Ocular Vestibular Evoked Myogenic Potential Using Different Test Stimuli

Deepak, Dessai Teja; Bhat, Jayashree S.; Kumar, Kaushlendra

doi:10.1155/2013/161937

Cited by 9 publications

(6 citation statements)

References 16 publications

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“…These EMG normalized peak-to-peak amplitudes of tone burst mVEMP were higher even with the lower intensity level of stimulation (125 peSPL) when compared with click-evoked mVEMP 13 at 138 dB peSPL. The amplitude asymmetry ratio of ipsilateral and contralateral responses was similar to the corrected ampli-tude asymmetry ratio of click-evoked responses reported by De Natale et al 13 These observations are similar to the findings in the cervical 15,[23][24][25] and oVEMP 16 that report increased latency and higher amplitude for tone burst stimuli than click stimuli.…”

Section: Discussion Normative Values Of Tone Burst Mvempsupporting

confidence: 89%

“…13,14 However, the literature on cVEMP and oVEMP has shown that they are more robust when elicited by 500 Hz tone bursts than the clicks. [15][16][17][18] Also study on frequency tuning of cVEMP and oVEMP 19 shows that the lowest VEMP threshold is obtained at 500 Hz. Further, as mVEMP eventually becomes widely recognized test for saccular function, it is likely that it would be used for the assessment of saccular function and the functional integrity of the vestibulotrigeminal neural pathways.…”

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confidence: 98%

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Tone Burst Masseter Vestibular Evoked Myogenic Potentials: Normative Values and Test–Retest Reliability

2021

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Background Masseter vestibular evoked myogenic potential (mVEMP) is a recent tool for the assessment of vestibular and trigeminal pathways. Though a few studies have recorded mVEMP using click stimuli, there are no reports of these potentials using the more conventional VEMP eliciting stimuli, the tone bursts. Purpose The aim of the study is to establish normative values and determine the test–retest reliability of tone burst evoked mVEMP. Research Design The research design type is normative study design. Study Sample Forty-four healthy participants without hearing and vestibular deficits in the age range of 18 to 50 years participated in the study. Data Collection and Analysis All participants underwent mVEMP testing using 500 Hz tone-burst stimuli at 125 dB peSPL. Ten participants underwent second mVEMP testing within 1 month of the initial testing to estimate the test–retest reliability. Results Tone burst mVEMP showed robust responses in all participants. There were no significant ear and sex differences on any mVEMP parameter (p > 0.05); however, males had significantly higher EMG normalized peak-to-peak amplitude than females. Intraclass correlation coefficient (ICC) values of tone burst mVEMP showed excellent test–retest reliability (ICC >0.75) for ipsilateral and contralateral p11 latency, ipsilateral EMG normalized p11-n21 peak to peak amplitude, and amplitude asymmetry ratio. Fair and good test–retest reliability (0.4 < ICC > 0.75) was observed for ipsilateral and contralateral n21 latency, contralateral EMG normalized peak-to-peak amplitude, and amplitude asymmetry ratio. Conclusion Tone burst mVEMP is a robust and reliable test for evaluating the functional integrity of the vestibulomasseteric reflex pathway.

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Section: Discussion Normative Values Of Tone Burst Mvempsupporting

confidence: 89%

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confidence: 98%

Tone Burst Masseter Vestibular Evoked Myogenic Potentials: Normative Values and Test–Retest Reliability

2021

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“… 24 In the present study, tone bursts have been used instead of click sounds as they have been shown to evoke a stronger response in VEMP using BC stimulation. 25 The risk of hearing damage might also generally be less when using a burst sound rather than a click sound. 26…”

Section: Introductionmentioning

confidence: 99%

VEMP using a new low-frequency bone conduction transducer

Hȧkansson

Jansson

Tengstrand

et al. 2018

MDER

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ObjectiveA new prototype bone conduction (BC) transducer B250, with an emphasized low-frequency response, is evaluated in vestibular evoked myogenic potential (VEMP) investigations. The aim was to compare cervical (cVEMP) and ocular (oVEMP) responses using tone bursts at 250 and 500 Hz with BC stimulation using the B250 and the conventional B81 transducer and by using air conduction (AC) stimulation.MethodsThree normal subjects were investigated in a pilot study. BC stimulation was applied to the mastoids in cVEMP, and both mastoid and forehead in oVEMP investigations.ResultsBC stimulation was found to reach VEMP thresholds at considerably lower hearing levels than in AC stimulation (30–40 dB lower oVEMP threshold at 250 Hz). Three or more cVEMP and oVEMP responses at consecutive 5 dB increasing mastoid stimulation levels were only obtained in all subjects using the B250 transducer at 250 Hz. Similar BC thresholds were obtained for both ipsilateral and contralateral mastoid stimulation. Forehead stimulation, if needed, may require a more powerful vibration output.ConclusionViable VEMP responses can be obtained at a considerably lower hearing level with BC stimulation than by AC stimulation. The cVEMP and oVEMP responses were similar when measured on one side and with the B250 attached to both ipsilateral and contralateral mastoids.

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“…In healthy subjects, the optimum frequency for evoking VEMPs to short-tone burst stimuli is around 500 Hz [ 1 ]. Deepak et al [ 4 ] demonstrated that 500 Hz stimuli have significantly better n1-p1 amplitude in oVEMPs as click stimuli. Depending on the pathology, the optimum stimulus frequencies for VEMPs could be different [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Identification of Neural Mechanisms in First Single-Sweep Analysis in oVEMPs and Novel Normative Data

Hecker

Scherer

Schönfeld

et al. 2022

JCM

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Background: Bone-conducted (BC) VEMPs provide important tools for measuring otolith function. However, two major drawbacks of this method are encountered in clinical practice—small n10 amplitude and averaging technique. In this study, we present the results of a new VEMP setup measuring technique combined with a novel single-sweep analysis. Methods: The study included BC oVEMP data from 92 participants for the evaluation of normative data using a novel analysis technique. For evaluating test-retest reliability, the intraclass correlation coefficient (ICC) was used. Results: We found significant n10 amplitude differences in single-sweep analyses after the first and second measurements. Thereby, mathematical analyses of the head movement did not show any differences in the first or second measurements. The normative n10 amplitude was 20.66 µV with an asymmetric ratio (AR) of 7%. The new value of late shift difference (LSD) was 0.01 ms. The test retest-reliability showed good to excellent ICC results in 9 out of 10 measurements. Conclusions: Our results support a phenomenon in single-sweep analysis of the first stimuli independent of head movement and signal morphology. Furthermore, the values obtained with the new measurement method appear to be more sensitive and may allow an extended diagnostic range due to the new parameter LSD.

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Ocular Vestibular Evoked Myogenic Potential Using Different Test Stimuli

Cited by 9 publications

References 16 publications

Tone Burst Masseter Vestibular Evoked Myogenic Potentials: Normative Values and Test–Retest Reliability

Tone Burst Masseter Vestibular Evoked Myogenic Potentials: Normative Values and Test–Retest Reliability

VEMP using a new low-frequency bone conduction transducer

Identification of Neural Mechanisms in First Single-Sweep Analysis in oVEMPs and Novel Normative Data

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