Postoperative flexible choledochoscopy for residual primary intrahepatic stones.

Postoperative flexible choledochoscopy was carried out in 103 patients with residual biliary calculi. Forty-one patients had residual stones in the common duct, and 63 patients had residual stones in the intrahepatic ducts with or without stones in the common duct. The majority of the intrahepatic stones were primary stones. Postoperative choledochoscopy was very effective in removing residual common duct stones (95% removed, no morbidity). For intrahepatic stones, removal was more difficult and was associated with a higher morbidity (11.2%). Stone extraction through the stenotic intrahepatic ducts was made possible by the balloon dilatation of the ducts. Repeated endoscopic access to the biliary system was made easier by the construction of a hepatico-cutaneous-jejunostomy, which also provides a route to the biliary tree for future stone removal if stone reformation occurs. Complimented by these procedures, postoperative choledochoscopy was successful in removing the residual intrahepatic stones in 82.3% of the patients. At a median follow-up of 17 months, the majority of the patients who had all the stones removed as well as those who had stones left behind were symptom free.