[使用听力保护器的士兵射击后耳声发射测量的听阈移位分析]

[Analysis of hearing threshold shift measured by otoacoustic emissions in soldiers after shooting with use hearing protectors].

作者信息

Olszewski Jurek, Miłońiski Jarosław, Olszewski Sławomir

机构信息

Z Kliniki Otolaryngologii i Onkologii Laryngologicznej, Katedry Chirurgii Głowy i Szyi, Uniwersytetu Medycznego w Lodzi.

出版信息

Med Pr. 2006;57(2):109-14.

PMID:16871954

Abstract

BACKGROUND

The aim of the study was to assess the influence of short-term impulse noise on the size of temporary threshold shift in soldiers using hearing protectors during exposure.

MATERIAL AND METHODS

The study covered 80 subjects with normal tympanic membrane and thresholds measured by pure tone audiometry lower than 20 dB. There were two groups: I--composed of 40 soldiers protected during shooting and II--comprised 40 young males which did not shoot (controls). Transient evoked otoacoustic emissions were performed by an ILO 292 Echoport Otodynamics device 3-5 min before shooting and 2 min, 1, 2 and 3 h after shooting.

RESULTS

The results showed that post-exposure changes in soldiers who used ear-muffs were not significant.

CONCLUSION

The use of hearing protectors is strongly recommended because most of them seem to sufficiently attenuate impulse noise from firearms.

摘要

背景

本研究的目的是评估短期脉冲噪声对暴露期间使用听力保护器的士兵暂时性阈移大小的影响。

材料与方法

该研究涵盖了80名鼓膜正常且纯音听力测定阈值低于20 dB的受试者。分为两组：第一组由40名射击时佩戴防护装置的士兵组成，第二组由40名未射击的年轻男性（对照组）组成。在射击前3 - 5分钟以及射击后2分钟、1小时、2小时和3小时，使用ILO 292 Echoport耳动力学设备进行瞬态诱发耳声发射检测。