Abstract: 〗［Abstract］ Objective〖HTSS〗〓To evaluate the clinical effect of endoscopic retrograde cholangiopancreatography(ERCP) on choledocholithiasis in patients with Billroth Ⅱ gastrectomy through the comparative study of the laparoscopic choledochotomy and ERCP on choledocholithiasis in patients with Billroth Ⅱ gastrectomy.
〖HTH〗〖WTHZ〗Methods〖HTSS〗〓According to the way of operation，61 patients with choledocholithiasis with Billroth Ⅱ gastrectomy were divided into laparoscopic group(35 cases) and ERCP group(26 cases). The success rate of stone removal, the operation time, the time of getting out of bed after operation, the time of hospitalization after operation,the complications and the hospitalization cost were compared between the two groups.
〖HTH〗〖WTHZ〗Results〖HTSS〗〓The success rate of stone removal in ERCP group was lower than that in laparoscopy group, but the operation time, the time of getting out of bed after operation, the time of hospitalization after operation in ERCP group were less than that in laparoscopy group, the complications were less than that in laparoscopy group, and the hospitalization cost was less than that in laparoscopy group, with statistical significance(P＜005).
〖HTH〗〖WTHZ〗Conclusion〖HTSS〗〓ERCP on choledocholithiasis in patients with Billroth Ⅱ gastrectomy has less trauma, faster recovery and less cost， which is worth popularizing.

Key words: choledocholithiasis, cholangiopancreatography, endoscopic retrograde, gastrectomy