职业噪声暴露工人的听力与耳鸣分析
Analysis of Hearing and Tinnitus in Workers Exposed to Occupational Noise.
作者信息
Boger Marlene Escher, Sampaio André Luiz Lopes, Oliveira Carlos Augusto Costa Pires de
机构信息
Department of Health Sciences. University of Brasilia- Brasília -DF- Brazil.
Department of Otorhinolaryngology, Doc Med in Health Sciences.
出版信息
Int Tinnitus J. 2017 Apr 19;20(2):88-92. doi: 10.5935/0946-5448.20160017.
INTRODUCTION
Noise is one of the harmful agents to health that is present in the various branches of economic activity. Hearing loss and tinnitus are among the most frequently reported complaints by workers exposed to occupational noise.
OBJECTIVE
To analyze the hearing and tinnitus in normal-hearing workers exposed to occupational noise.
METHODS
This is a cross-sectional analytical trial in metallurgical industries, in which we evaluated normal-hearing workers through anamnesis, audiometry and otoacoustic emissions.
RESULTS
It was observed high prevalence of failure of otoacoustic emissions (40%) and tinnitus (66.6%). Both in the amplitude and in the signal-to-noise ratio, the higher is the frequency of the sound, the worse the results. Despite having audiometry within normal limits, the results indicate that workers are suffering the effects of exposure and reveals association between failure of otoacoustic emissions and tinnitus in this population (X = 6,732).
CONCLUSION
It is concluded that failures in DPOAE and tinnitus are predictors of hearing damage in normal-hearing workers.
引言
噪声是经济活动各领域中对健康有害的因素之一。听力损失和耳鸣是职业噪声暴露工人最常报告的症状。
目的
分析职业噪声暴露的听力正常工人的听力和耳鸣情况。
方法
这是一项在冶金行业开展的横断面分析试验，通过问诊、听力测定和耳声发射对听力正常的工人进行评估。
结果
观察到耳声发射失败（40%）和耳鸣（66.6%）的高患病率。无论是在幅度还是信噪比方面，声音频率越高，结果越差。尽管听力测定在正常范围内，但结果表明工人正遭受暴露的影响，并揭示了该人群中耳声发射失败与耳鸣之间的关联（X = 6,732）。
结论
得出结论，畸变产物耳声发射失败和耳鸣是听力正常工人听力损伤的预测指标。
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