摘要
目的比较噪声作业工人40 Hz听觉诱发电位(40 Hz AERP)与纯音听阈(PTA)的一致性,评价40 Hz AERP在噪声作业工人听力测试中的应用价值。方法采用方便抽样方法,以PTA高频听阈>25 dB的噪声作业工人120名240耳为研究对象,检测各耳不同频率的PTA和40 Hz AERP阈值。根据PTA语频平均听阈分为正常听力组和轻度、中度、中重度、重度听力损失组耳,分析其40 Hz AERP与PTA阈值的差异和相关性。结果听力正常和轻度、中度听力损失组耳0.5、1.0、2.0 kHz的40 Hz AERP反应阈均高于PTA听阈(P<0.01);中重度、重度听力损失组耳0.5 kHz的40 Hz AERP反应阈均低于PTA听阈(P<0.05)。听力正常组耳1.0、2.0 kHz的40 Hz AERP反应阈与PTA差值均高于0.5 kHz(中位数:25.0 vs 15.0 dBHL,30.0 vs 15.0 dBHL,P<0.01);除0.5和1.0 kHz轻度听力损失组外,其余各听力损失组耳的40 Hz AERP反应阈与PTA差值均低于听力正常组(P<0.01)。40 Hz AERP反应阈具有频率特异性,与相同频率PTA相关性较好;两者0.5、1.0、2.0 kHz的相关系数分别为0.744、0.732和0.665(P<0.01)。结论 40 Hz AERP反应阈评估噪声作业人员PTA具有可行性,但不可完全替代PTA,还需同时考虑测定频率和听力损失程度。
Objective To evaluate the application value of 40 Hz auditory event related potential(40 Hz AERP) in hearing assessment in workers exposed to noise by observing the consistency between pure tone audiometry(PTA) and 40 Hz AERP. Methods A total of 240 ears of 120 workers who exposed to noise with PTA high-frequency hearing threshold > 25 dB were selected as the research subjects using the convenient sampling method. The thresholds of PTA and 40 Hz AERP at different frequencies were investigated. According to the average hearing threshold of PTA language frequency, the workers were divided into normal hearing group and mild-, medium-, medium-severe-, severe-hearing loss groups, and the difference and correlation between the thresholds of 40 Hz auditory potential and PTA were analyzed. Results The response thresholds of 40 Hz AERP of 0.5, 1.0, 2.0 kHz in ears of normal hearing group, and mild-and moderate-hearing loss groups were higher than the PTA hearing threshold(P<0.01), while the 40 Hz AERP response thresholds of 0.5 kHz in the ears of medium-severe-and severe-hearing loss groups were lower than the hearing thresholds of PTA(P<0.05). The different value of the response threshold of 40 Hz AERP and PTA of 1.0 and 2.0 kHz in ears of normal hearing group was higher than 0.5 kHz(median: 25.0 vs 15.0 dBHL, 30.0 vs 15.0 dBHL, P<0.01). Except for 0.5 and 1.0 kHz of mild-hearing loss group, the different value of the response threshold of 40 Hz AERP and PTA in ears of the other hearing loss groups were lower than that of the normal hearing group(P<0.01). The 40 Hz AERP response threshold was frequency-specific and correlated well with PTA at the same frequency. The correlation coefficients of 0.5, 1.0 and 2.0 kHz were 0.744, 0.732 and 0.665 respectively(P<0.01). Conclusion It is feasible to evaluate PTA in noise-exposed workers using 40 Hz AERP response threshold, but the 40 Hz AERP cannot completely replace PTA. The measurement frequency and the degree of hearing loss should be considered simultaneously.
作者
苏冬梅
许雪春
李雨铮
吴艳辉
王珍
SU Dongmei;XU Xuechun;LI Yuzheng;WU Yanhui;WNAG Zhen(Henan Institute of Occupational Medicine,Zhengzhou,Henan 450052,China)
出处
《中国职业医学》
CAS
北大核心
2020年第3期319-323,共5页
China Occupational Medicine
关键词
40
Hz听觉诱发电位
纯音听阈
阈值
相关性
评估
噪声
工人
40 Hz auditory event related potential
Pure tone audiometry
Threshold
Correlation
Assessment
Noise
Worker
