均衡噪声阈值检测法研究耳蜗死区在感音神经性聋患者耳蜗中的分布

Application of the TEN(HL) Test on the study of Distribution of Cochlear Dead Regions in Sensorineural Hearing Loss Patients

许雪波;祝晓芬;兰明;

1:广西梧州市工人医院耳鼻咽喉科

2:广东省惠州市第一人民医院耳鼻咽喉科

3:广东佛山市美声听觉技术有限公司

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摘要

目的探讨在感音神经性聋患者中是否存在耳蜗死区及其分布情况。方法采用均衡噪声阈值检测法检测82例(130耳)感音神经性聋患者和25例(50耳)正常听力者是否存在耳蜗死区,并比较耳蜗死区与性别、年龄、耳别、听力损失程度以及病程的关系。结果 82例感音神经性聋患者中有41.46%(34/82)存在耳蜗死区,正常听力者中无耳蜗死区,两者差异具有统计学意义(P<0.01)。耳蜗死区的存在在性别、年龄和耳别之间无明显差异,而不同听力损失程度、病程的感音神经性聋患者耳蜗死区的检出率差异有统计学意义(P<0.05),听力损失越重,病程越长,检出率越高。33.85%(44/130)受试耳存在耳蜗死区,其中高频区耳蜗存在死区者占23.08%(30/130),低频区耳蜗存在死区者占2.31%(3/130),高低频区同时存在耳蜗死区者占8.46%(11/130),高频耳蜗死区检出率远高于低频区。结论在感音神经性聋患者存在耳蜗死区中,耳蜗死区的存在与听力损失程度及病程有关,听力损失程度越重、听力受损时间越长,存在耳蜗死区的可能性越大。

关键词

耳蜗死区;感音神经性聋;均衡噪声阈值检测法

基金项目(Foundation):

作者

许雪波;祝晓芬;兰明;

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耳蜗死区感音神经性聋均衡噪声阈值检测法

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许雪波祝晓芬兰明