Margaret Parker, MD, MCCM, speaks with Nicole O’Brien, MD, about the article, “The Epidemiology of Vasospasm in Children with Moderate-to-Severe Traumatic Brain Injury,” published in the March 2015 issue of Critical Care Medicine. Dr. O’Brien is an Associate Professor of Clinical Medicine in the Department of Critical Care at Nationwide Children’s Hospital in Columbus, Ohio. In this article, Dr. O’Brien and coauthors examine the prevalence of vasospasm in children suffering traumatic brain injury.