大規模音楽イベントは亜臨床的な聴覚障害を引き起こす可能性がある
Nele De Poortere1, Wannes Van Ransbeeck2, Sarineh Keshishzadeh2
1Department of Rehabilitation Sciences, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium. nele.depoortere@ugent.be.
Scientific reports
|January 6, 2026
まとめ
通常の聴力検査でも、聴力検査で正常であっても、安全でない聴覚は隠れた聴覚障害、蝸牛性シナプス症を引き起こす可能性があります。若年者におけるこの亜臨床的損傷を特定するには、早期検出方法が必要です。
科学分野:
- 聴覚学
- 神経科学
- 公衆衛生
背景:
- 11億人以上の若者が安全でないレクリエーション聴取による難聴のリスクに直面しています。
- 従来の聴力検査では、聴覚処理に影響を与える隠れた損傷である騒音誘発性蝸牛性シナプス症(CS)を見逃す可能性があります。
研究 の 目的:
- レクリエーション騒音曝露と聴力測定および隠れた聴覚変化の両方の関連を縦断的に調査すること。
- 騒音誘発性聴覚障害の検出における個人用線量測定、聴力測定、および生理学的マーカーの有効性を評価すること。
主な方法:
- 42人の若者を、音楽イベントの前後に個人用サウンド線量計、聴力測定、耳音響放射、および聴覚誘発電位(AEP)を使用して監視しました。
- 曝露レベルは平均100 dBAで、10時間以上に及びました。
主要な成果:
- わずか1人の参加者だけが有意な聴覚感度低下を示しましたが、5人は曝露後24時間以内にシナプス損傷の急性AEPマーカーを示しました。
- 正常な聴力図にもかかわらず、この亜臨床的損傷は2人の個人で最大14日間持続しました。
- 騒音曝露レベルと損傷との直接的な相関関係は見られず、個々の感受性を示唆しています。
結論:
- 標準的な聴力測定では、蝸牛性シナプス症のような早期の騒音誘発性聴覚障害を検出できない場合があります。
- 亜臨床的な聴覚問題を特定する診断ツールの重要な必要性があります。
- 保護戦略と監視慣行は、個々の脆弱性と現実世界の騒音曝露の変動性を考慮する必要があります。
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