Timing of cholecystectomy after endoscopic sphincterotomy

Project number: 
Approval date: 
Monday, October 28, 2013
Principal Investigator: 
University of British Columbia (UBC)
Funding Agency: 
not grant funded
Datasets requested: 
consolidation - census geocodes
Medical Services Plan (BC Ministry of Health)
Deaths (BC Vital Statistics Agency)
Consolidation registry (Ministry of Health)
Hospital Separations (BC Ministry of Health)
Consolidation - demographic (Ministry of Health)
Research objective: 

Research Questions
1. Does timing of cholecystectomy after endoscopic sphincterotomy significantly affect patient outcomes?
2. What is the rate of biliary complications after early and delayed cholecystectomy?
3. To what degree does geographic variation affect patient care in regards to complicated biliary disease?

1. There is a great deal of geographical practice variation across BC in regards to management of symptomatic choledocholithiasis
2. Delayed cholecystectomy is associated with an increased rate of biliary complications
3. Early cholecystectomy is associated with significant clinical benefit justifying its routine use


Conference abstract/presentation

  • Mador BD, Nathens AB, Xiong W, Panton ONM, Hameed SM. Timing of cholecystectomy following endoscopic sphincterotomy: A population-based study. Accepted abstract at the Society of American Gastrointestinal and Endoscopic Surgeons (SAGES) Annual Meeting, March 19, 2016, Boston, MA.

Page last revised: September 2, 2019