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Eustachian Tube Function of Cleft Palate Patients Yasuyuki Tasaka 1 1Department of Otolaryngology, Faculty of Medicine, Kyoto University pp.1051-1055
Published Date 1986/12/20
DOI https://doi.org/10.11477/mf.1492210238

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  • Abstract
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 Eustachian tube function of cleft palate patients (73 ears) was examined by inflation-deflation test, clearance function test, and endoscopy of the pharyngeal orifice of the tube. Characteristic findings were as follows ;

 1. Abnormal movement around the pharyngealorifice of the tube both during swallowing and phonation were observed. Ninety four per cent of the tested ears showed no dilation of the orifice, indicating either hypofunction of the tensor muscle or abnormal pathway of the levator muscle.

 2. Averaged opening pressure of the tube was 280±160mmH2O in cleft palate patients, which was significantly lower than those without cleft palate.

 3. Sixty one per cent of the tested ears equilibrated applied positive middle ear pressure during swallowing, but 32% of the ears equilibrated itduring phonation. Thus the active tubal opening appeared to be performed not only by the tensor muscle.

 4. Almost all ears could not equilibrate negative middle ear pressure, indicating fragile structure of the eustachian tube.

 5. Ciliary function of the tube in cleft palate patients was generally good.

 Both anatomical abnormality of the muscles related to the eustachian tube and fragile structure of the tube were estimated to be the main causes of the OME in the cleft palate population.


Copyright © 1986, 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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