GregoryJZipfelMD

PubMed

• Non-invasive Auricular Vagus nerve stimulation for Subarachnoid Hemorrhage (NAVSaH): Protocol for a prospective, triple-blinded, randomized controlled trial.
  Gansheng Tan, Markus Adamek, Peter Brunner, David D Limbrick Jr, Anna L Huguenard, Gabrielle W Johnson, Andrew T Coxon, Terrance T Kummer, Joshua W Osbun, Ananth K Vel...> ;Medrxiv. 2024 Mar 19
• Dural arteriovenous fistulas are not observed to convert to a higher grade after partial embolization.
  Erin Walker, Anja Srienc, Daphne Lew, Ridhima Guniganti, Giuseppe Lanzino, Waleed Brinjikji, Minako Hayakawa, Edgar A Samaniego, Colin P Derdeyn, Rose Du, Rosalind Lai...> ;Neurosurgical Focus. 2024 Mar 1
• 2 citations
  The VEBAS score: a practical scoring system for intracranial dural arteriovenous fistula obliteration.
  Becerril-Gaitan, A., Ding, D., Ironside, N., Buell, T., Kansagra, A., Lanzino, G., Brinjikji, W., Kim, L., Levitt, M., Abecassis, I., Bulters, D., Durnford, A., Fox, W...> ;Journal of Neurointerventional Surgery. 2024 Feb 12
• Single-cell multi-omic analysis of the vestibular schwannoma ecosystem uncovers a nerve injury-like state.
  Barrett, T., Patel, B., Khan, S., Mullins, R., Yim, A., Pugazenthi, S., Mahlokozera, T., Zipfel, G., Herzog, J., Chicoine, M., Wick, C., Durakovic, N., Osbun, J., Shew...> ;Nature Communications. 2024 Jan 12
• Comparative cost analysis of endovascular and open approaches for elective treatment of middle cerebral artery aneurysms.
  Cler, S., Pierce, A., Gagne, J., Kansagra, A., Moran, C., Srienc, A., Patel, B., Vellimana, A., Chatterjee, A., Zipfel, G., Osbun, J., Lauzier, D.> ;Interventional Neuroradiology. 2023 Dec 17
• Dural Arteriovenous Fistulas With Cognitive Impairment: Angiographic Characteristics and Treatment Outcomes.
  Sanchez, S., Wendt, L., Hayakawa, M., Chen, C., Sheehan, J., Kim, L., Abecassis, I., Levitt, M., Meyer, R., Guniganti, R., Kansagra, A., Lanzino, G., Giordan, E., Brin...> ;Neurosurgery. 2023 Dec 14
• Conditioning-based therapeutics for aneurysmal subarachnoid hemorrhage - A critical review.
  Sangami Pugazenthi, Aaron J Norris, Abhijit V Lele, Anna Huguenard, Rajat Dhar, Gregory J Zipfel, Umeshkumar Athiraman, David C Lauzier> ;Journal of Cerebral Blood Flow and Metabolism. 2024 Mar 1
• Peripheral macrophages in the development and progression of structural cerebrovascular pathologies.
  David C Lauzier, Anja I Srienc, Ananth K Vellimana, Ralph G Dacey Jr, Gregory J Zipfel> ;Journal of Cerebral Blood Flow and Metabolism. 2024 Feb 1
• 1 citations
  Propofol Affords No Protection against Delayed Cerebral Ischemia in a Mouse Model of Subarachnoid Hemorrhage.
  Meizi Liu, Keshav Jayaraman, James W Nelson, Jogender Mehla, Deepti Diwan, Ananth K Vellimana, Gregory J Zipfel, Umeshkumar Athiraman> ;Diseases. 2023 Sep 27
• 1 citations
  Roadmap for Development of a Strong, Diverse Research Workforce in Neurosurgery.
  Melanie Hayden Gephart, Langston T Holly, Sepideh Amin-Hanjani, Gregory J Zipfel, William J Mack, Michael Tennekoon, Stephen Korn> ;Neurosurgery. 2023 Sep 1
• 1 citations
  Roadmap for Successful Research Training in Neurosurgery.
  Melanie Hayden Gephart, Langston T Holly, Sepideh Amin-Hanjani, Gregory J Zipfel, William J Mack, Michael Tennekoon, Stephen Korn> ;Neurosurgery. 2023 Sep 1
• Intraoperative Blood Pressure and Carbon Dioxide Values during Aneurysmal Repair and the Outcomes after Aneurysmal Subarachnoid Hemorrhage.
  Umeshkumar Athiraman, Aaron J Norris, Keshav Jayaraman, Abhijit V Lele, Rainer Kentner, Preet Mohinder Singh, Omokhaye M Higo, Gregory J Zipfel, Rajat Dhar> ;Journal of Clinical Medicine. 2023 Aug 24
• Job negotiation for neurosurgeon-scientists.
  John D Rolston, Gregory J Zipfel, Dario J Englot> ;Journal of Neurosurgery. 2023 Jun 30
• A Low Subfrontal Dural Opening for Operative Management of Anterior Skull Base Lesions.
  Samuel J Cler, Gavin P Dunn, Gregory J Zipfel, Ralph G Dacey, Michael R Chicoine> ;Journal of Neurological Surgery. Part B, Skull Base. 2023 Jun 1
• 1 citations
  Isoflurane Conditioning Provides Protection against Subarachnoid Hemorrhage Induced Delayed Cerebral Ischemia through NF-kB Inhibition.
  Meizi Liu, Keshav Jayaraman, Jogender Mehla, Deepti Diwan, James W Nelson, Ahmed E Hussein, Ananth K Vellimana, Yousef Abu-Amer, Gregory J Zipfel, Umeshkumar Athiraman> ;Biomedicines. 2023 Apr 12
• 20 citations
  Early Brain Injury After Subarachnoid Hemorrhage: Incidence and Mechanisms.
  David C Lauzier, Keshav Jayaraman, Deepti Diwan, Ananth K Vellimana, Joshua W Osbun, Arindam R Chatterjee, Umeshkumar Athiraman, Rajat Dhar, Gregory J Zipfel, Jane Y Yuan> ;Stroke. 2023 May 1
• 5 citations
  Promoting diversity in neurosurgery: a multi-institutional scholarship-based approach.
  Mareshah N Sowah, Anthony T Fuller, Stephanie H Chen, Barth A Green, Michael E Ivan, Henri R Ford, Gregory J Zipfel, Brenton Pennicooke, Nicholas Theodore, Allan D Levi> ;Journal of Neurosurgery. 2023 Feb 10
• 1 citations
  Impact of Neurosurgery Research and Education Foundation awards on subsequent grant funding and career outcomes of neurosurgeon-scientists.
  Saad Javeed, Sangami Pugazenthi, Anna L Huguenard, Regis W Haid, Michael W Groff, David D Limbrick, Gregory J Zipfel> ;Journal of Neurosurgery. 2023 Jul 1
• 2 citations
  Neoadjuvant stereotactic radiosurgery for brain metastases: a new paradigm.
  Yuping Derek Li, Andrew T Coxon, Jiayi Huang, Christopher D Abraham, Joshua L Dowling, Eric C Leuthardt, Gavin P Dunn, Albert H Kim, Ralph G Dacey, Gregory J Zipfel, J...> ;Neurosurgical Focus. 2022 Nov 1
• 1 citations
  Automated Quantification of Compartmental Blood Volumes Enables Prediction of Delayed Cerebral Ischemia and Outcomes After Aneurysmal Subarachnoid Hemorrhage.
  Yasheng Chen, Keshav Jayaraman, Atul Kumar, Zach Zlepper, Michelle L Allen, Umeshkumar Athiraman, Joshua Osbun, Gregory Zipfel, Rajat Dhar, Jane Y Yuan> ;World Neurosurgery. 2023 Feb 1
• 1 citations
  SIRT1 Activation Promotes Long-Term Functional Recovery After Subarachnoid Hemorrhage in Rats.
  Dongmei Chu, Xuan Li, Xingguang Qu, Deepti Diwan, David S Warner, Gregory J Zipfel, Huaxin Sheng> ;Neurocritical Care. 2023 Jun 1
• Survival After Resection of Newly-Diagnosed Intracranial Grade II Ependymomas: An Initial Multicenter Analysis and the Logistics of Intraoperative Magnetic Resonance I...
  Alexander T Yahanda, Keith M Rich, Ralph G Dacey Jr, Gregory J Zipfel, Gavin P Dunn, Joshua L Dowling, Matthew D Smyth, Eric C Leuthardt, David D Limbrick Jr, John Hon...> ;World Neurosurgery. 2022 Nov 1
• 1 citations
  Surgery for Pituitary Tumor Apoplexy Is Associated with Rapid Headache and Cranial Nerve Improvement.
  Kevin A Cross, Rupen Desai, Ananth Vellimana, Yupeng Liu, Keith Rich, Gregory Zipfel, Ralph Dacey, Michael Chicoine, Cristine Klatt-Cromwell, Jonathan McJunkin, John S...> ;Current Oncology. 2022 Jul 12
• 5 citations
  Early outcomes of the American Academy of Neurological Surgery Emerging Investigator Program in promoting neurosurgeon-scientists.
  Anja I Srienc, Sophie C Church, Stephen J Korn, Russell R Lonser, Gregory J Zipfel> ;Journal of Neurosurgery. 2022 Jul 8
• 6 citations
  SIRT1 mediates hypoxic postconditioning- and resveratrol-induced protection against functional connectivity deficits after subarachnoid hemorrhage.
  Julian V Clarke, Lindsey M Brier, Rachel M Rahn, Deepti Diwan, Jane Y Yuan, Annie R Bice, Shin-Ichiro Imai, Ananth K Vellimana, Joseph P Culver, Gregory J Zipfel> ;Journal of Cerebral Blood Flow and Metabolism. 2022 Jul 1
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Journal Articles

• Completion of Gamma Knife Radiosurgery for AVM Treatment after Unplanned Interruption � Technical Note  
  Raman H, Santanam L, Vellimana AK, Drzymala RE, Tsien C, Zipfel GJ, Acta Neurochirurgica, 1/17/2018
• The relationship between patient safety indicator events and Comprehensive Stroke Center status in the treatment of unruptured cerebral aneurysms  
  Washington CW, Taylor LI, Dambrino RJ, Clark PR, Zipfel GJ, Journal of Neurosurgery, 1/20/2017
• Development of a double monoclonal immunoassay for the quantitation of human visinin-like protein-1 in CSF 1 � An emerging biomarker for Alzheimer�s disease  
  Crimmins DL, Herries EM, Ohlendorf MF, Brada NA, Garbett NC, Zipfel GJ, Schindler SE, Ladenson JH, Clinical Chemistry, 1/1/2017
• Topical Review � Intracranial Dural Arteriovenous Fistulae  
  Reynolds MR, Lanzino G, Zipfel GJ, Stroke, 1/1/2017
• Higher stroke risk with lower blood pressure in hemodynamic vertebrobasilar disease  
  Amin-Hanjani S, Turan T, Du X, Pandey DK, Rose-Finnell L, Richardson D, Elkind MSV, Zipfel GJ, Liebeskind DS, Silver FL, Kasner SE, Gorelick PB, Charbel FT, Derdeyn C..., Journal of Stroke and Cerebrovascular Diseases, 1/1/2017
• Baseline Hemodynamic Impairment and Future Stroke Risk in Adult Idiopathic Moyamoya Phenomenon: Results of a Prospective Natural History Study  
  Derdeyn CP, Zipfel GJ, Zazulia AR, Davis PH, Prabhakaran S, Ivan CS, Bruno A, Aiyagari V, Sagar JJ, Hantler N, Shinawi L, Jiang T, Lee JJ, Jafri H, Grubb RL Jr., Mille..., Stroke, 1/1/2017
• In Defense of Our Patients  
  Hussain S, Fiorella D, Mocco J, Arthur A, Linfante I, Zipfel GJ, Woo H, Frei D, Nogueira R, Albuquerque FC, Journal of NeuroInterventional Surgery, 1/1/2017
• A novel fluorescent imaging technique for assessment of cerebral vasospasm after experimental subarachnoid hemorrhage  
  Aum DJ, Vellimana AK, Singh I, Milner E, Nelson JW, Han BH, Zipfel GJ, Scientific Reports, 1/1/2017
• Minimal Long-Term Neurobehavioral Impairments after Endovascular Perforation Subarachnoid Hemorrhage in Mice  
  Fanizzi C, Suaerbeck AD, Zipfel GJ, Brody DL, Kummer TT, Scientific Reports, 1/1/2017
• Management of Brain Arteriovenous Malformations: A Scientific Statement from the AHA/ASA  
  Derdeyn CP, Zipfel GJ, Albuquerque FC, Cooke D, Feldmann ED, Salman R, Sheehan JP, Torner JC, Stroke, 1/1/2017
• Comparing external ventricular drains-related ventriculitis surveillance definitions  
  Reyes M, Munigala S, Church E, Kulik T, Keyrouz S, Zipfel GJ, Warren DK, Infection Control and Hospital Epidemiology Journal, 1/1/2017
• Neurosurgical Education in a Changing Healthcare and Regulatory Environment  
  Kim DH, Dacey RG, Zipfel GJ, Berger M, McDermott M, Barbaro N, Shapiro SA, Solomon RA, Bruce JN, Harbaugh R, Day AL, Neurosurgery, 1/1/2017
• MMP-9 mediates Delayed Cerebral Ischemia after Subarachnoid hemorrhage  
  Vellimana AK, Zhou ML, Singh I, Aum D, Nelson J, Athiraman U, Han BH, Zipfel GJ, Annals of Clinical and Translational Neurology, 1/1/2017
• Predictors of Thirty-Day Readmission after Aneurysmal Subarachnoid Hemorrhage: a Case-Control Study  
  Greenberg JK, Guniganti R, Arias E, Desai K, Washington CW, Xiong C, Fondahn E, Cross DT, Moran CJ, Rich KM, Chicoine MR, Dhar R, Dacey RG Jr., Derdeyn CP, Zipfel GJ, Journal of Neurosurgery, 1/1/2017
• Impact of Hospital Caseload and Elective admission on Outcomes Following Extracranial-Intracranial Bypass Surgery  
  Akbarian-Tefaghi H, *Kalakoti P, Sun H, Sharma K, Thakur JD, Patra DP, Dossani RH, Savardekar A, Notarianni C, Zipfel GJ, Nanda A, World Neurosurgery, 1/1/2017
• Procedural Requirements and Certification Paradigms for Stroke Care Delivery: Perspective of Neurointerventional Professional Societies  
  Bambakidis N, Cockroft K, Hirsch J, Heck D, Jovin T, Mocco J, Pace J, Siddiqui A, Amin-Hanjani S, Zipfel G, Hoh B, Levine S, Hu Y, Furlan A, Stroke, 1/1/2017
• Causes for Thirty-Day Readmission after Aneurysmal Subarachnoid Hemorrhage  
  Greenberg JK, Washington CW, Guniganti R, Dacey RG Jr., Derdeyn CP, Zipfel GJ, Journal of Neurosurgery, 1/1/2016
• Dural arteriovenous fistulae-induced thalamic dementia: report of 4 cases  
  Holekamp TF*, Mollman ME*, Murphy RKJ, Kolar GR, Morparia NP, Derdeyn CP, Moran CJ, Perrin RJ, Rich KM, Lanzino G, Zipfel GJ, Journal of Neurosurgery, 1/1/2016
• Effect of Hemodynamics on Stroke Risk in Symptomatic Atherosclerotic Vertebrobasilar Occlusive Disease  
  Amin-Hanjani S, Pandey DK, Rose-Finnell L, Du X, Richardson D, Thulborn KR, Elkind MSV, Zipfel GJ, Liebeskind DS, Silver FL, Kasner SE, Aletich VA, Caplan LR, Derdeyn ..., JAMA Neurology, 1/1/2016
• Comparing routine versus selective use of intraoperative cerebral angiography in aneurysm surgery: a prospective study  
  Washington CW, Derdeyn CP, Chicoine MR, Cross DT, Dacey RG Jr., Moran CJ, Rich KM, Zipfel GJ, Journal of NeuroInterventional Surgery, 1/1/2016
• A Phase I proof-of-concept and safety trial of sildenafil to treat cerebral vasospasm following subarachnoid hemorrhage  
  Washington CW, Derdeyn CP, Dhar R, Arias EJ, Chicoine MR, Cross DT, Dacey RG Jr., Moran CJ, Rich KM, Zipfel GJ, Journal of Neurosurgery, 1/1/2016
• Heparan Sulfate Proteoglycans Mediate Amyloid-Beta-Induced Oxidative Stress and Hypercontractility in Cultured Vascular Smooth Muscle Cells  
  Reynolds MR, Singh I, Azad TD, Holmes BB, Verghese PB, Dietrich HH, Diamond M, Bu G, Han BH, Zipfel GJ, Molecular Neurodegeneration, 1/1/2016
• Endovascular management of internal carotid artery injuries secondary to endonasal surgery: case series and review of the literature  
  Sylvester P, Moran C, Derdeyn C, Cross D, Dacey R Jr., Zipfel G, Kim A, Uppaluri R, Haughey B, Tempelhoff R, Rich K, Schneider J, Cole R, Chicoine M, Journal of Neurosurgery, 1/1/2016
• The Diagnostic and Prognostic Utility of the Synaptic Marker, Neurogranin, in Alzheimer Disease  
  Tarawneh R, D�Angelo G, Crimmins D, Griest T, Fagan AM, Zipfel GJ, Ladenson JH, Morris JC, Holtzman DM, JAMA Neurology, 1/1/2016
• Endovascular Parent Vessel Sacrifice in Ruptured Dissecting Vertebral and Posterior Inferior Communicating Artery Aneurysms: Clinical Outcomes and Review of the Litera...  
  Madaelil TP, Wallace AN, Chatterjee AN, Zipfel GJ, Dacey RG Jr., Cross DT III, Moran CJ, Derdeyn CP, Journal of NeuroInterventional Surgery, 1/1/2016
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Books/Book Chapters

• Core Techniques in Operative Neurosurgery 
  Chapter: Superficial Temporal Artery � Middle Cerebral Artery Bypass 
  Reynolds MR, Zipfel GJEditors: Jandial R, McCormick P, Black P.Elsevier2011
• Core Techniques in Operative Neurosurgery 
  Chapter: Pterional Craniotomy for Anterior Communicating Artery Aneurysm Clipping 
  Washington CW, Dacey RG, Jr., Zipfel GJEditors: Jandial R, McCormick P, Black P.Elsevier2011
• Neurosurgery Operative Atlas 
  Chapter: Aneurysm Surgery: General Principles 
  Zipfel GJ, Dacey RG, Jr.Editors: Macdonald RL.Thieme2008
• Atlas of Neurosurgical Techniques 
  Chapter: Surgical management of infraclinoid aneurysms 
  Day AL, Zipfel GJ, Cawley WMEditors: Sekhar LN & Fessler RG.Thieme2006
• Youmans Neurological Surgery 
  Chapter: Surgical treatment of intracavernous and paraclinoid internal carotid artery aneurysms 
  Zipfel GJ, Day ALEditors: Winn HR.W B SaundersEdition 5th,2003
• Management of Cerebral Aneurysms 
  Chapter: Surgical treatment of paraclinoid and ophthalmic aneurysms 
  Zipfel GJ, Day ALEditors: LeRoux PD & Winn HR.W B Saunders2003
• Textbook of Neurological Surgery: Principles and Practice 
  Chapter: Surgical treatment of paraclinoid internal carotid artery aneurysms 
  Zipfel GJ, Day ALEditors: Batjer HH & Loftus CM.Lippincott Williams & Wilkins2002
• Textbook of Carotid Artery Surgery 
  Chapter: Tandem stenotic lesions of the cervical bifurcation and siphon regions of the internal carotid artery 
  Zipfel GJ, Day ALEditors: Loftus CM & Kresowik TF.Thieme1998
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Abstracts/Posters

• Matrix metalloproteinase-9: A key contributor to delayed cerebral ischemia after subarachnoid hemorrhage
  Vellimana AK, Zhou ML, Singh I, Aum DJ, Nelson JW, Han BH, Zipfel GJ, Congress of Neurological Surgeons Annual Meeting, Boston, MA, 1/11/2017
• Fever and Leukocytosis as a predictor of DCI after SAH
  Aum D, Vellimana A, Padovano A, Arias E, Athiraman U, Zipfel GJ, Congress of Neurological Surgeons Annual Meeting, Boston, MA, 1/11/2017
• SIRT1 Activation: A strategy for harnessing endogenous protection against SAH-induced neurovascular dysfunction
  Vellimana AK, Aum DJ, Nelson JW, Han BH, Gidday JM, Zipfel GJ, Congress of Neurological Surgeons Annual Meeting, Boston, MA, 1/7/2017
• A Clinical and Dosimetric Analysis of Factors Predicting Nidus Obliteration for Arteriovenous Malformation Treated with Radiosurgery
  Chundury A, Abraham C, Orlowski H, Madaelil T, Laczniak A, DeWees T, Filiput E, Dryzmala R, Yang D, Perkins S, Tsien C, Zipfel GJ, Robinson C, ASTRO Annual Meeting, Boston, MA, 1/26/2016
• T2/FLAIR changes in dAVF patients: Impact on patient management
  Patel B, Chatterjee A, Petr O, Lanzino G, Derdeyn CP, Zipfel GJ, Neurosurgical Society of America Annual Meeting, Dublin, Ireland, 1/20/2016
• MRI FLAIR Signal Abnormalities are Highly Associated with Aggressive Presenting Symptoms in Patients with Cranial Dural Arteriovenous Fistulas
  Patel B, Chatterjee R, Lanzino G, Derdeyn CP, Zipfel GJ, Cerebrovascular Section Neurosurgical Forum, Congress of Neurological Surgeons Annual Meeting, New Orleans, LA, 1/29/2015
• Predictors of Thirty Day Readmission after Aneurysmal Subarachnoid Hemorrhage: A Case-Control Study
  Greenberg J, Guniganti R, Arias E, Desai K, Dhar R, Dacey RG, Colin Derdeyn CP, Zipfel GJ, Cerebrovascular Section Neurosurgical Forum, Congress of Neurological Surgeons Annual Meeting, New Orleans, LA, 1/29/2015
• Causes for Thirty Day Readmission after Aneurysmal Subarachnoid Hemorrhage
  Greenberg J, Washington C, Guniganti R, Dacey RG, Colin Derdeyn CP, Zipfel GJ, Congress of Neurological Surgeons Annual Meeting, New Orleans, LA, 1/29/2015
• Risk factors for Stroke in Symptomatic Vertebrobasilar disease: Results of the Prospective International Multicenter VERiTAS Study
  Amin-Hanjani S, Pandey DK, Rose-Finnell L, Du X, Richardson D, Thulborn KR, Elkind MS, Zipfel GJ, Liebeskind DS, Silver FL, Kasner SE, Aletich V, Caplan LR, Derdeyn CP..., International Stroke Conference, Nashville, TN, 1/13/2015
• Neurological Surgery Milestones � Compatible Evaluations System
  Selden N, Waldo H, Abosch A, Byrne R, Harbaugh R, Krauss W, Mapstone T, Sagher O, Zipfel G, Derstine P, Batjer H, ACGME Annual Meeting, Washington, DC, 1/27/2014
• Assessment using Neurosurgery Milestones in the New Innovations Residency Management System
  Weber T, Takeyama R, Ganju A, Zipfel GJ, American Association of Neurological Surgeons Annual Meeting, San Francisco, CA, 1/7/2014
• Transfusion of Older Stored Blood Impairs Oxygen Offloading to Vulnerable Brain Regions in Patients with Subarachnoid Hemorrhage
  Dhar R, Zazulia A, Derdeyn C, Chicoine M, Zipfel G, Diringer M, Neurocritical Care Society Annual Meeting, Philadelphia, PA, 1/2/2014
• A Phase I Clinical Trial of Sildenafil for the Treatment of Cerebral Vasospasm Following Subarachnoid Hemorrhage
  Washington CW, Dhar R, Derdeyn CP, Zipfel GJ, International Stroke Conference, San Diego, CA, 1/2/2014
• Post-Conditioning with Isoflurane Reduces SAH-induced Vasospasm and Microthrombosis via Hypoxia-Inducible Factor 1 and Nitric Oxide Synthase
  Milner E, Harries MD, Vellimana AK, Gidday JM, Han BH, Zipfel GJ, Cerebrovascular Section Scientific Session, Congress of Neurological Surgeons Annual Meeting, San Francisco, CA, 1/22/2013
• Diminished Cortical Thickness and Increased Oxygen Extraction Fraction in Moyamoya Disease
  Lee J, Sagar J, Zipfel G, Zazulia A, Derdeyn C, International Stroke Conference, Honolulu, HI, 1/7/2013
• Prevalence of Bicuspid Aortic Valves and Thoracic Ascending Aortic Aneurysms in Patients Treated for Intracranial Aneurysms
  Goyal MS, Gottumukkala R, Bhalla S, Kates AM, Zipfel GJ, Derdeyn CP, International Stroke Conference, Honolulu, HI, 1/7/2013
• A Novel Technique in Controlling for Severity of Subarachnoid Hemorrhage and Measuring Outcomes in the Analysis of the Nationwide Inpatient Sample: The NIS-SAH Severit...
  Washington C, Derdeyn CP, Dacey RG Jr., Dhar R, Zipfel GJ, International Stroke Conference, Honolulu, HI, 1/6/2013
• Randomized controlled trial of the effect of simvastatin on CBF and autoregulation following acute SAH
  Diringer M, Dhar R, Zipfel GJ, Chicoine M, Derdeyn CP, Neurocritical Care Society Annual Meeting, Philadelphia, PA, 1/2/2013
• Diffusion tensor imaging detects multifocal axonal injury in a mouse model of subarachnoid hemorrhage
  Kummer TT, MacDonald CL, Milner E, Zipfel GJ, Brody DL, Neurocritical Care Society Annual Meeting, Philadelphia, PA, 1/2/2013
• Development of a CAA-specific Amyloid Imaging Tracer
  Han BH, Mach R, Chu W, Xu J, Zipfel GJ, Alzheimer's Association International Conference, Alzheimer’s Imaging Consortium Session, Vancouver, British Columbia, Canada, 1/14/2012
• Is IV tPA administration a risk factor for ICH following CEA?
  Zipfel GJ, Vellimana AK, Blackburn S, Yarbrough C, Strom R, Pilgram T, Grubb RL Jr., Rich K, Chicoine M, Hoh B, Dacey RG Jr., Derdeyn CP, Neurosurgical Society of America Annual Meeting, Park City, UH, 1/11/2012
• Dural Arteriovenous Fistulas Associated with Benign Intracranial Tumors
  Vellimana AK, Daniels DJ, Lanzino G, Zipfel GJ, Congress of Neurological Surgeons Annual Meeting, Chicago, IL, 1/9/2012
• Characteristics of Neurosurgery's Most Successful Research Programs
  Zusman EE, Mahadevia R, Fost M, Friedlander RM, Zipfel GJ, LaBorde DV, Congress of Neurological Surgeons Annual Meeting, Chicago, IL, 1/9/2012
• Evidence for an Ischemic Preconditioning Effect on Cerebral Vasospasm in Patients with Aneurysmal Subarachnoid Hemorrhage
  Kim YW, Ogilvy CS, Pricola K, Reavey-Cantwell J, Kelman C, Zipfel G, Washington C, Albuquerque F, Kalani Y, Hoh BL, Congress of Neurological Surgeons Annual Meeting, Chicago, IL, 1/6/2012
• The Impact Of Hemodynamic Factors On Stroke Risk In Moyamoya Phenomenon: A Prospective Natural History Study
  Derdeyn CP, Sagar J, Lee J, Aiyagari V; Davis P, Ivan C, Prabhakaran S, Shinawi L, Hantler N, Zazulia A, Grubb R Jr. Zipfel GJ, International Stroke Conference, New Orleans, LA, 1/3/2012
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Lectures

• With Privilege Comes Great Responsibility 
  Los Angeles, CA - 1/23/2018
• Subarachniod Hemorrhage: Modern Management and New Therapeutic Approaches 
  University of Missouri, Columbia, MO - 1/27/2017
• SNS Resident Courses � An Update 
  Houston, TX - 1/23/2017
• NIH Career Development Awards 
  Los Angeles, CA - 1/22/2017
• K Awards and Beyond 
  Houston, TX - 1/22/2017
• Hemostatic stabilization after subarachnoid hemorrhage 
  Washington University School of Medicine / Barnes-Jewish Hospital, St. Louis, MO - 1/10/2017
• SIRT1 Activation: A Strategy for Harnessing Endogenous Protection in Subarachnoid Hemorrhage 
  Boston, MA - 1/9/2017
• Vascular contributors to dementia: the underappreciated role of CAA 
  Washington University, St. Louis, MO - 1/4/2017
• Subarachnoid Hemorrhage: Modern Management and Novel Therapeutic Approaches 
  Phoenix, AZ, 2016; University of Mississippi, Jackson, MS, 2016 - 1/28/2016
• Intracerebral hemorrhage � Incidence, Societal Cost, and Clinical Characteristics 
  San Diego, CA - 1/27/2016
• Cranial dural arteriovenous fistulas: Complication avoidance 
  San Diego, CA - 1/26/2016
• Has ARUBA Changed the Current Management of AVMs? 
  Los Angeles, CA - 1/16/2016
• Management of unruptured AVMs after ARUBA 
  Sea Island, GA - 1/14/2016
• The Future of Academic Neurosurgery Departments 
  Washington University, St. Louis, MO - 1/11/2016
• The Problem Resident � Case Vignettes and Panel Discussion 
  Indianapolis, IN - 1/5/2016
• Associate Program Directors: A new group of neurosurgery residency leaders 
  Indianapolis, IN - 1/4/2016
• Building a career as a neurosurgeon-scientist � lessons learned 
  Boston, MA - 1/4/2016
• Management of Cerebral Aneurysms � An Update 
  Washington University, St. Louis, MO - 1/30/2015
• Using Milestones to Identify and Manage the �Problem Resident� 
  New Orleans, LA - 1/26/2015
• The Future of Departments of Neurosurgery in Academic Medical Centers 
  University of Minnesota, Minneapolis, MN - 1/26/2015
• Building a career as an academic neurosurgeon � lessons learned 
  Northwestern University Medical School, Chicago, IL - 1/19/2015
• ECIC Bypass � Surgical Technique 
  Seattle, WA - 1/9/2015
• There is a Role for an AVM Randomized Trial 
  Nashville, TN - 1/9/2015
• The Promise of Conditioning-Based Therapy for Aneurysmal Subarachnoid Hemorrhage 
  Loma Linda University, Los Angeles, CA - 1/9/2015
• Brain Aneurysms and Vascular Malformations 
  Washington University, St. Louis, MO - 1/7/2015
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Other

• Expert Panel on Neurologic Imaging. ACR Appropriateness Criteria headache 
  Jordan JE, Wippold FJ II, Cornelius RS, Amin-Hanjani S, Brunberg JA, Davis PC, De La Paz RL, Dormont D, Germano I, Gray L, Mukherji SJ, Seidenwurm DJ, Sloan MA, Turski..., American College of Radiology (ACR)
  Reston, VA - 1/1/2009