Bock M, Müller J, Bach A, Böhrer H, Martin E, Motsch J
Department of Anaesthesiology, University of Heidelberg, Germany.
Br J Anaesth. 1998 Feb;80(2):159-63. doi: 10.1093/bja/80.2.159.
We have investigated the influence of active warming before and during operation on blood loss, transfusion requirements, duration of stay in the post-anaesthesia care unit (PACU) and perioperative costs in 40 patients undergoing major abdominal surgery. Patients were allocated randomly to one of two groups: in the study group (n = 20), patients were actively warmed using forced air for 30 min before induction of general anaesthesia and during anaesthesia. Passive protection against heat loss consisted of circulating water mattresses, blankets and fluid warming devices, and was used both in the active warming group and in the control group (n = 20). At the end of surgery the change in core temperature was significantly less in the group of actively warmed patients (0.5 (SD 0.8) degree C vs 1.5 (0.8) degree C; P < or = 0.01). Blood loss and transfusion requirements were less in the actively warmed patients, who had a shorter duration of stay in the PACU (94 (SD 42) min vs 217 (169) min; P < or = 0.01) and a 24% reduction in total anaesthetic costs.
我们研究了手术前及手术过程中主动加温对40例接受腹部大手术患者的失血量、输血需求、在麻醉后护理单元（PACU）的停留时间及围手术期费用的影响。患者被随机分为两组：研究组（n = 20），在全身麻醉诱导前及麻醉期间使用强制空气主动加温30分钟。防止热量散失的被动措施包括循环水床垫、毯子及液体加温装置，主动加温和对照组（n = 20）均使用。手术结束时，主动加温患者组的核心体温变化显著更小（0.5（标准差0.8）℃ vs 1.5（0.8）℃；P≤0.01）。主动加温患者的失血量和输血需求更少，在PACU的停留时间更短（94（标准差42）分钟 vs 217（169）分钟；P≤0.01），总麻醉费用降低了24%。
