Objective:To investigate the clinical significance of the treatment of intrahepatic bile duct stones with fiber choledochoscope combined with intraoperative ultrasound.
Methods :The clinical data of 185 cases with intrahepatic bile duct stone were analysed retrospectively, included 96 cases with stone removal by fiber choledochoscope intraand postoperatively（choledochoscope group）, and 89 cases with stone removal by fiber choledochoscope combined with intraoperative ultrasound (combined group).
Results:The rateo of bile duct retained stones in choledochoscope group (9.38%) was higher than that in combined group (2.08%)（P=0.041）, and the rate of bile duct recurrent stones in choledochoscope group (12.34%) was higher than that in combined group (3.61%)（P=0.036）.There was no significant differences between the two groups in the occarrence of cholangitis (P=0.087), but 3 cases of severe cholangitis required reoperation in choledochoscope group.
Conclusions:Fiber choledochoscope combined with intraoperative ultrasound can decrease the rate of bile duct retained stones and bile duct recurrent stones, and can improve the therapeutic effect.