Vestibular evoked myogenic potentials: an overview

Cal, Renato Valério Rodrigues; Bahmad, Fayez

doi:10.1590/s1808-86942009000300023

Cited by 10 publications

(6 citation statements)

References 47 publications

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“…The mean values obtained were found to be consistent with P1 (P13) and N1 (P23) values in the literature [20][21][22][23][24][25] . Berry et al 26 did not find any relationship between Tinnitus Disability Questionnaire (TDQ) scores and pure voice mean and speech discrimination scores.…”

Section: Discussionsupporting

confidence: 88%

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Evaluation of Vestibular Evoked Myogenic Potentials (VEMP) Individuals with Tinnitus and Normal Hearing

Admis

Ünsal

Gündüz

2019

The International Tinnitus Journal

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The aim the present study is to evaluate ocular and cervical Vestibular Evoked Myogenic Potentials (VEMPs) of adult individuals with and without tinnitus who have normal hearing. Thirty one patients who have normal hearing, complaining about unilateral or bilateral subjective tinnitus and 30 volunteers who without tinnitus and vestibular complains were enrolled into the present study. Following examination by of Ear Nose Throat (ENT) physician, Tinnitus Disability Questionnaire (TDQ), pure tone audiometry (125-16.000 Hz) speech tests, oVEMP and cVEMP tests were applied to all participants. Fourteen individuals with normal hearing and tinnitus were male (44%) and 17 (56%) were female with an age average of 35.8 ± 10.2.30 years; the control group consisted of 16 males (53%) and 14 females (47%) with an age average of 37.5 ± 12 years. Two individuals of the tinnitus group had bilateral tinnitus and 29 individuals had unilateral tinnitus. A statistically significant difference in individuals without tinnitus and tinnitus must be normal at work between test answers that are not available 125-16000 Hz range Air Conduction (AC) hearing thresholds, speech tests, cVEMP and oVEMP responses. Tinnitus may appear due to many reasons. Vestibular system is one of the conditions that can cause tinnitus. According to the findings obtained from adult individuals with normal hearing, the vestibular system does not cause tinnitus.

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Section: Discussionsupporting

confidence: 88%

“…De Waele et al 19 implemented cVEMP in the patients diagnosed with Meniere and no response was obtained by 54% 19 . VEMP test may be used for diagnostic purposes during earlay stages of Meniere's syndrome 20,21 . Shepard VEMP test with the diagnosis of Meniere's disease may occur in the future could be reported early 22 .…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Vestibular Evoked Myogenic Potentials (VEMP) Individuals with Tinnitus and Normal Hearing

Admis

Ünsal

Gündüz

2019

The International Tinnitus Journal

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“…After appropriate skin cleaning, surface electrodes are placed on the following positions: active, on the upper one-third of SCM; reference electrode, on the anterior margin of ipsilateral clavicle; and ground electrode, on the forehead. The patients turn their head by 45º to the contralateral side with slight head flexion by ⁓30º in the sitting position and the responses were recorded from the ipsilateral SCM muscle (8). The stimulus was delivered monaurally via supra-aural head phone (TDH-39).…”

Section: Cervical Vestibular Evoked Myogenic Potentialsmentioning

confidence: 99%

Video Head Impulse test and Cervical Vestibular Evoked Myogenic Potentials outcomes in Diabetes

hadhoud

Ibraheem

Galhoum

2019

Zagazig University Medical Journal

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Introduction: Diabetes Mellitus is a worldwide chronic systemic disorder that is characterized by deficiency in insulin secretion from pancreas and/or impairment in its action in its target tissues, which affects daily activities and shortens lifetime, requiring a lifelong management program, resulting in glucose impairments in inner ear leading to vestibular and/or auditory dysfunctions. Aim: The aim of this study was to assess the impact of type 1 DM and type 2 DM on vestibular system using vHIT and cVEMP. Methods: This study included 45 patients divided into 3 groups: 15 type 1 DM (Group 1), 15 type 2 DM (Group 2) and 15 apparently healthy age controls (Group 3). All patients were subjected to: Full history taking, Otoscopic and basic audiological examination, Vestibular evaluation including: arabic questionnaire version of "Dizziness Handicap Inventory" (DHI), cervical vestibular evoked myogenic potentials and video head impulse test. Results: Results of this study revealed that there were statistical difference in P13, N23 latencies of cVEMPs, lateral canal gain of vHIT and in lateral canals gain asymmetry. Olso, there were no statistical differences in peak to peak amplitude or asymmetry ratio and in posterior and anterior canals gain, also no significant differences in RALP and LARP gain asymmetry between control and diabetic groups. Conclusions: Diabetes affects vestibular system at different levels. Type 1 has more prominent effect than type 2. cVEMPs and vHIT has different pathways. Accordingly, they are used as complementary tests in diagnosis of vestibular affection in diabetes.

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“…Esta respuesta motora puede ser registrada a través de electrodos colocados sobre el ECM. La actividad electromiográfica en respuesta al estímulo es promediada (200 veces) y se obtiene una curva evocada que conoce como cVEMP (Figura 3) (39) . Los cVEMP pueden ser evocados utilizando un estímulo auditivo de alta intensidad (90 a 100 dB nHL) conducido por aire (AC), una vibración transmitida a través de hueso (BC) o por medio de un estímulo eléctrico de corta duración, llamado estímulo galvánico (gVEMP).…”

Section: Vestíbulo Derechounclassified

Evaluación electrofisiológica del sistema auditivo y vestibular

Olmedo G.,

Chiti-Morales,

Córdova J.

et al. 2016

Rev. Hosp. Clín. Univ. Chile (En línea)

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The clinical evaluation of hearing loss in adult patients is usually performed by perceptual assessment through audiometer tests. This evaluation requires cooperation of the evaluated subjects. On the other hand, it is not possible to perform a perceptual audiometer test in newborns, and due to the need of an early audiological management of deafness in newborns -with hearing aids or cochlear implants-, modern medicine requires early diagnosis of hearing loss, preferably before the age of three months. Several electrophysiological clinical tools have been developed in audiology that allow us to make early diagnosis of hearing loss in those who are unable to respond an audiometry. The electrophysiological evaluation of the auditory system includes cochlear potentials, auditory brainstem responses, and cortical auditory evoked potentials. On the other hand, the electrophysiological evaluation of the vestibular system includes the cervical and ocular myogenic vestibular potentials (cVEMPs and oVEMPs). This article also includes a brief description of otoacoustic emissions, which are not an electric measure of the central nervous system, but are widely used as a diagnostic tool in pediatric audiology. The physiological advances in the knowledge of the auditory system allowed the early diagnosis of hearing loss in the newborn. However, none of these electrophysiological tests replaces the perceptual evaluation of hearing thresholds with audiometric tests.

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Vestibular evoked myogenic potentials: an overview

Cited by 10 publications

References 47 publications

Evaluation of Vestibular Evoked Myogenic Potentials (VEMP) Individuals with Tinnitus and Normal Hearing

Evaluation of Vestibular Evoked Myogenic Potentials (VEMP) Individuals with Tinnitus and Normal Hearing

Video Head Impulse test and Cervical Vestibular Evoked Myogenic Potentials outcomes in Diabetes

Evaluación electrofisiológica del sistema auditivo y vestibular

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