近年临床多采用强化胰岛素治疗危重症患者的应激高血糖,降低病死率,减少神经系统病变的发生,尤其可减少多器官功能衰竭的发生及降低感染率[1]。因此,支持胰岛素强化治疗对危重症患者有利的证据越来越多。但也有人对此存有忧虑,特别是对严格控制血糖于正常水平,会不会增加低血糖的发生,从而给患者带来致命性的危害。本研 In recent years, clinical intensive insulin therapy in critically ill patients with stress and hyperglycemia, reduce mortality and reduce the incidence of neurological diseases, in particular, can reduce the incidence of multiple organ failure and reduce the infection rate [1]. Therefore, there is more and more evidence to support the benefit of intensive care in critically ill patients. However, some people have concerns about this, especially for the strict control of blood sugar at normal levels, will increase the incidence of hypoglycemia, thereby giving patients a fatal hazard. This research