Table 3.
Complications reported in studies from medium-volume and high-volume centres
| Nature of complication | Clavien grade | Number of complications (n) | |
|---|---|---|---|
| Medium volume | High volume | ||
| Post-operative renal colic | I | – | 2 |
| Haematuria | I | 9 | 36 |
| UTI/pyelonephritis | I | 4 | 72 |
| Mild fever/pyrexia post-operatively | I | 12 | 34 |
| Urinary retention | I | 1 | 8 |
| Post-operative renal colic | I | – | 29 |
| Re-admission due to nausea and vomiting | I | – | 1 |
| Urethral stone | I | – | 1 |
| Late ureterovesical junction obstruction | III | – | 5 |
| Stent migration | III | 1 | 8 |
| Ureteral strictures | III | – | 1 |
| Post-operative ureteral stone | III | – | – |
| Broken catheter | III | – | 1 |
| Intra-operative bleeding/false passage/ureteral perforation/tear/laceration/submucosal wire | III | 10 | 63 |
| Stone migration | III | – | 8 |
| Total | – | 37 | 269 |