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CLINICAL OBSERVATIONS OF PERCEPTIVE DEAFNESS OF UNKNOWN CAUSES Ichiro Kirikae 1 pp.1149-1158
Published Date 1967/11/20
DOI https://doi.org/10.11477/mf.1492203843
  • Abstract
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 A series of 103 cases (52 males and 51 females) are reported. The onset of the deafness mostly ranged from age ten to fourteen years.

 There were several audiometric patterns in which the low or middle tone deafness was frequently found, Symmetrical audiometric patterns were seen in more than eighty per cent.

 Deafness may incrcase relatively soon after the onset of the disease but thereafter stop progressing. Some clinical tests showed thatthe inner ear was the site of lesion.

 From these data there seems a certain hereditary background in the perceptive deafness of unknown causes.


Copyright © 1967, 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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