Vestibular evoked myogenic potentials in multiple sclerosis patients

Versino, Maurizio; Colnaghi, Silvia; Callieco, R; Bergamaschi, Roberto; Romani, Alfredo; Cosi, V.

doi:10.1016/s1388-2457(02)00155-4

Cited by 95 publications

(83 citation statements)

References 17 publications

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“…Prolonged VEMPs could be due to demyelination from either of primary afferent axons at the root entry zone or secondary vestibulospinal tract axons rather than to lesions involving vestibular nucleus [47][48][49]. Measurement of VEMPs is therefore helpful in detecting subclinical vestibulospinal lesions in suspected multiple sclerosis [50].…”

Section: Central Vestibular Lesionsmentioning

confidence: 99%

Vestibular evoked myogenic potentials: optimal stimulation and clinical application

Young

2006

J Biomed Sci

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SummaryBy easily stimulating the ear with loud sound and recording on tonically contracted neck muscles, vestibular evoked myogenic potential (VEMP) test can reflect inner ear function other than the cochlea and semicircular canal. This expands the test battery for clinicians to explore saccular disease, adding a potential usefulness to the sacculo-collic reflex. The ideal stimulation mode for VEMPs is as follows: 95 dB tone bursts, frequency 500 Hz, stimulation repetition rate 5 Hz, rise/fall time 1 ms, plateau 2 ms, binaural stimulation with bilateral recordings. Animal model using guinea pigs has been established, which sets the stage for useful future studies investigating VEMPs in guinea pigs that would appear to resemble human VEMP responses. Clinically, VEMP test has been widely used in central and peripheral vestibular disorders.

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Section: Central Vestibular Lesionsmentioning

confidence: 99%

Vestibular evoked myogenic potentials: optimal stimulation and clinical application

Young

2006

J Biomed Sci

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“…This reflex arc is involved in the maintenance of body equilibrium. 1 VEMP is formed by myogenic responses activated through sound or galvanic stimulation and recorded by surface electromyography. The course of the potential is the saccular macula, lower vestibular nerveo, lateral vestibular nucleus, descending vestibulospinal pathways and motoneurons of the ipsilateral sternocleidomastoid (SCM) muscle.2 Auditory stimulation with highintensity sounds is the most often employed method, with the response captured in the cervical musculature during muscle contraction.…”

Section: Introductionmentioning

confidence: 99%

Potencial evocado miogênico vestibular (Vemp): avaliação das respostas em indivíduos normais

Felipe

Santos

Gonçalves

2008

Pró-Fono R. Atual. Cient.

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Background: the Vestibular Evoked Myogenic Potential (Vemp) is formed by myogenic neurophysiologic responses activated by high-intensity sound stimulation. The response is registered through surface electromyography of the cervical muscles during muscle contraction. The acoustic stimuli activate the saccular macula, the vestibular inferior nerve and the pathways related to the vestibule-spinal descendant nerves. Aim: to describe Vemp parameters in a normal population. Methods: thirty adults, 13 men and 17 women with no otoneurological complaints were selected. The stimuli were 200 tone burst, with a frequency of 1Hz and intensity of 118 dB Na, band-pass filter ranging from 10Hz to 1500Hz. The first potential biphasic P13-N23 wave was analyzed. Results: no significant difference was observed between the sides of stimulation in terms of latency and amplitude. However, a statistically significant difference was found for amplitude between genders. Conclusion: Vemp demonstrated to be a reliable instrument in the clinical assessment of the vestibular function. Key Words: Vestibular Function Tests; Evaluation; Standards. ResumoTema: o Potencial Evocado Miogênico Vestibular (Vemp) é formado por respostas miogênicas ativadas por estimulação sonora de alta intensidade. Essas respostas são registradas por eletromiografia de superfície sobre a musculatura cervical na presença de contração muscular, ativando a mácula, o nervo vestibular inferior e as vias vestíbulo-espinhais descendentes. Objetivo: descrever as respostas evocadas do Vemp em uma população normal. Método: selecionaram-se 30 sujeitos adultos, sendo 13 homens e 17 mulheres, sem queixas otoneurológicas. Utilizou-se 200 estímulos tone burst com freqüência de 1Hz e intensidade de 118dB Na, filtro passa-banda de 10Hz a 1500Hz. Os traçados obtidos foram analisados em relação ao primeiro potencial bifásico composto por P13 e N23. Resultados: não houve diferença estatisticamente significativa entre o lado da estimulação em relação a latência e amplitude, porém foi encontrada diferença estatisticamente significativa em relação à amplitude do potencial entre os sexos. Conclusão: Vemp demonstrou ser uma ferramenta confiável na avaliação da função vestibular. Palavras-Chave: Vestibular; Potencial; Avaliação.

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“…The positioning in the medial part of sternocleidomastoid muscle (13,14) used in this study was the most commonly used technique in the literature, with more consistent results, besides being comfortable for the patient (15,16,17) . Despite the various methods described in the literature for the activation of the sternocleidomastoid muscle (2,18,19,20,21) , the maximum lateral rotation of head with the seated individual was the method chosen in this research. This method is preferable for children and the elderly, due to the ease of staying in position without any major inconvenience (9,22) .…”

Section: Discussionmentioning

confidence: 99%

Potencial evocado miogênico vestibular cervical em crianças e adolescentes sem queixas vestibulares

Silva

Didoné

Sleifer

2017

Audiol., Commun. Res.

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Introduction:The Cervical Vestibular Myogenic Evoked Potential (cVEMP) has become a reliable and complementary measure of vestibular assessment. The investigation of vestibular disorders in the pediatric population is of great importance because they can have a series of repercussions throughout development. Purpose: To evaluate and analyze cVEMP responses in children and adolescents and compare them among gender, age, and ears. Methods: A cross-sectional study with 35 children and adolescents, 18 females and 17 males, aged 7 to 18 years, with normal hearing thresholds and no otoneurological complaints. All of them underwent a peripheral auditory evaluation and cVEMP. Results: In the analysis, it was observed that the mean latencies of P1 and N1 waves were, respectively, 15.92 ms and 24.32 ms, the amplitude P1/N1 of 36.91 µv and the symmetry ratio presented an average of 22.95%. No statistically significant differences were found comparing gender and ears. The same happened in the asymmetry index between genders. There were also no statistically significant differences in latencies and amplitudes. Conclusion: It was possible to measure values for latency and the amplitude of P1 and N1 waves in children and adolescents. In the present study, there was no statistically significant difference in the comparisons among ears, gender, and age.

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Vestibular evoked myogenic potentials in multiple sclerosis patients

Cited by 95 publications

References 17 publications

Vestibular evoked myogenic potentials: optimal stimulation and clinical application

Vestibular evoked myogenic potentials: optimal stimulation and clinical application

Potencial evocado miogênico vestibular (Vemp): avaliação das respostas em indivíduos normais

Potencial evocado miogênico vestibular cervical em crianças e adolescentes sem queixas vestibulares

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