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Biomechanics of Third Window Syndrome
Third window syndrome describes a set of vestibular and auditory symptoms that arise when a pathological third mobile window is present in the bony labyrinth of the inner ear. The pathological mobile window (or windows) adds to the oval and round windows, disrupting normal auditory and vestibular fu...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2020
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7477384/ https://www.ncbi.nlm.nih.gov/pubmed/32982922 http://dx.doi.org/10.3389/fneur.2020.00891 |
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author | Iversen, Marta M. Rabbitt, Richard D. |
author_facet | Iversen, Marta M. Rabbitt, Richard D. |
author_sort | Iversen, Marta M. |
collection | PubMed |
description | Third window syndrome describes a set of vestibular and auditory symptoms that arise when a pathological third mobile window is present in the bony labyrinth of the inner ear. The pathological mobile window (or windows) adds to the oval and round windows, disrupting normal auditory and vestibular function by altering biomechanics of the inner ear. The most commonly occurring third window syndrome arises from superior semicircular canal dehiscence (SSCD), where a section of bone overlying the superior semicircular canal is absent or thinned (near-dehiscence). The presentation of SSCD syndrome is well characterized by clinical audiological and vestibular tests. In this review, we describe how the third compliant window introduced by a SSCD alters the biomechanics of the inner ear and thereby leads to vestibular and auditory symptoms. Understanding the biomechanical origins of SSCD further provides insight into other third window syndromes and the potential of restoring function or reducing symptoms through surgical repair. |
format | Online Article Text |
id | pubmed-7477384 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-74773842020-09-26 Biomechanics of Third Window Syndrome Iversen, Marta M. Rabbitt, Richard D. Front Neurol Neurology Third window syndrome describes a set of vestibular and auditory symptoms that arise when a pathological third mobile window is present in the bony labyrinth of the inner ear. The pathological mobile window (or windows) adds to the oval and round windows, disrupting normal auditory and vestibular function by altering biomechanics of the inner ear. The most commonly occurring third window syndrome arises from superior semicircular canal dehiscence (SSCD), where a section of bone overlying the superior semicircular canal is absent or thinned (near-dehiscence). The presentation of SSCD syndrome is well characterized by clinical audiological and vestibular tests. In this review, we describe how the third compliant window introduced by a SSCD alters the biomechanics of the inner ear and thereby leads to vestibular and auditory symptoms. Understanding the biomechanical origins of SSCD further provides insight into other third window syndromes and the potential of restoring function or reducing symptoms through surgical repair. Frontiers Media S.A. 2020-08-25 /pmc/articles/PMC7477384/ /pubmed/32982922 http://dx.doi.org/10.3389/fneur.2020.00891 Text en Copyright © 2020 Iversen and Rabbitt. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Neurology Iversen, Marta M. Rabbitt, Richard D. Biomechanics of Third Window Syndrome |
title | Biomechanics of Third Window Syndrome |
title_full | Biomechanics of Third Window Syndrome |
title_fullStr | Biomechanics of Third Window Syndrome |
title_full_unstemmed | Biomechanics of Third Window Syndrome |
title_short | Biomechanics of Third Window Syndrome |
title_sort | biomechanics of third window syndrome |
topic | Neurology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7477384/ https://www.ncbi.nlm.nih.gov/pubmed/32982922 http://dx.doi.org/10.3389/fneur.2020.00891 |
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