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Background and Objectives:The clinical association between migraine and vestibular symptoms has been indicated in many studies and it is believed that migraine-associated vertigo is one of the most common Subjects and Method:We investigated the nature of vestibular and migrainous symptoms of 26 patients suffering vertigo associated with migraine and their responses to antimigrainous medications. Neurotologic tests such as oculomotor tests, caloric test, and audiometry were performed between attacks. Results:A marked female predominance was found. The duration of rotational (77% ) and/or to-and-fro vertigo (23% ) lasted from a few seconds to several hours or, less frequently, even days. We found that patients showed vestibular abnormalities in central and peripheral types. In the symptom-free interval, 31% of the ic latency and horizontal saccadic pursuit. On the other hand, 15% showed unilateral weakness in the caloric test and 15% showed positive results in the head thrust tests. Overall, 85% of patients experienced resolution or significant reduction of their attacks of vertigo with medication. Conclusion:Most patients with migraine-associated vertigo showed normal results on the vestibular tests and responded well to preventive medication. Migraine-associated vertigo caused various clinical manifestations and there should be relevant diferential diagnosis for epiodic vertigo. (Korean J Otolaryngol 2007 ;50 :209-14)