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Perilymph Fistulae Takashi Fukaya 1 , Yasuya Nomura 1 1Department of Otolaryngology, Faculty of Medicine, University of Tokyo pp.271-278
Published Date 1985/4/20
DOI https://doi.org/10.11477/mf.1492209940
  • Abstract
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 One hundred and fifteen cases with surgically explored perilymph fistulae were reviewed. They were subdivided, according to etiology, into barotrauma-tic (Ba) and spontaneous (Sp) types. Other types such as traumatic, iatrogenic and congenital were excluded in this study. There were 53 males and 44 females. The age ranged from 6 years to 68 years. The median age was 35.9 years. There were 37 right ears, 46 left ears and 6 both ears. No ear predilection was found in this study. The majority had a history of physical exertion or upper respiratory infection in the Sp type, scuba dive prior to onset in the Ba type. Onset of deafness was sudden in most cases, but there were 8 progressively deteriorated and 3 fluctuating cases. Preoperative audiologic and vestibular findings were of little value in deciding whether or not a fistula was present. In all cases, a fistula or perilymph seepage was found at the time of surgery. There were 35 oval window fistulae, 59 round window fistulae and 7 both window fistulae. Postoperative hearing improvements was prevalent in the Ba type and in cases which were explored within 30 days after onset. Insofar as vestibular symptoms, postoperative results were quite excellent in most cases.

 We conclude that in a case of the suspected perilymph fistula, tympanotomy should be delayed few days, because of high incidence of the spontaneous recovery of deafness within this period, and that surgery should be performed within 30 days to get hearing improvements.


Copyright © 1985, 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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