Jeffrey Fletcher, MD


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Jeffrey Fletcher, MD


NEUROSURGERY / NEUROLOGY


jeffrey fletcher, md

Clinical Assistant Professor,  Neurosurgery

734-936-9579

jeffletc@med.umich.edu

Dr. Fletcher is a Clinical Assistant Professor in the Departments of Neurosurgery and Neurology at the University of Michigan.  He received his B.S. in human physiology from Michigan State University in East. Lansing in 1996 and his degree in medicine from Wayne State University, Detroit in 2000.  Dr. Fletcher then completed a residency in Neurology at the University of Texas Health Science Center in San Antonio followed by fellowships in vascular neurology and neurocritical care at the University of Virginia, Charlottesville VA. Prior to joining the University of Michigan in 2009, Dr. Fletcher was a clinical instructor in medicine at Michigan State University and Staff neurointensivists at Bronson Methodist Hospital in Kalamazoo MI. Dr. Fletcher completed a Master’s of Science degree in clinical research design and statistics at the University Of Michigan School Of Public Health.

Dr. Fletcher’s research interests include clinical outcomes research in general critical care and neurological critical care.  He has a specific interest in reducing intensive care unit complications to improve outcome in subarachnoid hemorrhage patients.  Additionally, monitoring of the autonomic nervous system after brain injury with the hope to gain insight into how autonomic nervous system abnormalities relate to outcome after brain injury and how manipulation of the autonomic nervous system may improve outcome. Dr. Fletcher’s research has been deeply collaborative including joint work with the departments of Neurology, Neurosurgery and Emergency Medicine. Dr. Fletcher is currently funded for translation research through the Michigan Institute for Clinical and Health Research. Dr. Fletcher currently has over 25 publications in peer reviewed journals and reviews for numerous journals in the medical field.  He has also been a reviewer of abstracts for the society of critical care medicine of neurocritical care society annual congresses.

Hugh J.L. Garton, MD, MHSc


Hugh J.L. Garton, MD, MHSc


hugh j.l. garton, md, mhsc

Associate Professor, Neurosurgery
 

734-615-0536

hgarton@umich.edu

Hugh J.L. Garton, M.D, MHSc received his undergraduate and medical degrees at Northwestern University in Chicago, Illinois where he was a graduate of the Honors Program in Medical Education. He completed his surgical internship and neurosurgical residency in 1997 at the University of Utah in Salt Lake City, Utah under the direction of Dr. M. Peter Heilbrun and Dr. Marion Walker. Follow residency training he was invited to be Fellow in Clinical Trials at the University of British Columbia, Vancouver, Canada and obtained a Masters Degree in Health Sciences with concentrations in Clinical Epidemiology and Clinical Trials, under the supervision of Dr. John Kestle.

After completing his residency and post graduate training, he completed Fellowship training in Pediatric Neurosurgery at Indiana University, Riley Hospital for Children then joined the Department of Neurosurgery at the University of Michigan in the fall of 1999.

His clinical practice encompasses all areas of Pediatric Neurosurgery with special interests in hydrocephalus, cerebrospinal fluid shunts, neuroendoscopy, myelomeningocele, brain tumors, the surgical management of epilepsy and spasticity, pediatric neurotrauma and pediatric spinal instability.

An Associate Professor in the Dept. of Neurosurgery, he holds the Richard C. Schneider Professorship and is chief of the Pediatric Neurosurgery Service. He serves the Department of Neurosurgery’s primary liaison to both the adult and pediatric trauma services.

Dr. Garton is Board Certified by the American Board of Neurological Surgery and the American Board of Pediatric Neurological Surgery.

His research interests include clinical epidemiology, clinical trials and outcomes in neurosurgery, clinical prediction of shunt malfunction, outcomes after head injury, management of severe head injury, intracranial pressure monitoring, pediatric hydrocephalus and intraventricular hemorrhage, treatments of hydrocephalus and the surgical management of intractable spasticity.

Teresa Jacobs, MD


Teresa Jacobs, MD


teresa jacobs, md

Medical Director, Neurosurgical Intensive Care
Clinical Associate Professor, Neurosurgery and Neurology

734-936-9579

 teresmit@med.umich.edu

Dr. Teresa Jacobs is a Clinical Associate Professor in both the Department of Neurosurgery and Neurology.  She obtained her BA in Chemistry from Indiana University of Pennsylvania in 1981.  She was an award winning high school teacher of Chemistry and Physics for the first 10 years of her career.  In 1993, she sought her degree in medicine at the University of Pittsburgh.  Her internship was as an Internal Medicine intern at the University of Texas Medical Branch (UTMB) after which she completed a neurology residency at the University of Virginia.  She stayed at the University of Virginia where she completed a Neurocritical Care Fellowship and served as a Clinical Instructor in the Department of Neurology. 

Following her work at the University of Virginia, Dr. Jacobs moved to Kalamazoo, Michigan where she entered private practice as the Medical Director of Adult Neurology at Bronson Methodist Hospital.  At Bronson, she was able to establish several critical care protocols and pathways, as well as maintain two subspecialty out-patient clinics in stroke and behavioral neurology.  She also assisted the organization in achieving a Primary Stroke Center Designation as part of her development of the Acute Stroke Program at Bronson. In 2004, Dr. Jacobs came to the University of Michigan to assume the position of Medical Director of Neurosurgical Intensive Care for the Department of Neurosurgery.  She is triple boarded in Neurology, Neurocritical Care, and Vascular Neurology.

Her work in Neurocritical Care has included founding the University of Michigan’s UCNS-accredited Neurocritical Care fellowship.  She has advanced the Neurocritical Care Program to include four Neurointensivists, Neurointensive Care fellows, and a program for training Neurosurgery and Neurology residents.  She also serves at the Medical Director of the in-patient general care unit.

Dr. Jacobs has a research interest in portable methods for ICU imaging and is currently working with a group developing a new portable CT scanner.  She also participates collaboratively with her partners in ICU research surrounding central venous catheters, percutaneous tracheostomy, and normothermia.  She is also active in research surrounding patient care and patient care systems.  She has been involved in several projects that have resulted in decrease in-patient length of stay and re-admission rates.  She has established new multi-disciplinary rounding structures for both Neurosurgery and Neurology that have improved patient care.

She serves as an ad hoc reviewer for Neurology and several other grant competitions.  She is an active member of several national organizations including the Neurocritical Care Society and the American Association of Neurosurgeons.

Richard F. Keep, PhD


Richard F. Keep, PhD


richard f. keep, phd

Professor, Neurosurgery
Professor,  Molecular and Integrative Physiology

734-764-5128

rkeep@umich.edu

Dr. Keep’s research interests are the blood-brain barriers and mechanisms of brain injury. The latter focuses on stroke (intracerebral hemorrhage, subarachnoid hemorrhage, intraventricular hemorrhage, cerebral ischemia) and traumatic brain injury. He primarily uses in vivo models (rat, mouse, pig), but also studies in vitro systems. His studies on the blood-brain and blood-CSF barriers spans normal physiology, the effects of disease states and the development of brain penetrant therapeutic agents. The latter currently includes developing therapeutic agents for lysosomal storage disorders, pain and neurotropic viruses. The blood-brain barrier studies also span in vitro and in vivo systems.

Dr. Keep did his undergraduate education at Cambridge University (England) and Ph.D at the University of Aberdeen. After postdoctoral fellowships at the University of Hull and King's College London, he joined the faculty in the Department of Neurosurgery in 1989. He is currently the Crosby Kahn Collegiate Professor of Neurosurgery, Director of the Crosby Neurosurgical Laboratories and Associate Chair for Research.

Israel Liberzon, MD


Israel Liberzon, MD


israel liberzon, md

liberzon.jpg

Theophile Raphael Professor of Neuroscience
Professor of Psychiatry, Psychology
Associate Chair, Academic Development, Department of Psychiatry

734-764-9527

liberzon@umich.edu

Israel Liberzon, MD, is a Professor Psychiatry, Psychology and Neuroscience at the University of Michigan.  After graduating from Sacklers Medical School, Tel Aviv University, Dr. Liberzon completed his post-doctoral training in physiology at Rappaport Institute, Israeli Institute of Technology in Haifa.  He then completed the Psychiatry Residence Program at the University of Michigan, and, since 1992, has been faculty in the University of Michigan’s Department of Psychiatry, Department of Psychology and Neuroscience program.  In 1992, Dr. Liberzon established the Post Traumatic Stress Disorder (PTSD) program at the University of Michigan and Ann Arbor Veterans Administration Medical Center, a program that has since grown and remained on the forefront of biological research of PTSD worldwide.  Dr. Liberzon co-founded the Trauma, Stress, and Anxiety Research Group (TSARG) at the University of Michigan, which includes the Psychiatric Affective Neuroimaging Laboratory, a basic science (wet bench) laboratory, a MiRRR genetic repository and a clinical research group.  

Dr. Liberzon’s primary research interest centers on emotions, stress and stress related disorders like PTSD, particularly in the regulation and dysregulation of stress response systems.  His work integrates cognitive, functional neuroimaging, neuroendocrinological and genetic approaches to study stress, emotions, cognitive-emotion interactions and the effects of emotions on decision making.  In the last 15 years, under Dr. Liberzon’s leadership, the TSARG had be continuously funded with multiple NIMH RO1 grants, VA Career development and NIH K awards, VA merit awards, Army and DoD grants, and more.  Currently there are over 10 active federally funded grants of various kinds awarded to Trauma Stress and Anxiety Research Group members.  Dr. Liberzon has mentored multiple doctoral candidates, post doctoral research fellows and junior faculty members, has published over 150 articles, and has authored and edited several book chapters and reviews including: Brain Imaging Studies of PTSD in the International Handbook of Human Response to Trauma published by AC. Plenum Publishing in 2000 and the forthcoming Neuroimaging in Post Traumatic Stress Disorder in Post Traumatic Stress Disorders by Taylor & Francis. 

He serves on NIH and VA study sections, served as a reviewer for Institute of Medicine, and Department of Defense Congressional reports as well as various international funding agencies. Until recently Dr. Liberzon served as a Chief of Mental Health Service at the Ann Arbor VA Health System, and currently he is an Associate Chair for Academic Development, and the Director of the Psychiatric Residency Research Track at the Department of Psychiatry, University of Michigan.  He is a Fellow of American College of Neuropsychpharmacology, served as a president of Psychiatric Research Society, and editorial Board member for leading journals like Biological Psychiatry and Neuropsychopharmacology.

 

 

Aditya S. Pandey, MD


Aditya S. Pandey, MD


aditya s. pandey, md

Associate Professor, Neurosurgery
Surgical Director of the Comprehensive Stroke Center, Neurosurgery
Associate Residency Program Director, Neurosurgery

267-979-3200
adityap@.umich.edu

Dr. Pandey is an Associate Professor of Neurosurgery (Board Certified) and the Surgical Director of the Primary Stroke Center at the University of Michigan Health System. His clinical interests include clinical expertise in microsurgical and endovascular management of cerebrovascular disorders specifically intracranial hemorrhage. He is currently evaluating the role of different biochemical markers in predicting clinical outcome in patients harboring intracranial or subarachnoid hemorrhage. He is currently a Principal Investigator at the University of Michigan Health System for the MISTIE III trial which will evaluate the role of minimally invasive surgery plus rtPA in managing patients who harbor ICH..

Andrew Sas, MD, PhD


Andrew Sas, MD, PhD


Andrew sas, md, phd

Clinical and Research Fellow, Neurology

734-615-0036
asas@umich.edu

Andrew Sas is the sports neurology clinical fellow and traumatic brain injury research fellow at the University of Michigan. He completed his B.S. in Biology at Dickinson College. He then attended the Medical University of South Carolina where he completed his M.D. and Ph.D. studying neuroimmunology. He completed his neurology residency at the University of Michigan. His research interests include clinical care and transitional research in the area neuroimmunology of traumatic brain injury and sports neurology.

Kyle Sheehan, MD


Kyle Sheehan, MD


kyle sheehan, md

Clinical Lecturer,   Neurosurgery
Clinical Lecturer,  Neurology

734-936-9579
kyleshee@med.umich.edu

Dr. Kyle Sheehan is a Clinical Lecturer in the Departments of Neurology and Neurosurgery at the University of Michigan.  He is originally from Fort Wayne, Indiana. He received bachelor’s degrees from Calvin College in Biology and Psychology in 2001. He received his doctorate of medicine from the Indiana University School of Medicine in 2007. Thereafter, he completed the Neurology Residency Program at the University of Michigan.  From 2011 to 2013, he was the first Neurocritical Care Fellow at the University of Michigan, prior to joining the faculty.  Dr. Sheehan’s research interests include general neurological critical care, management of status epilepticus and the reduction of procedure-related complications. 

Venkatakrishna Rajajee, MBBS


Venkatakrishna Rajajee, MBBS


venkatakrishna rajajee, mbbs

Clinical Associate Professor, Neurosurgery and Neurology
Neurocritical Care Fellowship Director

 734-936-9579

venkatak@med.umich.edu

Dr. Venkatakrishna Rajajee attended medical school at the Madras Medical College in India and went on to do his residency in Neurology at the Mount Sinai Medical Center, New York. He then completed Stroke Neurology and Neurological Critical Care fellowships at the UCLA Medical Center, Los Angeles in 2005. He was in private practice as a General Medical/ Surgical Intensivist in India for 3 years prior to his return to the United States. Since January 2008, he has been a Neurointensivist at the University of Michigan and manages the care of critically ill patients in the Neuro-ICU. His primary research interest is in the use of Critical Care Ultrasound in the Neuro-ICU. He has published articles validating the use of Optic Nerve Ultrasound for the detection of intracranial hypertension in the ICU, the use of real-time ultrasound guidance for the performance of percutaneous tracheostomy and new methods for the predicting the risk of vasospasm-induced cerebral ischemia using Transcranial Doppler. He is the director of the Neurocritical Care fellowship at the University of Michigan. 

Craig A. Williamson, MD


Craig A. Williamson, MD


craig a. williamson, md

Clinical Assistant Professor, Neurosurgery
Clinical Assistant Professor, Neurology

734-936-8224

craigaw@med.umich.edu

Dr. Williamson is a clinical assistant professor in the Department of Neurosurgery. He received a B. S. from the University of Illinois and his M.D. from the University of California, San Francisco. After completing an internal medicine internship at Alameda County Medical Center in Oakland, CA, he completed residency training in neurology at Massachusetts General Hospital and Brigham and Women’s Hospitals in Boston. He subsequently completed fellowship training in neurocritical care at the University of Michigan prior to joining the faculty in 2015. His primary clinical responsibilities involve providing care for patients in the Neurosurgical Critical Care Unit. His research interests include identifying predictors of clinical outcome in patients with traumatic brain injury and cerebrovascular disease, as well as utilizing new technologies to enhance care for individuals with severe brain injuries. 

Guohua Xi, MD


Guohua Xi, MD


GUOHUA XI, MD

Professor, Neurosurgery & Richard C. Schneider Research Professor

734-764-1207

guohuaxi@umich.edu

Dr. Xi received his medical degree from Zhejiang Medical University, China, and had his postdoctoral training at the University of Cincinnati and the University of Michigan. Currently he is Richard C. Schneider Research Professor and Professor of Neurosurgery at the University of Michigan. He is Editorial Board Member of Stroke and Journal of Cerebral Blood Flow and Metabolism, and Associate Editor for Translational Stroke Research.  He is also a member of NIH-ANIE Study Section. His research interests are: 1) the mechanisms of brain edema formation after intracerebral hemorrhage; 2) iron chelation therapy for intracerebral hemorrhage and traumatic brain injury; 3) the mechanisms of early brain injury after subarachnoid hemorrhage.