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Contribution of audiovestibular tests to the topographic diagnosis of sudden deafness
Introduction: Sudden hearing loss (SHL) is an ENT emergency defined as sensorineural hearing loss (SNHL) ≥ 30 dB HL affecting at least 3 consecutive tonal frequencies, showing a sudden onset, and occurring within 3 days. In cases of SHL, a detailed investigation should be performed in order to deter...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Thieme Publicações Ltda
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4423244/ https://www.ncbi.nlm.nih.gov/pubmed/25992027 http://dx.doi.org/10.7162/S1809-977720130003000011 |
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author | Oiticica, Jeanne Bittar, Roseli Saraiva Moreira Castro, Claudio Campi de Grasel, Signe Pereira, Larissa Vilela Bastos, Sandra Lira Ramos, Alice Carolina Mataruco Beck, Roberto |
author_facet | Oiticica, Jeanne Bittar, Roseli Saraiva Moreira Castro, Claudio Campi de Grasel, Signe Pereira, Larissa Vilela Bastos, Sandra Lira Ramos, Alice Carolina Mataruco Beck, Roberto |
author_sort | Oiticica, Jeanne |
collection | PubMed |
description | Introduction: Sudden hearing loss (SHL) is an ENT emergency defined as sensorineural hearing loss (SNHL) ≥ 30 dB HL affecting at least 3 consecutive tonal frequencies, showing a sudden onset, and occurring within 3 days. In cases of SHL, a detailed investigation should be performed in order to determine the etiology and provide the best treatment. Otoacoustic emission (OAE) analysis, electronystagmography (ENG), bithermal caloric test (BCT), and vestibular evoked myogenic potential (VEMP) assessments may be used in addition to a number of auxiliary methods to determine the topographic diagnosis. Objective To evaluate the contribution of OAE analysis, BCT, VEMP assessment, and magnetic resonance imaging (MRI) to the topographic diagnosis of SHL. Method Cross-sectional and retrospective studies of 21 patients with SHL, as defined above, were performed. The patients underwent the following exams: audiometry, tympanometry, OAE analysis, BCT, VEMP assessment, and MRI. Sex, affected side, degree of hearing loss, and cochleovestibular test results were described and correlated with MRI findings. Student's t-test was used for analysis of qualitative variables (p < 0.05). Results The mean age of the 21 patients assessed was 52.5 ± 15.3 years; 13 (61.9%) were women and 8 (38.1%) were men. Most (55%) had severe hearing loss. MRI changes were found in 20% of the cases. When the audiovestibular test results were added to the MRI findings, the topographic SHL diagnosis rate increased from 20% to 45%. Conclusion Only combined analysis via several examinations provides a precise topographic diagnosis. Isolated data do not provide sufficient evidence to establish the extent of involvement and, hence, a possible etiology. |
format | Online Article Text |
id | pubmed-4423244 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Thieme Publicações Ltda |
record_format | MEDLINE/PubMed |
spelling | pubmed-44232442015-05-19 Contribution of audiovestibular tests to the topographic diagnosis of sudden deafness Oiticica, Jeanne Bittar, Roseli Saraiva Moreira Castro, Claudio Campi de Grasel, Signe Pereira, Larissa Vilela Bastos, Sandra Lira Ramos, Alice Carolina Mataruco Beck, Roberto Int Arch Otorhinolaryngol Article Introduction: Sudden hearing loss (SHL) is an ENT emergency defined as sensorineural hearing loss (SNHL) ≥ 30 dB HL affecting at least 3 consecutive tonal frequencies, showing a sudden onset, and occurring within 3 days. In cases of SHL, a detailed investigation should be performed in order to determine the etiology and provide the best treatment. Otoacoustic emission (OAE) analysis, electronystagmography (ENG), bithermal caloric test (BCT), and vestibular evoked myogenic potential (VEMP) assessments may be used in addition to a number of auxiliary methods to determine the topographic diagnosis. Objective To evaluate the contribution of OAE analysis, BCT, VEMP assessment, and magnetic resonance imaging (MRI) to the topographic diagnosis of SHL. Method Cross-sectional and retrospective studies of 21 patients with SHL, as defined above, were performed. The patients underwent the following exams: audiometry, tympanometry, OAE analysis, BCT, VEMP assessment, and MRI. Sex, affected side, degree of hearing loss, and cochleovestibular test results were described and correlated with MRI findings. Student's t-test was used for analysis of qualitative variables (p < 0.05). Results The mean age of the 21 patients assessed was 52.5 ± 15.3 years; 13 (61.9%) were women and 8 (38.1%) were men. Most (55%) had severe hearing loss. MRI changes were found in 20% of the cases. When the audiovestibular test results were added to the MRI findings, the topographic SHL diagnosis rate increased from 20% to 45%. Conclusion Only combined analysis via several examinations provides a precise topographic diagnosis. Isolated data do not provide sufficient evidence to establish the extent of involvement and, hence, a possible etiology. Thieme Publicações Ltda 2013-07 /pmc/articles/PMC4423244/ /pubmed/25992027 http://dx.doi.org/10.7162/S1809-977720130003000011 Text en © Thieme Medical Publishers |
spellingShingle | Article Oiticica, Jeanne Bittar, Roseli Saraiva Moreira Castro, Claudio Campi de Grasel, Signe Pereira, Larissa Vilela Bastos, Sandra Lira Ramos, Alice Carolina Mataruco Beck, Roberto Contribution of audiovestibular tests to the topographic diagnosis of sudden deafness |
title | Contribution of audiovestibular tests to the topographic diagnosis of sudden deafness |
title_full | Contribution of audiovestibular tests to the topographic diagnosis of sudden deafness |
title_fullStr | Contribution of audiovestibular tests to the topographic diagnosis of sudden deafness |
title_full_unstemmed | Contribution of audiovestibular tests to the topographic diagnosis of sudden deafness |
title_short | Contribution of audiovestibular tests to the topographic diagnosis of sudden deafness |
title_sort | contribution of audiovestibular tests to the topographic diagnosis of sudden deafness |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4423244/ https://www.ncbi.nlm.nih.gov/pubmed/25992027 http://dx.doi.org/10.7162/S1809-977720130003000011 |
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