Table 2.
Comparisons of intraoperative and postoperative data and complications between the single-port group and the multiport group
| Variable | SP group (n=30) | MP group (n=26) | P |
|---|---|---|---|
| Operative time (min), median (IQR) | 142.5 (129.5–180.0) | 134 (129.5–146) | 0.097 |
| EBL (ml), median (IQR) | 123.0 (115.0–160.0) | 120.0 (110.0–130.0) | 0.166 |
| Bladder catheterization (day), median (IQR) | 14 | 14 | |
| PSM, n (%) | 0 (0) | 0 (0) | |
| Hospital stay (day), median (IQR) | 4.5 (4.0–5.0) | 7.0 (6.0–8.0) | <0.001 |
| Transfusion rate, n (%) | 0 (0) | 0 (0) | |
| Peritoneum broken, n (%) | 0 (0) | 5 (19.2) | 0.017 |
| Lymphadenectomy, n (%) | 8 (26.7) | 6 (23.1) | 0.757 |
| Lymph node invasion, n (%) | 0 (0) | 0 (0) | |
| Nerve-sparing procedure, n (%) | 0.943 | ||
| Unilateral | 8 (26.7) | 6 (23.1) | |
| Bilateral | 18 (60.0) | 16 (61.5) | |
| None | 4 (13.3) | 4 (15.4) | |
| Complications, n (%) | 0.559 | ||
| Clavien I–II | 9 (30.0) | 6 (23.1) | |
| Clavien III–V | 0 (0) | 0 (0) | |
| ISUP grade after RP, n (%) | 0.827 | ||
| Grade group 1 | 12 (40.0) | 10 (38.5) | |
| Grade group 2 | 4 (13.3) | 3 (11.5) | |
| Grade group 3 | 9 (30.0) | 7 (26.9) | |
| Grade group 4 | 5 (16.7) | 6 (23.1) | |
| pT stage after RP, n (%) | 0.828 | ||
| T2a | 8 (26.7) | 9 (34.6) | |
| T2b | 12 (40.0) | 11 (42.3) | |
| T2c | 6 (20.0) | 3 (11.5) | |
| T3a | 4 (13.3) | 3 (11.5) | |
| Positive surgical margins, n (%) | 3 (10.0) | 2 (7.7) | 0.867 |
| Pain score, median (IQR) | |||
| Day of the operation | 6.0 (5.0–7.0) | 7.0 (6.8–8.0) | <0.001 |
| First postoperative day | 5.0 (4.8–6.0) | 7.0 (6.0–7.0) | <0.001 |
| Second postoperative day | 4.0 (3.0–4.3) | 4.0 (4.0–4.0) | 0.224 |
| Discharge day | 1.0 (1.0–2.0) | 1.0 (1.0–2.0) | 0.874 |
| Need for any pain medication, n (%) | 11 (36.7) | 18 (69.2) | 0.015 |
| Need for opioids, n (%) | 2 (6.7) | 7 (26.9) | 0.04 |
| 3 months PSA <0.1 ng ml−1, n (%) | 29 (96.7) | 25 (96.2) | 0.536 |
| 3 months continence (0–1 pad per day), n (%) | 22 (73.3) | 20 (76.9) | 0.757 |
| 3 months erectile function recovery, n (%) | 10 (33.3) | 8 (30.8) | 0.838 |
| 3 months scar satisfaction, n (%) | 26 (86.7) | 14 (53.8) | 0.007 |
IQR: interquartile range; EBL: estimated blood loss; PSM: positive surgical margin; RP: radical prostatectomy; PSA: prostate-specific antigen; SP: single-port; MP: multiport; ISUP: International Society of Urological Pathology