Outcome of long-term biliary stenting for stones in the 2010s: beware the cholecystectomised!

Objective: Endoscopic retrograde cholangiopancreatography (ERCP) is the mainstay of management for most patients with common bile duct stones (CBDS). Duct clearance at initial ERCP may not be achieved in a third of patients, many of whom may be elderly with multiple comorbidities rendering them at potentially high risk for further procedures. We aimed to quantify the rate of biliary sequelae and mortality among a large cohort undergoing a single ERCP with sphincterotomy and stent insertion without having undergone complete ductal clearance (permanent stent insertion, PSI), and to examine factors that may predispose to adverse outcomes. Design/method: Outcomes of all ERCPs undertaken on the intact papilla between February 2010 and January 2020 were distilled to identify a cohort who had undergone PSI for initially irretrievable CBDS. These were subjected to retrospective follow-up until the development of biliary sequelae, death or survival into 2023. Results: There were 2175 index ERCPs for CBDS, of whom 114 met the PSI criteria. Eleven did not survive their index hospitalisation, leaving 103 for follow-up. Of these, 25 (24%) developed late biliary sequelae, 19 (18%) required at least one further ERCP and 8 (8%) died from biliary sequelae. Adverse outcomes were found to be more common among those who had undergone cholecystectomy prior to ERCP, and those with periampullary diverticula. Conclusions: Long-term biliary stenting following sphincterotomy remains a valid option for selected patients with initially irretrievable bile duct stones who could be at high risk from repeat procedures.