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Brainstem involvement (BSI) has been reported as a major predictive factor for future disability in Multiple Sclerosis (MS). To evaluate whether Cervical Vestibular Evoked Myogenic Potentials (cVEMPs) and Video Head Impulse Test (vHIT) can be used to detect demyelinating lesions in vestibular pathways in MS. Fifty three people with MS and 40 controls were evaluated with Dizziness Handicap Inventory (DHI), vHIT and cVEMP. The median value of DHI in MS group was significantly higher than controls ( p &lt;.001). According to vHIT results, while the results of horizontal canal vestibulo-ocular reflex gain in group with brain stem involvement (gBSI (+)) were significantly different from both controls and group without brain stem involvement (gBSI (−)) ( p = .036 and .024, respectively), results of gBSI (−) were similar with controls ( p = .858). When cVEMP results were examined, mean P1 wave latency in gBSI (+) was significantly longer than controls ( p = .002), but difference between gBSI (−) and controls and gBSI (+) was not statistically significant ( p = .104 and .279, respectively). vHIT and cVEMP can be used in diagnosis and follow-up of people with MS without demyelinating brainstem lesions on MRI.

acta oto-laryngologica

Cervical vestibular evoked myogenic potentials and video head impulse test studies: alternative methods for detecting brainstem involvement in multiple sclerosis