Table 2.
Operative and postoperative data
| Operative and postoperative data | |
|---|---|
| Surgical procedure | |
| Anderson-hynes dismembered pyeloplasty + pyelolithotomy, n | 11 |
| Pyelolithotomy, n | 2 |
| Intra-operative nephroscopy, n | 13 |
| Cystolithotomy, n | 2 |
| Postoperative drainage | |
| Indwelling JJ stent, n (%) | 13 (86.7%) |
| Abdominal drain, n (%) | 6 (40%) |
| Indwelling bladder catheter, n (%) | 15 (100%) |
| Median duration of JJ stent, days (range) | 21 (18–31) |
| Median duration of bladder catheter after pyelolitothomy, days (range) | 2 (1–4) |
| Median duration of bladder catheter after bladder lithotomy, days (range) | 15.5 (10–21) |
| Median operative time, minutes (range) | 131.8 (60–240) |
| Intra-operative complications, n (%) | 0 |
| Conversion, n (%) | 0 |
| Median analgesic requirement, hours (range) | 24.5 (8–48) |
| Median hospital stay, days (range) | 2.8 (1–4) |
| Stone Composition | |
| Calcium oxalate, n (%) | 7 (46.7%) |
| Calcium phosphate, n (%) | 5 (33.3%) |
| Struvite, n (%) | 3 (20%) |
| Median follow-up length, months (range) | 23.2 (3–54) |
| Stone-free rate | |
| Following initial surgery, n (%) | 12 (80%) |
| Following secondary procedure, n (%) | 15 (100%) |
| Residual stone management | |
| Ureteroscopy, n (%) | 3 (20%) |
| Overall success rate of pyeloplasty, n (%) | 11 (100%) |
| Degree of hydronephrosis at US | |
| Median pre-operative APD, mm (range) | 28.4 (18–40) |
| Median postoperative APD, mm (range) | 4.1 (0–8) |
| Renal drainage on Mag 3 renogram | |
| Before surgery, minutes (range) | 44 (27–78) |
| After surgery, minutes (range) | 7.7 (8–15) |
| Postoperative complications | |
| Hematuria, n (%) | 3 (20%)—II grade Clavien |
| Urinary tract infections (UTIs), n (%) | 2 (13.3%)—II grade Clavien |
| Residual stones, n (%) | 3 (20%)—IIIb grade Clavien |
| Stricture of ureteropelvic anastomosis, n (%) | 0 |
| Other, n (%) | 0 |
APD anterior–posterior pelvic diameter, US ultrasound