scholarly journals Clinical applications of furosemide-loading vestibular-evoked myogenic potential and the video head impulse test

2018 ◽  
Vol 77 (4) ◽  
pp. 280-287
Author(s):  
Toru Seo
Keyword(s):  
Clinical Applications ◽  
Head Impulse Test ◽  
Video Head Impulse Test ◽  
Vestibular Evoked Myogenic Potential ◽  
Head Impulse ◽  
Myogenic Potential

scholarly journals Video Head Impulse Test (vHIT) and Vestibular Evoked Myogenic Potential (VEMP) Test for Assessment of Vertigo: Our Initial Experience

2020 ◽  
Vol 26 (1) ◽  
pp. 5-9
Author(s):  
Ahmed Raquib ◽  
Md Abdullah Al Harun ◽  
MA Matin ◽  
Dhiman Pramanik ◽  
M Muinul Hafiz
Keyword(s):  
Cross Sectional Study ◽  
Head Impulse Test ◽  
Video Head Impulse Test ◽  
Sectional Study ◽  
Vestibular Evoked Myogenic Potential ◽  
Cross Sectional ◽  
Head Impulse ◽  
Myogenic Potential ◽  
Age Range ◽  
Anatomical Part

Introduction: Loss of balance causes the sensation of vertigo. Balance is maintained by vestibular afferent from labyrinth, eyes and proprioceptors and their central integration. For diagnosis of vertigo, along with history different vestibulometric tests can be done to identify the specific anatomical part that is involved. Material and methods: A cross sectional study was done among 82 patients who did video Head Impulse Test (vHIT) and among 75 patients who did Vestibular Evoked Myogenic Potential (VEMP) test at AudiovestibularCentre(AVC) at Bangladesh ENT Hospital Ltd. during the period from April 2018 to September 2019. Results: Age range of the sample was 16 to 80 years. Among the 82 patients who did vHIT 62(75.6%) had abnormality in either Semi Circular Canal. Among 75 patients who did VEMP 27(36%) were detected to have abnormality in either in saccule or utricle. Conclusion: For diagnosis of cause of vertigo the appropriate test for individual part of vestibule is essential. vHIT and VEMP are two tests which are complementary to each other in explaining common peripheral causes of vertigo. Bangladesh J Otorhinolaryngol; April 2020; 26(1): 5-9

scholarly journals Changes in Vestibular Function in Patients With Head-and-Neck Cancer Undergoing Chemoradiation

2020 ◽  
pp. 014556132094948
Author(s):  
Roland Hülse ◽  
Boris A. Stuck ◽  
Karl Hörmann ◽  
Nicole Rotter ◽  
Julia Nguyen ◽  
...  
Keyword(s):  
Head And Neck Cancer ◽  
Head And Neck ◽  
Neck Cancer ◽  
Pure Tone ◽  
Pure Tone Audiometry ◽  
Head Impulse Test ◽  
Video Head Impulse Test ◽  
Vestibular Evoked Myogenic Potential ◽  
Myogenic Potential ◽  
Vestibular Testing

Introduction: While the cochleotoxicity of cisplatin has been well investigated, less is known about the effects of platinum-based chemotherapy on the vestibular system. In particular, there is a lack of prospective studies using modern laboratory vestibular testing that examine the effects of cisplatin on the semicircular canals and on the otolith organs. The aim of the present study was, therefore, to investigate the vestibulotoxic effect of cisplatin in patients with head and neck tumors who are undergoing chemoradiation. Methods: Forty-five patients undergoing cisplatin-based chemoradiation for head and neck cancer received a vestibular assessment consisting of anamnesis, a horizontal video head impulse test (vHIT), ocular and cervical vestibular evoked myogenic potential testing, as well as pure tone audiometry. This assessment was performed before therapy, 6 weeks after therapy, and 3 months after therapy. Results: Video head impulse test showed a significantly reduced median gain 6 weeks after chemoradiation. In addition, significantly more refixational saccades could be detected after therapy. Vestibular evoked myogenic potential testing results also revealed significant changes, whereas pure tone audiometry did not. None of the patients mentioned “dizziness” during the follow-up examinations. Conclusion: We demonstrated a vestibulotoxic effect of cisplatin-based chemoradiation in patients with head and neck cancer. Future studies are needed to better understand cisplatin-induced vestibulotoxicity and to identify possible vestibuloprotective substances. Still, before and after chemoradiation, patients should undergo not only auditory testing but also vestibular testing in order to detect potential vestibular loss as soon as possible and to quickly initiate vestibular physiotherapy.

scholarly journals Feasibility of Preoperative Video Head Impulse Test to Predict the Nerve of Origin in Patients with Vestibular Schwannomas

2021 ◽  
Vol 10 (12) ◽  
pp. 2677
Author(s):  
Gi-Sung Nam ◽  
Seong-Hoon Bae ◽  
Hye-Jeen Kim ◽  
Ji-Woong Cho ◽  
In-Seok Moon
Keyword(s):  
Pure Tone Audiometry ◽  
Vestibular Nerve ◽  
Head Impulse Test ◽  
Caloric Test ◽  
Surgical Removal ◽  
Video Head Impulse Test ◽  
Vestibular Evoked Myogenic Potential ◽  
Head Impulse ◽  
Function Test ◽  
Inferior Vestibular Nerve

Vestibular schwannoma (VS) originates from Schwann cells in the superior or inferior vestibular nerve. Identifying the precise origin will help in determining the optimal surgical approach. We retrospectively analyzed the preoperative vestibular function test according to VS origin to determine whether the test is a valuable indicator of tumor origin. Forty-seven patients with VS (male:female = 18:29, mean age: 54.06 ± 13.50 years) underwent the cochleovestibular function test (pure-tone audiometry, caloric test, video head impulse test (vHIT), cervical and ocular vestibular-evoked myogenic potential, and posturography). All patients then underwent surgical removal of VS, and the schwannoma origin was confirmed. The tumor originated from the superior vestibular nerve (SVN group) in 21 patients, the inferior vestibular nerve (IVN group) in 26 patients, and an undetermined site in eight patients. The only value that differed significantly among the groups was the gain of the vestibular-ocular reflex (VOR) in the ipsilesional posterior canal (iPC) during the vHIT. Our results indicate that VOR gain in the iPC may be used to predict the nerve origin in patients with VS. Other cochleovestibular function tests have limited value to discriminate nerve origins, especially in cases of medium to large VS.

Vestibular semicircular canal function as detected by video Head Impulse Test (vHIT) is essentially unchanged in people with Parkinson’s disease compared to healthy controls

2021 ◽  
pp. 1-9
Author(s):  
Kim E. Hawkins ◽  
Elodie Chiarovano ◽  
Serene S. Paul ◽  
Ann M Burgess ◽  
Hamish G. MacDougall ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Semicircular Canal ◽  
Neurodegenerative Disorder ◽  
Vestibular Function ◽  
Head Impulse Test ◽  
Healthy Controls ◽  
Video Head Impulse Test ◽  
Head Impulse ◽  
Vestibulo Ocular Reflex

BACKGROUND: Parkinson’s disease (PD) is a common multi-system neurodegenerative disorder with possible vestibular system dysfunction, but prior vestibular function test findings are equivocal. OBJECTIVE: To report and compare vestibulo-ocular reflex (VOR) gain as measured by the video head impulse test (vHIT) in participants with PD, including tremor dominant and postural instability/gait dysfunction phenotypes, with healthy controls (HC). METHODS: Forty participants with PD and 40 age- and gender-matched HC had their vestibular function assessed. Lateral and vertical semicircular canal VOR gains were measured with vHIT. VOR canal gains between PD participants and HC were compared with independent samples t-tests. Two distinct PD phenotypes were compared to HC using Tukey’s ANOVA. The relationship of VOR gain with PD duration, phenotype, severity and age were investigated using logistic regression. RESULTS: There were no significant differences between groups in vHIT VOR gain for lateral or vertical canals. There was no evidence of an effect of PD severity, phenotype or age on VOR gains in the PD group. CONCLUSION: The impulsive angular VOR pathways are not significantly affected by the pathophysiological changes associated with mild to moderate PD.

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