片頭痛関連のめまい

抄録

Introduction: The importance of the relationship between vertigo and headache, especially migraine, has been recognized. Vertigo has been found to be three times more common in patients with migraine than in controls, and migraine is found at a prevalence of 30%-50% in patients presenting with vertigo. Several authors have proposed different diagnostic criteria for defining migrainous vertigo and vestibular migraine. In this study, we attempted to clarify the current situation of migraine-related dizziness at our institute. Subjects and Methods: A retrospective review of 9 patients with migraine-related vertigo who visited our institute was conducted. We used the diagnostic criteria proposed by Neuhauser (2001). Results: Of the 9 patients, 1 was male and 8 were female; 6 patients had visited a neurosurgeon once, 3 patients had been diagnosed once as having Meniere's disease, although they had normal hearing. Calcium channel blockers, antidepressants, SSRIs (Selective Serotonin Reuptake Inhibitors) and anxiolytics had been prescribed as prophylactic agents. Of the 9 patients, 5 improved with the prophylactic treatment, 2 improved slightly, and 2 showed no change. The patients who showed improvement in the migraine with the prophylactic treatment also showed improvement of their vertigo at the same time. As acute-phase treatment NSAIDs (Non-Steroidal Anti-Inflammatory Drugs) and triptans were prescribed. Three patients had a past history of BPPV (benign paroxysmal positional vertigo). Conclusion: The importance of diagnosis of migrane-associated vertigo was confirmed, since both prophylactic and acute-phase treatment were effective against both migraine and vertigo in these patients. To obtain further evidence for the treatment of migraine-associated vertigo, a more organized study should be conducted. The relationship between BPPV and migraine-associated vertigo should also be investigated in a future study.