An unusual etiology of subarachnoid hemorrhage, basilar artery perforator aneurysms, in Macao: Three case reports and review of literature

Table 1 Demographic and treatment data for each patient

Patient	Age in yr	Sex	Modified Fisher grade	Detection on initial angiography	Size in mm	Location of perforating artery of BA	Treatment	Material for embolization	Infarction post-treatment	Rebleed after treatment	Clinical outcome	Length of follow-up
1	58	F	1	Yes	4.2 × 2.6 × 3.0	Mid 1/3	Endovascular	Coils	No	No	Stable	18 months
2	79	F	1	Yes	2.0 × 2.0 × 2.5	Distal 1/3	Endovascular	Coils	Yes	No	Dead	2 months
3	31	F	4	Yes	3.0 × 2.5 × 3.0	Mid 1/3	Endovascular	Coils	No	No	Stable	24 months

BA: Basilar artery; F: Female.