Prospective follow-up study was performed on 41 patients presenting with spontaneous vertigo attack between June 1991 and May 1995. The final diagnoses consisted of 24 vertiginous diseases (unknown cause), 9 vertebro-basilar insufficiency, one multiple cerebral infarction, 3 cerebellar infarction, one cerebellar hemorrhage, 2 vestibular neuritis and one Menieres disease. Investigation of cases presenting with vertigo of shorter duration ranging from seconds to hours suggested that central circulatory disorder was the most important among causes inducing spontaneous transient vertigo at-tack. Severe balance disorder observed even with the patient's eyes open seemed to be a critical finding suggesting cerebellar vascular disorders.
