重症病人的营养支持是营养支持领域的难点。外科重症病人的治疗包括手术、感染控制、脏器功能障碍的纠正和维护,也涵盖营养支持。外科危重病人的营养支持与普通外科病人有很大区别,机体处于严重应激状态,分解代谢占主导,自身组织大量消耗。因此,外科重症病人的营养支持有其独特性。本文首先讨论能量和蛋白质供给的目标量,继而探讨营养支持方式和时间的选择,血糖的合适 Nutritional support for critically ill patients is a difficult area in nutrition support. Surgical treatment for critically ill patients includes surgery, infection control, correction and maintenance of organ dysfunction, and nutritional support. The nutritional support of critically ill patients in surgery and general surgery patients are very different from the body in a state of severe stress, catabolism dominated, a lot of their own tissue consumption. Therefore, nutritional support for critically ill surgical patients is unique. This article first discusses the target amount of energy and protein supply, then discusses the choice of nutritional support and time, the appropriate blood glucose