A RCT Study of ERAS in Infants With Choledochal Cyst

1. Optimize preoperative, intraoperative and postoperative perioperative management by learning from the successful experience of accelerated rehabilitation surgery model in other fields. For example: necessary and sufficient preoperative education of children and guardians; short fasting before surgery; oral carbohydrate at 2h before surgery; breast feeding at 4h before surgery (formula feeding at 6h before surgery); improved intestinal preparation; irregular placement of nasogastric tube; the use of general anesthesia plus epidural or sacral block anesthesia during surgery; attention to the whole process of heat preservation; strict control of infusion volume; and selection of minimally invasive hands Methods of operation; early postoperative activity, multi-mode analgesia, etc. 2. According to the pathophysiological characteristics of infants with cholangiectasia, several aspects were studied: minimally invasive surgery；promote gastrointestinal motor function recovery；develop principles and plans for early postoperative feeding；Rational placement of abdominal drainage tube; precise choice of anesthesia method, etc.