听力正常的个体中的耳:外皮毛细胞功能障碍是机制吗?
Theognosia Chimona1, Maria Vrentzou1, Emmanouel Erotokritakis2
1ENT Department of Chania General Hospital, 73133 Chania, Greece.
Journal of clinical medicine
|August 14, 2025
概括
与没有耳的人相比,正常听力和耳的个体表现出较低的耳声扭曲产品排放 (DPOAEs). 耳的音调通常与显示异常DPOAE的频率保持一致,这表明耳功能障碍.
科学领域:
- 耳声波排放 耳声波排放 耳声波排放
- 听觉神经科学 听觉神经科学
- 耳研究研究 耳研究
背景情况:
- 耳损伤是听力障碍者耳的已知原因之一.
- 耳也可能发生在正常听力的人身上,这表明其他潜在的机制.
- 耳声扭曲产品排放 (DPOAEs) 是对尾外毛细胞功能的客观测量.
研究的目的:
- 评估在正常听力但感觉到耳的个体中DPOAE.
- 研究DPOAE测量与正常听力个体中的耳特征之间的关系.
主要方法:
- 前性研究比较了一个有正常听觉的耳组 (TG,n=34) 和一个有正常听觉但没有耳的对照组 (CG,n=10).
- 参与者接受了耳鼻喉科检查,纯音声听力测量和DPOAE记录 (DP-gram).
- 在TG中评估了耳病史,自我评价的声音强度和耳障碍库存 (THI-G).
主要成果:
- 与CG相比,TG中的平均DPOAE振幅在低频和高频时明显较低.
- 耳音调匹配经常发生在频率与异常或缺席DPOAE的频率上.
- 在4000Hz左右的异常DPOAEs与突然发作的耳和严重残疾相关 (THI-G>58).
- 病理性DPOAEs在≥6000 Hz时与逐渐发病的耳有关.
结论:
- 与没有耳的人相比,正常听觉的耳患者表现出较低的DPOAE振幅,特别是在低频和高频时.
- 耳感知的频率通常与异常DPOAEs的区域相对应,表明局部耳功能障碍.
- DPOAE测量可以为正常听力个体的耳病理生理学提供客观的见解.
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