Abstract：Most critically ill children are in a state of serious stress and tend to develop malnutrition, which may reduce the body's ability to fight against diseases and repair damaged tissues and thus aggravate their conditions. Reasonable and effective nutritional support for critically ill children can improve their nutritional status and prognosis, and so it is necessary to offer nutritional support for critically ill children. This article reviews the research on nutritional support for critically ill children and the current status of clinical application. It also introduces the main methods for nutritional support, including enteral nutrition and parenteral nutrition, and elaborates on the new methods for nutritional support, such as early enteral nutrition, enteral immunonutrition, and supplementary parenteral nutrition, in order to provide a reference for nutritional support for critically ill children.
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