R583Q CACNA1A variant in SHM1 and ataxia: case report and literature update.
J Headache Pain
; 13(5): 419-23, 2012 Jul.
Article
em En
| MEDLINE
| ID: mdl-22527033
ABSTRACT
Familial hemiplegic migraine (FHM) type 1 is a rare monogenic dominant autosomal disease due to CACNA1A gene mutations. Besides the classical phenotype, mutations on CACNA1A gene are associated with a broader spectrum of clinical features including cerebellar ataxia, making FHM1 a complex channelopathy. We report the case of a patient carrying the p.Arg583Gln mutation affected by hemiplegic migraine and late onset ataxia and we performed a literature review about the clinical features of p.Arg583Gln. Although p.Arg583Gln mutations are associated with a heterogeneous phenotype, carriers present cerebellar signs which consisted generally in ataxia and dysmetria, with intention tremor appearing mostly in advanced age, often progressive and permanent. The heterogeneous spectrum of CACNA1A gene mutations probably causes sporadic hemiplegic migraine (SHM) to be misdiagnosed. Given the therapeutic opportunities, SHM/FHM1 should be considered in differential diagnosis of patients with cerebellar ataxia and migraine with aura.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Arginina
/
Ataxia
/
Canais de Cálcio
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Enxaqueca com Aura
/
Glutamina
Tipo de estudo:
Diagnostic_studies
/
Systematic_reviews
Limite:
Female
/
Humans
/
Middle aged
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article