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Evaluation of Internal Auditory Canal Structures in Tinnitus of Unknown Origin

OBJECTIVES: The aim of the present study was to evaluate the internal auditory canal (IAC) and the nerves inside it to define possible structural differences in cases with subjective tinnitus of unknown origin. METHODS: Cases applying to the ear, nose and throat department with the complaint of tinn...

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Autores principales: Polat, Cahit, Baykara, Murat, Ergen, Burhan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Korean Society of Otorhinolaryngology-Head and Neck Surgery 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4135149/
https://www.ncbi.nlm.nih.gov/pubmed/25177429
http://dx.doi.org/10.3342/ceo.2014.7.3.160
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author Polat, Cahit
Baykara, Murat
Ergen, Burhan
author_facet Polat, Cahit
Baykara, Murat
Ergen, Burhan
author_sort Polat, Cahit
collection PubMed
description OBJECTIVES: The aim of the present study was to evaluate the internal auditory canal (IAC) and the nerves inside it to define possible structural differences in cases with subjective tinnitus of unknown origin. METHODS: Cases applying to the ear, nose and throat department with the complaint of tinnitus with unknown origin and having normal physical examination and test results were included in the study (n=78). Patients admitted to the radiology clinic for routine cranial magnetic resonance imaging (MRI) and whose MRI findings revealed no pathologies were enrolled as the control group (n=79). Data for the control group were obtained from the radiology department and informed consent was obtained from all the patients. Diameters of the IAC and the nerves inside it were measured through enhanced images obtained by routine temporal bone MRIs in all cases. Statistical evaluations were performed using Student t-test and statistical significance was defined as P<0.05. RESULTS: Measurements of IAC diameters revealed statistically significant differences between the controls and the tinnitus group (P<0.05). Regarding the diameters of the cochlear nerve, facial nerve, inferior vestibular nerve, superior vestibular nerve, and total vestibular nerve, no statistically significant difference was found between the controls and the tinnitus group. CONCLUSION: Narrowed IAC has to be assessed as an etiological factor in cases with subjective tinnitus of unknown origin.
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spelling pubmed-41351492014-09-01 Evaluation of Internal Auditory Canal Structures in Tinnitus of Unknown Origin Polat, Cahit Baykara, Murat Ergen, Burhan Clin Exp Otorhinolaryngol Original Article OBJECTIVES: The aim of the present study was to evaluate the internal auditory canal (IAC) and the nerves inside it to define possible structural differences in cases with subjective tinnitus of unknown origin. METHODS: Cases applying to the ear, nose and throat department with the complaint of tinnitus with unknown origin and having normal physical examination and test results were included in the study (n=78). Patients admitted to the radiology clinic for routine cranial magnetic resonance imaging (MRI) and whose MRI findings revealed no pathologies were enrolled as the control group (n=79). Data for the control group were obtained from the radiology department and informed consent was obtained from all the patients. Diameters of the IAC and the nerves inside it were measured through enhanced images obtained by routine temporal bone MRIs in all cases. Statistical evaluations were performed using Student t-test and statistical significance was defined as P<0.05. RESULTS: Measurements of IAC diameters revealed statistically significant differences between the controls and the tinnitus group (P<0.05). Regarding the diameters of the cochlear nerve, facial nerve, inferior vestibular nerve, superior vestibular nerve, and total vestibular nerve, no statistically significant difference was found between the controls and the tinnitus group. CONCLUSION: Narrowed IAC has to be assessed as an etiological factor in cases with subjective tinnitus of unknown origin. Korean Society of Otorhinolaryngology-Head and Neck Surgery 2014-09 2014-08-01 /pmc/articles/PMC4135149/ /pubmed/25177429 http://dx.doi.org/10.3342/ceo.2014.7.3.160 Text en Copyright © 2014 by Korean Society of Otorhinolaryngology-Head and Neck Surgery. http://creativecommons.org/licenses/by-nc/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Polat, Cahit
Baykara, Murat
Ergen, Burhan
Evaluation of Internal Auditory Canal Structures in Tinnitus of Unknown Origin
title Evaluation of Internal Auditory Canal Structures in Tinnitus of Unknown Origin
title_full Evaluation of Internal Auditory Canal Structures in Tinnitus of Unknown Origin
title_fullStr Evaluation of Internal Auditory Canal Structures in Tinnitus of Unknown Origin
title_full_unstemmed Evaluation of Internal Auditory Canal Structures in Tinnitus of Unknown Origin
title_short Evaluation of Internal Auditory Canal Structures in Tinnitus of Unknown Origin
title_sort evaluation of internal auditory canal structures in tinnitus of unknown origin
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4135149/
https://www.ncbi.nlm.nih.gov/pubmed/25177429
http://dx.doi.org/10.3342/ceo.2014.7.3.160
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