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Contralateral Ear Occlusion for Improving the Reliability of Otoacoustic Emission Screening Tests

Newborn hearing screening is an established healthcare standard in many countries and testing is feasible using otoacoustic emission (OAE) recording. It is well documented that OAEs can be suppressed by acoustic stimulation of the ear contralateral to the test ear. In clinical otoacoustic emission t...

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Autores principales: Papsin, Emily, Harrison, Adrienne L., Carraro, Mattia, Harrison, Robert V.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3941788/
https://www.ncbi.nlm.nih.gov/pubmed/24672553
http://dx.doi.org/10.1155/2014/248187
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author Papsin, Emily
Harrison, Adrienne L.
Carraro, Mattia
Harrison, Robert V.
author_facet Papsin, Emily
Harrison, Adrienne L.
Carraro, Mattia
Harrison, Robert V.
author_sort Papsin, Emily
collection PubMed
description Newborn hearing screening is an established healthcare standard in many countries and testing is feasible using otoacoustic emission (OAE) recording. It is well documented that OAEs can be suppressed by acoustic stimulation of the ear contralateral to the test ear. In clinical otoacoustic emission testing carried out in a sound attenuating booth, ambient noise levels are low such that the efferent system is not activated. However in newborn hearing screening, OAEs are often recorded in hospital or clinic environments, where ambient noise levels can be 60–70 dB SPL. Thus, results in the test ear can be influenced by ambient noise stimulating the opposite ear. Surprisingly, in hearing screening protocols there are no recommendations for avoiding contralateral suppression, that is, protecting the opposite ear from noise by blocking the ear canal. In the present study we have compared transient evoked and distortion product OAEs measured with and without contralateral ear plugging, in environmental settings with ambient noise levels <25 dB SPL, 45 dB SPL, and 55 dB SPL. We found out that without contralateral ear occlusion, ambient noise levels above 55 dB SPL can significantly attenuate OAE signals. We strongly suggest contralateral ear occlusion in OAE based hearing screening in noisy environments.
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spelling pubmed-39417882014-03-26 Contralateral Ear Occlusion for Improving the Reliability of Otoacoustic Emission Screening Tests Papsin, Emily Harrison, Adrienne L. Carraro, Mattia Harrison, Robert V. Int J Otolaryngol Research Article Newborn hearing screening is an established healthcare standard in many countries and testing is feasible using otoacoustic emission (OAE) recording. It is well documented that OAEs can be suppressed by acoustic stimulation of the ear contralateral to the test ear. In clinical otoacoustic emission testing carried out in a sound attenuating booth, ambient noise levels are low such that the efferent system is not activated. However in newborn hearing screening, OAEs are often recorded in hospital or clinic environments, where ambient noise levels can be 60–70 dB SPL. Thus, results in the test ear can be influenced by ambient noise stimulating the opposite ear. Surprisingly, in hearing screening protocols there are no recommendations for avoiding contralateral suppression, that is, protecting the opposite ear from noise by blocking the ear canal. In the present study we have compared transient evoked and distortion product OAEs measured with and without contralateral ear plugging, in environmental settings with ambient noise levels <25 dB SPL, 45 dB SPL, and 55 dB SPL. We found out that without contralateral ear occlusion, ambient noise levels above 55 dB SPL can significantly attenuate OAE signals. We strongly suggest contralateral ear occlusion in OAE based hearing screening in noisy environments. Hindawi Publishing Corporation 2014 2014-01-12 /pmc/articles/PMC3941788/ /pubmed/24672553 http://dx.doi.org/10.1155/2014/248187 Text en Copyright © 2014 Emily Papsin et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Papsin, Emily
Harrison, Adrienne L.
Carraro, Mattia
Harrison, Robert V.
Contralateral Ear Occlusion for Improving the Reliability of Otoacoustic Emission Screening Tests
title Contralateral Ear Occlusion for Improving the Reliability of Otoacoustic Emission Screening Tests
title_full Contralateral Ear Occlusion for Improving the Reliability of Otoacoustic Emission Screening Tests
title_fullStr Contralateral Ear Occlusion for Improving the Reliability of Otoacoustic Emission Screening Tests
title_full_unstemmed Contralateral Ear Occlusion for Improving the Reliability of Otoacoustic Emission Screening Tests
title_short Contralateral Ear Occlusion for Improving the Reliability of Otoacoustic Emission Screening Tests
title_sort contralateral ear occlusion for improving the reliability of otoacoustic emission screening tests
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3941788/
https://www.ncbi.nlm.nih.gov/pubmed/24672553
http://dx.doi.org/10.1155/2014/248187
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