Table 3.
Intraoperative conditions and early postoperative complications in the two groups
| Group A | Group B | P value | |
|---|---|---|---|
| Operative time (min)d | 79.5 ± 16.2 | 81.0 ± 14.5 | 0.184 |
| Channel sizee | |||
| F18 | 82 | 79 | 0.724 |
| F20 | 64 | 67 | |
| Blood Leukocyte Counts (109/L)d | 9.1 ± 3.0 | 9.2 ± 2.9 | 0.949 |
| Haemoglobin decrease (g/dl)d | 10.0 ± 7.7 | 9.1 ± 6.7 | 0.390 |
| VAS pain score | |||
| Postoperative day 1d | 2.18 ± 0.71 | 4.09 ± 1.35 | < 0.001 |
| Discharge dayd | 1.29 ± 0.72 | 2.31 ± 1.05 | 0.021 |
| Clavien-Dindo classification | |||
| Grade I | |||
| Fevere | 21 (14.4%) | 23 (15.7%) | 0.871 |
| Analgesic requirement (%)e | 19 (13.0%) | 30 (20.5%) | 0.005 |
| Urinary extravasation (%)e | 3 (2.1%) | 9 (6.2%) | 0.146 |
| Grade II | |||
| Sepsis (%)e | 4 (2.7%) | 3(2.1%) | 1.000 |
| Bleeding (%)e | 12 (8.2%) | 10 (6.8%) | 0.617 |
| F18e | 7 | 5 | 0.594 |
| F20e | 5 | 5 | 1.000 |
| Transfusion rate (%)e | 3 (2.1%) | 2 (1.4%) | 1.000 |
| Grade III | |||
| Embolization (%)e | 6 (4.1%) | 2 (1.4%) | 0.289 |
| Residual stone (%)e | 15 (10.3%) | 12 (8.2%) | 0.690 |
| Catheterization time (d)d | 3.3 ± 1.2 | 4.2 ± 1.1 | < 0.001 |
| Hospital stay (d)d | 6.8 ± 1.6 | 7.7 ± 1.6 | < 0.001 |
cNormally distributed variable data analysed with paired-sample t test
dNonnormally distributed variable data analysed with the Wilcoxon-Mann–Whitney test
eCategorical variable data analysed with the McNemar test