Study on the Relationship between Signal-to-Noise Ratio Loss and Electrocochleography in Noise Exposure
10.3969/j.issn.1006-7299.2024.05.005
- VernacularTitle:噪声暴露者的噪声下信噪比损失与耳蜗电图的关系研究
- Author:
Yuhan HUANG
1
;
Wulan ZHAO
;
Wei QIU
;
Fei XU
Author Information
1. 浙江中医药大学医学技术与信息工程学院(杭州 310053)
- Keywords:
Noise exposure;
Speech recognition under noise;
Electrocochleography;
Hidden hearing loss
- From:
Journal of Audiology and Speech Pathology
2024;32(5):409-412
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the relationship between signal-to-noise ratio loss and electrocochleo-gram in noise exposed subjects and its assistive diagnosis value for hidden hearing loss.Methods Forty-one workers with a history of noise exposure were tested with pure tone audiometry,acoustic immittance,speech recognition un-der noise and electrocochleogram.They were divided into two groups according to their speech recognition ability under noise:Group A:SNR loss＜0(19 ears),Group B:SNR loss＞0(22 ears).The difference of electrocochleo-gram between the two groups was recorded and analyzed.Results The results of speech recognition test showed that there was significant difference in SNR loss between Group A and Group B(P＜0.05).The results of cochlear electrogram showed that the AP amplitudes of the two groups were significantly different at 96,90 and 80 dB nHL(P＜0.05).At 96,90,80,70,60 dB nHL,there were significant differences in SP amplitudes between the two groups(P＜0.001).At 96,90,80 and 70 dB nHL,there was significant difference in SP/AP amplitude ratio be-tween the two groups(P＜0.05).Conclusion There is a significant difference of SP/AP amplitude ratio between subjects with SNR loss of＜0 and＞0 at different sound intensities.
