Abstract
A Simple Specific Functional Test for SCD: VEMPs to High Frequency (4,000Hz) Stimuli-Their Origin and Explanation.
Highlights
Reviewed by: Bryan Kevin Ward, Johns Hopkins University, United States Steven D
We fully agree with the statement by Noij et al [1] that for the detection of semicircular canal dehiscence (SCD) “High frequency vestibular evoked myogenic potential (VEMP) testing is superior to all other methods described to date
We reported a Brief Communication in Otolaryngology and Head Neck Surgery showing the ocular VEMP to high frequency tone burst stimuli [2] to 4,000 Hz stimuli constituted a fast, simple innocuous functional test with a 100% success in showing SCD in 22 patients with CT verified SCD and the absence of VEMPs in 22 healthy control subjects
Summary
We fully agree with the statement by Noij et al [1] that for the detection of semicircular canal dehiscence (SCD) “High frequency VEMP testing is superior to all other methods described to date. Noij and Rauch state in relation to our 2013 paper: “The high frequency oVEMP study using healthy subjects as the control group described 22 patients with unilateral and 4 patients with bilateral SCD (30 ears in total), while only 22 ears were included in the analysis. It is unclear which ears were excluded and why [31].” p.6 and later “A serious limitation of both published high frequency oVEMP studies was that some ears were excluded from analysis.”. Had the data from these patients been included the number of SCD detections would have increased but the sensitivity and specificity cannot increase further because they cannot exceed 1.0!
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