Ellis F R, Zwana S L
Br J Anaesth. 1977 Nov;49(11):1123-6. doi: 10.1093/bja/49.11.1123.
Body core and skin temperatures were measured in 20 African patients undergoing herniorrhaphy in hot and humid conditions; one half of the patients received halothane and the other half received diethyl ether. No difference was found between those two groups. Body core temperatures decreased even with an ambient temperature of 28.7 degrees C and a relative humidity of 72% and all sites reached a new thermal equilibrium at 30 min. It is suggested that the level of the re-established thermal equilibrium is a function of the skin to ambient thermal gradient, which depends on the failure of the countercurrent heat exchange mechanism as a result of redistribution of peripheral blood flow.
在炎热潮湿环境下，对20名接受疝气修补术的非洲患者测量了体核温度和皮肤温度；一半患者接受氟烷，另一半接受乙醚。两组之间未发现差异。即使环境温度为28.7摄氏度、相对湿度为72%，体核温度仍会下降，所有部位在30分钟时达到新的热平衡。研究表明，重新建立的热平衡水平是皮肤与环境热梯度的函数，这取决于外周血流重新分布导致逆流热交换机制失效。
