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常频听阈正常的噪声暴露者耳蜗电图表现

The Acoustic Performance of Noise-induced Hidden Hearing Loss in Electrocochleography

龚嘉敏;赵乌兰;吴雅兰;张美辨;邱伟;

1:浙江中医药大学医学技术学院

2:浙江省疾病预防控制中心

3:Auditory Research Laboratories

4:State University of New York at Plattsburgh

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摘要

目的探讨耳蜗电图对噪声导致的隐性听力损失的早期诊断价值。方法选取36例18～40岁的常频听阈正常受试者,其中18例有噪声暴露史的工人作为噪声暴露组,18例无噪声暴露史的正常受试者作为对照组,分别行纯音听阈测试(常频+高频)、噪声下言语测试以及耳蜗电图测试,比较各组检查结果。结果噪声暴露组和对照组18、20 kHz听阈检出率分别为55.6%、33.3%和88.9%、88.3%,噪声暴露组低于对照组,差异有统计学意义(P<0.05);10、12.5 kHz平均听阈分别为11.94±15.16、16.39±20.87 dB HL和3.89±15.20、6.94±20.87 dB HL,噪声暴露组高于对照组(P<0.05);言语测试结果示噪声暴露组和对照组信噪比损失平均值分别为4.62±2.52 dB和1.44±2.90 dB,噪声暴露组高于对照组(P<0.01)。耳蜗电图测试结果示,噪声暴露组SP/AP振幅比在96和90 dB nHL刺激强度下高于对照组,差异有统计学意义(P<0.05),SP/AP面积比在96 dB nHL刺激强度下高于对照组,差异有统计学意义(P<0.05)。结论高强度刺激下(96 dB nHL)耳蜗电图SP/AP振幅比和面积比对噪声导致的隐性听力损失检测有一定的参考价值。

关键词

噪声暴露;隐性听力损失;耳蜗电图

基金项目(Foundation):

美国国立失聪和其他沟通障碍研究院(NIDCD/NIH,1R01DC015990);; 浙江省重点研发计划项目(2015C03039);; 西万拓听力奖学金项目(782299A00501)

作者

龚嘉敏;赵乌兰;吴雅兰;张美辨;邱伟;

参考文献

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