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.

Changes in Vestibular Evoked Myogenic Potentials after Meniere Attacks

2005 ◽  
Vol 114 (9) ◽  
pp. 717-721 ◽  
Author(s):  
Shih-Wei Kuo ◽  
Ting-Hua Yang ◽  
Yi-Ho Young
Keyword(s):  
Semicircular Canals ◽  
The Other ◽  
Spontaneous Nystagmus ◽  
Vestibular Evoked Myogenic Potentials ◽  
Ménière’S Disease ◽  
Vestibular Evoked Myogenic Potential ◽  
Myogenic Potential ◽  
Lesion Side ◽  
Important Idea ◽  
Healthy Side

Objectives: The aim of this study was to apply videonystagmography (VNG) and vestibular evoked myogenic potential (VEMP) tests to patients with Meniere attacks, to explore the mechanics of where saccular disorders may affect the semicircular canals. Methods: From January 2001 to December 2003, 12 consecutive patients with unilateral definite Meniere's disease with vertiginous attacks underwent VNG for recording spontaneous nystagmus, as well as VEMP tests. Results: At the very beginning of the Meniere attack, the spontaneous nystagmus beat toward the lesion side in 5 patients (42%) and toward the healthy side in 7 patients (58%). Twenty-four hours later, only 6 patients (50%) showed spontaneous nystagmus beating toward the healthy side. Nevertheless, spontaneous nystagmus subsided in all patients within 48 hours. The VEMP test was performed within 24 hours of a Meniere attack; the VEMPs were normal in 4 patients and abnormal in 8 patients (67%). After 48 hours, 4 patients with initially abnormal VEMPs had resolution and return to normal VEMPs, and the other 4 patients still had absent VEMPs. Conclusions: Most patients (67%) with Meniere attacks revealed abnormal VEMPs, indicating that the saccule participates in a Meniere attack. This is an important idea that stimulates consideration of the mechanism of Meniere attacks.

Vestibular-Evoked Myogenic Potential Testing in Vestibular Localization and Diagnosis

2020 ◽  
Vol 40 (01) ◽  
pp. 018-032 ◽  
Author(s):  
Rachael L. Taylor ◽  
Miriam S. Welgampola ◽  
Benjamin Nham ◽  
Sally M. Rosengren
Keyword(s):  
Vestibular System ◽  
Vestibular Evoked Myogenic Potentials ◽  
Vestibular Disorders ◽  
Complementary Information ◽  
Vestibular Evoked Myogenic Potential ◽  
Myogenic Potential ◽  
Superior Canal Dehiscence ◽  
Otolith Function ◽  
Utricular Function ◽  
Canal Dehiscence

AbstractVestibular-evoked myogenic potentials (VEMPs) are short-latency, otolith-dependent reflexes recorded from the neck and eye muscles. They are widely used in neuro-otology clinics as tests of otolith function. Cervical VEMPs are recorded from the neck muscles and reflect predominantly saccular function, while ocular VEMPs are reflexes of the extraocular muscles and reflect utricular function. They have an important role in the diagnosis of superior canal dehiscence syndrome and provide complementary information about otolith function that is useful in the diagnosis of other vestibular disorders. Like other evoked potentials, they can provide important localizing information about lesions that may occur along the VEMP pathway. This review will describe the VEMP abnormalities seen in common disorders of the vestibular system and its pathways.

Semicircular canal versus otolithic involvement in idiopathic sudden hearing loss

2009 ◽  
Vol 123 (12) ◽  
pp. 1325-1330 ◽  
Author(s):  
G Stamatiou ◽  
E Gkoritsa ◽  
J Xenellis ◽  
M Riga ◽  
S Korres
Keyword(s):  
Hearing Loss ◽  
Significant Relationship ◽  
Semicircular Canal ◽  
Sudden Hearing Loss ◽  
Standard Protocol ◽  
Healthy Controls ◽  
Vestibular Evoked Myogenic Potential ◽  
Caloric Testing ◽  
Clinical Appearance ◽  
Myogenic Potential

AbstractObjective:To evaluate the results of vestibular evoked myogenic potential testing in patients with idiopathic sudden hearing loss, and to correlate these results with the findings of caloric testing, the clinical appearance of vertigo and the influence of age.Materials and methods:Eighty-six patients with unilateral idiopathic sudden hearing loss and 35 healthy controls underwent a standard protocol of neurotological evaluation. Vestibular evoked myogenic potential responses were measured and compared with caloric responses.Results:On the affected side, 30.2 per cent of patients showed abnormal vestibular evoked myogenic potential responses, while 52.3 per cent had abnormal caloric responses. A statistically significant relationship was found between the results of these two tests. A statistically significant relationship was also found between the type of vestibular lesion and the occurrence of vertigo. Advancing age correlated statistically with more extensive labyrinthic lesions.Conclusions:A combination of vestibular evoked myogenic potential and electronystagmography testing indicated the existence of vestibular involvement in many patients with idiopathic sudden hearing loss. Both tests are necessary in order to obtain a more thorough and in-depth knowledge of the pathophysiology of idiopathic sudden hearing loss.

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

Inferior vestibular neuritis: a novel subtype of vestibular neuritis

2009 ◽  
Vol 124 (5) ◽  
pp. 477-481 ◽  
Author(s):  
D Zhang ◽  
Z Fan ◽  
Y Han ◽  
G Yu ◽  
H Wang
Keyword(s):  
Pure Tone Audiometry ◽  
Systematic Investigation ◽  
Vestibular Neuritis ◽  
Vestibular Evoked Myogenic Potentials ◽  
Vestibular Evoked Myogenic Potential ◽  
Caloric Testing ◽  
Myogenic Potential ◽  
Lower Amplitude ◽  
Cerebral Computed Tomography ◽  
Inferior Vestibular Nerve

AbstractObjective:To report eight cases of inferior vestibular neuritis, in order to raise awareness of this new subtype of vestibular neuritis.Materials and methods:We retrospectively analysed 216 patients (104 males and 112 females; age range 10–64 years; mean age 38.4 years) with full clinical documentation who had attended our hospital's vertigo clinic between May 2007 and December 2008. All patients underwent systematic investigation, including hearing tests, radiology, caloric testing and vestibular evoked myogenic potential testing.Results:Of 216 patients with vestibular neuritis, eight cases were diagnosed as inferior vestibular neuritis, based on comprehensive analysis of test data. The clinical features of these eight patients were consistent with the characteristics of vestibular neuritis. The results of pure tone audiometry and caloric testing were normal, and the possibility of central lesions was excluded by cerebral computed tomography or magnetic resonance imaging on admission. Six cases had unilateral loss of vestibular evoked myogenic potentials, whereas two had a unilateral lower amplitude of vestibular evoked myogenic potentials.Conclusions:Inferior vestibular neuritis is a novel subtype of vestibular neuritis, which involves the inferior vestibular nerve alone. Vestibular evoked myogenic potential testing is a useful aid to the diagnosis of inferior vestibular neuritis.

Correlation between canal paresis and spontaneous nystagmus during early stage of acute peripheral vestibular disorders

2010 ◽  
Vol 130 (12) ◽  
pp. 1352-1357 ◽  
Author(s):  
Hiroaki Fushiki ◽  
Masayuki Ishida ◽  
Shigeki Sumi ◽  
Akira Naruse ◽  
Yukio Watanabe
Keyword(s):  
Early Stage ◽  
Spontaneous Nystagmus ◽  
Vestibular Disorders ◽  
Canal Paresis

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>

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