Characteristics of biliary calculi in our patient population
| Characteristic | No. (%) of patients* |
|---|---|
| Previous treatment of current stone (n = 21) | 18 (89.5) |
| No. prior treatments, mean (SD) | 1.76 (1.0) |
| Cholecystectomy | 10 (52.6) |
| CBD exploration | 10 (52.6) |
| ERCP | 13 (68.4) |
| PTC | 7 (36.8) |
| SWL | 2 (10.5) |
| Access tract | |
| Cholecystostomy tube | 13 (61.9) |
| Transhepatic tube | 5 (23.8) |
| T-tube | 3 (14.3) |
| Stone location (n = 19) | |
| Gallbladder | 6 (31.6) |
| Common bile duct | 11 (57.9) |
| Cystic duct | 2 (10.5) |
| No. of stones (n = 19) | |
| Single | 7 (36.8) |
| Multiple | 12 (63.2) |
CBD = common bile duct; ERCP = endoscopic retrograde cholangio-pancreatography; PTC = percutaneous trans-hepatic choledochoscopy; SD = standard deviation; SWL = extracorporeal shock wave lithotripsy.
↵* Unless otherwise indicated.