Efficacy of Forced-Air Warming to Prevent Perioperative Hypothermia in Morbidly-Obese Versus Non-obese Patients.

Background: Hypothermia is associated with an increased postoperative morbidity and mortality. Forced-air warming systems are the most effective methods for its prevention. When using a mattress, a reduction in the area of diffusion of warm air by crushing due to excess weight cannot be ruled out.