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Assessment of otolith function using vestibular evoked myogenic potential in women during pregnancy / Avaliação da função otolítica através do potencial evocado miogênico vestibular em mulheres durante a gravidez
Bhavana, G.; Kumar, Kaushlendra; Anupriya, E..
  • Bhavana, G.; Manipal Academy of Higher Education. Kasturba Medical College. Department of Audiology and Speech-Language Pathology. Mangalore. IN
  • Kumar, Kaushlendra; Manipal Academy of Higher Education. Kasturba Medical College. Department of Audiology and Speech-Language Pathology. Mangalore. IN
  • Anupriya, E.; Manipal Academy of Higher Education. Kasturba Medical College. Department of Audiology and Speech-Language Pathology. Mangalore. IN
Braz. j. otorhinolaryngol. (Impr.) ; 88(4): 584-588, July-Aug. 2022. graf
Article in English | LILACS-Express | LILACS | ID: biblio-1394147
ABSTRACT
Abstract

Introduction:

More than 50% of pregnant women experience dizziness frequently in the first two gestational trimesters. During pregnancy, the changes in the metabolism of hormones are responsible for the ovarian cycle resulting in either peripheral or central vestibular alterations. The need for the study is to focus on the effect of changes during pregnancy on the vestibular evoked myogenic potential, an electrophysiological measure that investigates functions of the otolith structures.

Objectives:

The aim is to investigate the vestibular evoked myogenic potential responses during the first trimester of pregnancy.

Methods:

A total of 17 pregnant women and 17 non-pregnant women with age matched took part in this study. The cervical vestibular evoked myogenic potential were recorded from the ipsilateral sternocleridomastoid muscle and the ocular vestibular evoked myogenic potential were recorded from contralateral extraocular muscle in both groups.

Results:

Peak to peak amplitude of cervical vestibular evoked myogenic potential and ocular vestibular evoked myogenic potential was found to be significantly reduced in the responses obtained from first-trimester pregnant women when compared to that of non-pregnant women.

Conclusions:

Vestibular evoked myogenic potential tests exhibits a clinically significant reduced peak to peak amplitude in the first trimester of pregnancy, which indicates dysfunction in the otolith reflex pathway.
RESUMO
Resumo

Introdução:

Mais de 50% das mulheres grávidas apresentam tonturas frequentes nos primeiros dois trimestres da gravidez. Durante a gestação, as mudanças no metabolismo dos hormônios são responsáveis pelo ciclo ovariano, resultam em alterações vestibulares periféricas ou centrais. A necessidade do estudo é enfocar o efeito das mudanças durante a gravidez sobre o potencial evocado miogênico vestibular, uma medida eletrofisiológica que investiga as funções das estruturas otolíticas.

Objetivo:

Investigar as respostas do potencial evocado miogênico vestibular no primeiro trimestre da gravidez.

Método:

Participaram deste estudo 17 mulheres grávidas e 17 não grávidas com idades pareadas. O potencial evocado miogênico vestibular cervical foi registrado a partir do músculo esternocleidomastóideo ipsilateral e o potencial evocado miogênico vestibular ocular foi registrado a partir do músculo extraocular contralateral em ambos os grupos.

Resultados:

A amplitude pico a pico do potencial evocado miogênico vestibular cervical e do potencial evocado miogênico vestibular ocular estava significativamente reduzida nas respostas obtidas de mulheres grávidas no primeiro trimestre de gestação quando comparadas a de mulheres não grávidas.

Conclusão:

Os testes de potencial evocado miogênico vestibular mostram uma redução clinicamente significativa na amplitude pico a pico no primeiro trimestre da gravidez, o que indica disfunção na via otolítica reflexa.


Full text: Available Index: LILACS (Americas) Language: English Journal: Braz. j. otorhinolaryngol. (Impr.) Journal subject: Otolaryngology Year: 2022 Type: Article Affiliation country: India Institution/Affiliation country: Manipal Academy of Higher Education/IN

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Full text: Available Index: LILACS (Americas) Language: English Journal: Braz. j. otorhinolaryngol. (Impr.) Journal subject: Otolaryngology Year: 2022 Type: Article Affiliation country: India Institution/Affiliation country: Manipal Academy of Higher Education/IN