Silva Tatiana Rocha, de Resende Luciana Macedo, Santos Marco Aurélio Rocha
Universidade Federal de Minas Gerais (UFMG), Faculdade de Medicina, Programa de Pós-graduação em Ciências Fonoaudiológicas, Belo Horizonte, MG, Brazil.
Universidade Federal de Minas Gerais (UFMG), Faculdade de Medicina, Departamento de Fonoaudiologia, Belo Horizonte, MG, Brazil.
Braz J Otorhinolaryngol. 2017 May-Jun;83(3):330-340. doi: 10.1016/j.bjorl.2016.04.017. Epub 2016 May 31.
The vestibular evoked myogenic potential is a potential of mean latency that measures the muscle response to auditory stimulation. This potential can be generated from the contraction of the sternocleidomastoid muscle and also from the contraction of extraocular muscles in response to high-intensity sounds. This study presents a combined or simultaneous technique of cervical and ocular vestibular evoked myogenic potential in individuals with changes in the vestibular system, for use in otoneurologic diagnosis.
To characterize the records and analyze the results of combined cervical and ocular VEMP in individuals with vestibular hyporeflexia and in those with Ménière's disease.
The study included 120 subjects: 30 subjects with vestibular hyporeflexia, 30 with Ménière's disease, and 60 individuals with normal hearing. Data collection was performed by simultaneously recording the cervical and ocular vestibular evoked myogenic potential.
There were differences between the study groups (individuals with vestibular hyporeflexia and individuals with Ménière's disease) and the control group for most of wave parameters in combined cervical and ocular vestibular evoked myogenic potential. For cervical vestibular evoked myogenic potential, it was observed that the prolongation of latency of the P13 and N23 waves was the most frequent finding in the group with vestibular hyporeflexia and in the group with Ménière's disease. For ocular vestibular evoked myogenic potential, prolonged latency of N10 and P15 waves was the most frequent finding in the study groups.
Combined cervical and ocular vestibular evoked myogenic potential presented relevant results for individuals with vestibular hyporeflexia and for those with Ménière's disease. There were differences between the study groups and the control group for most of the wave parameters in combined cervical and ocular vestibular evoked myogenic potential.
前庭诱发肌源性电位是一种平均潜伏期电位，用于测量肌肉对听觉刺激的反应。这种电位可由胸锁乳突肌的收缩产生，也可由眼外肌对高强度声音的收缩产生。本研究提出了一种用于前庭系统改变个体的颈性和眼性前庭诱发肌源性电位的联合或同步技术，用于耳神经科诊断。
描述前庭反射减退个体和梅尼埃病个体的联合颈性和眼性前庭诱发肌源性电位记录并分析其结果。
该研究纳入了120名受试者：30名前庭反射减退受试者、30名梅尼埃病患者和60名听力正常个体。通过同时记录颈性和眼性前庭诱发肌源性电位进行数据收集。
在联合颈性和眼性前庭诱发肌源性电位的大多数波参数方面，研究组（前庭反射减退个体和梅尼埃病个体）与对照组之间存在差异。对于颈性前庭诱发肌源性电位，观察到P13和N23波潜伏期延长是前庭反射减退组和梅尼埃病组中最常见的发现。对于眼性前庭诱发肌源性电位，N10和P15波潜伏期延长是研究组中最常见的发现。
联合颈性和眼性前庭诱发肌源性电位对前庭反射减退个体和梅尼埃病个体呈现出相关结果。在联合颈性和眼性前庭诱发肌源性电位的大多数波参数方面，研究组与对照组之间存在差异。
