Table 6 Comparison between operative time and stone size, site, HFU
Patient number (60) | Mean operative time in min ± SD (range) | p value | |
|---|---|---|---|
Site of stone | Ureteric; n = 34 (72%) | 53.41 ± 12.08 (30–85) | < 0.001 |
Pelvic n = 10 (17%) | 66.8 ± 14.9 (40–90) | ||
Calyceal n = 2 (3%) | 55 ± 14.1 (45–65) | ||
Pelvicalyceal n = 5 (8%) | 87 ± 17.9 (65–100) | ||
HFU | < 400; n = 5(8.33%) | 57.00 ± 10.36 (45–70) | < 0.05 |
400–800; n = 23 (38.33%) | 56.39 ± 16.30 (40–100) | ||
> 800; n = 32 (53.33%) | 60.25 ± 17.05 (30–100) | ||
Stone size | < 1 cm n = 9 (15%) | 41.67 ± 9.68 (30–60) | < 0.01 |
1–2 cm n = 44(73.3%) | 59.77 ± 12.28 (40–90) | ||
> 2 cm n = 7(11.6%) | 72.14 ± 26.90 (45–100) | ||