Comparison of the Minimum Plateau Width by Plateau and a New Method in People with Conductive Hearing Loss

BACKGROUND AND OBJECTIVES: In clinical masking, the plateau is a state in which the non-test ear (NTE) is completely masked by the noise and tone is heard only by the test ear (TE). At least 15 to 20 dB of plateau width is needed to obtain valid threshold. In the study, a part of plateau after initi...

Descripción completa

Detalles Bibliográficos
Autores principales: Sameni, Seyyed Jalal, Daneshi, Ahmad, Pourbakht, Akram, Tahaei, Aliakbar, Kamali, Mohammad
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Korean Audiological Society and Korean Otological Society 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6233935/
https://www.ncbi.nlm.nih.gov/pubmed/30016855
http://dx.doi.org/10.7874/jao.2018.00129
_version_ 1783370625236074496
author Sameni, Seyyed Jalal
Daneshi, Ahmad
Pourbakht, Akram
Tahaei, Aliakbar
Kamali, Mohammad
author_facet Sameni, Seyyed Jalal
Daneshi, Ahmad
Pourbakht, Akram
Tahaei, Aliakbar
Kamali, Mohammad
author_sort Sameni, Seyyed Jalal
collection PubMed
description BACKGROUND AND OBJECTIVES: In clinical masking, the plateau is a state in which the non-test ear (NTE) is completely masked by the noise and tone is heard only by the test ear (TE). At least 15 to 20 dB of plateau width is needed to obtain valid threshold. In the study, a part of plateau after initial masking level known as the minimum plateau width (mPW) was determined and compared by a new formula and the plateau searching method. SUBJECTS AND METHODS: Minimum plateau widths of air conduction were obtained in 29 participants with unilateral and 30 participants with bilateral conductive hearing loss (CHL) aged 20 to 45 years old by using step by step plateau method and mPW estimation by the formula between two points of masking diagram [mPW=(N(2)-N(1))-(T(2)-T(1))] and then the mPW of two methods was compared for each frequency. RESULTS: There was no significant difference between the minimum plateau width obtained by the plateau and formula methods for two given point of masking diagram in people with unilateral and bilateral CHL at octave frequencies from 500 Hz to 4,000 Hz. CONCLUSIONS: Threshold obtaining of TE by two tones for two noise levels delivered to the NTE is enough to estimate the mPW between these two noise points and it is not necessary that for clinicians to know the actual values of masking diagram components.
format Online
Article
Text
id pubmed-6233935
institution National Center for Biotechnology Information
language English
publishDate 2018
publisher The Korean Audiological Society and Korean Otological Society
record_format MEDLINE/PubMed
spelling pubmed-62339352018-11-16 Comparison of the Minimum Plateau Width by Plateau and a New Method in People with Conductive Hearing Loss Sameni, Seyyed Jalal Daneshi, Ahmad Pourbakht, Akram Tahaei, Aliakbar Kamali, Mohammad J Audiol Otol Original Article BACKGROUND AND OBJECTIVES: In clinical masking, the plateau is a state in which the non-test ear (NTE) is completely masked by the noise and tone is heard only by the test ear (TE). At least 15 to 20 dB of plateau width is needed to obtain valid threshold. In the study, a part of plateau after initial masking level known as the minimum plateau width (mPW) was determined and compared by a new formula and the plateau searching method. SUBJECTS AND METHODS: Minimum plateau widths of air conduction were obtained in 29 participants with unilateral and 30 participants with bilateral conductive hearing loss (CHL) aged 20 to 45 years old by using step by step plateau method and mPW estimation by the formula between two points of masking diagram [mPW=(N(2)-N(1))-(T(2)-T(1))] and then the mPW of two methods was compared for each frequency. RESULTS: There was no significant difference between the minimum plateau width obtained by the plateau and formula methods for two given point of masking diagram in people with unilateral and bilateral CHL at octave frequencies from 500 Hz to 4,000 Hz. CONCLUSIONS: Threshold obtaining of TE by two tones for two noise levels delivered to the NTE is enough to estimate the mPW between these two noise points and it is not necessary that for clinicians to know the actual values of masking diagram components. The Korean Audiological Society and Korean Otological Society 2018-10 2018-07-19 /pmc/articles/PMC6233935/ /pubmed/30016855 http://dx.doi.org/10.7874/jao.2018.00129 Text en Copyright © 2018 The Korean Audiological Society and Korean Otological Society This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Sameni, Seyyed Jalal
Daneshi, Ahmad
Pourbakht, Akram
Tahaei, Aliakbar
Kamali, Mohammad
Comparison of the Minimum Plateau Width by Plateau and a New Method in People with Conductive Hearing Loss
title Comparison of the Minimum Plateau Width by Plateau and a New Method in People with Conductive Hearing Loss
title_full Comparison of the Minimum Plateau Width by Plateau and a New Method in People with Conductive Hearing Loss
title_fullStr Comparison of the Minimum Plateau Width by Plateau and a New Method in People with Conductive Hearing Loss
title_full_unstemmed Comparison of the Minimum Plateau Width by Plateau and a New Method in People with Conductive Hearing Loss
title_short Comparison of the Minimum Plateau Width by Plateau and a New Method in People with Conductive Hearing Loss
title_sort comparison of the minimum plateau width by plateau and a new method in people with conductive hearing loss
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6233935/
https://www.ncbi.nlm.nih.gov/pubmed/30016855
http://dx.doi.org/10.7874/jao.2018.00129
work_keys_str_mv AT sameniseyyedjalal comparisonoftheminimumplateauwidthbyplateauandanewmethodinpeoplewithconductivehearingloss
AT daneshiahmad comparisonoftheminimumplateauwidthbyplateauandanewmethodinpeoplewithconductivehearingloss
AT pourbakhtakram comparisonoftheminimumplateauwidthbyplateauandanewmethodinpeoplewithconductivehearingloss
AT tahaeialiakbar comparisonoftheminimumplateauwidthbyplateauandanewmethodinpeoplewithconductivehearingloss
AT kamalimohammad comparisonoftheminimumplateauwidthbyplateauandanewmethodinpeoplewithconductivehearingloss