Inner ear auditory testing in patients with normal hearing showing hyperacusis

DOI 3 Citations 26 References
  • Kimitsuki Takashi
    Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University
  • Matsumoto Nozomu
    Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University
  • Takaiwa Kazutaka
    Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University
  • Ohashi Mitsuru
    Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University
  • Komune Noritaka
    Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University
  • Noguchi Atsuko
    Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University
  • Horikiri Kazuha
    Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University
  • Komune Shizuo
    Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University

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Other Title
  • 聴力に異常のない聴覚過敏患者における内耳機能検査の特徴

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Description

Hyperacusis denotes increased sensitivity and unpleasant response to sounds at levels that would not disturb a normal individual. This auditory hypersensitivity may occur in patients with normal hearing. We analyzed 24 patients (eight male, sixteen female) who complained of hyperacusis in the absence of hearing disturbances. These patients underwent the SISI (short increment sensitivity index) test, MCL/UCL (most comfortable loudness level/uncomfortable loudness level) test, Bekesy audiometry, and Metz test, and the positivity rate of the recruitment phenomenon was examined. Despite normal hearing, 17 patients (71%) showed positive results in some of these tests. The positivity rates of the SISI test, MCL/UCL test, Bekesy audiometry and Metz test were 27%, 38%, 38% and 33%, respectively. Nine patients (37.5%) complained of unilateral hyperacusis and fifteen patients (62.5%) complained of bilateral hyperacusis. In the subjects with unilateral hyperacusis, the side showing positivity of the recruitment phenomenon did not completely correspond to the symptomatic side.

Journal

  • AUDIOLOGY JAPAN

    AUDIOLOGY JAPAN 52 (3), 152-156, 2009

    Japan Audiological Society

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