School of Medicine
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Janey S.A. Pratt, MD
Clinical Associate Professor, Surgery - General Surgery
Bio Dr. Janey S.A. Pratt, MD, FACS, FASMBS is a general surgeon who specializes in Robotic Hernia repair and Metabolic and Bariatric Surgery (MBS). She began her career in general surgery at Massachusetts General Hospital, where she was a founding member of the MGH Weight Center. As surgical director she introduced minimally invasive MBS and adolescent MBS to MGH in 2001 and 2007 respectively. In 2011 Dr. Pratt took over as Director at the MGH Weight Center and continued to work on several national committees towards improving access and care of adolescents with severe obesity. Dr. Pratt continued to practice general surgery through out her tenure at MGH seeing patients with breast cancer, hernias, and obesity. She performed advance minimally invasive surgery(MIS) as well as advanced endoscopy.
In 2016 Dr. Pratt moved to California where she began her work at Stanford University, splitting her time between the Lucille Packard Children?s Hospital and the Palo Alto VA. She performs Minimally Invasive MBS at both institutions as well as endoscopy. Dr. Pratt has trained in robotic surgery and performs robotic assisted hernia repairs on complex and simple hernias. As a Clinical Associate Professor of Surgery, Dr. Pratt is involved in training Stanford medical students and residents both in the OR, in the clinic, in the simulation labs and in the class room. Dr. Pratt is the associate program director of the VA MIS fellowship program, and Chair of the Pediatric Committee of the American Society for Metabolic and Bariatric Surgery.
Dr. Pratt has been involved in creating and updated guidelines for Adolescent MBS since 2005. In 2018 she was first author on the ASMBS Pediatric Metabolic and Bariatric Surgery Guidelines. Her other research interests include: MIS approaches to hernia repair and bowel obstruction, pediatric obesity treatment and the use of medications to improve outcomes of MBS. Dr. Pratt frequently lectures on the subject of Adolescent Metabolic and Bariatric Surgery.
Professor of Surgery (Pediatric Surgery) at the Stanford University Medical Center
Current Research and Scholarly Interests One of the current primary interests of the lab is to investigate the mechanisms by which hepatocellular injury and recovery is influenced and controlled by hepatocyte metabolism.
A second focus of investigation is to identify molecular markers of human disease that provide diagnostic function, serve as targets for possible therapeutic manipulation, or provide insight into mechanisms of human disease. Specific diseases of interest include newborn sepsis and Necrotizing Enterocolitis (NEC).
Postdoctoral Research Fellow, Pediatric Surgery
Bio Dr. Orestis Vardoulis is a Postdoctoral Fellow at the Stanford School of Medicine (department of Pediatric Surgery). Orestis completed his studies in Mechanical Engineering at the Aristotle University of Thessaloniki, Greece and received his PhD in Biotechnology and Bioengieneering at the Ecole Polytechnique Federale de Lausanne (EPFL), Switzerland. During his doctoral research, Orestis worked extensively with non invasive methods for hemodynamic monitoring and during his PostDoctroal research he developed flexible electronics for health monitoring. Orestis is an alumnus of the Stanford Biodesign Fellowship program where he conducted extensive research in identifying unmet clinical needs and validated medical technology projects from concept to product. Currently, Orestis works with the Pediatric Health Technology Incubator Laboratory, focusing on clinical needs around umbilical vein catheterization for neonates. In parallel he contributes to the activities of the UCSF - Stanford pediatric device consortium where he coordinates early stage support. Orestis also contributes to the Stanford Wearable Electronics Initiative where he co-founded the affiliated eWear Student and PostDoc association.
Associate Professor of Surgery (Pediatric Surgery) at the Lucile Salter Packard Children's Hospital and, by courtesy, of Bioengineering
Current Research and Scholarly Interests Health Technology Innovation