Diverse clinical and laboratory manifestations of bilateral vestibulopathy

Moon, Myung-Gi; Chang, Sun O; Kim, Min‐Beom

doi:10.1002/lary.25946

Cited by 22 publications

(24 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Positive bilateral vHIT does not always correlate with caloric or rotatory chair test results in BV. This indicates that a spectrum of vestibulopathies exists according to the stimulation frequency of the deficit [79].…”

Section: Bilateral Vestibular (Bv) Failurementioning

confidence: 90%

Testing of the Semicircular Canal Function in Vertigo and Dizziness

Rambold¹

2017

Up to Date on Meniere's Disease

View full text Add to dashboard Cite

Testing the function of the semicircular canals (SCC) in vertigo and dizziness is an important step towards a diagnosis. There are different vestibular tests available: rotatory testing, bithermal caloric irrigation (CI) and the video-head-impulse test (vHIT). This chapter describes the basic methods, the current knowledge and economic aspects focused on the vHIT and CI. After a general section, common vertigo diseases are discussed with respect to the functional tests. From this chapter, it is clear that not only one method has to be applied to test vestibular function but a battery including the CI and the vHIT in three dimensions.

show abstract

Section: Bilateral Vestibular (Bv) Failurementioning

confidence: 90%

Testing of the Semicircular Canal Function in Vertigo and Dizziness

Rambold¹

2017

Up to Date on Meniere's Disease

View full text Add to dashboard Cite

show abstract

“…Furthermore, the positive correlation between average vHIT gain and average rotary chair gain suggests that average vHIT gain in can be used to determine level of severity. This contrasts Moon et al 21 who identified 65 patients with bilateral vHIT abnormalities by either gain reduction or observable corrective saccade. Using ROC curves, they found no consistency between caloric testing, vHIT, and rotary chair for diagnosing BVH.…”

Section: Discussionmentioning

confidence: 58%

“…Similarly, Weber et al 6 demonstrated good agreement between vHIT gain and caloric responses in patients with BVH due to gentamicin vestibulotoxicity, where patients with average vHIT gains less than 0.3 were unresponsive to caloric testing. Moon et al 21 also noted increasing average vHIT gain in patient groups as their caloric responses improved from bilateral to unilateral to normal.…”

Section: Discussionmentioning

confidence: 87%

See 1 more Smart Citation

Can the Video Head Impulse Test Define Severity of Bilateral Vestibular Hypofunction?

Judge

Janky

Barin

2017

Otology &Amp; Neurotology

View full text Add to dashboard Cite

Objective The objective of the study was to compare rotary chair and video head impulse test (vHIT) findings in patients with bilateral vestibular hypofunction (BVH) to determine whether vHIT can: 1) define severity of BVH and 2) accurately predict rotary chair findings in patients with BVH. Study Design Retrospective chart review Setting Research Hospital Patients Twenty subjects with bilateral vestibular hypofunction as assessed by rotary chair. Intervention Rotary chair and vHIT Main Outcome Measures The main outcome measures were rotary chair phase, gain, and symmetry and vHIT vestibulo-ocular reflex (VOR) gain. Rotary chair and vHIT results were assessed and subjects were stratified into groups according to the severity of their vestibular hypofunction. For rotary chair, subjects were classified as Mild, Moderate, or Severe BVH. For vHIT, subjects were classified as normal, unilateral or bilateral. Results Average lateral canal vHIT VOR gain: 1) significantly increased as severity of BVH decreased, and 2) demonstrated a significant and positive, linear relationship with rotary chair gains. vHIT was in disagreement with rotary chair in the classification of 5 subjects, which could be due to right-left asymmetry of BVH. Conclusion vHIT can serve as an initial tool for identifying patients with BVH. Lower vHIT gains are consistent with having Severe BVH. There was disagreement between vHIT and rotary chair, though not for any patients with Severe BVH. Compared to rotary chair, the clinical gold standard for identifying BVH, vHIT possesses 100% sensitivity for identifying Severe BVH when average vHIT gains are < 0.46.

show abstract

“…Chronic vestibular insufficiency can be due to severe unilateral [127, 128] or moderate, symmetrical or asymmetrical, bilateral vestibular impairment [129, 130]. The patient with chronic vestibular insufficiency has no symptoms while sitting or lying but feels off-balance as soon as she stands and more so when she walks [131].…”

Section: Video Head Impulse Testingmentioning

confidence: 99%