Progressive myoclonic ataxia (the Ramsay Hunt syndrome)
Marsden CD, Harding AE, Obeso JA, Lu CS.
University Department of Clinical Neurology, Institutes of Neurology, London, England
Revisão:Archives of Neurology
Data: 30/Set/1990Neurologia [ES]
It has been suggested from studies of patients with progressive myoclonus epilepsy that the term Ramsay Hunt syndrome should be abandoned, as its use has led to nosologic confusion, and because, in the light of modern diagnostic techniques, the majority of cases can be allocated to specific disease categories, chiefly, Unverricht-Lundborg disease (Baltic myoclonus) and mitochondrial encephalomyopathy.
Review of 30 cases of this syndrome, defined as progressive ataxia and myoclonus and infrequent seizures in the absence of dementia, showed that a clinical or biochemically supported diagnosis could not be made in 43%. This low diagnostic yield probably reflects differences in ascertainment of patients; those described here were referred with a syndrome of progressive myoclonic ataxia (the Ramsay Hunt syndrome) rather than progressive myoclonus epilepsy.
These two syndromes share common causes, but a smaller proportion of patients with progressive myoclonic ataxia can currently be diagnosed precisely during life.
CITAÇÃO DO ARTIGO Arch Neurol. 1990 Oct;47(10):1121-5
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