摘要
目的探讨噪声性听力损失的声导抗特征，为噪声性听力损失的诊断提供客观依据。方法选取70例（140耳）不同程度听力损失的噪声作业工人为观察对象（噪声组），20例（40耳）非接触噪声的听力正常人为对照组，分剐对双耳进行声导抗测试，将所得数据用SPSS13．0软件进行统计处理。结果噪声组与对照组的镫骨肌声反射引出率各频率间比较，差异均有显著性（P〈0．05），尤以4000Hz最为明显（P〈0．001）；不同程度听力损失的镫骨肌声反射引出率比较，听力损失Ⅴ级者500～2000Hz引出率与其他各组比较差异均有显著性（P〈0．05），而4000Hz引出率组间比较差异无显著性（P〉0．05）。结论噪声性听力损失的镫骨肌声反射引出率明显下降；听力损失越严重，镫骨肌声反射的引出率越低，临床可以将镫骨肌声反射作为噪声性听力损失诊断的一项重要指标。
Objective To investigate the characteristic of impedance audiometry in noise-induced hearing loss and to offer objective evidence for diagnosis. Methods The impedance audiometry was carried out in 70 noise exposure workers with hearing loss（ 140 ears, the study group）and 20 non-noise exposure persons with normal heating（ 40 ears, the control group）. The data investigated was analyzed with SPSS 13.0 software by x^2 test. Results Compared with the control group, the elicitation of acoustic stapedial reflex was much lower（ P 〈 0. 05 ） in the study group. Significant difference of acoustic stapedial reflex in 500- 2 000 Hz was existed between the class Vand other classes of hearing loss,but there were no significant differences among groups in 4 000 Hz. Conclusion The rate of acoustic stapedial reflex in the workers with noise-induced heating loss is evidently declining with the heating loss level. Acoustic stapedial reflex may be an important indicator in diagnosis of noise-induced heating loss.
出处
《中国职业医学》
CAS
北大核心
2006年第4期278-279,共2页
China Occupational Medicine
关键词
声导抗
镫骨肌声反射
噪声性听力损失
Acoustic impedance audiometry
Acoustic-stapedius reflex
Noise-induced hearing loss
