Abstract
BackgroundThe aim of this prospective study was to examine the link between Meniere’s disease and migrainous vertigo and assess the value of common non-invasive otoneurologic tests in the differential diagnosis.Material and MethodsA total of 38 patients with definite Meniere’s disease (MD), 24 with non Meniere’s vertigo, dizziness or unsteadiness (control group), and 10 patients with definite Vestibular Migraine (VM) underwent a full otoneurological screening which included an audiometric examination, extratympanic electrocochleography (ET – ECochG), cervical vestibular evoked myogenic potentials (cVEMPs) and videonystagmography with bithermal stimulation.ResultsNone VM patient presented with abnormal ECochG finding, in contrary to 61% of MD patients, and 4% in the control group. The difference was statistically significant (p<0.001). Pathological cVEMP results and unilateral weakness in caloric stimulation were found in 30% and 10% in VM population, whereas in 52.6% and 55.3% in MD. Again, the difference was statistically significant (p<0.001).ConclusionsThe results indicate that certain vestibular test – as ECochG – could often help in the differentiation between VM and MD patients, especially in atypical cases. Last but not least, it seems that both diseases have a common electrophysiological background according to the similar cVEMP pathological findings.
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