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A Study of Eustachian Tube Closing Disturbance by Sonomanotubometry Yeshinobu Hirono 1 1Department of Otolaryngology, Faculty of Medicine, Kyoto University pp.23-28
Published Date 1987/1/20
DOI https://doi.org/10.11477/mf.1492210245
  • Abstract
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 Sonomanotubometry is a method for detecting the change of sound transmission through the eustachian tube under the pressure load to middle ear cavity.

 By this method we demonstrated the actual condition of "floppy tube" and "eustachian tube closing failure".

 Eustachian tube closing disturbance was defined as that the rise of sound pressure level in the ear canal continued after the opening of eustachian tube and it fell by negative pressure apply to the middle ear cavity.

 This closing disturbance was not uncommon in middle ear diseases.


Copyright © 1987, 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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