概説および疫学

抄録

　Patients with chronic dizziness often complain of headache; conversely, patients with headache complain of dizziness. Patients with migraine complain of dizziness more often than patients with tension-type headache. Diagnostic criteria for both Meniere disease and vestibular migraine have been reported recently. However, in some cases, it is difficult to clearly distinguish between Meniere's disease and vestibular migraine. In the patients complains symptom, which is described in the diagnostic criteria of Meniere disease and vestibular migraine at the same time may define as Patients complaining of symptoms described in both the diagnostic criteria for Meniere's disease and vestibular migraine may be defined as having vestibular migraine and Meniere's disease overlap syndrome. Here, I would like to describe the etiology of migraine and Meniere's disease. In Japan, migraine is reported to occur at a prevalence of 3.6% in men and 12.9% in women, while Meniere's disease is reported to occur at a prevalence of approximately 2-30 cases per 1,000,000 inhabitants. In otorhinolaryngologic? outpatient practice, Meniere's disease and vestibular migraine are reported to account for about 8%-10% of patients. There are no objective tools yet to clearly diagnose either vestibular migraine or Meniere's disease. Recently, the habituation of middle latency response was reported as a potential objective evaluation tool for the diagnosis of vestibular migraine. Further study is required to identify objective tools for the diagnosis of vestibular migraine and Meniere's disease.