• D S Mason, J A Sapala, M H Wood, and M A Sapala.
• Doctors Hospital of Jackson, MI, USA.
• Obes Surg. 1998 Aug 1; 8 (4): 453-60.

BackgroundHypothermia during and after major abdominal surgery decreases host defenses, increases the incidence of coagulopathy and may alter blood pressure, cardiac contractility and myocardial stability.MethodsWe designed a prospective randomized study to compare the benefits of a forced air warming system with warm blanket treatments in minimizing the effects of hypothermia on 64 morbidly obese patients undergoing Roux-en-Y gastric bypass.ResultsPatients in the forced air warming group (n = 32) had significantly higher perioperative body core temperature, lower central venous pressure and blood pressure readings, lower incidence of shivering, less blood loss intraoperatively and achieved a higher post anesthesia Aldrete Score than those patients in the warmed blanket group (n = 32).ConclusionThe forced air warming system is safe, cost effective and beneficial in minimizing the undesirable consequences of hypothermia in morbidly obese patients undergoing Roux-en-Y gastric bypass.

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