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Subjective visual vertical after treatment of benign paroxysmal positional vertigo()
INTRODUCTION: Otolith function can be studied by testing the subjective visual vertical, because the tilt of the vertical line beyond the normal range is a sign of vestibular dysfunction. Benign paroxysmal positional vertigo is a disorder of one or more labyrinthine semicircular canals caused by fra...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9449175/ https://www.ncbi.nlm.nih.gov/pubmed/27746123 http://dx.doi.org/10.1016/j.bjorl.2016.08.014 |
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author | Ferreira, Maristela Mian Ganança, Maurício Malavasi Caovilla, Heloisa Helena |
author_facet | Ferreira, Maristela Mian Ganança, Maurício Malavasi Caovilla, Heloisa Helena |
author_sort | Ferreira, Maristela Mian |
collection | PubMed |
description | INTRODUCTION: Otolith function can be studied by testing the subjective visual vertical, because the tilt of the vertical line beyond the normal range is a sign of vestibular dysfunction. Benign paroxysmal positional vertigo is a disorder of one or more labyrinthine semicircular canals caused by fractions of otoliths derived from the utricular macula. OBJECTIVE: To compare the subjective visual vertical with the bucket test before and immediately after the particle repositioning maneuver in patients with benign paroxysmal positional vertigo. METHODS: We evaluated 20 patients. The estimated position where a fluorescent line within a bucket reached the vertical position was measured before and immediately after the particle repositioning maneuver. Data were tabulated and statistically analyzed. RESULTS: Before repositioning maneuver, 9 patients (45.0%) had absolute values of the subjective visual vertical above the reference standard and 2 (10.0%) after the maneuver; the mean of the absolute values of the vertical deviation was significantly lower after the intervention (p < 0.001). CONCLUSION: There is a reduction of the deviations of the subjective visual vertical, evaluated by the bucket test, immediately after the particle repositioning maneuver in patients with benign paroxysmal positional vertigo. |
format | Online Article Text |
id | pubmed-9449175 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-94491752022-09-09 Subjective visual vertical after treatment of benign paroxysmal positional vertigo() Ferreira, Maristela Mian Ganança, Maurício Malavasi Caovilla, Heloisa Helena Braz J Otorhinolaryngol Original Article INTRODUCTION: Otolith function can be studied by testing the subjective visual vertical, because the tilt of the vertical line beyond the normal range is a sign of vestibular dysfunction. Benign paroxysmal positional vertigo is a disorder of one or more labyrinthine semicircular canals caused by fractions of otoliths derived from the utricular macula. OBJECTIVE: To compare the subjective visual vertical with the bucket test before and immediately after the particle repositioning maneuver in patients with benign paroxysmal positional vertigo. METHODS: We evaluated 20 patients. The estimated position where a fluorescent line within a bucket reached the vertical position was measured before and immediately after the particle repositioning maneuver. Data were tabulated and statistically analyzed. RESULTS: Before repositioning maneuver, 9 patients (45.0%) had absolute values of the subjective visual vertical above the reference standard and 2 (10.0%) after the maneuver; the mean of the absolute values of the vertical deviation was significantly lower after the intervention (p < 0.001). CONCLUSION: There is a reduction of the deviations of the subjective visual vertical, evaluated by the bucket test, immediately after the particle repositioning maneuver in patients with benign paroxysmal positional vertigo. Elsevier 2016-09-28 /pmc/articles/PMC9449175/ /pubmed/27746123 http://dx.doi.org/10.1016/j.bjorl.2016.08.014 Text en © 2016 Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial. Published by Elsevier Editora Ltda. https://creativecommons.org/licenses/by/4.0/This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Original Article Ferreira, Maristela Mian Ganança, Maurício Malavasi Caovilla, Heloisa Helena Subjective visual vertical after treatment of benign paroxysmal positional vertigo() |
title | Subjective visual vertical after treatment of benign paroxysmal positional vertigo() |
title_full | Subjective visual vertical after treatment of benign paroxysmal positional vertigo() |
title_fullStr | Subjective visual vertical after treatment of benign paroxysmal positional vertigo() |
title_full_unstemmed | Subjective visual vertical after treatment of benign paroxysmal positional vertigo() |
title_short | Subjective visual vertical after treatment of benign paroxysmal positional vertigo() |
title_sort | subjective visual vertical after treatment of benign paroxysmal positional vertigo() |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9449175/ https://www.ncbi.nlm.nih.gov/pubmed/27746123 http://dx.doi.org/10.1016/j.bjorl.2016.08.014 |
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