中华耳科学杂志（英文版）2008，Vol.3Issue(2)：108-112,5.
Detection of Early Noise-Induced Hearing Impairment in Pilots
Detection of Early Noise-Induced Hearing Impairment in Pilots
WANG En-tong 1GONG Wei-xi 1CHEN Wei 1MA Xiao-li 1XIA Hui 1CHEN Jun1
作者信息
- 1. Department of Otolaryngology-Head and Neck Surgery, Chinese PLA Air Force General Hospital, 30 Fucheng Road, Beiiing 100036, P.R.China
- 折叠
摘要
Abstract
Objective To detect early signs of noise-induced hearing loss(NIHL) in military pilots without hearing complaints. Methods Pure tone audiometry and acoustic reflex thresholds were tested in 36 military pilots (72 ears) with noise exposure history but no complaints of hearing loss. Conventional test frequencies (0.25-8 kHz) and extended high frequencies (EHF, 10 and 12.5 kHz) were included in audiometry. White noise and pure tones at 0.5, 1, 2, and 4 kHz were used for acoustic reflex tests. Twenty normal hearing subjects(40 ears) with no exposure to occupational noise were used as controls. Results Pure tone thresholds at all conventional frequencies and at EHFs were elevated in the pilots, with the maximum shift at 4 kHz, compared with controls (p < 0.01 ). The pilots also showed elevated ART to white noise and decreased differentials between white noise and pure tone ARTs (p< 0.01 ). Conclusion Early signs of NIHL are present in some symptom-free military pilots. High frequency hearing threshold shift, elevated white noise ART and decreased differential between white noise and pure tone ARTs may be objective indicators of early NIHL.关键词
Aviator/Hearing loss/High frequency audiometry/Acoustic reflex thresholdKey words
Aviator/Hearing loss/High frequency audiometry/Acoustic reflex threshold引用本文复制引用
WANG En-tong,GONG Wei-xi,CHEN Wei,MA Xiao-li,XIA Hui,CHEN Jun..Detection of Early Noise-Induced Hearing Impairment in Pilots[J].中华耳科学杂志（英文版）,2008,3(2):108-112,5.
