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PubMed · 8128862

Pressure test in normal subjects.

M Kitahara·A Kodama·H Ozawa·H Izukura
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Abstract

The application of pressure to the middle ear changes the normal inner ear pressure in animal experiments. In this study we tested the effect of exposure to under- or overpressure on hearing in a total of 78 normal ears (40 subjects) in a soundproof pressure chamber. [After exposure to underpressure, a 10 dB or more gain in 3 ears and loss in 2 ears for at least one of the test frequencies was observed in 38 ears. After exposure to overpressure, a 10 dB or more gain in 5 ears and loss in 1 ear for at least one of the test frequencies was observed in 40 ears.] The characteristics of transferred inner ear pressure during a series of exposures to underpressure seemed to be similar to those during exposures to overpressure.

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Acoustic Impedance TestsAtmosphere Exposure ChambersAtmospheric PressureAudiometry, Pure-ToneEar, MiddleEustachian TubeHearingHumansNoisePressureJournal Article

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BibTeXRIS

M Kitahara, A Kodama, H Ozawa, H Izukura. 1994. Pressure test in normal subjects.. https://doi.org/10.3109/00016489409127314

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