Table 1 Patient characteristics

Gender (male: female)

14:23

Age (years), mean ± SD

52.78 ± 15.48

Child–Pugh (A: B)

31:6

Previous biliary surgery, n (%)

 Hepatectomy

13 (35.14%)

 Cholangiojejunostomy

9 (24.32%)

 Traditional PTCS

7 (18.92%)

 Choledocholithotomy

23 (62.16%)

 Cholecystectomy

36 (97.30%)

Stone Location, n (%)

 Left hepatic

13 (35.14%)

 Right hepatic

10 (27.03%)

 Bilatera hepatic

14 (37.84%)

CBDS, yes. (%)

8 (21.62%)

Biliary Stricture, yes. (%)

15 (40.54%)