在耳植入器接受者中,对耳内电脑耳学幅度模式的纵向分析
Marlies Geys1, Ahmet Kunut, Rahel Bertschinger
1Department of Otorhinolaryngology, Head & Neck Surgery, University Hospital Zurich, University of Zurich, Zurich, Switzerland.
Ear and hearing
|February 6, 2026
概括
在耳植入物 (CI) 接受者中,电心电图 (ECochG) 振幅的早期术后降低与听力保护 (HP) 有关. 在电极阵列插入期间和之后监测ECochG振幅和位置可以揭示影响听力结果的耳内变化.
科学领域:
- 耳声发射和电生理学.
- 听觉神经生理学 听觉神经生理学
- 耳植入器技术 耳植入器技术
背景情况:
- 耳内电耳学 (ECochG) 显示了对耳内植入物 (CI) 接受者的耳内功能监测的希望.
- 在插入电极阵列 (EA) 后,ECochG振幅变化,音位位置和听力保护 (HP) 之间的关系需要进一步调查.
研究的目的:
- 从EA插入到植入1年后,纵向监测最大ECochG振幅及其音位位置.
- 为了研究这种假设,即ECochG振幅或位置的变化反映了影响残留听力的耳内耳内变化.
主要方法:
- 在80名成年IC接受者中进行了ECochG记录,在四个时间点进行了可测量的残留听力:手术期间 (在EA插入期间和之后),以及手术后 (7周和1年).
- 测量使用500赫兹的音频爆发,分析了交替极性响应之间的差异.
- 通过CT扫描确定了音标位置,并使用HEARRING组公式评估了听力保护.
主要成果:
- 最大ECochG振幅在手术期间稳定,但在直接插入后和早期术后期间显著下降.
- 在早期的术后期,幅度减少>30%与听力保护的降低显著相关 (p = 0.028).
- 在手术期间的非鼻腔峰位位置和在术后的位位变化与听力保护没有显著的关联.
结论:
- 术后早期ECochG振幅的降低是常见的,与听力保护的降低相关,这表明需要采取策略来缓解早期的内反应.
- 电心电图对于随着时间的推移监测内进程非常有价值,而手术时的振幅和位置保持稳定.
- 非鼻腔峰值模式可能表明耳完整性的变化,而不是插入创伤.
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