Objective: To assess the safety and curative effect of endoscopic sphincterotomy (EST) and papillary balloon dilatation (EPBD) for choledocholithiasis.

• 目的：探讨经内镜括约肌切开(EST)和内镜乳头气囊扩张(EPBD)胆总管结石的安全性和疗效。