The intraoperative administration of ketamine to burned U.S. service members does not increase the incidence of post-traumatic stress disorder.

ABSTRACT Aim: Patients with severe burns typically undergo multiple surgeries, and ketamine is often used as part of the multimodal anesthetic regimen during such surgeries. The anesthetic ketamine is an N-methyl-D-aspartate receptor antagonist that also provides analgesia at subanesthetic doses, but the psychoactive side effects of ketamine have caused concern about its potential psychological effects on a combat-wounded population. Post-traumatic stress disorder (PTSD) affects approximately 30% of burned U.S. service members injured in Operation Iraqi Freedom/Operation Enduring Freedom. A preliminary analysis by our research group reported that patients who received perioperative ketamine had a significantly lower prevalence of PTSD than those injured service members who did not receive ketamine. We have now expanded this research to examine the relationship between ketamine and PTSD development in a much larger population. Methods: A retrospective analysis on data from service members being treated for...