Table 1.
Patient characteristics.
| Common Bile Duct Stone (n = 80) |
Malignat Biliary Obstruction (n = 60) |
Cholecystitis (n = 30) |
Total (n = 170) |
|
|---|---|---|---|---|
| Age (mean ± SD) | 73.5 ± 14.2 | 72.4 ± 12.6 | 72.4 ± 11.3 | 72.9 ± 13.1 |
| Sex (male: female) | 54:26 | 37:23 | 16:14 | 107:63 |
| Disease | ||||
| Common bile duct stone | 80 | – | – | 80 |
| Malignant biliary obstruction (Hilar/Distal) | – | 60 (18/42) | – | 60 (18/42) |
| Pancreatic cancer | – | 20 | – | 20 |
| Cholangiocarcinoma | – | 21 | – | 21 |
| Gallbladder cancer | – | 1 | – | 1 |
| periampullary carcinoma | – | 5 | – | 5 |
| Hepatocellular carcinoma | – | 5 | – | 5 |
| Metastatic biliary obstruction | – | 8 | – | 8 |
| Cholecystitis | – | – | 30 | 30 |
| Bismuth type (Ⅰ/Ⅱ/Ⅲa/Ⅲb/Ⅳ) | – | 2/5/4/1/6 | – | 2/5/4/1/6 |
| Prior papilla treatment | ||||
| Post EST | 26 | 3 | 9 | 30 |
| None | 54 | 57 | 21 | 140 |
| Level of initial GW manipulator * | ||||
| A | 20 (25%) | 19 (31.7%) | 10 (33.3%) | 49 (28.8%) |
| B | 25 (31.3%) | 18 (30%) | 12 (40%) | 55 (32.4%) |
| C | 35 (43.8%) | 23 (38.3%) | 8 (26.7%) | 66 (38.8%) |
* Level of initial GW manipulator; A was defined as less than five years of experience, B as five years or more but less than 10 years, and C as 10 years or more. GW: guidewire.