Clinical data for the study patients

Age/Sex	Aneurysm Location	Aneurysm Size, mm	Hunt and Hess Grade	Symptomatic Vasospasm	GOS Status after Initial Event
72/M	Acom	10	IV	No	Good
77/M	Pcom	6	V	No	Died
75/F	Acom	5	V	Yes	Died
	MCA*	2
80/F	Acom	7	V	No	Died
73/F	Sup Hypo	25	IV	Yes	Good
79/F	PICA†	3	IV	No	Moderately disabled
75/M	Acom	7	IV	Yes	Moderately disabled
71/F	Basilar	18	V	No	Moderately disabled
72/M	Pcallosal	6	V	Yes	Died
77/F	Pcallosal	3	V	No	Severely disabled
	Cav caro*	2
89/F	Acom	4	IV	No	Died
	Pcom	4
75/F	Pcom	7	V	Yes	Severely disabled
73/F	PICA	5	V	Yes	Died

Note.—Acom = anterior communicating artery, Cav caro = cavernous carotid artery, GOS = Glasgow outcome scale, MCA = middle cerebral artery, Pcallosal = pericallosal artery, Pcom = posterior communicating artery, PICA = posterior inferior cerebellar artery, and Sup Hypo = superior hypophyseal artery.

^*Untreated aneurysm.

^†This patient had four small aneurysms arising from PICA.