Scientific publications

Use of distortion-product otoacoustic emissions for auditory evaluation in Menière's disease

Pérez N, Espinosa JM, Fernández S, García-Tapia R.
Department of Otorhinolaryngology-Head and Neck Surgery, Clínica Universitaria de Navarra, Spain.

Magazine: European Archives of Oto-Rhino-Laryngology

Date: Jan 1, 1997

Otorhinolaryngology Department [SP]

Otoacoustic emissions are a relatively new tool for assessment of inner ear function.

We studied 65 patients diagnosed as having Menière's disease. In order to obtain and characterize responses at different frequencies we used distortion-product otoacoustic emissions (DPOAE). In unilateral cases, the difference in response between ears on the diseased and healthy sides was evident at all frequencies. In the former the result was lower than expected for a group of normally hearing subjects, while in the latter it was better than expected according to pure tone averages.

Reduction in amplitude and increment in threshold of the DPOAE in the diseased ear was a significant finding and could be correlated to the stage of the disease. In those subjects treated with Betahistine after 1 year's follow-up, DPOAE testing showed the recovery of response at low frequencies and a reduction of its threshold at all frequencies studied.

CITATION Eur Arch Otorhinolaryngol. 1997;254(7):329-42

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