TABLE 1.
Baseline Characteristics of Study Cohort
| Characteristics | Cases (n = 6) | Controls (n = 3) | P Value |
|---|---|---|---|
| Age | 43 ± 18 | 31 ± 8 | 0.200 |
| Sex | 0.524 | ||
| Male | 2 (33%) | 2 (67%) | |
| Female | 4 (67%) | 1 (33%) | |
| Presentation | |||
| Hemorrhage | 2 (33%) | NA | |
| Headache | 3 (50%) | NA | |
| Incidental | 1 (17%) | NA | |
| Size (cm) | 1.8 ± 0.8 | NA | |
| Venous Drainage | |||
| 1 | 4 (66%) | NA | |
| 2 | 1 (17%) | NA | |
| 3 | 1 (17%) | NA | |
| Location | |||
| Cortical | 0 (0%) | NA | |
| Frontal | 4 (66%) | NA | |
| Occipital | 1 (17%) | NA | |
| Parietal | 1 (17%) | NA | |
| Spetzler-Martin Score* | |||
| 1 | 2 (33%) | NA | |
| 2 | 3 (50%) | NA | |
| 3 | 1 (17%) | NA | |
| 4 | 0 (0%) | NA | |
| 5 | 0 (0%) | NA | |
±
age represents SD
±
size represents SD (cm)
*
The Spetzler-Martin Score is an estimation of the risk of neurosurgery to an AVM patient based on the AVM size, venous drainage, and brain location. Higher values represent a more at-risk patient and less operable AVM. [11]