Table 1 Patient characteristics
From: Repeated stereotactic body radiotherapy for oligometastatic prostate cancer recurrence
| Characteristics | All patients (n = 50) |
|---|---|
| Age at diagnosis (yrs) | |
| Median (IQR) | 59 (55–62) |
| Follow-up from PCa diagnosis (yrs) | |
| Median (IQR) | 7.8 (5.3-10.5) |
| Primary therapy | |
| Radical prostatectomy alone | 6 (12%) |
| Radical prostatectomy with postoperative RT | 22 (44%) |
| Radical prostatectomy with postoperative RT + ADT | 14 (28%) |
| Radiotherapy + ADT | 6 (12%) |
| Radiotherapy alone | 2 (4%) |
| PSA at initial diagnosis (ng/ml) | |
| Mean (range) | 16 (3.5-81) |
| Median (IQR) | 10.4 (7–16.9) |
| Prognostic grouping | |
| Low | 1 (2%) |
| Intermediate | 16 (32%) |
| High | 19 (38%) |
| Very high | 14 (28%) |
| Interval from diagnosis to metastases (yr) | |
| Mean (range) | 5.3 (0.2 – 15) |
| Median (IQR) | 4.8 (2.9 – 7.3) |
| PSA level at first documented metastases (ng/ml) | |
| Mean (range) | 10.9 (0.2 – 117) |
| Median (IQR) | 5.1 (2.0 – 8.6) |
| PSA DT at first documented metastases (mo) | |
| Mean (range) | 6.0 (1 – 30) |
| Median (IQR) | 3.8 (3.0 – 6.9) |
| Number of lesions at diagnosis of metastases | |
| 1 metastasis | 37 (74%) |
| 2 metastases | 8 (16%) |
| 3 metastases | 6 (12%) |
| Primary site of metastases | |
| Lymph nodes | |
| Pelvic | 24 (50%) |
| Obturator | 1 (2%) |
| Internal iliac | 6 (12%) |
| External iliac | 10 (20%) |
| Presacral | 2 (4%) |
| Common iliac | 3 (6%) |
| Combination of nodal sites | 2 (4%) |
| Extrapelvic | 1 (2%) |
| Both | 2 (4%) |
| Bones | |
| Axial | 8 (16%) |
| Appendicular | 11 (22%) |
| Both | 3 (6%) |
| Viscera | |
| Liver | 1 (2%) |
| Treatment at time of metastases (%) | |
| SBRT 10 × 5 Gy + 1 mo ADT | 35 (70%) |
| SBRT 3 × 10 Gy | 15 (30%) |