噪声暴露工人的畸变产物耳声发射与扩展高频听力测定研究

[Study on distortion product otoacoustic emissions and expanded high frequency audiometry in noise exposure workers].

作者信息

Han Jun, Li Fengrong, Zhao Cuixia, Zhang Zhiyong, Ni Daofeng

机构信息

Department of Otolaryngology, Peking Union Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100730.

出版信息

Lin Chuang Er Bi Yan Hou Ke Za Zhi. 2003 Jan;17(1):16-9.

PMID:12725180

Abstract

OBJECTIVE

To analyse the relationship of distortion product otoacoustic emissions(DPOAE), conventional pure tone audiometry and expanded high frequency audiometry, and discuss the originated mechanism of DPOAE and value in early diagnosis and detection noise-induced deafness.

METHOD

DPOAE, conventional pure tone audiometry and expanded high frequency audiometry were performed in 42 young adults with normal hearing of control group and 20 noise exposure workers of test group. DPOAE amplitudes, conventional pure tone hearing thresholds and expanded high frequency hearing thresholds were compared.

RESULT

In noise exposure workers against young adults with normal hearing, the pure tone hearing thresholds at 6.0 kHz and expanded high frequency area declined significantly(P < 0.05), DPOAE amplitudes at frequency from 4.0 to 6.0 kHz and 11.2 kHz declined significantly too(P < 0.05), but there existed no significantly difference at frequency from 12.5 to 16.0 kHz between the two groups(P > 0.05).

CONCLUSION

DPOAE is potential implement to early diagnose and detect noise-induced deafness. It seems likely that the origination of DPOAE not limited to the outer hair cell in corresponding cochlear area. The originated area and mechanism of DPOAE should be solved by further studies.

摘要