TABLE 2.
Pain-flare correlation chi-square analysis
| No. of Lesions |
|||
|---|---|---|---|
| No Pain Flare (n = 32) | Pain Flare (n = 8) | p Value | |
| Fractions | 0.245 | ||
| 1 | 26 | 5 | |
| 3 | 6 | 3 | |
| Previous surgery | 0.118 | ||
| Yes | 18 | 2 | |
| No | 14 | 6 | |
| SBRT dose | 0.487 | ||
| High (BED10Gy >30 Gy) | 7 | 1 | |
| Low (BED10Gy ≤30 Gy) | 25 | 7 | |
| Histology* | 0.383 | ||
| Meningioma | 11 | 2 | |
| Schwannoma | 14 | 3 | |
| Hemangioblastoma | 5 | 2 | |
| Age | 0.118 | ||
| ≤57 yrs | 14 | 6 | |
| >57 yrs | 18 | 2 | |
| Spinal segment | 0.487 | ||
| Cervical | 11 | 3 | |
| Thoracic | 11 | 4 | |
| Lumbosacral | 10 | 1 | |
| Radiosurgery platform | 0.230 | ||
| CyberKnife | 8 | 1 | |
| TrueBeam | 12 | 2 | |
| Synergy S | 12 | 5 | |
Complete background (pretreatment) data were available for only 40 of the 47 treated lesions.
*
Meningioma, schwannoma, and hemangioblastoma represented the 3 most common tumor histology types but were not the only types found.