Influence of bile duct diameter on the therapeutic quality of endoscopic balloon sphincteroplasty.

摘要: Background and Study Aims: Endoscopic balloon sphincteroplasty (EBS) has been reported to be a safe alternative sphincterotomy for the treatment of bile duct stones. We evaluated factors which influence therapeutic efficacy EBS. Patients Methods: A total 118 consecutive patients with stones were treated by After conventional endoscopic retrograde cholangiography (ERC), EBS was done using biliary dilation catheter (balloon diameter, 8 mm). The then cleared Dormia baskets or retrievel catheters. When greater than mm in mechanical lithotripsy performed before extraction. Complete stone clearance assessed balloon-ERC intraductal ultrasonography. Therapeutic univariate multivariate analysis. classified into three groups according diameter: nondilated (bile 15 Results: In 113 (96%) patients, completely one six sessions (mean 1.6 sessions). group, 24 28 (85 %) session 1.2 sessions), without use 23 (82 patients. mildly dilated 38 (61%) 1.5 contrast, severely only 16 52 (31 2.0 Stone size, number stones, Iithotripsy independent variables influenced success after Conclusion: is diameter may good indicator efficacy. ducts (> mm), limited effectiveness.