Tumor Without Invasive Arterial Blood Pressure Monitoring

Jeffrey Evan Florman, MD, FAANS; Anand Rughani, MD; Russell Kizor, MD; Gina Pardi; Eric Brown, MD (Scarborough, ME)

TUMOR

2390. Bilateral Vestibular Schwannomas in a Patient with Ring Chromosome 22: Case Report and Review of the Literature

Eric S. Nussbaum, MD, FAANS, FACS; Penelope Nussbaum; puja patel; chris hilton; leslie nussbaum (Minneapolis, MN)

TUMOR

2393. Can the Cerebellum do all that? – Cerebellar Cognitive Affective Syndrome following Surgery for Posterior Fossa Meningioma

Jigish Ruparelia; Jaskaran Gosal, MCh; Mayank Garg, MCh; Suryarayanan Bhaskar, MCh; Deepak Jha, MCh (Jodhpur, India)

TUMOR

2394. Case Report: Brain sag causing kinked basilar artery

Brannan E. O'Neill, MD; Aclan Dogan; Brannan O'Neill; Maryam Shahin; Olabisi Sanusi (Portland, OR)

TUMOR

2396. Cerebral Tubular Retractor Systems: A Comparison And Review Of The Literature

Nikolas Echeverry; Samuel Mansour, BS; Gerard MacKinnon, BS; Jude Jaraki; Stephen Shapiro, BS; Koushik Mantripragada, BS; Brian Snelling, MD (Delray Beach, FL)

TUMOR

2399. Characterizing Intratumoral Heterogeneity in Post-Treatment Recurrent Glioblastoma via Clustering Analysis of Quantitative Histopathology

Michael G Argenziano; Deborah Boyett, BA; Jack Grinband, PhD; Akshay Save, BS; Guy McKhann, MD; Michael Sisti, MD; Peter Canoll, MD, PhD; Jeffrey Bruce, MD (Closter, NJ)

TUMOR

2400. Chordoid Glioma Of Third Ventricle: A Case Report And A Review Of Current Literature

Lucas Piason de Freitas Martins; Lucas Martins, MBBS; Vitor Yamaki, MD; Renato Junior, MBBS; Davi Solla, MD; Iuri Neville, PhD (Sallvador, Brazil)

TUMOR

2406. Clinical Outcomes Following Laser Interstitial Thermal Therapy For Brain Metastases Failing Radiosurgery May Not Differ by Primary Tumor

Alexa Semonche; Long Di, BS; Ashish Shah, MD; Daniel Eichberg, MD; Ricardo Komotar, MD; Michael Ivan (Somerset, NJ)

TUMOR

2408. Co-administration of Chemotherapy Agent Bis-chloroethylurea May Enhance 5-Aminolevulinic Acid Photodynamic Therapy In Patient-Derived Glioma Stem Cells

Alexa Semonche; Tatiana Slepak, MS; Ana Pascoini, BS; Anna Jermakowicz, BS; Daniel Eichberg, MD; Ashish Shah, MD; Michael Ivan (Somerset, NJ)

TUMOR

2409. Cognitive Profiles And Dynamics In Diffuse Glioma Using A Novel Tablet App

Michael Hart, MD; Mallory Owen, BA; Rafael Romero-Garcia, PhD; Yaara Erez, PhD; Robert Morris, MA; Stephen Price, PhD; John Suckling, PhD; Thomas Santarius, PhD (Cambridge, United Kingdom)

TUMOR

2410. Collision Tumor: Case Report And Literature Review

Helder Picarelli, MD, IFAANS; Helder Picarelli, MD; Fabiana Hirata, MD; Huylmer Chaves, MD; Luiz de Lima, MD (Sao Paulo, Brazil)

TUMOR

2411. Combination Therapy with Captopril and Temozolomide Inhibits Matrix Metalloproteinase-2, Reduces Cell Migration, and Extends Survival In An Intracranial Gliosarcoma Model

Alexander Perdomo-Pantoja, MD; Leon Pinheiro, MD; Sakibul Huq, BS; Joshua Casaos, MD; Iddo Paldor, MD; Veronica Vigilar, MD; Antonella Mangraviti, MD; Yuan Wang, MD; Henry Brem, MD; Betty Tyler, BA (Baltimore, MD)

TUMOR

2412. Combined inhibition of nicotinamide phosphoribosyltransferase (NAMPT) and poly (ADP-ribose) polymerase (PARP) impairs glioblastoma cell growth

Lee S. Hwang, MD; Lee Hwang, MD (Cleveland Heights, OH)

TUMOR

2413. Comparative Study of the Cancer Treatment Potential of Tumor-Treating Fields and Cold Atmospheric Plasma Treatment

Andrea Klein; Xiaoliang Yao, BS; Isaac Goldstein; Li Lin, BS; Jonathan Sherman, MD; Michael Keidar, PhD (Washington, DC)

TUMOR

2418. Comparison of the deterministic and probabilisitic approach in nrTMS-based DTI fiber tracking in patients with language-eloquent tumors

Chiara Negwer; Chiara Negwer; Ioana-Sabina Rautu; Sebastian Ille; Bernhard Meyer; Sandro Krieg (Munich, Germany)

TUMOR

2421. Composition of Meningioma Microenvironment Associates With Chromosome 22 Loss And Distinct Tumor Biology.

Zsolt Zador, MD, PhD; Zsolt Zador; Alexander Landry; Michael Balas; Saira Ali, MD; Julian Spears (Manchester, United Kingdom)

TUMOR

2424. Convection Enhanced Delivery in Diffuse Intrinsic Pontine Glioma: Neurosurgical Considerations in the Pediatric Population

Yasmeen Elsawaf; Stephanie Anetsberger, MD; Samer Elbabaa

TUMOR

2426. Correlation between Short-Interval Intracortical Inhibition and postoperative muscle strength after rolandic brain tumor surgery

Alexandra Santos; Iuri Neville, MD, PhD; Cesar Almeida, MD; Cíntia Hayashi, MS; Davi Solla, MD; Ricardo Galhardoni, PhD; Daniel Andrade, MD, PhD; Andre Brunoni, MD, PhD; Manoel Teixeira, MD, PhD; Wellingson Paiva, MD, PhD (Sao Paulo, Brazil)

TUMOR

2429. Craniopharyngioma Outcomes And Associations As A Function Of Patient Age

Shane Shahrestani; Shane Shahrestani, MS; Xiao Chen, BA; Alexander Ballatori, BA; Andy Ton, BS; Gabriel Zada, MD, MS (Yorba Linda, CA)

TUMOR

2433. Deceptive Radiographic Features on Surveillance Imaging of Intraneural Metastatic Deposits In Metastatic Renal Cell Cancer

Lena Mary Houlihan; Conor Ledingham, MD; Michael O' Sullivan, MD (Phoenix, AZ)

TUMOR

2438. Detection of Relevant Gene Mutations in Glioma Using Plasma Cell Free DNA

Michael Ita; Jiang Huai Wang; Yvonne Nolan; André Toulouse; Eoin Minnock, MD; Chris Lim; Michael O'Sullivan; George Kaar; Henry Paul Redmond; UCC TRAP Research Program (Cork City, Ireland)

TUMOR

2439. Determining the Role of Surgery in Diagnosis and Treatment of Primary CNS Lymphoma

Michael Baldassari; Tyler Fox, BS; Donald Ye, MD; Lohit Velagapudi, BS; Adam Leibold, MD; Karim Hafazalla, MD; Christopher Farrell, MD; James Evans, MD; David Andrews, MD; Kevin Judy, MD (Philadelphia, PA)

TUMOR

2440. Deterministic Clinical Tractography Is Highly Accurate In The Vicinity of Eloquent Gliomas: A Study by IONM and Elastic Fusion Based On Intraoperative MRI Data

Sebastian Ille, MD; Sebastian Ille, MD; Axel Schroeder; Arthur Wagner, MD; Kornelia Kreiser, MD; Bernhard Meyer, MD; Sandro Krieg, MD (Munich, Germany)

TUMOR

2443. Development And Validation Of A Meningioma-Specific Quality Of Life Questionnaire

Ami Baba; Melissa McCradden, PhD; Ashirbani Saha, PhD; Farhad Pirouzmand, MD, PhD, FRCSC; Kim Edelstein; Gelareh Zadeh, MD, PhD, FRCSC; Michael Cusimano (Toronto, Canada)

TUMOR

2445. Development and Pilot Implementation of a Brain Tumor Registry: Lessons Learned Thus Far

Claudia Davidson (PA), Jacquelyn Pennings, Kristin Archer, Inamullah Khan, Silky Chotai, Anshit Goyal, Mohammed Alvi, Jack Knightly, Yaron Moshel, Anthony Asher, Steve Kalkanis, Carl Heilman, Julian Wu, Marie Roguski, Vincent DiNapoli, Hugh Moulding, Cheerag Upadhyaya, Debraj Mukherjee, Mohamad Bydon (Washington, DC)

TUMOR

2448. Dexamethasone Treatment Increases Immunosuppressive Myeloid Populations Within Immunocompetent Models Of GBM

Balint Otvos, MD; Defne Bayik, PhD; Tyler Alban; Daniel Silver, PhD; Matthew Grabowski, MD; Adam Lauko; Gene Barnett, MD; Justin Lathia, PhD (Cleveland, OH)

TUMOR

2453. Dosimetric Evaluation of 2-staged Stereotactic Radiosurgery for the Treatment of Large Brain Metastases

Elizabeth Ginalis; Taoran Cui, PhD; Ke Nie, PhD; Anupama Chundury, MD; Joseph Weiner, MD; Shabbar Danish, MD (New Brunswick, NJ)

TUMOR

2454. Dural Sealants Do Not Reduce Postoperative Cerebrospinal Fluid Leaks After Endoscopic Endonasal Skull Base Surgery

Michael M. McDowell, MD; Rachel Jacobs; Benita Valappil, MPH; Eric Wang; Carl Snyderman; Paul Gardner, MD (Pittsburgh, PA)

TUMOR

2459. Effect of Anatomic Segment Involvement on Functional Outcomes of Stereotactic Radiosurgery for Facial Nerve Schwannomas: An International Co-operative Study

Gautam Unmeel Mehta, MD; Gregory Lekovic; William Slattery; Derald Brackmann; Hideyuki Kano; Douglas Kondziolka; David Mathieu; Wael Reda; Gene Barnett; L Lunsford; Jason Sheehan (Los Angeles, CA)

TUMOR

2460. Efficacy of Virtual Consultations using 3D simulation for Pre-Operative Patient Education

Holly Oemke; Kenneth Brophy; Leslie Schlachter; Anthony Costa; Joshua Bederson (New York, NY)

TUMOR

2464. Endoscopic Endonasal and Sopraorbital Keyhole Surgery for Management of Anterior Skull Base Meningiomas

Alessandro Di Rienzo; Fabrizio Salvinelli; Fabio Greco; Denis Aiudi; Maurizio Gladi; Gabriele Polonara; Maurizio Iacoangeli (Ancona, Italy)

TUMOR

2471. Epidermal Growth Factor and Substance P Share Common Signaling Pathways in U373 Glioblastoma Cells: Implications for Combination Therapy

Gustavo Chagoya Gazcon, MD; Gita Kwatra; Jaimie McKeel; Madan Kwatra, PhD (Birmingham, AL)

TUMOR

2472. Epidermoid Cyst Resection: A Descriptive Study Examining Preoperative Characteristics and Postoperative Outcomes

Michael Baldassari; Daniella Wong, BS; Donald Ye, MD; Lohit Velagapudi, BS; Karim Hafazalla, BS; Christopher Farrell, MD; James Evans, MD; David Andrews, MD; Kevin Judy, MD (Philadelphia, PA)

TUMOR

2474. Evaluation of PyRadiomic-Extracted Radiomic Features for Prediction of Genetic Markers of Lower Grade Glioma

Michael (Kai Yue) Xie; Ashirbani Saha; Michael Cusimano; Alireza Sadeghian, PhD (Toronto, Canada)

TUMOR

2475. Examining Differences in the Localization of Language Function Between Various Languages Using nrTMS and Subcortical Pathway Tractography

Sebastian Ille, MD; Corinna Boerner; Axel Schroeder, MD; Bernhard Meyer, MD; Sandro Krieg, MD; Sebastian Ille, MD (Munich, Germany)

TUMOR

2476. Expectations, Priorities and Risk Aversion: Patient-reported Data from a Spine Tumor Population

Elizabeth Howell; Meghan Price, BS; Jessica Goodwin; Tara Dalton, BS; Theresa Williamson, MD; George Bukenya; Brice Painter; Courtney Goodwin, MD, PhD (Durham, NC)

TUMOR

2477. Experience with Malignant Glioma Surgery Guided by Intraoperative Positron Emission Tomography (PET) Imaging

Alexey L. Krivoshapkin, MD, IFAANS; David Beylin; ALEXEY Gaytan; Gleb Sergeev; Evgeny Puzakin (Novosibirsk, Russian Federation)

TUMOR

2480. Extent of Resection of Epidermoid Tumors and Risk of Recurrence: Case Report and Meta-analysis

Brian Shear; Lan Jin, PhD; Yawei Zhang, MD, PhD; Wyatt David, MS; Elena Fomchenko, MD, PhD; E. Zeynep Erson-Omay, PhD; Anitta Huttner, MD; Robert Fulbright, MD; Jennifer Moliterno, MD (Mount Pleasant, MI)

TUMOR

2481. Extracalvarial Metastatic Renal Cell Carcinoma: Treatment Strategy And Review of Literature

Muhammad Burhan Ud Din Janjua, MD; Vibhav Bansal; Steven Hwang, MD (Rockford, IL)

TUMOR

2486. Feasibility, Sensitivity and Network Specificity of fMRI Language Lateralization for Epilepsy and Brain Tumor Surgery

Vasileios Kokkinos; Panagiotis Selviaridis; Ioannis Seimenis (Boston, MA)

TUMOR

2487. Fluorescence real-time kinetics of Protoporphyrin IX after 5-ALA administration in low-grade glioma

Eric Suero Molina; Sadahiro Kaneko; Walter Stummer (Münster, Germany)

TUMOR

2488. Foramen Magnum Meningiomas and Rapid Neurological Decline

Christian G. Zimmerman, MD, FAANS, FACS; Ondrej Choutka, MD; Mckenzie Malach, BS; Ariana Garabedian, BS (Boise, ID)

TUMOR

2493. Giant Extra-Axial Cerebellopontine Angle Ependymoma with Sub-Axial Cervical Extension: Infratentorial Ependymomas as the ‘Many-Faced God’ in the ‘Game of Neurosurgery’

Jigish Ruparelia; Jaskaran Gosal, MCh; Mayank Garg, MCh; Suryarayanan Bhaskar, MCh; Deepak Jha, MCh; Poonam Elhence, MD (Jodhpur, India)

TUMOR

2497. Glioblastoma Resection in Octogenarians and Beyond: Clinical Outcomes from a Single Institution

Michael Baldassari; Carrie Andrews, MD; Donald Ye, MD; Erica Cunningham, BS; Lohit Velagapudi, BS; Kabir Malkani, BS; Allison Doermann, BS; Christopher Farrell, MD; James Evans, MD; David Andrews, MD; Kevin Judy, MD (Philadelphia, PA)

TUMOR

2498. Glioblastomas Are Associated With Higher Resting Motor Threshold Ill/Healthy Hemisphere Ratio Than WHO Grade II-III Gliomas In Navigated Transcranial Magnetic Stimulation

Alexandra Santos; Iuri Neville, MD, PhD; Cesar Almeida, MD; Cíntia Hayashi, MS; Davi Solla, MD; Ricardo Galhardoni, PhD; Daniel Andrade, MD, PhD; Andre Brunoni, MD, PhD; Manoel Teixeira, MD, PhD; Wellingson Paiva, MD, PhD (Sao Paulo, Brazil)

TUMOR

2503. Headache Outcomes for Non-Hydrocephalic Pineal Cyst Patients: A Systematic Review and Metanalysis

Camille K Milton; Panayiotis Pelargos, MD; Ian Dunn, MD (OKC, OK)

TUMOR

2506. Hidden in Plain Sight: Challenges in Diagnosing Neoplastic Meningitis (NM)

Kimberly Anne Major; Christine Mau, MD; Michael Glantz, MD (Annville, PA)

TUMOR

2508. Higher-Dose Second Window Indocyanine-Green Provides Stronger Fluorescence and More Consistent Trans-Dura Visualization of Intracranial Metastases

Clare W. Teng; Steve Cho, BS; Emma De Ravin, BS; Yash Singh; Love Buch, BS; Steven Brem, MD; Sunil Singhal, MD; John Lee (Philadelphia, PA)

TUMOR

2510. IDH1 Mutation is Associated with Post-Operative Symptom Improvement in Glioblastoma

Lohit Velagapudi; Michael Baldassari, BA; Donald Ye, MD; Omaditya Khanna, MD; Erica Cunningham, BA; Kabir Malkani, BS; Allison Doermann, BS; Christopher Farrell, MD; James Evans, MD; David Andrews, MD; Kevin Judy, MD (Philadelphia, PA)