Wongprasartsuk P, Konstantatos A, McRae R
Alfred Hospital Department of Anaesthesia and Pain Management, Melbourne, Victoria.
Anaesth Intensive Care. 1998 Jun;26(3):267-71. doi: 10.1177/0310057X9802600306.
Actively warming patients during surgery is considered the best method of preventing inadvertent hypothermia. In order to investigate the effect of forced air warming on postoperative oxygen consumption, we studied 26 patients undergoing orthopaedic surgery using a prospective, randomized trial design. We measured oxygen consumption, carbon dioxide production, temperature, thermal comfort and pain scores. Apart from intraoperative temperature, there were no significant differences in these measurements between the two groups. This study demonstrated the gradual heat gain and also the potential for hyperthermia from pre- and intraoperative forced air warming. We conclude that forced air warming is not necessary for moderate duration non-body-cavity surgery if effective preinduction covering of patients and minimal surgical exposure is achieved.
手术期间积极为患者保暖被认为是预防意外体温过低的最佳方法。为了研究强制空气加温对术后耗氧量的影响，我们采用前瞻性随机试验设计，对26例接受骨科手术的患者进行了研究。我们测量了耗氧量、二氧化碳生成量、体温、热舒适度和疼痛评分。除术中体温外，两组在这些测量结果上没有显著差异。本研究表明，术前和术中强制空气加温会使体温逐渐升高，也有导致体温过高的可能性。我们得出结论，如果能在诱导前有效覆盖患者并尽量减少手术暴露，那么对于中等时长的非体腔手术，强制空气加温并非必要。
