Influence of gender on the vestibular evoked myogenic potential

Carnaúba, Aline Tenório Lins; Farias, Vanessa Vieira; Santos, Nastassia; Oliveira, Aline Cabral de; Rodrigues, Renato Glauco de Souza; Menezes, Pedro de Lemos

doi:10.1590/s1808-86942011000200015

Cited by 16 publications

(13 citation statements)

References 18 publications

(39 reference statements)

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“…However, the functional significance of the sex differences in VOR found in this study is unclear. Cervical vestibular evoked myogenic potential testing in a population of young adults showed no sex differences in response latency or amplitude (33). Future studies will be needed to more firmly establish any sex differences in vestibular function, as they are clearly known to exist for auditory function.…”

Section: Discussionmentioning

confidence: 99%

Epidemiology of Vestibulo-Ocular Reflex Function

Layman

Geary

et al. 2015

Otology &Amp; Neurotology

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Objective To determine age-related changes in vestibulo-ocular reflex (VOR) function in community-dwelling adults, and evaluate these for associations with demographic characteristics and cardiovascular risk factors. Study Design Cross-sectional analysis within the Baltimore Longitudinal Study of Aging (BLSA), a longitudinal prospective cohort study. Setting Vestibular testing laboratory within an acute care teaching hospital. Patients Community-dwelling adults enrolled in the BLSA. Intervention(s) Horizontal VOR gain measurement using video head-impulse testing and visual acuity testing. Main Outcome Measure(s) VOR gain was calculated as the ratio of eye velocity to head velocity. Demographic and cardiovascular risk factor data were collected through study questionnaires. Results One hundred nine subjects were analyzed with mean age (SD) 69.9 years (14.2), with a range from 26 to 92 years. VOR gain remained stable from age 26 to 79 after which it significantly declined at a rate of 0.012/year (p = 0.033) in adjusted analyses. Individuals aged 80 years or older had a nearly 8-fold increased odds of VOR gain less than 0.80 relative to those aged less than 80 years in multivariate models (prevalence of 13.2% vs. 2.8%; OR 7.79, 95% CI: 1.04–58.38). Otherwise, VOR gain did not differ significantly across demographic or cardiovascular risk groups. Conclusion We report age-related decline in VOR function in individuals aged 80 years and older. Further analyses are in progress to establish the significance of these VOR abnormalities to functional and mobility outcomes in older individuals.

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Section: Discussionmentioning

confidence: 99%

Epidemiology of Vestibulo-Ocular Reflex Function

Layman

Geary

et al. 2015

Otology &Amp; Neurotology

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“…The n23 latencies were about 24 ms [26]. The latency of p13 for the right ear stood at 14.13 ms (±1.39) in women and 14.15 ms (±1.21) in men, and for the left ear, it was 14.14 ms (±1.42) in women and 14.35 ms (±1.41) in men.…”

Section: Discussionmentioning

confidence: 86%

Vestibular evoked myogenic potential

et al. 2014

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Introduction. Vestibular evoked myogenic potentials are neurophysiological method for examining of saccular function, the bottom of the vestibular nerve that in nervates the sacculus and central vestibular pathways. Those are inhibitory potentials of the sternocleido mastoid musclein response to ipsilateral acoustic stimulation of the sacculus. Parameters of vestibular evoked myogenic potential testing include threshold, latencies of p1 and n1 wave and interamplitude p13-n23, interaural difference of p13 and n23 latency and interaural amplitude difference ratio. The aim of this study was to compire parameters standardization of vestibular evoked myogenic potentials responses, latency p13 and n23 of waves, the amplitude of responses and interaural differences in the amplitude andto determinewhether there is a difference in values between the sexes. Material and methods. This research was meant to be a prospective study which included 30 normal audiovestibular volunteers of both sexes. The group consisted of 53.3% women and 46.7% men. The saccular function testing by vestibular evoked myogenic potentials was performed monoaurally using air-conductive 500 Hz tone burst auditory stimulation. Results. The average value of the p13 wave latency in healthy subjects of this study was 15.18 ms (±1.24) while the mean latency of n23 waves in the same subjects was 25.00 ms (±2.23). The average value of the amplitude of the p13-n23 waves was 80.28 (34. ±04) microvolts. Conclusion. The difference in the values of the basic parameters of vestibular evoked myogenic potential responses between men and women does not exist. No differences between the right and the left ear in the values of latency and amplitude were observed.

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“…The cVEMP waveform corresponds to a compound and averaged myogenic response (known as p13–n23 or P1–N1 response), which can be evoked by high intensity sounds or vibrations (34). The amplitude of cVEMPs is reduced with aging (35, 36) but are unaffected by gender (37). This evoked response has become a clinical standard for otolith (saccular) testing, used in a variety of vestibular disorders (34, 38–41).…”

Section: Discussionmentioning

confidence: 99%

Altered Cervical Vestibular-Evoked Myogenic Potential in Children with Attention Deficit and Hyperactivity Disorder

et al. 2017

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ObjectiveEmerging evidence suggests that children with attention deficit and hyperactivity disorder (ADHD) present more difficulties in standing and walking balance than typically developing children. Most of previous studies have assessed these functions using postural and sensory organization tests showing differences in balance performance between control and ADHD children. However, to date, it is unknown whether these balance alterations are accompanied with vestibular dysfunction. The principal aim of this study is to evaluate vestibular otolith function in ADHD and matched control children.MethodsWe assessed vestibular otolith function in children with ADHD and controls using the subjective visual vertical (SVV) bucket test and cervical vestibular-evoked myogenic potentials (cVEMPs). In addition, gait and balance were evaluated using the dynamic gait index (DGI) and computerized posturography.ResultsNon-significant differences between groups were obtained in SVV evaluation. DGI results show lower scores for overall test performance in children with ADHD (p < 0.001), while computerized postural recordings showed significant differences for the limit of stability between groups (p = 0.02). cVEMPs in response to 500 Hz tone bursts presented at 100 dB were absent or reduced in children with ADHD, as revealed by differences in P1 and N1 peak-to-peak amplitudes between groups (p < 0.01).ConclusionThese findings suggest that vestibular brainstem reflexes are altered in a subset of children with ADHD. We propose to include cVEMP reflexes in the clinical evaluation of ADHD patients.

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Influence of gender on the vestibular evoked myogenic potential

Cited by 16 publications

References 18 publications

Epidemiology of Vestibulo-Ocular Reflex Function

Epidemiology of Vestibulo-Ocular Reflex Function

Vestibular evoked myogenic potential

Altered Cervical Vestibular-Evoked Myogenic Potential in Children with Attention Deficit and Hyperactivity Disorder

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