Abstract: Intestinal failure（IF）is the reduction in intestinal mass or function below the minimal amount necessary for adequate digestion，absorption and appropriate growth in children. It leads to the inability to maintain nutritional，fluid，and electrolyte status while consuming a regular oral diet.These children will depend on enteral nutrition（EN）and parenteral nutrition（PN）support.We need pay more attention to the complications which occured during treatment，such as intestinal failure associated liver disease（IFALD），catheter-related bloodstream infections（CRBSI），small intestinal bacterial overgrowth（SIBO）and micronutrient deficiency.

Key words: intestinal failure, nutrition, complications

摘要： 小儿肠衰竭（intestinal failure，IF）是由于肠切除或梗阻、肠道运动障碍、先天性肠缺陷或疾病导致肠道吸收障碍，使机体无法维持能量、液体、电解质或微量营养素平衡的疾病状态，需要依赖肠内营养（enteral nutrition，EN）和肠外营养（parenteral nutrition，PN）支持。IF治疗过程中会发生一些并发症，包括：肠衰竭相关性肝病、导管相关血流感染、小肠细菌过度生长和微量营养素缺乏等，需要引起临床医生的重视。

关键词: 肠衰竭, 营养, 并发症