Table 1.
Patient characteristics (mean or median with ranges are shown)
| Characteristic | |
|---|---|
| Age, y | 59 (37-84) |
| Gender | |
| Male | 41% |
| Female | 59% |
| Histology | |
| NSCLC | 51% |
| Melanoma | 9% |
| Breast | 10% |
| Ovarian | 8% |
| Other | 22% |
| Number of brain metastases | |
| 1 | 58% |
| ≥2 | 42% |
| Extracranial metastatic disease | 29% |
| Extracranial definitive treatment | 67% |
| Chemotherapy | 72% |
| Synchronous presentation with brain metastases | 44% |
| Gross total resection | 62% |
| Preoperative size | 3.3 cm (1-6.2 cm) |
| Cavity volume | 13.4 mL (3-40.8 mL) |
| SRS dose | 18 Gy (14-22 Gy) |
| Interval between diagnosis and SRS | 0.7 years |
| Interval between surgery and SRS | 30 days (5-56 days) |
NSCLC, non-small cell lung cancer; SRS, stereotactic radiosurgery.