264 Complete Sphincterotomy PLUS Large Balloon Dilatation of Sphincter of Oddi Versus Endoscopic Sphincterotomy for Large Bile Duct Stones Removal: A Large Prospective Multicenter Randomized Study

Because of impossibility of stone extraction in 10% of cases after endoscopic sphincterotomy (ES), mostly because of stone’s size, adjunction of a mechanical lithotripsy (ML) is well established to improve clearance of CBD stones. Because of inconstant success, high cost, and length of ML procedure, an alternative method was proposed: Endoscopic Sphincterotomy plus Large Balloon Dilatation (ESLBD). We conducted this study to determine the superiority of ESLBD on conventional treatment (CONV: ES +/- ML) for the treatment of large bile duct stone after standard ES.