TABLE 1:

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.