In both groups, the positive rate of Choledocholithiasis and bile sludge at exploration, number of stones in CBD, utilization rate of Electro-hydraulic lithotripsy, estimated blood loss, successful duct clearance, the rate of postoperative bile leakage, postoperative bile duct stricture, reoperation, stone recurrence, and other postoperative complications showed no significant difference (p > 0.05).
Although dilatation of the CBD was not a predictive factor for choledocholithiasis in cholecystectomized patients, the ASGE criteria true positive rate was similar to that of non-cholecystectomized patients.
Definitive testing (MRCP in 2442 [90%], EUS in 67 [2%], ERCP in 659 [24%], intraoperative cholangiogram in 229 [8%], and CBD exploration in 447 [16%]) revealed choledocholithiasis in 1076 [40%] patients.