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Table 1 Perioperative features of RALP patients based on pathologic prostate weight

From: Impact of prostate weight on perioperative outcomes of robot-assisted laparoscopic prostatectomy with a posterior approach to the seminal vesicle

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