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N. Ostapkovich · SciRah

Researcher profile · Semantic Scholar

N. Ostapkovich

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N. Ostapkovich — researcher profile on SciRah

h-index: 41
Works: 121
Citations: 7,549

Most-cited papers

Minimally invasive surgery with thrombolysis in intracerebral haemorrhage evacuation (MISTIE III): a randomised, controlled, open-label phase 3 trial with blinded endpoint
D. Hanley, R. Thompson, M. Rosenblum, G. Yenokyan +225 more
2019The Lancet677 citations Open access
Semantic Scholar
Impact of medical complications on outcome after subarachnoid hemorrhage*
K. Wartenberg, J. M. Schmidt, J. Claassen, Richard E. Temes +5 more
2006Critical Care Medicine571 citations
Semantic Scholar
Impact of tight glycemic control on cerebral glucose metabolism after severe brain injury: A microdialysis study*
M. Oddo, J. M. Schmidt, E. Carrera, N. Badjatia +6 more
2008Critical Care Medicine388 citations Open access
Semantic Scholar
Predictors and impact of aneurysm rebleeding after subarachnoid hemorrhage.
A. Naidech, N. Janjua, K. Kreiter, N. Ostapkovich +5 more
2005Archives of Neurology357 citations Open access
Semantic Scholar
Cardiac Troponin Elevation, Cardiovascular Morbidity, and Outcome After Subarachnoid Hemorrhage
A. Naidech, K. Kreiter, N. Janjua, N. Ostapkovich +5 more
2005Circulation331 citations Open access
Semantic Scholar
Initial misdiagnosis and outcome after subarachnoid hemorrhage.
R. Kowalski, J. Claassen, K. Kreiter, Joseph E. Bates +3 more
2004Journal of the American Medical Association (JAMA)331 citations
Semantic Scholar
Metabolic Impact of Shivering During Therapeutic Temperature Modulation: The Bedside Shivering Assessment Scale
N. Badjatia, Evangelia Strongilis, Errol L. Gordon, Mary Prescutti +6 more
2008Stroke316 citations Open access
Semantic Scholar
Phenytoin Exposure Is Associated With Functional and Cognitive Disability After Subarachnoid Hemorrhage
A. Naidech, K. Kreiter, N. Janjua, N. Ostapkovich +5 more
2005Stroke310 citations Open access
Semantic Scholar
Clinical trial of a novel surface cooling system for fever control in neurocritical care patients*
Stephan A. Mayer, R. Kowalski, M. Presciutti, N. Ostapkovich +10 more
2004Critical Care Medicine245 citations
Semantic Scholar
Effect of acute physiologic derangements on outcome after subarachnoid hemorrhage*
J. Claassen, A. Vu, K. Kreiter, R. Kowalski +5 more
2004Critical Care Medicine218 citations
Semantic Scholar
Comparison of Remifentanil and Fentanyl in Patients Undergoing Craniotomy for Supratentorial Space‐occupying Lesions
J. Guy, B. Hindman, K. Z. Baker, C. Borel +11 more
1997Anesthesiology209 citations Open access
Semantic Scholar
Hyperglycemia After SAH: Predictors, Associated Complications, and Impact on Outcome
Jennifer A. Frontera, A. Fernández, J. Claassen, M. Schmidt +6 more
2006Stroke205 citations Open access
Semantic Scholar
Fever after subarachnoid hemorrhage
A. Fernández, J. M. Schmidt, J. Claassen, Martina Pavlicová +7 more
2007Neurology185 citations
Semantic Scholar
Higher hemoglobin is associated with improved outcome after subarachnoid hemorrhage*
A. Naidech, B. Jovanovic, K. Wartenberg, Augusto Parra +4 more
2007Critical Care Medicine179 citations
Semantic Scholar
Do Standard Monitoring Sites Reflect True Brain Temperature When Profound Hypothermia Is Rapidly Induced and Reversed
J. G. Stone, William L. Young, Craig R. Smith, Robert A. Solomon +3 more
1995179 citations Open access
Semantic Scholar
Frequency and clinical impact of asymptomatic cerebral infarction due to vasospasm after subarachnoid hemorrhage.
J. M. Schmidt, K. Wartenberg, A. Fernández, J. Claassen +6 more
2008Journal of Neurosurgery147 citations
Semantic Scholar
IMPACT OF RED BLOOD CELL TRANSFUSION ON OUTCOME AFTER SUBARACHNOID HEMORRHAGE.
K. Wartenberg, J. M. Schmidt, A. Fernández, J. Claassen +6 more
2006Critical Care Medicine147 citations
Semantic Scholar
Do Standard Monitoring Sites Reflect True Brain Temperature When Profound Hypothermia Is Rapidly Induced and Reversed?
Gilbert J. Stone, W. Young, Craig R. Smith, R. A. Solomon +3 more
1995Anesthesiology142 citations
Semantic Scholar
Surgical Performance Determines Functional Outcome Benefit in the Minimally Invasive Surgery Plus Recombinant Tissue Plasminogen Activator for Intracerebral Hemorrhage Evacuation (MISTIE) Procedure.
I. Awad, Sean P. Polster, J. Carrión-Penagos, Richard E. Thompson +228 more
2019Neurosurgery141 citations Open access
Semantic Scholar
Pharmacokinetics and Pharmacodynamics of Rocuronium (Org 9426) in Elderly Surgical Patients
R. Matteo, E. Ornstein, A. Schwartz, N. Ostapkovich +1 more
1993Anesthesia and Analgesia127 citations Open access
Semantic Scholar
Recovery of brain function during induced cerebral hypoperfusion.
R. Marshall, R. Lazar, John Pile-Spellman, W. L. Young +3 more
2001Brain : a journal of neurology109 citations
Semantic Scholar
Cerebral hyperemia after arteriovenous malformation resection is related to "breakthrough" complications but not to feeding artery pressure. The Columbia University Arteriovenous Malformation Study Project.
W. L. Young, A. Kader, E. Ornstein, K. Z. Baker +4 more
1996Neurosurgery109 citations
Semantic Scholar
Left Ventricular Dysfunction and Cerebral Infarction from Vasospasm After Subarachnoid Hemorrhage
Richard E. Temes, E. Tessitore, J. M. Schmidt, A. Naidech +9 more
2010Neurocritical Care100 citations Open access
Semantic Scholar
Adenosine-induced Ventricular Asystole to Induce Transient Profound Systemic Hypotension in Patients Undergoing Endovascular Therapy: Dose–Response Characteristics
T. Hashimoto, W. Young, B. Aagaard, S. Joshi +2 more
2000Anesthesiology91 citations Open access
Semantic Scholar
Desflurane and Isoflurane Have Similar Effects on Cerebral Blood Flow in Patients with Intracranial Mass Lesions
E. Ornstein, W. Young, L. H. Fleischer, N. Ostapkovich
1993Anesthesiology89 citations Open access
Semantic Scholar
The effect of arteriovenous malformation resection on cerebrovascular reactivity to carbon dioxide.
W. Young, I. Prohovnik, E. Ornstein, N. Ostapkovich +3 more
1990Neurosurgery85 citations
Semantic Scholar
Pressure autoregulation is intact after arteriovenous malformation resection.
W. L. Young, A. Kader, Isak Prohovnik, E. Ornstein +4 more
1993Neurosurgery84 citations Open access
Semantic Scholar
Systemic Glucose and Brain Energy Metabolism after Subarachnoid Hemorrhage
R. Helbok, J. M. Schmidt, P. Kurtz, Khalid A. Hanafy +9 more
2010Neurocritical Care81 citations
Semantic Scholar
Cerebral Blood Flow Reactivity to Changes in Carbon Dioxide Calculated Using End-Tidal versus Arterial Tensions
W. Young, I. Prohovnik, E. Ornstein, N. Ostapkovich +1 more
1991Journal of Cerebral Blood Flow and Metabolism79 citations Open access
Semantic Scholar
Pharmacodynamics and Pharmacokinetics of Cisatracurium in Geriatric Surgical Patients
E. Ornstein, Cynthia A. Lien, R. Matteo, N. Ostapkovich +2 more
1996Anesthesiology72 citations
Semantic Scholar
Bleeding and Infection With External Ventricular Drainage: A Systematic Review in Comparison to Adjudicated Adverse Events in the Ongoing CLEAR III Trial
M. Dey, Agnieszka Stadnik, F. Riad, Lingjiao Zhang +14 more
2015Neurosurgery71 citations Open access
Semantic Scholar
Adenosine-induced cardiac pause for endovascular embolization of cerebral arteriovenous malformations: technical case report.
J. Pile-Spellman, W. L. Young, S. Joshi, H. Duong +6 more
1999Neurosurgery69 citations
Semantic Scholar
Early neurological deterioration after subarachnoid haemorrhage: risk factors and impact on outcome
R. Helbok, P. Kurtz, M. Vibbert, M. Schmidt +8 more
2012Journal of Neurology Neurosurgery & Psychiatry59 citations Open access
Semantic Scholar
Cerebral blood flow and CO2 reactivity is similar during remifentanil/N2O and fentanyl/N2O anesthesia.
N. Ostapkovich, K. Z. Baker, Patricia Fogarty-Mack, Michael B. Sisti +1 more
1998Anesthesiology59 citations
Semantic Scholar
Intact Cerebral Blood Flow Reactivity During Remifentanil/Nitrous Oxide Anesthesia
K. Z. Baker, N. Ostapkovich, M. Sisti, D. Warner +1 more
1997Journal of Neurosurgical Anesthesiology56 citations
Semantic Scholar
Acute Ischemic Injury on Diffusion-Weighted Magnetic Resonance Imaging after Poor Grade Subarachnoid Hemorrhage
K. Wartenberg, Sheetal J. Sheth, J. M. Schmidt, Jennifer A. Frontera +7 more
2011Neurocritical Care52 citations
Semantic Scholar
Predictors and clinical implications of shivering during therapeutic normothermia
N. Badjatia, R. Kowalski, J. M. Schmidt, M. Voorhees +7 more
2007Neurocritical Care49 citations
Semantic Scholar
Deliberate Hypotension in Patients With Intracranial Arteriovenous Malformations: Esmolol Compared With Isoflurane and Sodium Nitroprusside
E. Ornstein, W. Young, N. Ostapkovich, R. Matteo +1 more
1991Anesthesia and Analgesia48 citations Open access
Semantic Scholar
Intraoperative 133Xe cerebral blood flow measurements by intravenous versus intracarotid methods.
William L. Young, Isak Prohovnik, Torben Schroeder, James W. Correll +1 more
1990Anesthesiology45 citations
Semantic Scholar
Intracarotid infusion of the nitric oxide synthase inhibitor, L-NMMA, modestly decreases cerebral blood flow in human subjects.
S. Joshi, W. L. Young, D. H. Duong, N. Ostapkovich +3 more
2000Anesthesiology44 citations
Semantic Scholar
Transcranial Doppler Ultrasound in the Acute Phase of Aneurysmal Subarachnoid Hemorrhage
E. Carrera, J. M. Schmidt, M. Oddo, N. Ostapkovich +9 more
2009Cerebrovascular Diseases41 citations Open access
Semantic Scholar
Intra-arterial nitrovasodilators do not increase cerebral blood flow in angiographically normal territories of arteriovenous malformation patients.
S. Joshi, William L. Young, John Pile-Spellman, Patricia Fogarty-Mack +6 more
1997Stroke41 citations
Semantic Scholar
Long-term domain-specific improvement following poor grade aneurysmal subarachnoid hemorrhage
J. Mocco, Evan R. Ransom, R. Komotar, Paulina B. Sergot +5 more
2006Journal of Neurology40 citations
Semantic Scholar
Consequences of Electroencephalographic-suppressive Doses of Propofol in Conjunction with Deep Hypothermic Circulatory Arrest
J. G. Stone, William L. Young, Zvi S. Marans, Robert A. Solomon +4 more
1996Anesthesiology35 citations
Semantic Scholar
Superselective intraarterial papaverine administration: effect on regional cerebral blood flow in patients with arteriovenous malformations.
Patricia Fogarty-Mack, John Pile-Spellman, L. Hacein-Bey, N. Ostapkovich +3 more
1996Journal of Neurosurgery34 citations
Semantic Scholar
Intracarotid Nitroprusside Does Not Augment Cerebral Blood Flow in Human Subjects
S. Joshi, W. L. Young, H. Duong, Beverly A. Aagaard +3 more
2002Anesthesiology33 citations
Semantic Scholar
Effect of mannitol on brain metabolism and tissue oxygenation in severe haemorrhagic stroke
R. Helbok, P. Kurtz, J. M. Schmidt, R. Stuart +9 more
2010Journal of Neurology Neurosurgery & Psychiatry31 citations
Semantic Scholar
Are All Effects of Esmolol Equally Rapid in Onset?
E. Ornstein, W. L. Young, N. Ostapkovich, Richard S. Matteo +1 more
1995Anesthesia and Analgesia27 citations Open access
Semantic Scholar
Post-stroke depression in patients with large spontaneous intracerebral hemorrhage
Radhika Avadhani, R. Thompson, Lourdes R. Carhuapoma, G. Yenokyan +7 more
2021Journal of Stroke & Cerebrovascular Diseases25 citations Open access
Semantic Scholar
Manipulation of Cerebrovascular Resistance During Internal Carotid Artery Occlusion by Intraarterial Verapamil
S. Joshi, W. Young, J. Pile-Spellman, D. H. Duong +5 more
1997Anesthesia and Analgesia25 citations Open access
Semantic Scholar

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