耳鳴患者におけるＤＰＯＡＥ検査の意義

• 泰地 秀信

  国立病院東京医療センター耳鼻咽喉科

• 小川 茂雄

  国立病院東京医療センター耳鼻咽喉科

• 岡本 健

  国立病院東京医療センター耳鼻咽喉科

書誌事項

タイトル別名

• Clinical Significance of Distortion Product Otoacoustic Emissions in Patients with Tinnitus.

抄録

We investigated the 2f₁-f₂ distortion products (DPs) in 5 normal-hearing subjects with unilateral tinnitus. There was no significant difference in the contralateral DPs suppression between tinnitus ears and healthy ears. However, this result did not show no relationship between tinnitus and the efferent system, since the clinical utility of the suppressive effect of a contralateral sound was restricted from 1 to 2kHz in our equipment. DPs amplitude and its variability were assessed in 1/5 octave steps from 1 to 8kHz. There was a tendency for DPs amplitude and its variability to decrease in tinnitus ears. This result was hardly explained by cochlear mechanism, since variability generally increased when DPs amplitude decreased. Therefore, our data implied the notion that the medial olivocochlear efferents were activated in tinnitus ears.

収録刊行物

• ＡＵＤＩＯＬＯＧＹ　ＪＡＰＡＮ

  ＡＵＤＩＯＬＯＧＹ　ＪＡＰＡＮ 42 (2), 83-87, 1999

  一般社団法人 日本聴覚医学会

キーワード

• 耳音響放射
• 耳鳴
• 無難聴性耳鳴
• 聴覚の遠心性機能

詳細情報

• CRID: 1390282679815090816
• NII論文ID: 130003712788
• NII論文ID: 10008447738
• NII書誌ID: AN00000347
• DOI: 10.4295/audiology.42.83
• ISSN: 18837301
• ISSN: 03038106
• ISSN: http://id.crossref.org/issn/03038106
• Web Site: https://search.jamas.or.jp/link/ui/1999223698
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可