Migrainous vasospasm is a subset of reversible cerebral vasoconstriction syndrome (RCVS). It is also known as "crash migraine", although it is sometimes described as a separate condition.
Whether migraine is actually a predisposing factor to RCVS or it is simply that migraine is common (up to 12% of the population) and will, therefore, be reported by patients with RCVS, is uncertain. Migraineurs with RCVS do not report typical migrainous auras and is different from their usual migraines.
- 1. Calabrese LH, Dodick DW, Schwedt TJ et-al. Narrative review: reversible cerebral vasoconstriction syndromes. Ann. Intern. Med. 2007;146 (1): 34-44. Pubmed citation
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