Table 3.
Univariate analyses of contributing factors to failed endoscopic stone extraction.
| SE | P value | ||
|---|---|---|---|
| Failed 205 (%) |
Difficult successful 221 (%) | ||
| Age | 0.028 | ||
| <85 | 167 (51.2) | 159 (48.8) | |
| ≥85 | 38 (38.0) | 62 (62.0) | |
| Periampullary diverticula | 0.016 | ||
| No | 121 (43.7) | 156 (56.3) | |
| Yes | 84 (56.4) | 65 (43.6) | |
| Multiple stones | 0.046 | ||
| No | 69 (56.1) | 54 (43.9) | |
| Yes | 136 (44.9) | 167 (55.1) | |
| Diameter of CBD stones | 0.012 | ||
| <15 mm | 113 (54.6) | 94 (45.4) | |
| ≥15 mm | 92 (42.0) | 127 (58.0) | |
| Presence of T-tube in situ + proximal lithiasis | NS | ||
| No | 180 (47.1) | 202 (52.9) | |
| Yes | 25 (56.8) | 19 (43.2) | |
| Iatrogenic injury to the extrahepatic biliary tree + lithiasis | NS | ||
| No | 194 (47.7) | 213 (52.3) | |
| Yes | 11 (57.9) | 8 (42.1) | |
| Intrahepatic stones | NS | ||
| No | 197 (48.6) | 208 (51.4) | |
| Yes | 8 (38.1%) | 13 (61.9) | |
| Previous gastrojejunostomy | NS | ||
| No | 199 (48.7) | 210 (51.3) | |
| Yes | 6 (35.3) | 11 (64.7) | |
| Acute distal CBD (common bile duct) angulation | NS | ||
| No | 198 (48.2) | 213 (51.8) | |
| Yes | 7 (46.7) | 8 (53.3) | |
| Impacted stone | NS | ||
| No | 160 (49.2) | 165 (50.8) | |
| Yes | 45 (44.6) | 56 (55.4) | |