Chapter 1 posttraumatic stress disorder: a view from the operating theater.

Posttraumatic stress disorder (PTSD) is an anxiety disorder that develops following exposure to a traumatic event. The prevalence and symptom severity of PTSD is greater in military combat Veterans than the civilian population. Although PTSD is a psychiatric disorder, in Veterans, it is associated with several physical comorbidities, chronic pain, substance abuse, and worse self-reported health status which may predispose them to greater perioperative morbidity and mortality. At present, the effect of surgery on the severity of PTSD is largely unknown. However, the perioperative clinician should consider PTSD a chronic illness associated with the accumulation of risk factors across the life span.