Transient evoked otoacoustic emissions as screening for hearing losses at the school for military training
Transient evoked otoacoustic emissions as screening for hearing losses at the school for military training
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DOI：
10.3109/01050399609047559
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发表时间：
1996-01-01
期刊：
影响因子：
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通讯作者：
Mair, IWS
中科院分区：
文献类型：
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作者：
Engdahl, B;Woxen, O;Mair, IWS
本研究旨在探讨瞬态诱发耳声发射（teoae）作为一种筛查服兵役新兵听力损失的方法的适用性。对95名男性新兵进行teoae、鼓室测听和纯音测听。61名新兵在2个月的枪声暴露后接受了测试，以记录耳蜗功能的永久性变化。纯音听力学筛查显示，听力损失的患病率出乎意料地高，可能是由于技术原因。使用服务结束时或由耳鼻喉科专家获得的较低阈值对阈值进行校正。用决策理论确定了在频带上分析的teoae识别正常耳和受损耳的准确性。听力障碍定义为平均听力阈值大于或等于三个相邻频率的平均30 dBHL。在中频得到了足够的精度。该技术需要进一步改进，才能被认为适用于检测低频和高频的听力损失。teoae测量速度更快，比纯音测听更客观。训练结束后，TEOAE水平略有下降。teoae具有高度可重复性，并且在检测新兵正常情况下耳蜗功能的微小变化方面比纯音听力学具有更高的灵敏度。
The present study was designed to investigate the applicability of transient evoked otoacoustic emissions (TEOAEs) as a method of screening for hearing losses among recruits attending obligatory military service. TEOAEs, tympanometry and pure-tone audiometry were recorded in 95 male recruits. Sixty-one recruits were tested after a 2-month period of gunfire exposure in order to document any permanent change in cochlear function. Screening by pure-tone audiometry showed an unexpectedly high prevalence of hearing losses > 20dBHL, probably due to technical reasons. Thresholds were corrected using lower thresholds obtained at the end of service or by ENT specialists. The accuracy with which normal and impaired ears could be identified with TEOAEs analysed in frequency bands was determined by decision theory. Impairment was defined as mean hearing thresholds greater than or equal to 30 dBHL averaged from three neighbouring frequencies. Adequate accuracy was obtained in the middle frequencies. Further improvement of the technique is needed before it can be deemed suitable for detecting hearing losses at low and high frequencies. TEOAEs are quicker to measure and offer greater objectivity than pure-tone audiometry. A small decrease in TEOAE level was found after the training period. The TEOAEs were highly repeatable and had a higher sensitivity than pure-tone audiometry to detection of small changes in cochlear function under conditions normally found when testing recruits.