ObjectiveThe significance of intra or postoperative choledochoscopy in selecting propersurgery for biliary disorders was evaluated. MethodsThe clinical materials of 182 patients undergoingcholedochoscopy were reviewed.Results The rate of residual stones dropped from 35.2 to 9.7 percent in134 cases with choledocholithiasis.With the scopy residual stones were extracted in 12/13 patients , biliarymenbranous stenosis being dilated in 15/30 and the cause of malignant obstruction of lower common bile ductelucidated in 24 instances . Conclusion Intraoperative choledochoscopy is beneficial in the choice of ap-propriate operation for biliary disorders as well as in establishing correct diagnosis that is ambiguous beforesurgery.

Objective:To observe the efficacy of enteral nutrition during perioperation in elderly patients with gastrointestinal tumor.Methods:Forty cases with gastrointestinal tumor were randomized into the experimental group(n=20) and the control group(n=20).The experimental group was given nutritional support with Peptison liquid and was maintained for 7 days.The control group was treated with conventional methods.Results:The experimental group had faster recovery of gastrointestinal function as compared with the control group.The nutrition status and cellular immune function were ameliorated markedly in experimental group.Conclusion:The enteral nutrition in elderly patients with gastrointestinal tumor can promote the recovery of gastrointestinal function,ameliorate nutrition status and cellular immune function.