Table 1.
Demographic and clinical characteristics of study population
| Patient’s characteristics | PCNL (value), n (%) | RIRS (value), n (%) |
|---|---|---|
| Total number of patients | 100 | 50 |
| Gender | ||
| Male | 71 (71.0) | 28 (56.0) |
| Female | 29 (29.0) | 22 (44.0) |
| Age (years), mean±SD | 41.56±15.69 | 35.88±9.50 |
| Co-morbidity | ||
| Hypertension | 10 (10) | 5 (10) |
| Diabetes | 11 (11) | 7 (14) |
| Hypertension + diabetes | 4 (4) | 2 (4) |
| Others | 4 (4) | 1 (2) |
| No co-morbidity | 71 (71) | 35 (70) |
| BMI (kg/m2), mean±SD | 23.22±4.88 | 22.89±5.41 |
| Preoperative urine culture | ||
| Positive | 19 (19) | 18 (36) |
| Sterile | 81 (81) | 32 (64) |
| Stone bulk (cm), mean±SD | 3.53±2.04 | 1.18±0.39 |
| Dilated pelvi calyceal system | ||
| Yes | 65 (65) | 20 (40) |
| No | 35 (35) | 30 (60) |
| Operative time (min), mean±SD | 124.30±36.88 | 62.86±14.98 |
| Number of tracts | ||
| Single | 77 (77) | NA |
| Multiple | 23 (23) | NA |
| Nephrostomy tube placement | ||
| Yes | 89 (89) | NA |
| No | 11 (11) | NA |
| Preoperative DJ stent | ||
| Yes | NA | 20 (40) |
| No | NA | 30 (60) |
| UAS (Fr) | ||
| 9.5–11.5 (yes) | NA | 36 (72) |
| 10–12 (yes) | NA | 14 (28) |
| Intraoperative bladder urine culture | ||
| Positive | 12 (12) | 14 (28) |
| Sterile | 88 (88) | 36 (72) |
| Intraoperative RPUC | ||
| Positive | 18 (18) | 17 (34) |
| Sterile | 82 (82) | 33 (66) |
| SC | ||
| Positive | 26 (26) | 19 (38) |
| Sterile | 74 (74) | 31 (62) |
| Postoperative urine culture | ||
| Positive | 12 (12) | 17 (34) |
| Sterile | 88 (88) | 33 (66) |
| Postoperative SIRS | ||
| Yes | 23 (23) | 10 (20) |
| No | 77 (77) | 40 (80) |
| Postoperative sepsis | ||
| Yes | 12 (12) | 3 (6) |
| No | 88 (88) | 47 (94) |
| Postoperative residual calculus | ||
| Yes | 28 (28) | 11 (22) |
| No | 72 (72) | 39 (78) |
| Need for redo PCNL/redo RIRS/ESWL | 25 (25) | 11 (22) |
| Stone-free status at 1-month post-PCNL/RIRS | 84 (84) | 39 (78) |
PCNL: Percutaneous nephrolithotomy, RIRS: Retrograde intrarenal surgery, SD: Standard deviation, BMI: Body mass index, SIRS: Systemic inflammatory response syndrome, DJ: Double J, ESWL: Extracorporeal shock wave lithotripsy, UAS: Ureteral access sheath, RPUC: Renal pelvic urine culture, SC: Stone culture, NA: Not available