1998 年 8 巻 3 号 p. 183-188
15 patients with dizziness who had already undergone antihypertensive therapy, were administered drugs to improve cardiovascular circulation. Particular diseases were not demonstrated by audiometry, vestibular function tests and magnetic resonance imaging. Dizziness of 14 patients disappeared within four weeks after initiation of treatment for cerebrovascular circulatory disorders. At once low frequency hearing loss improved or tended to improve binaurally.
Clincal findings of these patients are summaried below. 1) Dizziness was transient and recurrent, and rotatory or floating sensation was accompanied. 2) Cochlear symptoms, if present, were not related to dizziness. 3) Transient nystagmus was occasionally observed. 4) Directional preponderance was occasionally seen in caloric testing. 5) Bilateral low frequency hearing problem was found.
