Does the Video Head Impulse Test Replace Caloric Testing in the Assessment of Patients With Chronic Dizziness? A Systematic Review and Meta-Analysis
Brazilian Journal of Otorhinolaryngology
Vallim, M. G. B., Gabriel, G. P., et al. (2021).
Brazilian Journal of Otorhinolaryngology, 87(6), 733-741.
This systematic review and meta-analysis compares the sensitivity and specificity of the video head impulse test (vHIT) to caloric testing in adults, 18 years and older, with chronic dizziness or vertigo.
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Published Portuguese-, English-, or Spanish-language studies. Excludes animal and in vitro experimental studies, simple reviews, abstracts, case reports, letters to the editor, or book chapters.
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In adults with chronic dizziness or vertigo, 21% (95% CI=9-33%) demonstrate altered vHIT results compared to 55% (95% CI=43-67%) altered caloric testing results. Meta-analysis of vHIT showed low sensitivity varying from 31% to 36% and high specificity ranging from 83% to 98%. The authors conclude that the vHIT complements caloric testing, but is not a substitute.
