Vestibular evoked myogenic potential

Felipe, Lilian; Kingma, Herman; Gonçalves, Denise Utsch

doi:10.7162/s1809-48722012000100015

Cited by 6 publications

(3 citation statements)

References 29 publications

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“…The o-VEMP may be easily obtained from the skin surface beneath the eye, contralaterally to the acoustically stimulated ear. 14 15 The amplitude of the o-VEMP becomes more prominent when the subject looks upward, as the belly of the inferior oblique muscle is brought close to the recording electrode. An additional possible explanation for this phenomenon is that when this muscle contracts during looking upward, its motor units (motor neurons and/or muscle fibers) are activated more synchronously, producing compound action potentials of larger amplitude.…”

Section: Discussionmentioning

confidence: 99%

Ocular Vestibular Evoked Myogenic Potentials

Felipe

Kingma

2013

Int. Arch. Otorhinolaryngol.

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Introduction Diagnostic testing of the vestibular system is an essential component of treating patients with balance dysfunction. Until recently, testing methods primarily evaluated the integrity of the horizontal semicircular canal, which is only a portion of the vestibular system. Recent advances in technology have afforded clinicians the ability to assess otolith function through vestibular evoked myogenic potential (VEMP) testing. VEMP testing from the inferior extraocular muscles of the eye has been the subject of interest of recent research. Objective To summarize recent developments in ocular VEMP testing. Results Recent studies suggest that the ocular VEMP is produced by otolith afferents in the superior division of the vestibular nerve. The ocular VEMP is a short latency potential, composed of extraocular myogenic responses activated by sound stimulation and registered by surface electromyography via ipsilateral otolithic and contralateral extraocular muscle activation. The inferior oblique muscle is the most superficial of the six extraocular muscles responsible for eye movement. Therefore, measurement of ocular VEMPs can be performed easily by using surface electrodes on the skin below the eyes contralateral to the stimulated side. Conclusion This new variation of the VEMP procedure may supplement conventional testing in difficult to test populations. It may also be possible to use this technique to evaluate previously inaccessible information on the vestibular system.

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Section: Discussionmentioning

confidence: 99%

Ocular Vestibular Evoked Myogenic Potentials

Felipe

Kingma

2013

Int. Arch. Otorhinolaryngol.

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“…Vestibular evoked myogenic potential (VEMP) is a muscular reflex resulting from strong auditory stimulation that depends on the integrity of structures such as the vestibulospinal pathway and the effector muscles (1,4).…”

Section: ' Introductionmentioning

confidence: 99%

Vestibular evoked myogenic potentials (VEMP) captured in the forearm flexor muscles: a study of its feasibility and reference ranges

Valente

Carnaúba

Pai

et al. 2020

Clinics

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“…SSNHL accompanied with vertigo is usually considered to be caused by vestibular involvement. The vestibular-evoked myogenic potential (VEMP) is formed by myogenic responses activated by acoustic, galvanic, or bone vibration stimulation, and this is recorded by surface electromyography [5]. Cervical VEMP (cVEMP) was first introduced by Colebatch et al The aim of this method is to assess the myogenic activity of the sternocleidomastoid muscle (SCM) [6].…”

Section: Introductionmentioning

confidence: 99%

Clinical value of vestibular-evoked myogenic potential tests in patients with sudden sensorineural hearing loss

Wang

Bao

et al. 2019

BMC Neurol

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BackgroundThis study aims to investigate the clinical value of two kinds of vestibular-evoked myogenic potentials in patients with sudden sensorineural hearing loss (SSNHL).MethodsA total of 82 patients were divided into two groups: vertigo group and non-vertigo group. All patients underwent examinations for pure tone hearing thresholds, middle ear analysis, the videonystagmography, caloric tests, and vestibular-evoked myogenic potentials elicited from the sternocleidomastoid and extraocular muscle. In addition, 30 healthy subjects were selected as the control group.ResultsFor the 30 healthy subjects, the average latency of p13 and n23 of the cervical vestibular evoked myogenic potentials (cVEMPs) were 13.13 ± 2.89 ms and 23.51 ± 3.25 ms, respectively, and the bilateral amplitude asymmetry rate ranged within 0.05–0.31. The average latency of n10 of the ocular vestibular evoked myogenic potentials (oVEMPs) was 10.13 ± 0.48 ms. The average amplitude of the n10-p15-wave was 5.58 ± 0.65 μV. Among the 35 vertigo patients with SSNHL, 27 patients had normal cVEMP and oVEMP examination results, five patients had abnormal oVEMP examination results, and five patients had abnormal cVEMP examination results. The latency and amplifier of oVEMPs and cVEMPs were within the normal range in 47 SSNHL patients without vertigo. The chi-square value was 5.647, the P-value was equal to 0.017, and the difference was statistically significant at a confidence interval of 95%.ConclusionsOVEMPs and cVEMPs can be used evaluate the vestibular nerve function of SSNHL patients with vertigo.

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Vestibular evoked myogenic potential

Cited by 6 publications

References 29 publications

Ocular Vestibular Evoked Myogenic Potentials

Ocular Vestibular Evoked Myogenic Potentials

Vestibular evoked myogenic potentials (VEMP) captured in the forearm flexor muscles: a study of its feasibility and reference ranges

Clinical value of vestibular-evoked myogenic potential tests in patients with sudden sensorineural hearing loss

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