Abstract:Objective: To evaluate the change of blood sugar in diabetes mellitus after choledochoscopy, and to analyze the relative reasons. Methods: 26 patients who underwent the choledochoscopy received the tests of blood sugar preoperatively, and 1, 2 hours, 1, 3, and 5 days postoperatively. Results: Postoperative blood sugar increased significantly in comparison with the preoperative one (P <0.05), and reached the preoperative level 1 day postoperatively (P >0.05). There was a positive correlation between blood sugar increase and surgery duration, diabetic duration, and preoperative blood sugar. The diabetic complications were relative to the postoperative blood sugar. Conclusions: Preoperative correct estimate of diabetic condition, shorter surgery time, inimized surgical damage, and good control of postoperative complications should be noted for postoperative vision increase.