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Japanese

Postoperative Normalization of Auditory Brainstem Response in Three Patients with Acoustic Neuroma Masaru Aoyagi 1 1Department of Otolaryngology, Yamagata University School of Medicine pp.185-191
Published Date 1992/3/20
DOI https://doi.org/10.11477/mf.1411900508
  • Abstract
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Three cases of acoustic neuroma excised with postoperative preservation of cochlear nerve func-tion and normalization of auditory brainstem response (ABR) are reported. All three cases had a nearly normal hearing preoperatively and underwent surgery by the middle fossa approach. Whereas improvement of ABR findings was ob-served within one week after surgery in case 3,ABR were impaired about two weeks after sur-gery and normalization of ABR was observed within 7 to 10 months following surgery in cases 1 and 2.

The mechanisms of improvement in ABR find-ings after acoustic neuroma surgery arc discuss-ed and the literature concerning improvement and normalization of ABR in patients with acoustic neuroma and after acoustic neuroma surgery was reviewed.


Copyright © 1992, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1316 印刷版ISSN 0914-3491 医学書院

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