Low-level otoacoustic emissions may predict susceptibility to noise-induced hearing loss

2006 ◽  
Vol 120 (1) ◽  
pp. 280-296 ◽  
Author(s):  
Judi A. Lapsley Miller ◽  
Lynne Marshall ◽  
Laurie M. Heller ◽  
Linda M. Hughes
Keyword(s):  
Hearing Loss ◽  
Otoacoustic Emissions ◽  
Noise Induced Hearing Loss ◽  
Low Level ◽  
Susceptibility To Noise

Otoacoustic Emissions in Early Noise-Induced Hearing Loss

2007 ◽  
Vol 28 (6) ◽  
pp. 745-752 ◽  
Author(s):  
Avi Shupak ◽  
Dror Tal ◽  
Zohara Sharoni ◽  
May Oren ◽  
Avi Ravid ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Otoacoustic Emissions ◽  
Noise Induced Hearing Loss

Field Monitoring of Otoacoustic Emissions During Noise Exposure: Pilot Study in Controlled Environment

2017 ◽  
Vol 26 (3S) ◽  
pp. 352-368 ◽  
Author(s):  
Vincent Nadon ◽  
Annelies Bockstael ◽  
Dick Botteldooren ◽  
Jérémie Voix
Keyword(s):  
Hearing Loss ◽  
Pilot Study ◽  
Otoacoustic Emissions ◽  
Ambient Noise ◽  
Noise Exposure ◽  
High Temporal Resolution ◽  
Noise Induced Hearing Loss ◽  
Conservation Programs ◽  
Hearing Conservation ◽  
Hearing Status

Purpose In spite of all the efforts to implement workplace hearing conservation programs, noise-induced hearing loss remains the leading cause of disability for North American workers. Nonetheless, an individual's susceptibility to noise-induced hearing loss can be estimated by monitoring changes in hearing status in relation to the level of ambient noise exposure. The purpose of this study was to validate an approach that could improve workplace hearing conservation practices. The approach was developed using a portable and robust system designed for noisy environments and consisted of taking continuous measurements with high temporal resolution of the health status of the inner ear using otoacoustic emissions (OAEs). Method A pilot study was conducted in a laboratory, exposing human subjects to industrial noise recordings at realistic levels. In parallel, OAEs were measured periodically using the designed OAE system as well as with a commercially available OAE system, used as a reference. Results Variations in OAE levels were analyzed and discussed along with the limitations of the reference and designed systems. Conclusions This study demonstrates that the monitoring of an individual's OAEs could be useful in monitoring temporary changes in hearing status induced by exposure to ambient noise and could be considered as a new tool for effective hearing conservation programs in the workplace.

scholarly journals Genome-Wide Association Study Identifies Nox3 as a Critical Gene for Susceptibility to Noise-Induced Hearing Loss

PLoS Genetics ◽  
2015 ◽  
Vol 11 (4) ◽  
pp. e1005094 ◽  
Author(s):  
Joel Lavinsky ◽  
Amanda L. Crow ◽  
Calvin Pan ◽  
Juemei Wang ◽  
Ksenia A. Aaron ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Association Study ◽  
Genome Wide Association Study ◽  
Genome Wide Association ◽  
Noise Induced Hearing Loss ◽  
Genome Wide ◽  
Susceptibility To Noise

Individual Susceptibility to Noise-Induced Hearing loss

1993 ◽  
Vol 14 (3) ◽  
pp. 152-168 ◽  
Author(s):  
Donald Henderson ◽  
Malini Subramaniam ◽  
Flint A. Boettcher
Keyword(s):  
Hearing Loss ◽  
Noise Induced Hearing Loss ◽  
Individual Susceptibility ◽  
Susceptibility To Noise

scholarly journals Risk Assessment of Recreational Noise–Induced Hearing Loss from Exposure through a Personal Audio System—iPod Touch

2019 ◽  
Vol 30 (07) ◽  
pp. 619-633 ◽  
Author(s):  
Kamakshi V. Gopal ◽  
Liana E. Mills ◽  
Bryce S. Phillips ◽  
Rajesh Nandy
Keyword(s):  
Hearing Loss ◽  
Otoacoustic Emissions ◽  
Pure Tone ◽  
Risk Indicator ◽  
Noise Induced Hearing Loss ◽  
Ipod Touch ◽  
Distortion Product ◽  
Before And After ◽  
Within Subjects ◽  
Loud Music

AbstractRecreational noise–induced hearing loss (RNIHL) is a major health issue and presents a huge economic burden on society. Exposure to loud music is not considered hazardous in our society because music is thought to be a source of relaxation and entertainment. However, there is evidence that regardless of the sound source, frequent exposure to loud music, including through personal audio systems (PAS), can lead to hearing loss, tinnitus, difficulty processing speech, and increased susceptibility to age-related hearing loss.Several studies have documented temporary threshold shifts (TTS) (a risk indicator of future permanent impairment) in subjects that listen to loud music through their PAS. However, there is not enough information regarding volume settings that may be considered to be safe. As a primary step toward quantifying the risk of RNIHL through PAS, we assessed changes in auditory test measures before and after exposure to music through the popular iPod Touch device set at various volume levels.This project design incorporated aspects of both between- and within-subjects and used repeated measures to analyze individual groups.A total of 40 adults, aged 18–31 years with normal hearing were recruited and randomly distributed to four groups. Each group consisted of five males and five females.Subjects underwent two rounds of testing (pre- and postmusic exposure), with a 30-min interval, where they listened to a playlist consisting of popular songs through an iPod at 100%, 75%, 50%, or 0% volume (no music). Based on our analysis on the Knowles Electronic Manikin for Acoustic Research, with a standardized 711 coupler, it was determined that listening to the playlist for 30 min through standard earbuds resulted in an average level of 97.0 dBC at 100% volume, 83.3 dBC at 75% volume, and 65.6 dBC at 50% volume. Pure-tone thresholds from 500–8000 Hz, extended high-frequency pure tones between 9–12.5 kHz, and distortion product otoacoustic emissions (DPOAE) were obtained before and after the 30-min music exposure. Analysis of variance (ANOVA) was performed with two between-subjects factors (volume and gender) and one within-subjects factor (frequency). Change (shift) in auditory test measures was used as the outcome for the ANOVA.Results indicated significant worsening of pure-tone thresholds following music exposure only in the group that was exposed to 100% volume at the following frequencies: 2, 3, 4, 6 and 8 kHz. DPOAEs showed significant decrease at 2000 and 2822 Hz, also only for the 100% volume condition. No significant changes were found between pre- and postmusic exposure measures in groups exposed to 75%, 50%, or 0% volume conditions. Follow-up evaluations conducted a week later indicated that pure-tone thresholds had returned to the premusic exposure levels.These results provide quantifiable information regarding safe volume control settings on the iPod Touch with standard earbuds. Listening to music using the iPod Touch at 100% volume setting for as little as 30 min leads to TTS and worsening of otoacoustic emissions, a risk for permanent auditory damage.

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