The UTHealth Stroke Institute is proud to recognize the accomplishments of our past fellows, whose contributions continue to advance the field of stroke research and care. Our graduate fellows have gone on to make meaningful impacts in academic medicine, clinical practice, and scientific discovery.
View the full list of our graduate, current, and incoming fellows.
Top Cited Papers by Stroke Fellows As First Author
- Serum glucose level and diabetes predict tissue plasminogen activator–related intracerebral hemorrhage in acute ischemic stroke
- High Rate of Complete Recanalization and Dramatic Clinical Recovery During tPA Infusion When Continuously Monitored With 2-MHz Transcranial Doppler Monitoring
- Transcranial Doppler Ultrasound Criteria for Recanalization After Thrombolysis for Middle Cerebral Artery Stroke
- Activation of Emergency Medical Services for Acute Stroke in a Nonurban Population
- Cell death in experimental intracerebral hemorrhage: The “black hole” model of hemorrhagic damage
- Ultrasound-Enhanced Systemic Thrombolysis for Acute Ischemic Stroke
- Aggressive Mechanical Clot Disruption
- The IVH score: a novel tool for estimating intraventricular hemorrhage volume: clinical and research implications
- Thrombolytic therapy for patients who wake-up with stroke
- Safety of tPA in stroke mimics and neuroimaging-negative cerebral ischemia
- Zero on the NIHSS does not equal the absence of stroke
Han-Hwa Hu MD (1982)
Professor of Neurology and Director of Cerebrovascular Treatment and Research Center at Taipei Medical University
- Dr. Grotta’s First Stroke Fellow

Creed Pettigrew MD, MPH (1986)
Professor Neurology, University of Kentucky
- Dr. Grotta’s Second Stroke Fellow
- International Leader in Stroke Research

Daniel Rosenbaum MD (1988)
Professor and Chair, Department of Neurology, Downstate Medical Center
- Dr. Grotta’s Third Stroke Fellow
- International Leader in Stroke Research
- Honored with the Clinical Investigator Developmental Award by the National Institute of Neurological Disorders and Stroke

Thomas DeGraba, MD (1990)
Chief Innovations Officer at the National Intrepid Center of Excellence (NICoE), Walter Reed National Military Medical Center, Bethesda, Maryland
- At our center, first to give glutamate antagonists to acute stroke patients
- Became Director of the Intramural Stroke Program at NIH
- Dr. DeGraba is a nationally recognized clinical neuroscience subject matter expert in Traumatic Brain Injury (TBI) and Psychological Health (PH) conditions

Lewis Morgenstern MD (1994)
Professor of Neurology and Epidemiology, Director of the Stroke Program, University of Michigan
- At our center, Dr. Morgenstern published the first STICH trial on surgical removal of hematomas in ICH patients and very early hematoma removal leading to re-bleeding and poor outcomes
- Directs the NIH Funded Brain Attack Surveillance in Corpus Christi (BASIC) - an original stroke disparities research comparing Mexican Americans and non-Hispanic whites.

Andrei Alexandrov MD (1996)
Professor and Chair of Neurology, University of Tennessee
- At our center, pioneered transcranial ultrasound as an adjunctive therapeutic with t-PA
- Aureva Sonolysis Headframe

Scott Kasner MD (1996)
Professor and Chief, Division of Vascular Neurology, Department of Neurology, University of Pennsylvania
- International Leader in Stroke Research
- Leader in the NAVIGATE Trial and PFO Closure Trials

Andrew Demchuk MD (1997)
Professor of Neurology, Director of the Stroke Program, University of Calgary;
Stroke neurologist and Director of the Calgary Stroke Program, Alberta Health Services
- One of the leaders of the ESCAPE Trial on the efficacy of thrombectomy for large vessel occlusions
- Received a number of awards, including the Michael S. Pessin Stroke Leadership Prize from the American Academy of Neurology (2003), and the A Keith W Brownell Neurology Teaching Award for resident teaching (2006), and a scholar award from the Alberta Heritage Foundation for Medical Research (AHFMR).

Marc Ribo MD (2004)
Assistant Professor, Department of Neurology; Hospital Vall d’Hebron. Barcelona
- PI of the RACECAT Trial
- Board of directors Member Society of Vascular Interventional Neurology
- Member of European Society of Minimally Invasive Neurological Therapy

Sheryl Martin Schild MD (2006)
Stroke Medical Director for The Louisiana Emergency Response Network
- Founded and directed the Stroke Program at Tulane Medical Center
- Advanced Tulane Medical Center to Primary Stroke Center level in less than 2 years from inception and Comprehensive Stroke Center 3 years later
- Will serve as PI for Southeast Louisiana’s satellites and high-performance sites, through UTHealth's Regional Coordinating Center, for the National Institute of Health (NIH) funded StrokeNet.

Andrew Barreto MD (2006)
Associate Professor of Neurology, University of Texas Health Science Center Response Network
- One of the Leaders of the MOST Trial
- Leader of the TIMELESS trial: thrombolysis in imaging-eligible, late-window patients to assess the efficacy and safety of Tenecteplase
- Leader of the TRUST Study: Aureva Transcranial Ultrasound Device with Tissue Plasminogen Activator in Patients with Acute Ischemic Stroke

Amrou Sarraj MD (2010)
Associate Professor of Neurology, University of Texas Health Science Center
- Leader of the SELECT Trials
- Director of UT Health's Vascular Neurology Fellowship Program 2016-2020

Carter Denny MD (2014)
Assistant Professor of Neurology, Georgetown University Medical Center
- Leader in Stroke Transitions of Care
