Outcomes of endoscopic sphincterotomy vs open choledochotomy for common bile duct stones

Figure 1 Flow diagram of patient selection. EST: Endoscopic sphincterotomy; OCT: Open choledochotomy.

Figure 2 Distal common bile duct angulation measured based on magnetic resonance cholangiopancreatography. A: A case with acute distal common bile duct angulation (< 145°); B: A case without acute distal common bile duct angulation (> 145°).

Figure 3 Kaplan-Meier analysis with the log-rank test for recurrence of common bile duct stones in the endoscopic sphincterotomy and open choledochotomy groups. A: Before matching; B: After matching. EST: Endoscopic sphincterotomy; OCT: Open choledochotomy.

Figure 4 Receiver operating characteristic curve for the logistic regression model predicting recurrence of common bile duct stones. This included common bile duct diameter ≥ 15 mm, multiple common bile duct stones, and distal common bile duct angle ≤ 145°. AUC = 0.81, 95%CI: 0.76-0.87, P < 0.001.