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Follow-up Study of Sudden Deafness Noriyuki Yanagita 1 1Department of Otolaryngology, Nagoya University School of Medicine pp.233-239
Published Date 1981/4/20
DOI https://doi.org/10.11477/mf.1492209237
  • Abstract
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 The audiometric follow-up study on 61 patients with sudden deafness with duration of more than 5 years was reported.

 Deterioration of their hearing after a long period of time was more remarkable on the impaired side than on the intact side. A significant difference was observed by the use of chisquare test.

 The tendency of the deterioration was mainly shown at high frequency tones, and this fact was mostly prominent in the patients whose hearing impairment was found at high frequency tones and was fixed at the certain level.

 The deterioration was probably caused by not aging but the circulatory disorders in the inner ear.


Copyright © 1981, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 印刷版ISSN 0386-9679 医学書院

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