• Masafumi Idei, Kenji Yoshitani, Takuma Maeda, and Yoshihiko Onishi.
• Department of Anesthesiology, National Cerebral and Cardiovascular Center, Suita 565-8565.
• Masui. 2012 Nov 1;61(11):1230-3.

BackgroundIntraoperative hypothermia is frequently observed during endovascular aneurysm repair (EVAR), leading to postoperative serious sequelae. We evaluated the effectiveness of underbody type forced-air warming blanket against hypothermia during EVAR.MethodsMedical records of 144 patients who had undergone EVAR, were reviewed to investigate the body temperature and whether patients had been extubated in operating rooms.ResultsSeventy nine patients used underbody type forced-air warming blanket (blanket group) and 64 patients no warming system (NW group). The intraoperative lowest core temperature and core temperature at the end of the operation were higher in the blanket group (36.0 degrees C vs 35.6 degrees C, P < 0.001, 36.4 degrees C vs 35.6 degrees C, P < 0.001). In the blanket group extubation was performed in all patients, although five patients could not be extubated in the NW group.ConclusionsUnderbody type forced-air warming blanket is effective to prevent intraoperative hypothermia during EVAR.

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