School of Medicine
Showing 151-200 of 301 Results
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Frank M. Longo, MD, PhD
George E. and Lucy Becker Professor of Medicine and Professor, by courtesy, of Neurosurgery
Current Research and Scholarly InterestsClinical interests include Alzheimer's disease and Huntington's disease and the development of effective therapeutics for these disorders. Laboratory interests encompass the elucidation of signaling mechanisms relevant to neurodegenerative disorders and the development of novel small molecule approaches for the treatment of neurodegenerative and other neurological disorders.
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Jaime Lopez, MD
Professor of Neurology and Neurological Sciences (Adult Neurology) and, by courtesy, of Neurosurgery
Current Research and Scholarly InterestsMy clinical interests are in the areas of Intraoperative Neurophysiologic Monitoring (IOM), clinical neurophysiology, electromyopgraphy and in the use of botulinum toxins in the treatment of neurologic disorders. Our IOM groups research is in the development of new and innovative techniques for monitoring the nervous system during surgical and endovascular procedures and how these alter surgical management and patient outcomes. I am also active in formulating national IOM practice guidelines.
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Irene L. Llorente
Assistant Professor of Neurosurgery
BioOriginally from Spain, Irene L. Llorente joined the Neurosurgery Department at Stanford University in 2022. Following her undergraduate degree in Molecular Biology at the University of Leon in Spain, Dr. Llorente completed a MS in Molecular Biology and Biomedicine and a Ph.D. in Neuroscience between the Universities of Leon (Spain) and Florence (Italy). She conducted a postdoctoral fellowship in the Neurology Department at the David Geffen School of Medicine at UCLA where she also started her independent career as a Research Assistant Professor. Her research interests are largely directed toward understanding the biology of white matter repair in central nervous system (CNS) disorders, with a special emphasis on human glial biology. She is particularly interested in leveraging the current technologies emerging in the stem cell field to develop more efficient and effective stem cell-based therapies for stroke and vascular dementia patients. These stem cell-based therapies will also apply to other CNS disorders including spinal cord injury, multiple sclerosis, and traumatic brain injury in the future.
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Zhonglin Lyu
Instructor, Neurosurgery
BioDr. Lyu is an instructor at the Department of Neurosurgery, Stanford University School of Medicine. He obtained his PhD at Soochow University, China, where he gained training in designing biomaterials to modulate stem cell behaviors and led multidisciplinary research under the advice of Prof. Hong Chen. During his PhD, he worked as a visiting student researcher at Canary Center for Early Cancer Detection at Stanford University School of Medicine where he gained training in microfluidics and cancer metastasis. Dr. Lyu carried out his postdoctoral research under the guidance of Prof. Jon Park and Wonjae Lee at the Department of Neurosurgery, Stanford University School of Medicine. He developed an in vitro microphysiological model of ischaemic stroke and used it as a platform to systematically evaluate the restorative potential of stem cell therapy.
As an instructor, Dr. Lyu's main research interest is to develop in vitro tissue/organ models to mimic human diseases including neurological diseases and cancer metastases. The goal is to use these models to understand disease mechanisms, to evaluate the safety and efficacy of existing drugs, and to look for new therapeutic targets. -
Kelly Mahaney
Assistant Professor of Neurosurgery
BioDr. Mahaney is a Pediatric Neurosurgeon with clinical interest in Hydrocephalus, Craniovertebral Junction abnormalities, Spasticity, Spinal dysraphism and Myelomeningocele, Central Nervous System tumors, and Pediatric Epilepsy surgery. She completed residency training at the University of Iowa Hospitals and Clinics and subspecialty Pediatric Neurosurgery training at The Hospital for Sick Children in Toronto and the Barrow Neurologic Institute at Phoenix Children's Hospital. She is interested in advancing Neuro-endoscopic techniques in Pediatric Neurosurgical practice. Dr. Mahaney's research focuses on delineating the role of iron in the development of post-hemorrhagic hydrocephalus.
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Cormac Maher, MD, FAANS, FAAP, FACS
Botha Chan Endowed Professor
BioDr. Maher is a board-certified, fellowship-trained neurosurgeon with Stanford Health Care and is chief of neurosurgery at Lucile Packard Children’s Hospital Stanford. He is also the Botha Chan Endowed Professor in the Department of Neurosurgery, Division of Pediatric Neurosurgery at Stanford University School of Medicine.
Dr. Maher specializes in treating children who have neurological disorders — conditions of the brain, spinal cord, and nerves. In his adult practice, he offers particular expertise in treating Chiari malformation, which involves a portion of the brain pushing down into the spinal canal, and tethered spinal cord. Dr. Maher has served on many national organization committees for research and training in neurosurgery.
Dr. Maher has published more than 190 articles in peer-reviewed journals, including Journal of Neurosurgery, Neurosurgery, and Journal of Neurosurgery: Pediatrics. He has also served on the editorial boards for publications and organizations including the Journal of Neurosurgery Publishing Group. He has performed ad hoc review for many other journals and grant review for organizations including the American Association of Neurological Surgeons (AANS).
Dr. Maher has delivered hundreds of presentations at symposiums and conferences for national and international audiences. He is also a fellow of the American Academy of Pediatrics, AANS, and American College of Surgeons. -
Stephen Lawrence McKenna, MD
Clinical Professor (Affiliated), Neurosurgery
Staff, Neurosurgery OperationsBioDr. Stephen McKenna is a founding member of the Stanford Partnership for Spinal Cord Injury and Repair. He is currently the Chief of the Rehabilitation Trauma Center; as well as, the site director of the Advanced SCI Medicine Fellowship at SCVMC.
As a Neurocritical Care physician, Dr. McKenna specializes in ventilator-dependent Spinal Cord and Traumatic Brain Injury, as well as neuromuscular diseases. He has led first-in-human clinical trials ranging from vaccines for HIV to stem cell-derived oligodendrocyte progenitor cell-based therapies for SCI. Dr. McKenna is Chairman of the Respiratory Section of the International Standards to Document Autonomic Function after SCI (ISAFSCI) and co-chair of the American Spinal Cord Injury Association (ASIA) Research Education Subcommittee.
Clinical Focus:
Spinal Cord Injury
Traumatic Brain Injury
Amyotrophic lateral sclerosis (ALS)
Guillain-Barre syndrome (GBS)
Anti-NMDA receptor encephalitis
Neuromyelitis Optica (Devic disease)
Professional Education:
Board Certification: Neurocritical Care, UCNS (2008)
Board Certification: Internal Medicine, ABIM (2005)
Internship & Residency: Santa Clara Valley Medical Center (2002,2005)
Medical Education: Stanford University School of Medicine (2002)
Book Chapter:
Shah A, Shem K, McKenna SL, Berlly M. Management of Respiratory Failure in Spinal Cord Injury. Spinal Cord Medicine (Hardcover) by Steven, M.D. Kirshblum (Editor) Lippincott Williams & Wilkins; 2011
Selected Publications:
Exploration of surgical blood pressure management & expected motor recovery in individuals with traumatic SCI.
Ehsanian R, et al, McKenna SL.
Spinal Cord. 2020 Mar;58(3):377-386. PMID: 31649323
A Novel Pharyngeal Clearance Maneuver for Initial Tracheostomy Tube Cuff Deflation in High Cervical Tetraplegia.
Ehsanian R, et al, McKenna S.
Am J Phys Med Rehabil. 2019 Sep;98(9):835-838. PMID: 30973517
Burden of Care Implications & Association of Intracranial Hypertension with Extremely Severe Post-traumatic Amnesia After TBI: A 5-Year Retrospective Longitudinal Study.
Quach NT, et al
Front Neurol. 2019 Jan 29;10:34. PMID: 30761071
Venous Thromboembolism is Associated with Lack of Vitamin D Supplementation in Patients with SCI & Low Vitamin D Levels.
Ehsanian R, et al
PM R. 2019 Feb;11(2):125-134. PMID: 30300766
Pulmonary outcomes following specialized respiratory management for acute cervical SCI: a retrospective analysis.
Zakrasek EC, et al, McKenna SL
Spinal Cord, 2017; Feb 21. PMID: 28220822
Dose Response Effect of Exposure to Hypotension on Expected Neurological Recovery in Individuals with Traumatic SCI.
ARCHIVES OF PM&R
Reza, E., et al, McKenna, S.
2016: DOI: http://dx.doi.org/10.1016/j.apmr.2016.09.016
Combined SCI & TBI: recovery of forelimb function after unilateral cervical SCI is retarded by contralateral traumatic brain injury (TBI), & ipsilateral TBI balances the effects of SCI on paw placement.
EXPERIMENTAL NEUROLOGY
Inoue T, et al.
2013 Oct 248: 136-47. PMID: 23770071
Functional electrical stimulation in SCI respiratory care.
TOPICS IN SPINAL CORD REHAB.
R Jarosz, et al, S McKenna
2012:Vol. 18, No. 4, 315-321. PMID: 23459661
Impact of mean arterial blood pressure during the first seven days post SCI.
TOPICS IN SPINAL CORD REHAB.
J Cohn, et al
2010: DOI: http://dx.doi.org/10.1310/sci1503-96
Successful Pregnancy & Delivery in a C1 ASIA A spinal cord injured Woman: The Role of Coordinated Care Between PM&R & Obstetrics Services: A Case Report.
PM&R
Lin C, et al
2010: DOI: http://dx.doi.org/10.1016/j.pmrj.2010.07.461
The impact of project closure on HIV incidence and mortality in a cohort of couples in Lusaka, Zambia.
AIDS CARE
Stephenson R, et al
2008 Jul;20(6):683-91. PMID: 18576170
Rapid HIV testing & counseling for voluntary testing centers in Africa.
AIDS
McKenna SL et al
1997 Sep;11 Suppl 1:S103-10. PMID: 9376093 -
Paul Salomon Mischel
Fortinet Founders Professor and Professor, by courtesy, of Neurosurgery
Current Research and Scholarly InterestsMy research bridges cancer genetics, signal transduction and cellular metabolism as we aim to understand the molecular mechanisms that drive cancer development, progression, and drug resistance. We have made a series of discoveries that have identified a central role for ecDNA (extrachromosomal DNA) in cancer development, progression, accelerated tumor evolution and drug resistance.
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Michelle Monje
Milan Gambhir Professor of Pediatric Neuro-Oncology and Professor, by courtesy, of Neurosurgery, of Pediatrics, of Pathology and of Psychiatry and Behavioral Sciences
Current Research and Scholarly InterestsThe Monje Lab studies the molecular and cellular mechanisms of postnatal neurodevelopment. This includes microenvironmental influences on neural precursor cell fate choice in normal neurodevelopment and in disease states.
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Seema Nagpal, MD
Clinical Professor, Neurology & Neurological Sciences
Clinical Professor (By courtesy), NeurosurgeryCurrent Research and Scholarly InterestsI'm a board certified neuro-oncologist who treats both primary brain tumors as well as metastatic disease to the brain and nervous system. My research concentrates on clinical trials for patients with late-stage central nervous system cancer. I have a special interest in leptomeningeal disease, a devastating complication of lung and breast cancers. I collaborate with Stanford scientists to detect this disease earlier, and with our breast and lung oncologists to improve outcomes for patients.
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Jayakar V. Nayak, MD, PhD
Associate Professor of Otolaryngology - Head & Neck Surgery (OHNS) and, by courtesy, of Neurosurgery
Current Research and Scholarly InterestsUpper Airway Stem Cell Biology, Fate, and Repair/Regeneration of the Airway Epithelium to treat Upper and Lower Airway Disorders
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Ryan Nitta
Senior Research Scientist, Neurosurgery
Current Role at StanfordThe main project of the Li lab is to elucidate the signaling pathways responsible for maintaining and initiating brain tumor growth. Previously the Li lab has identified an interesting protein, known as casein kinase 2, which plays an integral role in adult brain tumor growth. My goal is to expand on this initial finding and determine if casein kinase 2 could be a therapeutically relevant drug target in adult brain tumors and whether this protein plays a role in pediatric brain tumors. The role of the candidate would be the lead researcher on these projects, as well as managing and leading the undergraduate and medical students in the lab. In addition, I am responsible for maintaining the laboratory and assisting in grant writing.
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Paul Nuyujukian
Assistant Professor of Bioengineering and of Neurosurgery and, by courtesy, of Electrical Engineering
Current Research and Scholarly InterestsOur group explores neuroengineering and its application to both basic and clinical neuroscience. Our goal is to develop brain-machine interfaces as a platform technology for a variety of brain-related medical conditions including stroke and epilepsy.
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Thomas Osborne, MD
Adjunct Clinical Professor, Neurosurgery
BioThomas Osborne, MD is board certified in Diagnostic Imaging and Neuroradiology.
He has devoted his professional career to accelerating advancements at the intersection of healthcare, technology, and business. He is driven to solve challenges for broad positive impact and shared success.
Dr. Osborne’s academic publications cover a diversity of topics such as cancer, infectious disease, neurologic disorders, surgery, pain and anxiety, climate health, falls, elder care, determinants of health, telehealth, diagnostics, predictive analytics, drug repurposing, cost savings, employee morale, strategy, efficiencies, health risk, safety, and the integration of advanced technologies into clinical practice.
Dr. Osborne received his medical degree from Dartmouth Medical School and completed his clinical residency and fellowship at Harvard hospitals. He has been an advisor and mentor to other healthcare leaders for most of his career. He is also the Chief Medical Officer at Microsoft, Federal Civilian.
https://www.linkedin.com/in/tomosbornemd/ -
Juan J. Cardona, M.D.
Visiting Instructor, Neurosurgery
BioJuan J. Cardona, M.D. completed his medical school education at Institución Universitaria Visión de las Américas in the “coffee axis” in Pereira, Colombia. During this time, he led the neurosciences research group focusing on neuroanatomy, co-founded a student interest group devoted to promoting early exposure in surgical specialties of interest, completed national and international sub-internships in neurosurgery and neurology, and pioneered clinical electives centered on neurosurgery at the end of his internship. He was instrumental in advancing research practices at his university, where he held the positions of both Director of Scientific Development and Research in Surgical Sciences.
After graduating and being determined to pursue a neurosurgery residency in the United States, he honed his English skills at Florida Atlantic University before undertaking postgraduate medical education. Posteriorly, he delved into the investigative paradigm termed “reverse translational anatomy research” during his Clinical Anatomy Fellowship at the Department of Neurosurgery at Tulane University, where he dedicated two years to advanced training and research on neurosurgical anatomy under the mentorship of Dr. R. Shane Tubbs and Dr. Joe Iwanaga. Throughout his tenure, he actively participated within the department and completed a clinical and surgical observership at East Jefferson General Hospital in New Orleans under the guidance of Dr. Aaron S. Dumont and Dr. Johnny Delashaw. Subsequently, he joined the Clinical Neuro-Oncology Laboratory at the Department of Neurosurgery at Stanford University to study the indications and outcomes of stereotactic radiosurgery as a noninvasive treatment modality under the leadership of Dr. Steven D. Chang and Dr. David J. Park.
His diverse interests span all areas of neurosurgery, particularly in cerebrovascular, endovascular, and skull base surgery, peripheral nerve disease, CNS and PNS tumors, and cutting-edge neurosurgical techniques. Such interests have led to his authorship or co-authorship of over 50 peer-reviewed publications. Moreover, this work has resulted in 23 national and international presentations, where he has received multiple awards. In addition, he has served as an invited reviewer for numerous peer-reviewed articles across five leading journals and was a support reviewer for Chapter 47 in the 43rd edition of Gray’s Anatomy. -
Theo Palmer
Professor of Neurosurgery, Emeritus
Current Research and Scholarly InterestsMembers of the Palmer Lab study the biology of neural stem cells in brain development and in the adult. Our primary goal is to understand how genes and environment synergize in influencing stem cell behavior during development and how mild genetic or environmental risk factors for disease may synergize in their detrimental effects on brain development or in the risk of neuronal loss in age-related degenerative disease.
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David J. Park, MD, PhD, FCNS
Clinical Assistant Professor, Neurosurgery
Current Research and Scholarly InterestsThe goal of our Laboratory is to improve patients’ care and outcomes by analyzing clinical data from thousands of patients treated at our institution. Our current primary areas of interest are benign tumors, brain and spine metastases, and neurogenetic disorders.
Our lab is led by Dr. Steven D. Chang and Dr. David J. Park and proudly hosts talented young clinical scientists from around the world.
Link: https://med.stanford.edu/neurosurgery/research/NeuroOncLab.html -
Jon Park, MD, FRCSC
Saunders Family Professor
Current Research and Scholarly InterestsNon-fusion dynamic spinal stabilization, artificial disc technologies, and regenerative spinal technologies.
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Sonia Partap
Clinical Professor, Neurology
Clinical Professor (By courtesy), Neurosurgery
Clinical Professor, PediatricsCurrent Research and Scholarly InterestsMy research interests involve the epidemiology, treatment and diagnosis of pediatric and young adult brain tumors. I am also interested in long-term neurologic effects and designing clinical trials to treat brain and spinal cord tumors.
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Josef Parvizi, MD, PhD
Professor of Neurology and Neurological Sciences (Adult Neurology) and, by courtesy, of Neurosurgery
BioDr. Parvizi completed his medical internship at Mayo Clinic, neurology training at Harvard, and subspecialty training in clinical neurophysiology and epilepsy at UCLA before joining the Department of Neurology and Neurological Sciences at Stanford in 2007. Dr. Parvizi directs the Stanford Program for Medication Resistant Epilepsies and specializes in surgical treatments of intractable focal epilepsies. Dr. Parvizi is the principal investigator in the Laboratory of Behavioral and Cognitive Neuroscience, where he leads a team of investigators to study the human brain. http://med.stanford.edu/parvizi-lab.html.
Epilepsy patient story: https://www.youtube.com/watch?v=HXy-gXg0t94&t=3s -
Claudia Katharina Petritsch
Associate Professor (Research) of Neurosurgery
On Partial Leave from 12/24/2024 To 10/31/2025Current Research and Scholarly InterestsThe Petritsch lab broadly investigates underlying causes for the intra-tumoral heterogeneity and immune suppression in brain tumors from a neuro-developmental perspective. Defective cell fate decisions fuel the intra-humoral heterogeneity and plasticity in human brain tumors and may contribute to immune suppression. We use patient-derived models as avatars to study how brain cells control the fate of their progeny, whereby we unravel novel points of vulnerabilities in brain tumor cells.
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Patrick Pezeshkian, MD, FAANS
Clinical Associate Professor (Affiliated), Neurosurgery
BioAfter completing his residency training in neurosurgery and a fellowship in Stereotactic and Functional Neurosurgery at UCLA, Dr. Pezeshkian joined the faculty at Kaiser Permanente Neurosurgery & Neuroscience department at Redwood City, California.
Dr. Pezeshkians’ areas of expertise and neurosurgical focus are Deep Brain Stimulation surgery for movement and neuropsychiatric disorders, adult epilepsy surgery,, neuromodulation procedures for chronic refractory craniofacial pain syndromes and peripheral nerve surgeries for tumors and trauma.
Dr. Pezeshkian is the Regional Director of the Functional Neurosurgery Program at the Northern California Kaiser Permanente healthcare system. -
Harold Westley Phillips
Assistant Professor of Neurosurgery (Pediatric Neurosurgery)
BioH. Westley Phillips, MD is an Assistant Professor of Neurosurgery at Stanford University where he is a neurosurgeon-scientist specializing in pediatric neurosurgery with a special interest in epilepsy. Dr. Phillips received his undergraduate degree at Yale University where he was a member of the Varsity Football Team and received a Fulbright Scholarship. He completed an MD at the Perelman School of Medicine at the University of Pennsylvania, graduating with a certificate of distinction in the Clinical Neuroscience Training Program. He completed neurosurgical residency at UCLA where he received 2 years of NIH funding to investigate the genetic underpinnings of epilepsy. He received fellowship training in pediatric epilepsy surgery and genetics research at Boston Children’s Hospital as well as pediatric neurosurgery at the University of Pittsburgh Medical Center, Children’s Hospital of Pittsburgh before his arrival at Stanford. At Stanford, Dr. Phillips leads a molecular genetics laboratory and has a particular interest in defining and further understanding somatic mosaicism and its role in epileptogenesis. He has published manuscripts in leading academic journals including Nature: Genetics, JAMA Neurology, Journal of Neuroscience, Scientific Reports, Epilepsia and Neurology. He is dedicated to improving the treatment and outcomes for children with drug resistant epilepsy through innovative research and cutting-edge surgical techniques.
