Abstract

Patients w ith m igraine frequently have hypersensitivity to light, sound, and smell. In addition to these hallmark features of m igraine, patients often describe vestibular complaints ranging from frank vertigo to less specific symptoms of dizziness, unsteadiness, and head m otion intolerance. O ver the last two decades a number of studies have stressed the association of m igraine with vestibular and ocular m otor disorders. M igraine m ay be a m ost common cause of various forms of episodic vertigo, but definite diagnostic criteria for m igraine related vertigo are still lacking. A review of the literature on this chapter demonstrates the difficulties in pinpointing migraine-related vertigo as a clearly defined entity. The interrelations of migraine and dizziness can be classified into seven categories: ① vertigo as an aura of m igraine-basilar type m igraine, ② episodic vertigo attack w ithout typical temporal relationship to migraine headache - m igraine equivalent, ③ Vertigo/dizziness during m igraine attack, ④ susceptibility of motion sickness in m igraine patients, ⑤ CACNA1A gene m utation and migraine-familial hemiplegic migraine, episodic ataxia type 2, ⑥ well defined vertigo syndromes that are not caused by migraine but show a statistical association w ith m igraine-Meniere disease, BPPV, ⑦ non-vestibular dizziness in m igraine patients-psychiatric comorbidity, antim igraine m edication. Each part of categories will be discussed. Korean Journal of Headache 7(1):12-22, 2006