Masseter reflex in the study of spinocerebellar ataxia type 2 and type 3.

Abstract excerpt

In this investigation we assess the utility of the masseter reflex for diagnostic purposes in autosomal dominant cerebellar ataxias. We studied the masseter reflex electrophysiologically in spinocerebellar ataxia type 2 (SCA2, 10 patients) and type 3 (SCA3/MJD, 13 patients). In SCA2, the masseter reflex was abnormal in 9 (90%) patients. In SCA3/MJD, the masseter reflex was normal in all 13 patients. Our findings...

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