Variable | <30 | ≥30, <50 | ≥50, <80 | ≥80 | P Value |
---|---|---|---|---|---|
Patients (n) | 19 | 143 | 51 | 6 | |
Prostate weight (g) | 24.5 (18–29) | 38.5 (30–48) | 58.6 (50–78) | 97.7 (86–110) | <0.01 |
Mean age (y) | 65.9 (50–76) | 66.5 (49–75) | 67.6 (41–75) | 67.7 (60–72) | 0.63 |
Mean PSA (ng/mL) | 9.7 | 7.5 | 9.0 | 9.9 | 0.30 |
BMI | 23.7 | 23.3 | 23.4 | 25.3 | 0.08 |
Preoperative Gleason score | |||||
5–6 | 3 (15.8%) | 39 (27.3%) | 24 (47.1%) | 4 (66.7%) | <0.01 |
7 | 14 (73.7%) | 59 (41.3%) | 11 (21.6%) | 2 (33.3%) | |
8–9 | 2 (10.5%) | 45 (31.5%) | 16 (31.4%) | 0 | |
Clinical stage | |||||
T1c | 4 (21.1%) | 40 (28.0%) | 15 (29.4%) | 5 (83.3%) | 0.34 |
T2a | 4 (21.1%) | 38 (26.6%) | 16 (31.4%) | 1 (16.7%) | |
T2b | 4 (21.1%) | 12 (8.4%) | 4 (7.8%) | 0 | |
T2c | 7 (36.8%) | 44 (30.8%) | 14 (27.5%) | 0 | |
T3a | 0 | 8 (5.6%) | 1 (2.0%) | 0 | |
T3b | 0 | 1 (0.7%) | 1 (2.0%) | 0 | |
Nerve sparing | |||||
None | 14 (73.7%) | 113 (79.0%) | 43 (84.3%) | 6 (100.0%) | 0.62 |
Unilateral | 3 (15.8%) | 24 (16.8%) | 5 (9.8%) | 0 | |
Bilateral | 2 (10.5%) | 6 (4.2%) | 3 (5.9%) | 0 | |
Estimated blood loss (mL) | 241.8 | 304.2 | 259.8 | 586.0 | 0.05 |
Transfusion | 1 (5.3%) | 6 (4.2%) | 2 (3.9%) | 0 | 1.21 |
Mean total operative time (min) | 223.7 | 219.6 | 219.3 | 270.7 | <0.01 |
Mean robotic time (min) | 165.4 | 163.8 | 162.4 | 216.5 | <0.01 |
Mean anastomosis time (min) | 26.5 | 25.7 | 23.0 | 32.5 | 0.13 |
Mean Foley catheterization (days) | 7.58 | 7.76 | 8.36 | 8.83 | 0.54 |
Pathological stage | |||||
pT2a | 1 (5.3%) | 18 (12.6%) | 14 (27.5%) | 4 (66.7%) | <0.01 |
pT2b | 3 (15.8%) | 2 (1.4%) | 1 (2.0%) | 0 | |
pT2c | 13 (68.4%) | 96 (67.1%) | 29 (56.9%) | 2 (33.3%) | |
pT3a | 1 (5.3%) | 11 (7.7%) | 5 (9.8%) | 0 | |
pT3b | 1 (5.3%) | 16 (11.2%) | 2 (3.9%) | 0 | |
Positive margins | 7/19 | 54/143 | 13/51 | 1/6 | 0.33 |
(36.8%) | (37.8%) | (25.5%) | (16.7%) | ||
pT2 | 5/17 | 39/116 | 9/44 | 1/6 | 0.37 |
(29.4%) | (33.6%) | (20.5%) | (16.7%) | ||
pT3 | 2/2 | 15/27 | 4/7 | 0/0 | 0.47 |
(100.0%) | (55.6%) | (57.1%) | (0.0%) | ||
Mean follow-up (mo) | 12.0 | 11.8 | 10.6 | 9.7 | 0.43 |