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The Association Between Precuneus Function and Residual Dizziness in Patients With Benign Paroxysmal Positional Vertigo

OBJECTIVES: The purpose of this study was to apply the amplitude of the low-frequency fluctuation (ALFF) method to investigate the spontaneous brain activity alterations in patients with residual dizziness (RD) after successful canalith repositioning manoeuvre for benign paroxysmal positional vertig...

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Autores principales: Fu, Wei, Bai, Ya, He, Feng, Wei, Dong, Wang, Yuanyuan, Shi, Ying, An, Xinyue, Han, Junliang, Wang, Xiaoming
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9039311/
https://www.ncbi.nlm.nih.gov/pubmed/35493847
http://dx.doi.org/10.3389/fneur.2022.828642
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author Fu, Wei
Bai, Ya
He, Feng
Wei, Dong
Wang, Yuanyuan
Shi, Ying
An, Xinyue
Han, Junliang
Wang, Xiaoming
author_facet Fu, Wei
Bai, Ya
He, Feng
Wei, Dong
Wang, Yuanyuan
Shi, Ying
An, Xinyue
Han, Junliang
Wang, Xiaoming
author_sort Fu, Wei
collection PubMed
description OBJECTIVES: The purpose of this study was to apply the amplitude of the low-frequency fluctuation (ALFF) method to investigate the spontaneous brain activity alterations in patients with residual dizziness (RD) after successful canalith repositioning manoeuvre for benign paroxysmal positional vertigo (BPPV). METHODS: All BPPV patients underwent visual vertigo analog scale (VVAS) evaluations and functional magnetic resonance imaging (fMRI). The ALFF method was used to assess the spontaneous brain activity. Screening of brain regions with significant changes in ALFF values was based on analysis of the whole brain. We further analyze the relationship between ALFF values of the altered regions and VVAS scores in BPPV patients with RD. RESULTS: Fifteen BPPV patients with RD and fifteen without RD were recruited in this study. In contrast to without RD, RD patients exhibited increased scores in VVAS tests (p < 0.001) and RD patients also showed significant ALFF decrease in the bilateral precuneus (left: 251 voxels; x = −10, y = −69, z = 51; peak t-value = −3.25; right: 170 voxels; x = 4, y = −59, z = 42; peak t-value = −3.43). Correlation analysis revealed that the mean ALFF z-values in the left precuneus displayed significant negative correlations with the VVAS scores(r = −0.44, p = 0.01). CONCLUSIONS: This study shows that RD is associated with left precuneus function as revealed by fMRI. It might provide useful information for explaining neural mechanisms in BPPV patients with RD.
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spelling pubmed-90393112022-04-27 The Association Between Precuneus Function and Residual Dizziness in Patients With Benign Paroxysmal Positional Vertigo Fu, Wei Bai, Ya He, Feng Wei, Dong Wang, Yuanyuan Shi, Ying An, Xinyue Han, Junliang Wang, Xiaoming Front Neurol Neurology OBJECTIVES: The purpose of this study was to apply the amplitude of the low-frequency fluctuation (ALFF) method to investigate the spontaneous brain activity alterations in patients with residual dizziness (RD) after successful canalith repositioning manoeuvre for benign paroxysmal positional vertigo (BPPV). METHODS: All BPPV patients underwent visual vertigo analog scale (VVAS) evaluations and functional magnetic resonance imaging (fMRI). The ALFF method was used to assess the spontaneous brain activity. Screening of brain regions with significant changes in ALFF values was based on analysis of the whole brain. We further analyze the relationship between ALFF values of the altered regions and VVAS scores in BPPV patients with RD. RESULTS: Fifteen BPPV patients with RD and fifteen without RD were recruited in this study. In contrast to without RD, RD patients exhibited increased scores in VVAS tests (p < 0.001) and RD patients also showed significant ALFF decrease in the bilateral precuneus (left: 251 voxels; x = −10, y = −69, z = 51; peak t-value = −3.25; right: 170 voxels; x = 4, y = −59, z = 42; peak t-value = −3.43). Correlation analysis revealed that the mean ALFF z-values in the left precuneus displayed significant negative correlations with the VVAS scores(r = −0.44, p = 0.01). CONCLUSIONS: This study shows that RD is associated with left precuneus function as revealed by fMRI. It might provide useful information for explaining neural mechanisms in BPPV patients with RD. Frontiers Media S.A. 2022-04-12 /pmc/articles/PMC9039311/ /pubmed/35493847 http://dx.doi.org/10.3389/fneur.2022.828642 Text en Copyright © 2022 Fu, Bai, He, Wei, Wang, Shi, An, Han and Wang. https://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
Fu, Wei
Bai, Ya
He, Feng
Wei, Dong
Wang, Yuanyuan
Shi, Ying
An, Xinyue
Han, Junliang
Wang, Xiaoming
The Association Between Precuneus Function and Residual Dizziness in Patients With Benign Paroxysmal Positional Vertigo
title The Association Between Precuneus Function and Residual Dizziness in Patients With Benign Paroxysmal Positional Vertigo
title_full The Association Between Precuneus Function and Residual Dizziness in Patients With Benign Paroxysmal Positional Vertigo
title_fullStr The Association Between Precuneus Function and Residual Dizziness in Patients With Benign Paroxysmal Positional Vertigo
title_full_unstemmed The Association Between Precuneus Function and Residual Dizziness in Patients With Benign Paroxysmal Positional Vertigo
title_short The Association Between Precuneus Function and Residual Dizziness in Patients With Benign Paroxysmal Positional Vertigo
title_sort association between precuneus function and residual dizziness in patients with benign paroxysmal positional vertigo
topic Neurology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9039311/
https://www.ncbi.nlm.nih.gov/pubmed/35493847
http://dx.doi.org/10.3389/fneur.2022.828642
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