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pp.177-185
Published Date 1960/3/20
DOI https://doi.org/10.11477/mf.1492202404

 A series of 19 cases of sudden deafness was reported. In 9 of these cases a normal range of hearing was recovered within 40 days after the onset of the affection. In latter cases no vestibular symptoms were noted and the caloric reaction of the labyrinthappeared to be normal.

 The forms with which recovery occurred in the impairment of hearing were divided into several types according to the speed of that recovery with responses to different frequencies.

 Prognosis of hearing recovery in patients showing vestibular symptoms or an abrupt forms of hearing loss in the audiogram was found to be bad, even if the treatments among them were instituted early in the stage of the disease.

 Pathogenesis of sudden deafness is discussed from the viewpoint of vascular involvement of the inner ear.


Copyright © 1960, 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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