Isaac's syndrome: report of a case responding to valproic acid.

T. J. O'Brien, P. Gates

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Abstract

Isaac's syndrome is an uncommon, but distressing, condition of spontaneous abnormal muscle activity caused by neuronal hyperexcitability possibly due to damage to slow potassium channels. The underlying aetiology may be peripheral nerve damage from a wide variety of causes, including autoimmune disease. We report a case that failed to respond to carbamazepine or phenytoin but responded dramatically to valproic acid. Thus, valproic acid may be an effective treatment for Isaac's syndrome where these other drugs have failed.

Original languageEnglish
Pages (from-to)52-60
Number of pages9
JournalClinical and Experimental Neurology
Volume31
Publication statusPublished - 1 Dec 1994
Externally publishedYes

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