Endoscopic management of postoperative bile leaks

Abstract

Background: Significant bile leak as an uncommon complication after biliary tract surgery may constitute a serious and difficult management problem. Surgical management of biliary fistulae is associated with high morbidity and mortality. Biliary endoscopic procedures have become the treatment of choice for management of biliary fistulae.

Methods: Ninety patients presented with bile leaks after cholecystectomy (open cholecystectomy in 45 patients, cholecystectomy with common bile duct exploration in 20 and laparoscopic cholecystectomy in 25). The presence of bile leaks was confirmed by ERCP and the appearance of bile in percutaneous drainage of abdominal collections. Of the 90 patients with postoperative bile leaks, 18 patients had complete transaction of the common bile duct by ERCP and were subjected to bilioenteric anastomosis. In the remaining patients after cholangiography and localization of the site of bile leaks, therapeutic procedures like sphincterotomy, biliary stenting and nasobiliary drainage (NBD) were performed. If residual stones were seen in the common bile duct, sphincterotomy was followed by stone extraction using dormia basket. Nasobiliary drain or stents of 7F size were placed according to the standard techniques. The NBD was removed when bile leak stopped and closure of the fistula confirmed cholangiographically. The stents were removed after an interval of 6-8 weeks.

Results: Bile leaks in 72 patients occurred in the cystic duct (38 patients), the common bile duct (30), and the right hepatic duct (4). Of the 72 patients with post-operative bile leak, 24 had associated retained common bile duct stones and 1 had ascaris in common bile duct. All the 72 patients were subjected to therapeutic procedures including sphincterotomy with stone extraction followed by biliary stenting (24 patients), removal of ascaris and biliary stenting (1), sphincterotomy with biliary stenting (18), sphincterotomy with NBD (12), biliary stenting alone (12), and NBD alone (5). Bile leaks stopped in all patients at a median interval of 3 days (range 3-16 days) after endoscopic interventions. No difference was observed in efficacy and in time for the treatment of bile leak by sphincterotomy with endoprosthesis or endoprosthesis alone in patients with bile leak after surgery.

Conclusions: Post-cholecystectomy bile leaks occur most commonly in the cystic duct and associated common bile duct stones are found in one-third of cases. Endoscopic therapy is safe and effective in the management of bile leaks and fistulae after surgery. Sphincterotomy with endoprosthesis or endoprosthesis alone is equally effective in the management of postoperative bile leak.