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Exposure to Occupational Noise: Otoacoustic Emissions Test Alterations

Overview
Journal Braz J Otorhinolaryngol
Specialty Otorhinolaryngology
Date 2006 Nov 23
PMID 17119772
Citations 9
Authors
Frederico Prudente Marques
Everardo Andrade da Costa
Affiliations
Soon will be listed here.
Abstract

Unlabelled: Exposure to occupational noise may cause injuries to the inner ear, and the distortion product otoacoustic emissions (DPOAE) may identify initial auditory alterations, thus assisting NIHL early diagnosis.

Aim: The goal of this study was to evaluate DPOAE as a method to diagnose early physiopathological alterations caused by occupational noise exposure.

Study Design: Transversal.

Methods: 74 workers of the University of São Paulo, in the capital city of the State, participated in this investigation. They were divided in two age-matched groups and with tonal audiometric values within the acceptable limits: 37 were exposed to occupational noise and 37 were not exposed.

Results: Risk estimates (Odds Ratio) of absent DPOAE was 12 fold higher for the group exposed to occupational noise (CI 95% 3.1-45.9), in the frequencies of 3. 4 and 6 kHz.

Conclusion: DPOAE may be useful in the identification of physiopathological hearing alterations caused by exposure to occupational noise, even in individuals with tonal audiometric responses within acceptable limits.

Citing Articles

Is the Level of Noise in a School Environment be Harmful to the Hearing of Teachers?.

Novanta G, Garavelli S, Sampaio A Int Arch Otorhinolaryngol. 2020; 24(4):e503-e507.

PMID: 33101518 PMC: 7575397. DOI: 10.1055/s-0040-1702969.

Longitudinal evaluation of a hearing protector fit training program.

Assuncao C, Trabanco J, Gomes R, Moreira R, Samelli A Med Lav. 2019; 110(4):304-311.

PMID: 31475692 PMC: 7809996. DOI: 10.23749/mdl.v110i4.8214.

Prevalence of Hazardous Occupational Noise Exposure, Hearing Loss, and Hearing Protection Usage Among a Representative Sample of Working Canadians.

Feder K, Michaud D, McNamee J, Fitzpatrick E, Davies H, Leroux T J Occup Environ Med. 2017; 59(1):92-113.

PMID: 28045804 PMC: 5704673. DOI: 10.1097/JOM.0000000000000920.

Modeling signal-to-noise ratio of otoacoustic emissions in workers exposed to different industrial noise levels.

Nassiri P, Zare S, Monazzam M, Pourbakht A, Azam K, Golmohammadi T Noise Health. 2016; 18(85):391-398.

PMID: 27991472 PMC: 5227021. DOI: 10.4103/1463-1741.195808.

Workplace Activity in Health Professionals Exposed to Chemotherapy Drugs: An Otoneurological Perspective.

Fernandes N, Pelissari I, Cogo L, Santos Filha V Int Arch Otorhinolaryngol. 2016; 20(4):331-338.

PMID: 27746836 PMC: 5063725. DOI: 10.1055/s-0036-1572431.

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