Arteriovenous malformations and patient characteristics
| n-BCA | PVA | |
|---|---|---|
| Number of patients | 52 | 50 |
| Spetzler grade, mean (number in each grade 1–5) | 2.9(5,13,20,11,3) | 2.9(5,14,17,10,3) |
| Volume(cm3) | 22.2 | 21.7 |
| >6 cm | 4 | 4 |
| Deep venous drainage | 26 | 23 |
| Age (mean years) | 40.5 | 37.6 |
| Sex | 33 male: 19 female | 27 male: 23 female |
| History | ||
| Intracerebral hemorrhage | 14 | 12 |
| Subarachnoid hemorrhage | 7 | 3 |
| Seizures | 24 | 21 |
| Altered mental status | 6 | 6 |
| Pounding/pulsatile headache | 14 | 15 |
| Physical examination deficits | ||
| Vision | 7 | 7 |
| Motor/Coordination | 10 | 11 |
| Sensory | 6 | 6 |
| Speech | 4 | 6 |
| Mentation | 6 | 3 |
| % Pretreatment Glasgow Outcome Scale score = 5 | 93.5% | 87.5% |
Note.—n-BCA indicates n-butyl cyanoacrylate; PVA, polyvinyl alcohol.