Table 4.
Perioperative variables in different subgroups by R.E.N.A.L. score.
| R.E.N.A.L. score <8 | R.E.N.A.L. score ≥8 | |||||
|---|---|---|---|---|---|---|
| No 3D | 3D | P value | No 3D | 3D | P value | |
| No. of patients | 88 | 91 | 89 | 56 | ||
| Ischaemia timec (min) | 19.4, 19.0 (15.0; 22.5) | 19.6, 20.0 (15.0; 22.0) | 0.783 | 24.7, 23.5 (20.0; 29.5) | 26.4, 26.0 (20.0; 28.5) | 0.256 |
| EBLc (ml) | 79.6, 50.0 (50.0; 100.0) | 49.5, 50.0 (20.0; 50.0) | 0.002 | 147.9, 50 (50; 100) | 75.9, 50 (50; 100) | 0.046 |
| Operative timec (min) | 131.6, 122.5 (100.0; 155.0) | 118.5, 117.0 (95.0; 135.0) | 0.027 | 156.0, 145.0 (110.0; 182.5) | 145.7, 132.5 (120.0; 166.0) | 0.521 |
| Use of intraoperative USa | 8 (9.1) | 2 (2.2) | 0.093 | 21 (23.6) | 9 (16.1) | 0.191 |
| Intraoperative complicationsa | 1 (1.1) | 0 (0) | 0.492 | 7 (7.9) | 0 (0) | 0.030 |
| Transfusionsa | 1 (1.1) | 0 (0) | 0.492 | 7 (7.9) | 0 (0) | 0.030 |
| Conversion to radical nephrectomya | 1 (1.1) | 0 (0) | 0.492 | 1 (1.1) | 0 (0) | 0.618 |
| Postoperative complications, Claviena | 0.092 | <0.001 | ||||
| 1 | 8 (9.1) | 3 (3.3) | 19 (21.3) | 2 (3.6) | ||
| ≥2 | 4 (4.5) | 1 (1.1) | 12 (13.5) | 1 (1.8) | ||
| Preoperative stage of renal insufficiencya | 0.147 | 0.488 | ||||
| 1 | 76 (86.4)76 (86.4) | 86 (94.5) | 78 (87.6) | 49 (87.5) | ||
| 2 | 11 (12.5) | 4 (4.4) | 9 (10.1) | 7 (12.5) | ||
| 3 | 1 (1.1) | 1 (1.1) | 2 (2.2) | 0 (0.0) | ||
| Postoperative stage of renal insufficiencya | 0.085 | 0.728 | ||||
| 1 | 72 (81.8) | 83 (91.2) | 71 (79.8) | 45 (80.4) | ||
| 2 | 15 (17.0) | 6 (6.6) | 17 (19.1) | 11 (19.6) | ||
| 3 | 1 (1.1) | 2 (2.2) | 1 (1.1) | 0 (0.0) | ||
| ΔSCrc (μmol/L) | 0.2, 0.3 (−5.8; 5.8) | 1.4, 1.9 (−3.6; 5.9) | 0.321 | 6.0, 3.6 (−2.0; 3.5) | 5.2, 5.1 (−3.1; 11.3) | 0.845 |
| Length of stayc (day) | 10.1, 10 (8; 11) | 10.2, 10 (8; 11) | 0.944 | 11.7, 11 (9; 14) | 10.5, 10 (8; 12) | 0.027 |
EBL = estimated blood loss; SCr = serum creatine; US = ultrasonography; a = no. (%); c = mean, median (interquartile range).