Table 4.
Clinical features between the patients with and without residual bile duct stones n (%)
| With residual stones (n = 5) | Without residual stones (n = 17) | |
| Age (yr) | 69 ± 18.6 | 74.7 ± 9.5 |
| Sex (male) | 4 (80) | 11 (64.7) |
| Recurrent CBD stones | 4 (80) | 7 (41.2) |
| Prior choledocholithotomy | 3 (60) | 6 (35.3) |
| Mean maximum CBD diameter (mm) | 19 ± 7.6 | 17.6 ± 4.5 |
| Stones number (single) | 2 (40) | 8 (47) |
| Mean maximum stone diameter (mm) | 14.1 ± 7.2 | 13.2 ± 5.2 |
| Lithotripsy | 0 (0) | 2 (11.8) |
| Intact stone extraction | 1 (20) | 10 (58.9) |
| Diameter of EPBD1 (mm) | 13.5 ± 1.7 (n = 4) | 13.5 ± 1.4 |
1
Mean maximum inflated diameter of the balloon during endoscopic papillary balloon dilatation (EPBD). CBD: Common bile duct.