Age-related changes in the vestibular-evoked myogenic potentials

Ochi, Kentaro; Ohashi, Toru

doi:10.1016/s0194-5998(03)01578-x

Cited by 82 publications

(72 citation statements)

References 12 publications

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“…Cabe destacar que en 5 sujetos no se detectaron respuestas en ninguno de los dos oídos. Probablemente la ausencia de respuesta bilateral de los VEMP se deba a la edad en 4 de los 5 casos en los que esto sucedió [15][16][17] (estos 4 sujetos eran mayores de 65 años). En los pacientes en los que se obtuvieron respuestas en los dos oídos, no hubo diferencias en la latencia de la respuesta entre el oído afecto y el normal.…”

Section: Discussionunclassified

Resultados de los potenciales evocados miogénicos vestibulares en el vértigo posicional paroxístico benigno

Boleas-Aguirre

Sánchez-Ferrándiz²,

Artieda

et al. 2007

Acta Otorrinolaringológica Española

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Objetivo: El vértigo posicional paroxístico benigno (VPPB) parece deberse a la migración de otoconias dentro de los conductos semicirculares o su adherencia a la cúpula. Si bien el origen de estas otoconias es la mácula del utrículo, aprovechando que los potenciales evocados miogénicos vestibulares (VEMP) valoran la función del sáculo, nuestro objetivo es estudiar su función en pacientes con VPPB. Pacientes y método: En 19 pacientes con VPPB por afección del conducto semicircular posterior, se valoró el nivel de audición, la respuesta de las pruebas calórica, rotatoria y VEMP. Se determinó en los VEMP ipsolaterales y contralaterales los umbrales, las latencias de las ondas p13 y n23 a 100 dB, la amplitud entre máximos y la diferencia de la amplitud interaural. Resultados: Se halló ausencia de respuesta de los VEMP en el 52 % de los oídos con VPPB. Cuando se corrigió por la ausencia de respuesta bilateral, los VEMP estaban ausentes en el 20,3 % de los casos. Conclusiones: En algunos pacientes con VPPB hay cierto grado de disfunción sacular.Palabras clave: VEMP. Vértigo posicional paroxístico benigno. Sáculo. Vestibular Evoked Myogenic Potentials and Benign Paroxysmal Positional VertigoObjective: Benign paroxysmal positional vertigo (BPPV) seems to occur because of otoconia migration into the semicircular canals or their adherence to the cupula. Although the origin of these otoconia lies in the macula of the utricle, vestibular evoked myogenic potentials (VEMPs) can be used assess saccular function. The aim of this study is to assess the saccular function in patients diagnosed with BPPV. Patients and method: Nineteen patients diagnosed with BPPV of the posterior semicircular canal were included in this study. Their auditory function and their caloric, rotatory chair, and VEMP responses were tested. Ipsilateral and contralateral VEMP thresholds, ipsilateral and contralateral p13 and n23 latencies at 100 dB, inter-peak amplitude and the interaural amplitude difference were determined. Results: We found a lack of VEMP response in 52 % of the ears with BPPV. When adjusted for bilateral absence, VEMP response was absent in 20.3 % of ears. Conclusions: Some patients with idiopathic BPPV show a degree of saccular dysfunction.Key words: VEMPs. Benign paroxysmal positional vertigo. Saccule. INTRODUCCIÓNEl vértigo posicional paroxístico benigno (VPPB) es una afección frecuente del oído interno y, de acuerdo con las hipótesis actuales, aparece como consecuencia de la migración de las otoconias en los conductos semicirculares o su adherencia a la cúpula de éstos. Las otoconias son depósi-tos cristalinos inorgánicos embebidos en la superficie de las membranas otolíticas del utrículo y el sáculo 1 . Cuando se desplazan de esta localización y flotan libremente en el interior de los conductos semicirculares o se adhieren a su cú-pula, estimulan los órganos terminales sensibles a los movimientos. Esto ocasiona vértigo y nistagmo cuando se adoptan las posiciones que desencadenan el cuadro. De todas maneras, no se ha identificado es...

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Section: Discussionunclassified

Resultados de los potenciales evocados miogénicos vestibulares en el vértigo posicional paroxístico benigno

Boleas-Aguirre

Sánchez-Ferrándiz²,

Artieda

et al. 2007

Acta Otorrinolaringológica Española

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“…Brantberg and Fransson [20] reported that binaural acoustic stimulation led to symmetric VEMPs that could save time and muscle fatigue. Welgampola and Colebatch [21] and Ochi and Ohashi [12] reported that in patients older than 60-65 years, clickevoked VEMP amplitudes decreased; this decrease was probably caused by morphological changes in the ves-tibular system that led to a decreased magnitude of the VEMP response. Ochi and Ohashi addressed the possibility that the decline in response amplitude was not a result of age but reduced tension in the SCM muscle during recording.…”

Section: Normative Datamentioning

confidence: 98%

“…The patient should lie supine; the head is either slightly raised, or elevated and turned as far as possible to activate the SCM. Some researchers instruct the patient to remain seated either pressing the forehead against a bar in front of them [8], or turning the head to the contralateral side to contract the sternocleidomastoid muscle [9][10][11][12][13]. In a unique approach to contract the SCM muscles, Ferber-Viart et al [14] had their patients seated in armchairs with their chins pointed down to their chests.…”

Section: Vestibular-evoked Myogenic Potential Response Techniques: Elmentioning

confidence: 99%

Vestibular-evoked myogenic potentials

Honaker

Samy

2007

Current Opinion in Otolaryngology &Amp; Head &Amp; Neck Surgery

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Purpose of review:This article reviews the literature on vestibularevoked myogenic potential testing, a short latency electromyogram evoked by high acoustic stimuli and recorded via surface electrodes over the sternocleidomastoid muscle. Applications and refinements of this technique are described for different pathologies and in adults and children. Recent findings: Various techniques for electrode placement have been described to elicit a vestibular-evoked myogenic potential response, which has been clinically investigated in normal individuals, under pathological conditions, and in adult and pediatric patients. As vestibular-evoked myogenic potential amplitude is linearly related to the level of background activity of the sternocleidomastoid muscle, maintaining steady contraction of the muscle can be challenging in some patients. Summary: Vestibular-evoked myogenic potential testing may provide additional information about the vestibular system and allow site of lesion testing (e.g. saccule and inferior vestibular nerve) in patients of all ages. Its role has yet to be defined in the diagnosis and treatment of common vestibular disorders, including Meniere's disease, vestibular neuronitis, labyrinthitis, and other diseases. Further research is needed to support its clinical usefulness in patients with balance disorders, to optimize patient selection, and to establish its cost effectiveness.

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“…Currently, stimuli above 90 dBHL are used 2,[8][9][10][11][14][15][16]18,19,24,[28][29][30][31] . However, in many studies, the threshold is surveyed by means of stimuli of different intensities (with ascending or descending techniques) until the lowest stimulus intensity capable of triggering a response is found 2,21,25,32 .…”

Section: Stimuli Averagingmentioning

confidence: 99%

“…As to the placement of the reference lead, the following positions have been reported: on the upper border of the sternum 2,13,14,17,19,20,24,27,28,32 , on the sternocleidomastoid muscle tendon 25 or on the upper clavicle border 26 . In most studies, the ground electrode must be positioned on the forehead middle line 10,[13][14][15][16]18,[24][25][26][27]31 .…”

Section: Recording On the Sternocleidomastoid Musclementioning

confidence: 99%

Potenciais miogênicos evocados vestibulares: metodologias de registro em homens e cobaias

Oliveira

David

Colafêmina

2008

Rev. Bras. Otorrinolaringol.

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The vestibular evoked myogenic potential (VEMP) is a clinical test that assess the vestibular function by means of an inhibitory vestibulo-neck reflex, recorded in body muscles in response to high intensity acoustic stimuli. Aim: To check and analyze the different methods used to record VEMPs in humans and in guinea pigs. Materials and Methods: We researched the following databases: MEDLINE, LILACS, SCIELO and COCHRANE. Results: we noticed discrepancies in relation to the ways used to record the vestibular evoked myogenic potentials in relation to the following factors: patient position at the time of recording, type of sound stimulus used (clicks or tone bursts), parameters for stimuli mediation (intensity, frequency, duration of presentation, filters, response amplification gain and windows for stimulus recording), type of phone used and way of stimulus presentation (mono or binaural, ipsi or contralateral). Conclusion: There is no consensus in the literature as to the best recording method for vestibular evoked myogenic potentials. We need more specific studies in order to compare these recordings and establish a standard model to use it in the clinical practice.

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Age-related changes in the vestibular-evoked myogenic potentials

Cited by 82 publications

References 12 publications

Resultados de los potenciales evocados miogénicos vestibulares en el vértigo posicional paroxístico benigno

Resultados de los potenciales evocados miogénicos vestibulares en el vértigo posicional paroxístico benigno

Vestibular-evoked myogenic potentials

Potenciais miogênicos evocados vestibulares: metodologias de registro em homens e cobaias

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