摘要
Abstract
The onset of acute vestibular syndrome (AVS) is characterized by rapid permanent vertigo, accompanying nausea, vomiting, spontaneous nystagmus, unsteady gait and intolerant head motion, these clinical symptoms last for more than 24 hours, the majority of AVS patients suffer for several days or weeks. Central AVS often originates from vascular causes, most of which are posterior circulation ischemic stroke. Even some patients with brain stem and cerebellar infarction present acute isolated vertigo, which is extremely challenging for diagnosis. With the development of researches about vestibular and eye movement physiology mechanism, bedside examination including vestibular, eye movement and posture balance system has become increasingly important. In addition to conventional neurology and otology examinations, nystagmus evaluation, which is based on the vestibular-eye reflex, contributes to rapid diagnosis of central AVS among vertigo patients. The present study elucidates the central AVS and nystagmus characteristics.关键词
中枢/眩晕/急性前庭综合征/后循环梗死/眼震Key words
Central/Vertigo/Acute vestibular syndrome/Posterior circulation infarction/Nystagmus
