In Seattle, we are very fortunate to have a “Dream Team” of mitochondrial specialists. Over the years we have grown from one mito specialist to large team of some of the world’s leading experts in mitochondrial diagnosis, treatment and research. Our experts at the hospital and the Research Institute include:

Dr. Russell Saneto, D.O., Ph.D., Professor

SedenskyBio2011“We’re fighting to improve treatments for children with mitochondrial diseases to give them a better quality of life and help families be families again.”

Families that are dealing with mitochondrial disease are very fortunate to have one of the leading mitochondrial specialists in the country right here in Seattle. Dr. Russell Saneto is part of the University of Washington’s School of Medicine; Pediatrics Department and is part of the Division of Neurology that is based at Seattle Children’s Hospital, where he is currently the acting co-Chair of the Division of Pediatric Neurology.

Dr. Saneto’s clinical interests are in the areas of epilepsy, EEG-video telemetry and mitochondrial disorders. His area of focus for research is the detection and treatment of pediatric epilepsies caused by mitochondrial disease. Dr. Saneto is boarded in Neurology, with special emphasis in Child Neurology and Epilepsy by the American Board of Psychiatry and Neurology.

Dr. Saneto with Mito patient Jack

Prior to coming to Seattle, Dr. Saneto did his pediatric residency, pediatric neurology fellowship and pediatric epilepsy fellowship at the Cleveland Clinic after completing medical school in three years and graduating from Des Moines University, School of Osteopathic Medicine and Health Sciences in 1994.

Prior to going to medical school Dr. Saneto received his PhD in human biochemical genetics at the University of Texas and did a postdoctoral fellowship in developmental neurobiology at UCLA. He also spent time as an assistant professor in Cell Biology and Anatomy at Oregon Health Sciences University.

Dr. Saneto with Mito patient Logan

Dr. Saneto joined Children’s Hospital and the University Of Washington School Of Medicine in the fall of 2001 and he is one of less than 50 doctors around the country that is focusing on mitochondrial disease and is the only doctor focusing on pediatric epilepsy associated with mitochondrial disease.

Dr. Saneto became interested in mitochondrial disease while a pediatric neurology fellow at the Cleveland Clinic as his mentor (Dr. Bruce Cohen) was interested in this disorder. Currently, he is actively involved in the Mitochondrial Medicine Society, serving both as the President, Secretary and Treasurer as well as on the Mitochondrial Medicine Society’s committee on diagnosis. He is also the Principle Investigator for the NIH Natural History Study of Mitochondrial diseases at Seattle Children’s Hospital.

Dr. Saneto’s dream is “an established mitochondrial center to undertake the diagnosis and treatment of our patients. This would enable us to help our families in more ways than just treating the symptoms their children manifest.”

Additional information is available on Seattle Children’s Program for Mitochondrial Medicine and to contact Dr. Saneto directly please email him at

Dr. Philip Morgan, MD

MorganBio2011“My dream in moving to Seattle was to help form a strong group of physicians and researchers for the study of mitochondrial disorders and their treatment. Working with the Mitochondrial Research Guild has gotten us the tools necessary to greatly improve care for mitochondrial patients. These changes have begun to spread outside of Seattle and help ensure a permanent improvement in their care.”

Dr. Morgan with Mito patient Calvin

Phil Morgan, MD, is a principal investigator at Seattle Children’s Research Institute. He is also a professor in the Department of Anesthesiology and Pain Medicine at the University of Washington and Seattle Children’s Hospital. He joined Seattle Children’s in 2008 after working more than 20 years at Case Western Reserve University, where he and Margaret Sedensky, MD, became recognized as leaders in understanding anesthetic interactions in mitochondrial disease. He received an MD from the University of Colorado School of Medicine and he completed a residency and fellowship in anesthesiology at the University Hospitals of Cleveland, and a fellowship in pediatric anesthesiology at the University of Washington.

Dr. Morgan’s research has been focused on the mechanisms that determine sensitivity of mitochondria to anesthesia. Children with mitochondrial disorders have a high likelihood of undergoing a surgical procedure at some point in their treatment, often coupled with complications from anesthesia. One of Dr. Morgan’s major research aims is to help tailor anesthesia by dosage and type to provide the lowest dosage possible for children with mitochondrial diseases.

Seattle Children’s mitochondrial patients undergoing procedures requiring anesthesia have already experienced Dr. Morgan’s dogged commitment to their best possible outcome. Families credit his compassionate concern and willingness to individualize anesthesia to their child’s condition with allaying much of the anxiety connected with surgery.

“I am committed to the safe and compassionate care of children, a goal deeply shared by all of my colleagues at Seattle Children’s Hospital. Caring for mitochondrial patients at SCH is both extremely humbling and fulfilling. I look forward to any day that I can contribute to their care.

For more information on the Morgan Laboratory click here.

Dr. Margaret Sedensky, MD

SedenskyBio2011So many things have changed in mitochondrial research and care of patients in the last several years.  Work that began in worms is now carried out in a mammalian model.  Our local awareness about how to best care for children with mitochondrial disease in the operating room has improved tremendously, and is gaining traction nationally.  We have the ability to follow patients now into adulthood here in Seattle.  The basic science component is exploring in depth mechanisms that produce the consequence of mitochondrial disease in the brain, with the goal of finding cures.”

Margaret Sedensky, MD, is a principal investigator at Seattle Children’s Research Institute and a professor in the Department of Anesthesiology and Pain Medicine at the University of Washington. She joined Seattle Children’s in 2008 after working more than 20 years at University Hospitals of Cleveland, Case Western Reserve University School of Medicine. She and Phil Morgan, MD, are recognized as leaders in understanding anesthetic interactions in mitochondrial disease. She received an MD from the University of Colorado School of Medicine and completed residencies at University Hospitals of Cleveland and a research fellowship in anesthesiology at the University of Washington.

Dr. Sedensky’s lab has had a longstanding interest in anesthetics and the role of mitochondria in determining different aspects of behavior, including sensitivity to anesthetics. Her current research includes studies to better understand whether children with mitochondrial dysfunction are more sensitive to gaseous anesthetics. She also plans to study whether particular intravenous anesthetics are safe in children with mitochondrial disease.

Working in close partnership with her husband, Dr. Phil Morgan, who is an attending anesthesiologist at Seattle Children’s Hospital, her work is genuinely “translational research.” This means her research is “translated” into real therapies for real patients. Mitochondrial patients undergoing surgical procedures requiring anesthesia are already benefiting from changes in procedures based on this research. Dr. Sedensky’s goal is to ultimately prevent unexplained poor outcomes post-anesthesia for patients with mitochondrial disease.

“I think the possibilities for improving the care of patients with mitochondrial disease are huge. No one understands day to day care of these patients better than their families, which is why the input of the Guild is so important to us. It really will take a concerted effort on the part of all of us to make my personal hopes a reality.”

Dr. Sihoun Hahn, MD, PH.D., Professor

HahnBio2011“My dream for my work with mitochondrial disorders is to continue to find ways to treat them more effectively. We are also working to develop a newborn screening program that will allow children to start treatment before they become ill.”

Dr. Hahn joined the faculty at the University of Washington as a professor of pediatrics and attending at Seattle Children’s as head of biochemical genetics program in the division of genetics and developmental medicine and the director of biochemical and molecular genetics laboratory, and R&D laboratory. Dr. Hahn hails from the Mayo Clinic in Rochester, Minnesota, where he was an associate professor of pediatrics, medical genetics, laboratory medicine and pathology and co-director of the biochemical genetics laboratory.

Dr. Hahn is board certified in pediatrics and medical genetics – clinical genetics and clinical biochemical genetics. He received his MD, PhD from Korea University College of Medicine in Seoul, Korea. After finishing his residency in pediatrics at Korea University Medical Center, Dr. Hahn enrolled in medical Genetics fellowship at the National Institutes of Health, Bethesda, Maryland where he was the recipient of a National Research Service Award.

Looking forward, Dr. Hahn hopes to improve clinical practice through integrated laboratory testing – true translational research. He remains a great believer in prevention: identifying illness and providing interventions to patients before symptoms appear is always preferable to treating developed disease. He envisions someday we might have newborn screening available for mitochondrial disorders.

Dr. Sirisak Chanprasert, M.D. Assistant Professor

Dr. Sirisak Chanprasert joined the University of Washington School of Medicine in January 2017 as an assistant professor in the Division of Medical Genetics.

Dr. Chanprasert’s clinical interests are in the areas of metabolic and mitochondrial diseases. His area of focus for research and practice is the transition of care from children to adulthood in individuals with mitochondrial disorders. He is certified by the American Board of Internal Medicine, Clinical Genetics, and the American Board of Medical Subspecialty, Medical Biochemical Genetics. There have been only five physicians in the US since 1982 who are tripled boarded in internal medicine, clinical genetics, and medical biochemical genetics.

Dr. Chanprasert went to medical school at Faculty of Medicine Siriraj Hospital Mahidol University in Bangkok, Thailand. He did internal medicine residency at Bassett Medical Center in Cooperstown, NY. After NY, Sirisak moved to Houston to do medical genetics and medical biochemical genetics at Baylor College of Medicine from June 2014 to July 2015. In addition, he did an Academic and Research Fellowship in mitochondrial medicine at Seattle Children’s Hospital and Seattle Children’s Research Institute from July 2015 to June 2016. Sirisak’s  mentors are Drs. Saneto, Morgan, and Sedensky and he is looking forward to partnering with both of them as well as Dr. Saneto.

Dr. Vincent Hsieh, M.D. Assistant Professor

“Having the opportunity to take care of children with mitochondrial disease has been profoundly rewarding.  I remain committed to developing a deeper understanding and providing the most nuanced and highly personalized care possible.”

Dr. Vincent Hsieh is an Associate Professor in the Department of Anesthesiology and Pain Medicine at the University of Washington and the Director of the Pediatric Anesthesiology Fellowship at Seattle Children’s Hospital.  Dr. Hsieh received a MD from the University of Pittsburgh School of Medicine before completing an anesthesiology residency and pediatric anesthesiology fellowship at Stanford University and the University of Washington, respectively.

Since 2010 Dr. Hsieh has worked extensively with Drs. Morgan and Saneto in the clinical care of patients undergoing procedures at Seattle Children’s Hospital and has consulted on patients with mitochondrial disease at outside hospitals in the region and beyond.  He has helped develop guidelines for the perioperative care of patients with mitochondrial disease, and is dedicated to expanding the understanding of optimal anesthetic care for this important patient population.

“Dreams are today’s answers to tomorrow’s questions.”

—Edgar Cayce