危重症患者易发生胃肠功能障碍及胃肠功能衰竭。胃肠功能障碍也被认为是多器官功能障碍综合征(M ODS)的启动因素之一。及早发现胃肠功能障碍是防止病情发展的关键。故寻找胃肠功能衰竭早期诊断指标、胃肠动力异常时各种胃肠激素的变化有着重要的临床意义。近年来,胃肠激素的研 Critically ill patients prone to gastrointestinal dysfunction and gastrointestinal failure. Gastrointestinal dysfunction is also considered as one of the initiators of multiple organ dysfunction syndrome (M ODS). Early detection of gastrointestinal dysfunction is the key to preventing the progression of the disease. Therefore, looking for early diagnosis of gastrointestinal failure indicators, abnormal gastrointestinal motility when a variety of gastrointestinal hormones have important clinical significance. In recent years, gastrointestinal hormone research