Table 3.
Perioperative complications according to modified Clavien classification system
| After propensity score-matching | |||
|---|---|---|---|
| Variables | Non-stented group (n = 339) |
Preoperatively stented group (n = 113) |
p-value |
| Intraoperative complication | |||
| Grade I | |||
| Intrarenal bleeding | 9 (2.7%) | 1 (0.9%) | 0.410 |
| Grade II | |||
| Arrhythmia | 0 (0.0%) | 1 (0.9%) | 0.845 |
| Grade III | |||
| Ureter perforation | 0 (0.0%) | 1 (0.9%) | 0.872 |
| Postoperative complication | |||
| Grade I | |||
| Fever | 9 (2.7%) | 2 (1.8%) | 0.664 |
| Grade II | |||
| Blood transfusion | 0 (0.0%) | 0 (0.0%) | NA |
| Urinary tract infection | 9 (2.7%) | 5 (4.4%) | 0.519 |
| Acute pyelonephritis | 6 (1.8%) | 0 (0.0%) | 0.478 |
| Grade III | |||
| Ureteral stricture | 1 (0.3%) | 1 (0.9%) | 0.965 |
| Grade IV | |||
| Sepsis | 0 (0.0%) | 0 (0.0%) | NA |