Table 4.
Perioperative outcomes and follow up
| Easy (grade I A, B and II A, B) N = 959 (71.8%) | Difficult (grade III, IV, V) N = 376 (28.2%) | p value | OR (95% CI) | |
|---|---|---|---|---|
| Biliary-related complications | ||||
| Bile leakage | 7 (0.7) | 15 (4) | < 0.001 | 0.177 (0.072, 0.438) |
| Pancreatitis | 9 (0.9) | 6 (1.6) | 0.305 | 0.584 (0.207, 1.653) |
| Hyperamylasemia | 16 (1.6) | 10 (2.6) | 0.238 | 0.621 (0.279, 1.381) |
| Retained stones | 14 (1.4) | 14 (3.7) | 0.009 | 0.383 (0.181, 0.811) |
| Biliary drain related* | 10 (1) | 14 (3.7) | < 0.001 | 0.272 (0.120, 0.619) |
| Readmissions* | 63 (6.5) | 60 (15.9) | < 0.001 | 0.370 (0.254, 0.539) |
| Reoperations** | 8 (0.8) | 5 (1.3) | 0.407 | 0.624 (0.203, 1.920) |
| Total hospital stay (days)*** | 7 (IQR 4–11) | 11 (IQR 7–16) | < 0.001 | – |
| Total hospital episode(s) | ||||
| 1 episode | 704 (73.4) | 221 (58.8) | < 0.001 | 1.936 (1.507, 2.487) |
| 2 episodes | 222 (23.1) | 127 (33.8) | < 0.001 | 0.591 (0.455, 0.767) |
| 3 episodes | 27 (2.8) | 20 (5.3) | 0.026 | 0.516 (0.286, 0.931) |
| ≥ 4 episodes | 6 (0.63) | 8 (2.1) | 0.015 | 0.290 (0.100, 0.840) |
| Presentation to resolution interval (weeks)* | 2 (IQR 1–3) | 3 (IQR 2 -5) | 0.070 | – |
Bold values indicate significant
*Dehydration due to fluid loss and pain after tube removal included under readmissions
**Plus one for Mirizzi type IV reconstruction. After uncomplicated grade V exploration
***For all hospital episodes including at other hospitals and referring units