Dr. Caitlin O’Brien is an assistant professor of anesthesiology and critical care medicine at the Johns Hopkins University School of Medicine. She is an attending physician in the pediatric intensive care unit where she cares for children with neurologic, traumatic, and medical illnesses. She serves as the associate medical director of the Hopkins Outreach for Pediatric Education (HOPE) Center.
Dr. O’Brien currently divides her time between clinical practice and research. Her research focuses on improving neurologic outcomes after pediatric cardiac arrest. Current projects include understanding mechanisms of hypoxic-ischemic injury in the developing brain, the use of post-arrest pharmacologic therapy to improve outcomes, and the development of resuscitation algorithms using real-time physiologic feedback.
Dr. O’Brien received her undergraduate degree in biology from the University of Notre Dame and her medical degree from Georgetown University School of Medicine. She completed her residency in combined internal medicine-pediatrics at the Mount Sinai Hospital in New York City, where she also earned a master of public health. Dr. O’Brien completed fellowship training in pediatric critical care medicine at the Johns Hopkins University and completed additional research training while supported on a T32 fellowship. She joined the Johns Hopkins faculty in 2017.