Table 1.
Comparison of Characteristics of Patients Undergoing Radical Cystectomy by Open or Robotic Methods
| Characteristics | Total (N = 37) | Open Method (N = 24) | Robotic Method (N = 13) | P |
|---|---|---|---|---|
| Age (years) | ||||
| median (range) | 70 (27–88) | 70.5 (27–86) | 70 (38–88) | 0.96 |
| Sex (M:F) | 28:9 | 18:6 | 10:3 | 1.00 |
| Body mass index | ||||
| median (range) | 26.4 (16.1–53.6) | 26.5 (16.1–53.6) | 25.05 (18.2–43.5) | 0.67 |
| Operative Time (minutes) | ||||
| median (range) | 460.5 (240–828) | 395 (300–664) | 697 (240–828) | 0.0002 |
| Estimated blood loss (mL) | ||||
| median (range) | 750 (100–10200) | 1250 (300–10200) | 500 (100–1000) | 0.0002 |
| Postoperative drop in Hgb (g/dL) | ||||
| median (range) | 3.1 (0.4–8.1) | 3.15 (0.5–6.8) | 2.4 (0.4–8.1) | 0.41 |
| Blood transfusion rate (N) | 25 (67.6%) | 18 (75%) | 7 (53.8%) | 0.27 |
| Positive surgical margins (N) | 3 (8.1%) | 3 (12.5%) | 0 (0%) | 0.54 |
| Stage (TNM staging, 1997 AJCC) (%) | ||||
| Organ-confined (≤T2) | 16 (43.2%) | 9 (37.5%) | 7 (53.8%) | 0.49 |
| Nonorgan-confined (≥T3) | 21 (56.8%) | 15 (62.5%) | 6 (46.2%) | |
| Node positive disease at time of surgery (%) | 6 (16.2) | 4 (16.8) | 2 (15.4) | 1.00 |
| Final pathological diagnosis (%) | ||||
| Transitional cell carcinoma | 33 (89.2) | 20 (83.2) | 13 (100) | 0.80 |
| Rectal adenocarcinoma | 2 (5.4) | 2 (8.4) | ||
| Prostate adenocarcinoma | 1 (2.7) | 1 (4.2) | ||
| Leiomyosarcoma | 1 (2.7) | 1 (4.2) | ||
| Hospital stay (days) | ||||
| median (range) | 10 (4–35) | 10 (6–35) | 8 (4–23) | 0.044 |
| Perioperative complication rate (N) | 6 (16.2) | 4 (16.7) | 2 (15.4) | 1.00 |