scholarly journals Skull Vibration Induced Nystagmus Test: Correlations with Semicircular Canal and Otolith Asymmetries

2021 ◽  
Vol 11 (4) ◽  
pp. 618-628
Author(s):  
Christol Fabre ◽  
Haoyue Tan ◽  
Georges Dumas ◽  
Ludovic Giraud ◽  
Philippe Perrin ◽  
...  
Keyword(s):  
Vertical Component ◽  
Horizontal Component ◽  
Positive Test ◽  
Head Impulse Test ◽  
Control Group ◽  
Caloric Test ◽  
3D Analysis ◽  
Vestibular Evoked Myogenic Potential ◽  
Myogenic Potential ◽  
Vestibular Tests

Background: To establish in patients with peripheral vestibular disorders relations between skull vibration-induced nystagmus (SVIN) different components (horizontal, vertical, torsional) and the results of different structurally related vestibular tests. Methods: SVIN test, canal vestibular test (CVT: caloric test + video head impulse test: VHIT), otolithic vestibular test (OVT: ocular vestibular evoked myogenic potential oVEMP + cervical vestibular evoked myogenic potential cVEMP) performed on the same day in 52 patients with peripheral vestibular diseases (age < 65 years), and 11 control patients were analyzed. Mixed effects logistic regression analysis was performed to assert whether the presence of nystagmus in SVIN (3D analysis) have an association with the presence of peripheral vestibular dysfunction measured by vestibular explorations (CVT or OVT). Results: We obtained different groups: Group-Co (control group), Group-VNT (dizzy patients with no vestibular tests alterations), Group-O (OVT alterations only), Group-C (CVT alterations only), Group-M (mixed alterations). SVIN-SPV horizontal component was significantly higher in Group-M than in the other groups (p = 0.005) and correlated with alterations of lateral-VHIT (p < 0.001), caloric test (p = 0.002) and oVEMP (p = 0.006). SVIN-SPV vertical component was correlated with the anterior-VHIT and oVEMP alterations (p = 0.007; p = 0.017, respectively). SVIN-SPV torsional component was correlated with the anterior-VHIT positivity (p = 0.017). SVIN was the only positive test for 10% of patients (83% of Group-VNT). Conclusion: SVIN-SPV analysis in dizzy patients shows significant correlation to both CVT and OVT. SVIN horizontal component is mainly relevant to both vestibular tests exploring lateral canal and utricle responses. SVIN-SPV is significantly higher in patients with combined canal and otolith lesions. In some patients with dizziness, SVIN may be the only positive test.

scholarly journals Test Batteries and the Diagnostic Algorithm for Chronic Vestibular Syndromes

2021 ◽  
Vol 12 ◽  
Author(s):  
Meiko Kitazawa ◽  
Yuka Morita ◽  
Chihiro Yagi ◽  
Kuniyuki Takahashi ◽  
Shinsuke Ohshima ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Roc Curve ◽  
Visual Stimulation ◽  
Demographic Data ◽  
Depression Scale ◽  
Diagnostic Algorithm ◽  
Head Impulse Test ◽  
Caloric Test ◽  
Vestibular Evoked Myogenic Potential ◽  
Vestibular Tests

Objective: To develop a diagnostic algorithm for chronic vestibular syndromes by determining significant items that differ among diagnoses.Methods: Two hundred thirty-one patients with chronic vestibular syndromes lasting for &gt;3 months were included. Full vestibular tests and questionnaire surveys were performed: bithermal caloric test, cervical and ocular vestibular-evoked myogenic potential assessment, video head impulse test (vHIT), posturography, rotatory chair test, dizziness handicap inventory, hospital anxiety and depression scale (HADS), and Niigata persistent postural-perceptual dizziness (PPPD) questionnaire (NPQ). Differences in each item of the vestibular tests/questionnaires/demographic data were tested among the diagnoses. A receiver operating characteristic (ROC) curve was created for the significant items. The value that provided the best combination of sensitivity/specificity on the ROC curve was adopted as a threshold for diagnosing the targeted disease. Multiple diagnostic algorithms were proposed, and their diagnostic accuracy was calculated.Results: There were 92 patients with PPPD, 44 with chronic dizziness due to anxiety (CDA), 31 with unilateral vestibular hypofunction (UVH), 37 with undifferentiated dizziness (UD), and 27 with other conditions. The top four diagnoses accounted for 88% of all chronic vestibular syndromes. Five significant items that differed among the four diseases were identified. The visual stimulation and total NPQ scores were significantly higher in the patients with PPPD than in those with UVH and UD. The percentage of canal paresis (CP %) was significantly higher in the patients with UVH than in those with PPPD, CDA, and UD. The patients with CDA were significantly younger and had higher anxiety scores on the HADS (HADS-A) than those with UVH and UD. Moreover, catch-up saccades (CUSs) in the vHIT were more frequently seen in the patients with UVH than in those with PPPD. The most useful algorithm that tested the total and visual stimulation NPQ scores for PPPD followed by the CP%/CUSs for UVH and HADS-A score/age for CDA showed an overall diagnostic accuracy of 72.8%.Conclusions: Among the full vestibular tests and questionnaires, the items useful for differentiating chronic vestibular syndromes were identified. We proposed a diagnostic algorithm for chronic vestibular syndromes composed of these items, which could be useful in clinical settings.

scholarly journals Acute Vertigo in a Patient with Long-Term Organic Solvent Exposure: Importance of a Comprehensive Audio-Vestibular Test Battery

2020 ◽  
Vol 31 (05) ◽  
pp. 363-368
Author(s):  
Maxime Maheu ◽  
François Champoux ◽  
Adrian Fuente
Keyword(s):  
Organic Solvent ◽  
Organic Solvents ◽  
Vestibular System ◽  
Semicircular Canals ◽  
Vestibular Evoked Myogenic Potentials ◽  
Head Impulse Test ◽  
Solvent Exposure ◽  
Vestibular Evoked Myogenic Potential ◽  
Vestibular Tests ◽  
Organic Solvent Exposure

Abstract Background Ototoxicity induced by organic solvents has been identified in several groups of workers. Little is known, however, about the effects of organic solvents on the vestibular system. Purpose The aim of the study was to comprehensively assess the vestibular system and auditory functions in a worker exposed to organic solvents. Research Design Both behavioral and physiological auditory and vestibular evaluations were performed. Results No auditory-related findings associated with solvent exposure were found. The vestibulo-ocular reflex gain was abnormal for all semicircular canals with significant catch-up saccades, as measured by the video head impulse test. The cervical vestibular evoked myogenic potentials was absent in the right ear and small but replicable in the left ear. Ocular vestibular evoked myogenic potential were bilaterally absent. Conclusions The results suggest a case of vestibulotoxicity induced by a long history of organic solvent exposure. We suggest that solvent-exposed individuals should be evaluated with a comprehensive battery of auditory and vestibular tests.

Prognosis of patients with idiopathic sudden hearing loss: role of vestibular assessment

2010 ◽  
Vol 125 (3) ◽  
pp. 251-257 ◽  
Author(s):  
S Korres ◽  
G A Stamatiou ◽  
E Gkoritsa ◽  
M Riga ◽  
J Xenelis
Keyword(s):  
Hearing Loss ◽  
Inner Ear ◽  
Sudden Hearing Loss ◽  
Caloric Test ◽  
Test Results ◽  
Vestibular Evoked Myogenic Potential ◽  
Early Recovery ◽  
Profound Hearing Loss ◽  
Myogenic Potential ◽  
Vestibular Assessment

AbstractObjective:To evaluate the correlation between caloric and vestibular evoked myogenic potential test results, initial audiogram data, and early hearing recovery, in patients with idiopathic sudden hearing loss.Materials and methods:One hundred and four patients with unilateral idiopathic sudden hearing loss underwent complete neurotological evaluation. Results for vestibular evoked myogenic potential and caloric testing were compared with patients' initial and final audiograms.Results:Overall, abnormal vestibular evoked myogenic potential responses occurred in 28.8 per cent of patients, whereas abnormal caloric test results occurred in 50 per cent. A statistically significant relationship was found between the type of inner ear lesion and the incidence of profound hearing loss. Moreover, a negative correlation was found between the extent of the inner ear lesion and the likelihood of early recovery.Conclusion:In patients with idiopathic sudden hearing loss, the extent of the inner ear lesion tends to correlate with the severity of cochlear damage. Vestibular assessment may be valuable in predicting the final outcome.

Sign in / Sign up

Export Citation Format

Share Document