scholarly journals Diagnostic capabilities of the vestibular evoked myogenic potential test in children with vestibular dysfunction

2020 ◽  
Vol 6 (4) ◽  
pp. 606 ◽  
Author(s):  
Kalina I. Madzharova ◽  
Ana P. Beshkova
Keyword(s):  
Vestibular Dysfunction ◽  
Otolith Organs ◽  
Vestibular Evoked Myogenic Potential ◽  
Additional Method ◽  
Analysis And Evaluation ◽  
Myogenic Potential ◽  
Ocular Vemp ◽  
Cervical Vemp ◽  
Diagnostic Capabilities

<p class="abstract"><strong>Background:</strong> Vestibular evoked myogenic potential (VEMP) testing is used in the diagnosis of vestibular disorders. It is an objective method for testing the the otolith organs of the vestibular system. VEMP test is an additional method for diagnosing vestibular neuritis (VN). The combination of cervical VEMP (cVEMP) and ocular VEMP (oVEMP) testing has an advantage in long-term monitoring of patients with VN. The VEMP test is well-studied for adults but studies involving children are insufficient. The aim of this study was to analysis and evaluation of the results from VEMP testing of children diagnosed with vestibular dysfunction. Analysis and evaluation of the results from VEMP testing of children diagnosed with vestibular dysfunction.</p><p class="abstract"><strong>Methods:</strong> History, examination of ENT organs, tone threshold audiometry, tympanometry, otoneurological examination, VEMP test.  </p><p class="abstract"><strong>Results:</strong> Children with vestibular dysfunction who were examined showed changes predominantly in the oVEMP test. The upper branch of the vestibular nerve is affected.   </p><p class="abstract"><strong>Conclusions:</strong> The VEMP test is an additional method for diagnosing patients with vestibular dysfunction. It is safe when used for children.</p>

Effect of Video Games on the Otolithic Reflex System

2021 ◽  
pp. 1-8
Author(s):  
Chih-Ching Wang ◽  
Yi-Ho Young
Keyword(s):  
Young People ◽  
Video Gaming ◽  
Short Term ◽  
Vestibular Evoked Myogenic Potential ◽  
Cutoff Value ◽  
Myogenic Potential ◽  
Cervical Vemp ◽  
Before And After ◽  
Reflex System

<b><i>Background:</i></b> Video gaming (VG) has since the 1980s become increasingly ubiquitous entertainment among the adolescents and young adults. Many young people expe­rienced dizzy spells, but not vertiginous episodes, after playing VG. <b><i>Objectives:</i></b> This study performed ocular vestibular-evoked myogenic potential (oVEMP) and cervical VEMP (cVEMP) tests in subjects before and after engaging on VG to investigate the effect of VG on the otolithic reflex system. <b><i>Methods:</i></b> Twenty subjects who frequently played VG (&#x3e;3 days per week) for more than 10 years were assigned to the long-term group. Another 20 subjects with engaging on VG &#x3c;3 days per week or &#x3c;10 years were assigned to the short-term group. Each subject underwent baseline oVEMP and cVEMP tests first, followed by playing VG for 1 h. Then, all subjects underwent the same paradigm. The “VG-year” is defined as frequency of VG playing within 1 week (day/week) multiplied by total length of VG engagement (year). <b><i>Results:</i></b> Engagement on VG rarely affected the oVEMP responses for either short- or long-term players. In contrast, the response rates of cVEMP significantly declined from pre-VG period (80%) to post-VG period (58%) in the short-term group, but not in the long-term group. The cutoff value for predicting absent cVEMP in VG engagement is 21 VG-year. <b><i>Conclusion:</i></b> Short-term engagement on VG may result in temporary cVEMP loss, while permanent cVEMP loss could be identified in long-term VG players. The cutoff value for predicting absent cVEMP in VG engagement is 21 VG-year, indicating that damage to the sacculo-collic reflex system could be anticipated in a subject who has played VG at least 1 h per session, 7 days weekly for 3 years.

Association between vestibular dysfunction and findings of horizontal head-shaking and vibration-induced nystagmus

2020 ◽  
Vol 30 (5) ◽  
pp. 319-327
Author(s):  
Chisato Fujimoto ◽  
Takuya Kawahara ◽  
Masato Yagi ◽  
Toshihisa Murofushi
Keyword(s):  
Medical Records ◽  
Vestibular Function ◽  
Mixed Effects ◽  
Vestibular Dysfunction ◽  
Regression Analyses ◽  
Lateral Semicircular Canal ◽  
Vestibular Evoked Myogenic Potential ◽  
Vestibular Diseases ◽  
Ocular Vemp ◽  
Horizontal Head

BACKGROUND: The association between vestibular function and findings of horizontal head-shaking nystagmus (HHSN) and vibration-induced nystagmus (VIN) tests is not well understood. OBJECTIVE: To investigate the association between function in the five distinct vestibular end organs and findings of these nystagmus tests. METHODS: We retrospectively reviewed the medical records of 50 patients with vestibular diseases who underwent HHSN testing, VIN testing, video head impulse testing (vHIT), cervical vestibular evoked myogenic potential testing to air-conducted sound (ACS cVEMP) and ocular VEMP testing to ACS (ACS oVEMP). We performed mixed-effects logistic regression analyses to see whether age, sex or the presence of nystagmus in HHSN or VIN have an association with the presence of peripheral vestibular dysfunction on the opposite side to the direction of nystagmus. RESULTS: The presence of HHSN had a significant association with abnormal vHIT in the lateral semicircular canal (LSCC) on the opposite side to the direction of nystagmus. The presence of VIN had a significant association with abnormal vHIT in all the SCCs and abnormal ACS oVEMP on the opposite side to the direction of nystagmus. CONCLUSIONS: HHSN had an association with LSCC dysfunction alone. VIN had an association with dysfunction in all the SCCs and the utricle.

Vibration-Induced Nystagmus in Patients with Vestibular Disorders

2003 ◽  
Vol 129 (3) ◽  
pp. 255-258 ◽  
Author(s):  
Masafumi Ohki ◽  
Toshihisa Murofushi ◽  
Haruka Nakahara ◽  
Keiko Sugasawa
Keyword(s):  
Clinical Significance ◽  
Vestibular Dysfunction ◽  
Spontaneous Nystagmus ◽  
Clinical Test ◽  
Vestibular Disorders ◽  
Vestibular Evoked Myogenic Potential ◽  
Canal Paresis ◽  
Caloric Testing ◽  
Myogenic Potential ◽  
Healthy Side

OBJECTIVE: Our goal was to clarify the clinical significance of vibration-induced nystagmus (VIN). METHODS: One hundred patients with unilateral vestibulocochlear disorders were enrolled into this study. However, patients with spontaneous nystagmus were excluded. Vibratory stimuli (approximately 100 Hz) were presented to the mastoids and the forehead. Patients also underwent caloric testing and vestibular evoked myogenic potential testing. RESULTS: Of the 100 patients, 60 (60%) showed VIN. The nystagmus was mainly horizontal. VIN was more frequently evoked on the mastoids than the forehead. In the majority of patients, the direction of VIN was toward the healthy side, whereas some patients, especially patients with Meniere's disease, showed nystagmus toward the affected side. VIN was frequently evoked in patients with severe unilateral vestibular damages (canal paresis >50%) (39 of 43, or 90%). CONCLUSION: VIN testing is a simple and sensitive clinical test that indicates unilateral vestibular dysfunction.

Evaluation of Vestibular Functions in Patients with Vogt-Koyanagi-Harada Disease

2017 ◽  
Vol 22 (3) ◽  
pp. 190-195 ◽  
Author(s):  
Keishi Fujiwara ◽  
Shinya Morita ◽  
Kimiko Hoshino ◽  
Atsushi Fukuda ◽  
Yuji Nakamaru ◽  
...  
Keyword(s):  
Autoimmune Disorder ◽  
University Hospital ◽  
Caloric Test ◽  
Subjective Symptoms ◽  
Vestibular Evoked Myogenic Potential ◽  
Caloric Testing ◽  
Ocular Vemp ◽  
Cervical Vemp ◽  
Vestibular Symptoms ◽  
Vkh Disease

Vogt-Koyanagi-Harada (VKH) disease is an idiopathic, multisystem autoimmune disorder characterized by bilateral, diffuse granulomatous uveitis associated with neurological, audiovestibular, and dermatological manifestations. The purpose of this study is to investigate vestibular functions in patients with VKH disease. A total of 43 patients with VKH disease in Hokkaido University Hospital were enrolled in this study. Subjective symptoms such as dizziness or vertigo and the results of various vestibular examinations including nystagmus testing, caloric testing, and vestibular-evoked myogenic potential (VEMP) testing were investigated. Eight of 42 patients (19.0%) complained of subjective vestibular symptoms. On the other hand, 12 of 28 patients (42.9%) showed nystagmus, and 7 of 15 patients (46.7%) showed unilateral or bilateral weakness in the caloric test. VEMP testing was performed for 16 patients. Seven (43.8%) and 8 (50.0%) patients were evaluated as abnormal in cervical VEMP and ocular VEMP testing, respectively. The rate of detection of nystagmus was significantly higher than that of subjective symptoms. As vestibular dysfunction in patients with VKH disease cannot be detected through history taking alone, nystagmus testing, caloric testing, and VEMP testing should be performed to evaluate vestibular functions associated with VKH disease. It is considered that abnormal VEMP findings are associated with otolith organ dysfunction.

scholarly journals The Effect of Sleep Deprivation on Ocular Vestibular Evoked Myogenic Potentials Using Air Conducted Sound

2014 ◽  
Vol 2014 ◽  
pp. 1-6
Author(s):  
Su-Jiang Xie ◽  
Hong-Zhe Bi ◽  
Qin Yao
Keyword(s):  
Sleep Deprivation ◽  
Healthy Subjects ◽  
Extraocular Muscles ◽  
Vestibular Evoked Myogenic Potentials ◽  
Asymmetry Ratio ◽  
Vestibular Evoked Myogenic Potential ◽  
Myogenic Potential ◽  
Ocular Vemp ◽  
Normal Sleep ◽  
Utricular Function

Vestibular evoked myogenic potential (VEMP) in response to a loud air conducted sound (ACS) recorded from extraocular muscles, the so-called ocular VEMP (oVEMP), has been confirmed to be able to evaluate utricular function. This study aimed to evaluate the effect of sleep deprivation (SD) on oVEMP parameters. oVEMPs were recorded in 20 male healthy subjects once after an ordinary sleep and once after 26–29 h of SD. The latencies of peak N1 and P1, N1-P1 amplitude, N1-P1 interval, and asymmetry ratio (AR) of oVEMP recorded from both eyes under normal sleep and SD conditions were 10.04 ± 0.59 ms versus 10.56 ± 0.69 ms (left eye), 14.95 ± 0.92 ms versus 15.64 ± 1.05 ms (left eye), and 7.44 ± 2.86 µV versus 5.26 ± 2.15 µV (left eye); 10.08 ± 0.66 ms versus 10.64 ± 0.73 ms (right eye), 14.88 ± 0.89 ms versus 15.59 ± 1.02 ms (right eye), and 7.16 ± 2.88 µV versus 5.04 ± 2.05 µV(right eye); 10.40 ± 5.81% versus 11.43 ± 6.37%, respectively. After SD, the latencies of oVEMP were delayed and N1-P1 amplitude was lower, whereas N1-P1 interval and AR remained unchanged. The present study showed that oVEMP test could be used to evaluate the fatigue induced by SD.

scholarly journals Vestibular prognosis in idiopathic sudden sensorineural hearing loss with vestibular dysfunction treated with oral or intratympanic glucocorticoids: a protocol for randomized controlled trial

Trials ◽  
2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Weiming Hao ◽  
Liping Zhao ◽  
Huiqian Yu ◽  
Huawei Li
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Vestibular Function ◽  
Vestibular Dysfunction ◽  
Sudden Sensorineural Hearing Loss ◽  
Sensorineural Hearing ◽  
Vestibular Evoked Myogenic Potential ◽  
Hearing Outcome ◽  
Myogenic Potential ◽  
Secondary Outcomes

Abstract Background Idiopathic sudden sensorineural hearing loss (ISSNHL) is a rapid-onset sensorineural hearing impairment with unclear etiology and unsatisfying treatment effects. Vestibular dysfunction has been considered as a poor indicator in the clinical manifestations and prognosis of ISSNHL, which occurred in approximately 28–57% cases. Glucocorticoids, administered through oral or intratympanic way, are currently regularly and standardly applied for ISSNHL to improve the hearing outcome. However, the vestibular prognosis of ISSNHL after routine treatments remains seldom explored. This study aims to compare the effectiveness of oral and intratympanic glucocorticoids in ISSNHL with vestibular dysfunction in terms of the pattern and trajectory of possible process of vestibular function recovery. Methods/design A randomized, outcome-assessor- and analyst-blinded, controlled, clinical trial (RCT) will be carried out. Seventy-two patients with ISSNHL complaining of vestibular dysfunction appearing as vertigo or imbalance will be recruited and randomized into either oral or intratympanic glucocorticoid therapy group with a 1:1 allocation ratio. The primary outcomes will be vestibular function outcomes assessed by sensory organization test, caloric test, video head impulse test, cervical vestibular evoked myogenic potential, and ocular vestibular evoked myogenic potential; the secondary outcomes include self-reported vestibular dysfunction symptoms; dizziness-related handicap, visual analogue scale for vertigo and tinnitus; and pure tone audiometry. Assessments of primary outcomes will be performed at baseline and at 4 and 8 weeks post-randomization, while assessments of secondary outcomes will be performed at baseline and 1, 2, 4, and 8 weeks post-randomization. Discussion Previous intervention studies of ISSNHL included only hearing outcomes, with little attention paid on the prognosis of vestibular dysfunction. This trial will be the first RCT study focusing on the progress and prognosis of vestibular dysfunction in ISSNHL. The efficacy of two commonly used therapies of glucocorticoids will be compared in both auditory and vestibular function fields, rather than in the hearing outcome alone. Trial registration ClinicalTrials.gov NCT03974867. Registered on 23 July 2019

scholarly journals Ageing effect on air-conducted ocular vestibular evoked myogenic potential

2015 ◽  
Vol 5 (2) ◽  
Author(s):  
Kaushlendra Kumar ◽  
Jayashree S. Bhat ◽  
Nimalka Maria Sequeira ◽  
Kiran M. Bhojwani
Keyword(s):  
Older Adult ◽  
Response Rate ◽  
Tone Burst ◽  
Age Group ◽  
Vestibular Evoked Myogenic Potential ◽  
Myogenic Potential ◽  
Ocular Vemp ◽  
Age Related ◽  
Significant Difference ◽  
Middle Aged Adults

One of the recent diagnostic tests to assess the function of otolithic organs is through vestibular evoked myogenic potential (VEMP) testing. There are equivocal findings on effect of aging on ocular VEMP (oVEMP) parameters with reference to latencies. Hence this study was taken up to investigate the age related changes in oVEMP parameters. This present study considered 30 participants in each age group i.e., young adults, middle-aged adults and older adults. oVEMP were recorded using insert earphone at 100dBnHL at 500hZ short duration tone burst. The results showed in older adult significant difference in response rate, latencies and amplitude as compared to young and middle adult. Hence age should be taken into consideration when interpreting oVEMP results.

scholarly journals Ocular vestibular evoked myogenic potential (VEMP) reveals subcortical HTLV-1-associated neurological disease

2019 ◽  
Author(s):  
Tatiana Rocha Silva ◽  
Marco Aurélio Rocha Santos ◽  
Luciana Macedo de Resende ◽  
Ludimila Labanca ◽  
Rafael Teixeira Scoralick Dias ◽  
...  
Keyword(s):  
Neurological Disease ◽  
Evoked Potential ◽  
Hearing Level ◽  
Vestibular Evoked Myogenic Potential ◽  
Asymptomatic Group ◽  
Cross Sectional ◽  
Recording Time ◽  
Ocular Vemp ◽  
Human T Cell ◽  
Cervical Vemp

AbstractIntroductionVestibular Myogenic Evoked Potential (VEMP) evaluates vestibulo-ocular and vestibulospinal reflexes associated with posture.PurposeTo compare cervical and ocular VEMP in individuals with HTLV-1 associated myelopathy (HAM) and with HTLV-1-asymptomatic infection.Materials and MethodsThis cross-sectional study included 52 HTLV-1-infected individuals (26 HAM and 26 asymptomatic carriers) and 26 negative controls. The groups were similar regarding age and gender. Participants underwent ocular and cervical VEMP that were performed simultaneously. The stimulus used to generate VEMP was a sound, low-frequency toneburst, intensity of 120 decibels normalized hearing level (dB nHL), bandpass filter from 10 to 1,500 Hz, with 100 stimuli at 500 Hertz (Hz) and 50 milliseconds (ms) recording time. An alteration in the electrophysiological waves P13 and N23 for cervical VEMP and N10 and P15 waves for ocular VEMP was compared between groups.ResultsCervical VEMP was different among the groups for P13 (p=0.001) and N23 (p=0.003). Ocular VEMP was similar for N10 (p=0.375) and different for P15 (p=0.000). In the HTLV-1-asymptomatic group, 1(3.8%) individual presented changes in both ocular and cervical VEMP, while in HAM group, 16(61.5%) presented changes in both tests.ConclusionNeurological impairment in HAM was not restricted to the spinal cord. The mesencephalic and thalamic connections, tested by ocular VEMP, were also altered. Damage of the oculomotor system, responsible for eye stabilization during head and body movements, may explain why dizziness is such a frequent complaint in HAM.Authors’ summaryHuman T-cell lymphotropic virus type 1 (HTLV-1) infection is endemic in Brazil and can cause HTLV-1-associated myelopathy (HAM). This neurological disease progresses slowly and, within ten years after its onset, can confine the patient to a wheelchair. Changes in HAM inflammatory characteristics can subsequently occur in the cortex, subcortical white matter, cerebellum, and brainstem. In the present study, we used the electrophysiological test Vestibular Myogenic Evoked Potential (VEMP) to evaluate the thalamic, brainstem, and spinal neural connections. This test evaluates the peripheral and the central vestibular pathway and has been used to test the postural reflexes involved in the control of one’s balance. The VEMP from the oculomotor muscles demonstrated that a subcortical impairment occurs in HAM and can also occur in the asymptomatic phase of HTLV-1 infection.

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