动物实验证明,33～35℃轻度低体温虽不能抑制代谢而有显著脑保护作用。这种低体温虽已开始在临床试用于头部外伤患者的管理,但由于其有颅内压低下、脑灌流压上升、代谢低下等对脑外科手术等有益的作用而对手术的适应正逐步扩大。另外,低体温又由于有心肌抑制、血凝功能异常、免 Animal experiments show that mild hypothermia at 33 ~ 35 ℃, although not inhibit the metabolism and significant brain protective effect. Although this hypothermia has begun to be used clinically in the management of patients with head trauma, its adaptation to surgery has been gradually phased out due to its beneficial effects such as decreased intracranial pressure, increased cerebral perfusion pressure, and low metabolic rate on brain surgery expand. In addition, hypothermia due to myocardial inhibition, abnormal blood coagulation, free