Table 2.
Comparison of peri- and post-operative outcomes according to ureteral access sheath usage status.
| Characteristic | Before propensity score matching |
After propensity score matching |
||||
|---|---|---|---|---|---|---|
| UAS+ | UAS− | p-Value | UAS+ | UAS− | p-Value | |
| Operating timea, min | 74.8±30.2 | 76.9±44.0 | 0.48 | 85.2±36.4 | 76.9±44.2 | 0.041 |
| Fluoroscopy timea, s | 16.3±78.5 | 8.1±6.2 | 0.06 | 11.3±9.3 | 8.9±6.1 | 0.33 |
| Length of hospitalitya, day | 1.6±1.9 | 1.4±0.8 | 0.90 | 1.9±1.7 | 1.4±0.8 | 0.079 |
| Overall complicationsb, n (%) | 78 (16.2) | 26 (29.9) | 0.002 | 16 (18.4) | 26 (29.9) | 0.08 |
| Perioperative | 35 (7.3) | 15 (17.2) | 0.005 | 7 (8.0) | 15 (17.2) | 0.11 |
| Postoperative | 47 (9.8) | 24 (27.6) | 0.008 | 10 (11.5) | 24 (27.6) | 0.01 |
| Stone-free rate, n (%) | 412 (85.7) | 61 (70.1) | <0.001 | 75 (86.2) | 61 (70.1) | 0.01 |
| Auxiliary procedure, n (%) | 61 (12.7) | 30 (34.5) | <0.001 | 9 (10.3) | 30 (34.5) | <0.001 |
UAS+, patients had ureteral access sheath during procedure; UAS−, patients had no ureteral access sheath during procedure.
a
Values are presented as mean ± standard deviation.
b
All complication rates were calculated patient-wise. If a patient has perioperative and postoperative complications, only one of them was taken into account.