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Migraine and cerebrovascular disease

Agostoni E, Rigamonti A

Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2007

Abstract

The association between migraine and stroke is complex and bidirectional. Epidemiological studies suggest that migraine may be a risk factor for stroke; magnetic resonance studies suggest that white matter abnormalities may be more frequent in migraine patients than in controls; and stroke may occur during the course of a migraine with aura (MA) attack (migrainous stroke). However, the relationship between migraine, aura and stroke is complex and mechanisms other than a direct cause/effect relationship are possible. Migraine aura may be the consequence, rather than the cause of cerebral ischaemia. Furthermore both MA and stroke may be secondary to a third underlying condition. In this review we analyse data regarding the relationship between migraine and stroke considering 3 aspects: (1) migraine as a risk factor for stroke, (2) migraine as a cause of stroke and (3) migraine and cerebral ischaemia sharing a common cause.

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