Baseline characteristics of the treated patients
| Variable | Value |
|---|---|
| Age (yr) | |
| Mean | 33.5 |
| Median | 42 |
| Range | 33–61 |
| Sex (No.) (%) | |
| Male | 25% (4) |
| Female | 75% (12) |
| Presentation (No.) (%) | |
| Hemorrhage | 75% (12) |
| Neurologic deficit | – |
| Headache | 12.5% (2) |
| Epilepsy | 12.5% (2) |
| Asymptomatic | – |
| Size (%) (No.) | |
| ≤30 mm | 75% (12) |
| ≥30 mm | 25% (4) |
| No. of arterial feeders (%) | |
| Single | 43.7% (7) |
| Multiple | 56.3% (9) |
| Venous pattern (No.) (%) | |
| Superficial | 68.7% (11) |
| Deep | 18.7% (3) |
| Deep and superficial | 12.5% (2) |
| Spetzler-Martin score | |
| I | 31.2% (5) |
| II | 37.5% (6) |
| III | 25% (4) |
| IV | 6.3% (1) |
| mRS prior to embolization | |
| 1 | 68.7% (11) |
| 2 | 25% (4) |
| 3 | 6.3% (1) |
Note:—– indicates absence of particular determinant; mRS, modified ranking score.