畸变产物耳声发射在船员听力调查中的应用  

Application of distortion product otoacoustic emission to hearing investigation in the ship crew

作　　者：潘丽宁[1] 吴小海[1] 冯小玲[1] 

机构地区：[1]广东药学院附属新海医院,广东省广州510300

出　　处：《中华航海医学与高气压医学杂志》2009年第3期144-147,共4页Chinese Journal of Nautical Medicine and Hyperbaric Medicine

摘　　要：目的探讨畸变产物耳声发射（DPOAE）在船员噪声性听力损伤诊断中的应用价值。方法100名船员（其中噪声性耳聋组52人，听阈正常组48人）为实验组，另外50名听力正常人为对照组。对2组人员进行纯音听力测定和DPOAE检测，比较2组的听阂值和DPOAE幅值及引出率。结果噪声性聋组与对照组比较，所有频区听阈值差异均有统计学意义（P〈0．05），噪声性聋组DPOAE幅值和引出率较对照组明显下降（P〈0．05），随着接触噪声工龄的延长，DPOAE引出率逐渐下降（P〈0．05）。听阈正常组DPOAE幅值和引出率也较对照组明显下降（P〈0．05）。结论船员早期噪声性听力损伤纯音听阈可能正常，应用DPOAE可用于船员噪声性听力损伤的早期诊断和评估。Objective To explore the application of the distortion product otoacoustie emission （DPOAE） in the diagnosis of noise-induced heating damage for the ship crew. Methods The experimental group consisted of 100 crew members, among whom 52 had noise-induced hearing damage and 48 people had normal hearing thresholds. And another 50 people with normal hearing level were chosen as control. The two groups received acoustic emission, pure tone audiometry and DPOAE testing. Hearing thresholds, DPOAE amplitude and the provocation rate were compared between the two groups. Results Statistical differences could be noted in hearing thresholds in all frequency zones, when a comparison was made between the noise-induced hearing damage group and the control group （ P 〈 0.05 ）. DPOAE amplitude and the provocation rate of the experimental group decreased significantly （ P 〈 0.05 ）, when compared with those of the control group. With the extension of noise exposure, DPOAE provocation rate for the ship crew decreased （P 〈 0.05 ）. DPOAE amplitude and the provocation rate of the normal hearing level group also decreased more significantly than those of the control group （ P 〈 0. 05 ）. Conclusions Pure-tone hearing threshold for the ship crew with early noiseinduced hearing damage might be normal. DPOAE could be applied to early diagnosis and appraisal of early noise-induced hearing damage.

关 键 词：畸变产物耳声发射 纯音测听 船员 噪声性耳聋 

分 类 号：R686[医药卫生—骨科学]