Sensitivity and specificity of the video head impulse test in the diagnosis of vestibular migraine - A systematic review and meta-analysis
Abstract
Objective: To estimate the proportion of patients with VM who have abnormal vHIT results and to determine the sensitivity and specificity of the test to detect VM.
Methods: This study followed PRISMA guidelines to conduct a meta-analysis on the accuracy of vHIT in VM patients. A literature search was performed in ten indexes databases (PubMed, PubMed PMC, Embase, Scopus, Web of Science, Cochrane Library, BVS, ProQuest, Epistemonikos and MEDLINE) without time restrictions, using the descriptors "Vestibular Migraine" AND "Video Head Impulse Test". Studies were selected based on the PICO strategy (Patient, Intervention, Comparison, and Outcome). Statistical analysis used the random-effects method to pool results, assessing heterogeneity among studies with Cochran'sQ test and the I2 statistic. The accuracy of vHIT was estimated through sensitivity, specificity, and predictive values. A significance level was 5%. This review was not registered in PROSPERO (International Prospective Register of Systematic Reviews) because it evaluates previously published observational studies of diagnostic performance without patient-level data collection.
Results: Nine studies published between 2016 and 2023 were included in the meta-analysis. The prevalence of abnormal results was 43%. vHIT had a sensitivity of 42%, specificity of 89%, positive predictive value of 83%, and negative predictive value of 54% for VM diagnosis. Saccades was observed in 36% of cases. Normal VOR gain was found in 22%…
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Evidence Hub reads this as a meta-analysis, done in people. Its evidence level is 1 of 5 (Highest · pooled evidence). Pooled evidence from several studies sits at the top of the evidence pyramid.
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