| N | 5 |
| Gender, male/female | 1/4 |
| Age, years | 81 (72 - 90) |
| BMI, kg/m2 | 20.8 (17.6 - 22.4) |
| CBD diameter (mm) | 18.4 (14.7 - 27.2) |
| EST difficult or failed cases |
|
| Peripapillary diverticulum | 2 |
| Giant stone | 2 |
| Multiple stones | 1 |
| Mean follow up periods (month) | 18 (4 - 26) |
| ASA |
|
| 1 | 1 |
| 2 | 4 |
| 3 | 0 |
| 4 | 0 |