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Stapedius Reflex Decay in Myasthenia Gravis
Journal article   Peer reviewed

Stapedius Reflex Decay in Myasthenia Gravis

Walter R Warren, Ludwig Gutmann, Robert C Cody, Phyllis Flowers and Alan T Segal
Archives of neurology (Chicago), Vol.34(8), pp.496-497
08/01/1977
DOI: 10.1001/archneur.1977.00500200056011
PMID: 889483

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Abstract

• Stapedius reflex decay, in response to a one-minute sound stimulus of 500 Hz occurred in six patients with myasthenia gravis. This decay is analagous to the decremental response of muscle action potentials to rapid nerve stimulation. Edrophonium chloride decreases the degree of decay. This represents a useful test in the diagnosis of myasthenia gravis.

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