Electrocochleographic Study of a Case of Lermoyez's Syndrome

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Abstract
A case of Lermoyez's syndrome was investigated by tone-burst electrocochleography in both a period of impaired hearing and in a period of almost normal hearing. The changes in threshold values, compound action potential waveforms, input-output curves, and amplitude-latency curves for the compound AP, are described. The electrocochleographic data are compared with the psycho-acoustic data for this case and with electrocochleographic results in a group of 22 Menière cases. Although the symptoms of vertigo and hearing impairment in Lermoyez's syndrome occur in the reverse sequence, as compared with the classical Menière attack, the data obtained in this case of Lermoyez's syndrome do not differ substantially from those obtained in a group of Menière cases.

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