Table 2.
Perioperative parameters of patients with MIBC treated with cystectomy and urinary diversion
| Characteristics | Total (N = 1340) | No preoperative chemotherapy (N = 821) | Preoperative chemotherapy (N = 519) | P value |
|---|---|---|---|---|
| Operation time (minutes, mean [SD])a | 332 (114) | 313 (108) | 360 (117) | < 0.001 |
| Estimated blood loss (median [IQR])b | 650 (300, 1300) | 700 (300, 1400) | 600 (250, 1100) | < 0.001 |
| Transfusion (N [%])c | ||||
| No | 972 (72.5) | 625 (76.1) | 347 (66.9) | < 0.001 |
| Yes | 368 (27.5) | 196 (23.9) | 172 (33.1) | |
| Median (units) (IQR)b | 2 (2, 4) | 2.5 (2, 5) | 2 (2, 4) | 0.49 |
| Mode of operation (N [%])c | ||||
| Open | 1024 (76.4) | 653 (79.5) | 371 (71.5) | < 0.001 |
| Robotic | 315 (23.5) | 167 (20.3) | 148 (28.5) | |
| Missing | 1 (0.1) | 1 (0.1) | 0 (0.0) | |
| Diversion (N [%])c | ||||
| Ileal conduit | 1179 (88.0) | 749 (91.2) | 430 (82.9) | < 0.001 |
| Neobladder | 124 (9.3) | 42 (5.1) | 82 (15.8) | |
| Continent cutaneous | 10 (0.8) | 3 (0.4) | 7 (1.4) | |
| Other | 26 (1.9) | 26 (3.2) | 0 (0.0) | |
| Missing | 1 (0.1) | 1 (0.1) | 0 (0.0) | |
| Pelvic lymph node dissection (N [%])c | ||||
| Aortic bifurcation | 264 (19.7) | 117 (14.2) | 147 (28.3) | < 0.001 |
| Iliac bifurcation | 782 (58.4) | 479 (58.3) | 303 (58.4) | |
| Obturator fossae | 107 (8.0) | 73 (8.9) | 34 (6.6) | |
| Enlarged only | 36 (2.7) | 27 (3.3) | 9 (1.7) | |
| None | 149 (11.1) | 124 (15.1) | 25 (4.8) | |
| Missing | 2 (0.1) | 1 (0.1) | 1 (0.2) | |
| Length of stay (median [IQR])b | 13 (10, 17) | 13 (10, 18.5) | 13 (10, 16) | 0.003 |
aT test
bWilcoxon rank-sum test
cChi square test or Fisher’s exact test