Table 2. Postoperative pathological outcomes of patients with high-risk PCa who achieved undetectable PSA following robot-assisted radical prostatectomy.
| Characteristics | Overall | Time to BCR | P value | ||
|---|---|---|---|---|---|
| < 60 mon | ≥ 60 mon | ||||
| No. of patients | 251 | 148 (59.0) | 103 (41.0) | NS | |
| Pathologic tumor stage, No. (%) | 0.469 | ||||
| pT2 | 48 (19.1) | 30 (20.2) | 18 (17.4) | ||
| pT3 | 183 (72.9) | 109 (73.6) | 74 (71.8) | ||
| pT4 | 20 (8.0) | 9 (6.2) | 11 (10.8) | ||
| Pathologic Gleason score, No. (%) | 0.639 | ||||
| ≤ 6 | 44 (17.5) | 22 (14.9) | 22 (21.4) | ||
| 7 | 127 (50.6) | 80 (54.1) | 47 (45.6) | ||
| ≥ 8 | 80 (31.9) | 46 (31.0) | 34 (33.0) | ||
| 7 (3 + 4) | 86 (34.3) | 54 (36.5) | 32 (31.1) | 0.875 | |
| 7 (4 + 3) | 41 (16.3) | 26 (17.6) | 15 (14.6) | ||
| Pathologic nodal status, No. (%) | 0.044 | ||||
| N0 | 233 (92.8) | 134 (90.5) | 99 (96.1) | ||
| N1 | 18 (7.2) | 14 (9.5) | 4 (3.9) | ||
| Positive surgical margin, No. (%) | 80 (31.9) | 50 (33.7) | 30 (29.1) | 0.132 | |
| Tumor volume | 1.5 (0.87–2.78) | 1.7 (0.95–3.1) | 1.2 (0.7–2.4) | 0.367 | |
| Seminal vesicle invasion, No. (%) | 30 (12.0) | 20 (13.5) | 10 (9.7) | 0.090 | |
| Lymphovascular invasion, No. (%) | 17 (6.9) | 8 (5.4) | 9 (8.7) | 0.149 | |
| High grade PIN, No. (%) | 159 (63.3) | 90 (60.8) | 69 (67.0) | 0.059 | |
| Total follow-up, mon | 75.9 (59.4–85.8) | 76.4 (63.6–82.5) | 74.1 (53.1–81.1) | 0.891 | |
PCa = prostate cancer, PSA = prostate-specific antigen, BCR = biochemical recurrence, PIN = prostatic intraepithelial neoplasia.