Table 2 Stratified peri-operative data
n | Operation time(min) | Immediate SFR | SFR 30 days postoperative | multiple sessions | No. of basket(%) | |
|---|---|---|---|---|---|---|
Stone size | ||||||
<2 cm | 125 | 40.1 ± 22.4 | 84.8% | 100.0% | 0 | 31(24.8)* |
2-3 cm | 61 | 73.7 ± 28.9* | 77.0% | 100.0% | 0 | 28(45.9) |
>3 cm | 38 | 157.5 ± 108.1* | 50.0%* | 84.2%* | 10* | 14(36.8) |
Lower calyx involved | ||||||
No | 90 | 48.0 ± 42.7 | 88.9% | 97.8% | 2 | 6(6.7) |
Yes | 134 | 83.3 ± 73.5* | 68.6%* | 97.0% | 8 | 67(50.0) * |
Hounsfield Unit Value | ||||||
≤1200Hu | 146 | 58.9 ± 49.8 | 80.8% | 98.6% | 3 | 48(32.9) |
>1200Hu | 78 | 88.3 ± 84.0* | 69.2% | 96.1% | 7* | 25(32.0) |