Binocular video head impulse test: Normative data study

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378041%3A_____%2F23%3A00582153" target="_blank" >RIV/68378041:_____/23:00582153 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11120/23:43925476 RIV/00216208:11150/23:10464592 RIV/00179906:_____/23:10464592 RIV/00064173:_____/23:43925476

Result on the web

<a href="https://www.frontiersin.org/articles/10.3389/fneur.2023.1153102/full" target="_blank" >https://www.frontiersin.org/articles/10.3389/fneur.2023.1153102/full</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3389/fneur.2023.1153102" target="_blank" >10.3389/fneur.2023.1153102</a>

Result language

angličtina

Original language name

Binocular video head impulse test: Normative data study

Original language description

IntroductionThe video head impulse test (vHIT) evaluates the vestibulo-ocular reflex (VOR). It's usually recorded from only one eye. Newer vHIT devices allow a binocular quantification of the VOR. Purpose (Aim)To investigate the advantages of simultaneously recorded binocular vHIT (bvHIT) to detect the differences between the VOR gains of the adducting and the abducting eye, to define the most precise VOR measure, and to assess gaze dys/conjugacy. We aimed to establish normative values for bvHIT adducting/abducting eye VOR gains and to introduce the VOR dysconjugacy ratio (vorDR) between adducting and abducting eyes for bvHIT. MethodsWe enrolled 44 healthy adult participants in a cross-sectional, prospective study using a repeated-measures design to assess test-retest reliability. A binocular EyeSeeCam Sci 2 device was used to simultaneously record bvHIT from both eyes during impulsive head stimulation in the horizontal plane. ResultsPooled bvHIT retest gains of the adducting eye significantly exceeded those of the abducting eye (mean (SD): 1.08 (SD = 0.06), 0.95 (SD = 0.06), respectively). Both adduction and abduction gains showed similar variability, suggesting comparable precision and therefore equal suitability for VOR asymmetry assessment. The pooled vorDR here introduced to bvHIT was 1.13 (SD = 0.05). The test-retest repeatability coefficient was 0.06. ConclusionOur study provides normative values reflecting the conjugacy of eye movement responses to horizontal bvHIT in healthy participants. The results were similar to a previous study using the gold-standard scleral search coil, which also reported greater VOR gains in the adducting than in the abducting eye. In analogy to the analysis of saccade conjugacy, we propose the use of a novel bvHIT dysconjugacy ratio to assess dys/conjugacy of VOR-induced eye movements. In addition, to accurately assess VOR asymmetry, and to avoid directional gain preponderance between adduction and abduction VOR-induced eye movements leading to monocular vHIT bias, we recommend using a binocular ductional VOR asymmetry index that compares the VOR gains of only the abduction or only the adduction movements of both eyes

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

30103 - Neurosciences (including psychophysiology)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Frontiers in Neurology

ISSN

1664-2295

e-ISSN

1664-2295

Volume of the periodical

14

Issue of the periodical within the volume

may.

Country of publishing house

CH - SWITZERLAND

Number of pages

10

Pages from-to

1153102

UT code for WoS article

000987496000001

EID of the result in the Scopus database

2-s2.0-85159864097