Table 2 Intraoperative outcomes and subgroup analysis between different tumor location (anterior or posterior)
Variables | Total | Anterior cases | Posterior cases | P value |
|---|---|---|---|---|
Technical success | 10 (100%) | 5 (100%) | 5 (100%) | 1.000 |
Operation time (min) | 103.3 ± 11.1 | 110.2 ± 10.9 | 96.4 ± 6.4 | 0.041 |
Warm ischemia time (min) | 21.0 ± 2.7 | 21.8 ± 2.6 | 20.2 ± 2.8 | 0.373 |
δSerum creatinine, 48 h after surgery (µmol/L) | 1.6 ± 12.0 | 0.0 ± 17.3 | 3.2 ± 4.3 | 0.698 |
δEstimated glomerular filtration rate, 48 h after surgery (ml/min/1.73m2) | -3.1 ± 8.1 | -4.0 ± 10.8 | -2.2 ± 5.3 | 0.764 |
Estimated blood loss (ml) | 42.0 ± 22.5 | 40.0 ± 30.8 | 44.0 ± 13.1 | 0.797 |
δHemoglobin (g/L) | -1.8 ± 6.9 | -4.4 ± 6.8 | 0.8 ± 6.8 | 0.259 |
Blood transfusion (%) | 0 | 0 | 0 | NA |
Incision length (cm) | 4.6 (4.5, 4.7) | 4.6 (4.5, 4.7) | 4.5 (4.5, 4.7) | 0.654 |
Additional access (%) | 0 | 0 | 0 | NA |
Conversion to renal artery clamping (%) | 0 | 0 | 0 | NA |
Conversion to radical nephrectomy (%) | 0 | 0 | 0 | NA |
Conversion to open surgery (%) | 0 | 0 | 0 | NA |
Conversion to standard robot laparoscopy (%) | 0 | 0 | 0 | NA |
Complications (%) | 0 | 0 | 0 | NA |