Prophylactic Intra-Arterial Injection of Vasodilator for Asymptomatic Vasospasm Converts the Patient to Symptomatic Vasospasm due to Severe Microcirculatory Imbalance

Table 1

Analyzed patients. All cases are female and the Fisher Group of all cases is three.

	Age	Location of aneurysm	Hunt-Hess grade	Day of postclipping DSA	Position of catheter for IA	Onset of symptom after IA	Etiologic artery	GOS at 30 days
Case 1	45	A. com	2	9	Lt. IC	8 hours	Lt. MCA	Good; recovery
Case 2	69	Rt. IC	3	7	Rt. IC	2 days	Rt. MCA	Moderate disability
Case 3	69	Lt. MCA	1	9	Lt. IC	1 day	Lt. MCA	Good; recovery
Case 4	75	Rt. MCA	2	8	Rt. MCA	1 day	Upper branch of rt. MCA	Moderate disability

A. com: anterior communicating aneurysm. DSA: digital subtraction angiography. GCS: Glasgow Outcome Scale. IA: intra-arterial injection of medicine. IC: internal carotid artery. MCA: middle cerebral artery.