Table 3 Surgical and pathological outcomes
High volume hospital (n = 1842) | Non-high-volume hospital (n = 911) | P value | |
|---|---|---|---|
Console time, min (median ± SD) | 146 ± 57 | 203 ± 74 | < 0.001 |
Estimated blood loss, mL (median ± SD) | 30 ± 182 | 169 ± 271 | < 0.001 |
Nerve spare (number, %) | < 0.001 | ||
Unilateral | 396 (21.5%) | 240 (26.3%) | |
Bilateral | 53 (2.9%) | 138 (15.1%) | |
Not performed | 1391 (75.5%) | 533 (58.5%) | |
Lymph node dissection | < 0.001 | ||
Limited dissection | 1085 (58.9%) | 464 (50.9%) | |
Extended dissection | 169 (9.2%) | 153 (16.8%) | |
Not performed | 584 (31.7%) | 288 (31.6%) | |
Number of lymph nodes (extended dissection) | 14 ± 7.8 | 18 ± 8.2 | < 0.001 |
Pathological T stage (number, %) | 0.11 | ||
T2 | 1273 (69.1%) | 656 (72.0%) | |
T3 or more | 566 (30.7%) | 253 (27.8%) | |
Pathological nodal status (number, %) | 0.28 | ||
N0 | 1187 (94.6%) | 591 (95.6%) | |
N1 | 67 (5.3%) | 26 (4.2%) | |
Surgical margins status (number, %) | 0.29 | ||
Negative | 1259 (68.3%) | 615 (67.5%) | |
Positive | 560 (30.4%) | 249 (27.3%) | |
Surgical Gleason score (number, %) | 0.16 | ||
6 | 131 (7.1%) | 74 (8.1%) | |
7 | 1339 (72.7%) | 627 (68.8%) | |
8–10 | 368 (20.0%) | 203 (22.3%) | |
Complication (number, %) | 0.9 | ||
Grade 3 | 46 (2.5%) | 21 (2.3%) | |
Grade 4 | 3 (0.2%) | 2 (0.2%) | |
PSA persistence | 77 (4.2%) | 59 (6.5%) | 0.003 |
Continence rate at 3 months after RARP | 686 (37.4%) | 189 (37.0%) | 0.93 |