J Korean Neurol Assoc.
2004 Oct;22(5):548-551.
Acquired Periodic Alternating Nystagmus
- Affiliations
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- 1Department of Neurology, Ulsan University College of Medicine, Seoul, Korea. salee@amc.seoul.kr
Abstract
- Periodic alternating nystagmus is a rare form of horizontal jerk nystagmus characterized by a periodical reversal in the direction of nystagmus. It implies a cerebellar disorder or lesions involving the vestibulocerebellar connections. We report a patient with an acquired form of periodic alternating nystagmus associated with meningoencephalitis. Its waveform characteristics were demonstrated by a video-nystagmogram. The brainstem lesions in our patient were thought to be responsible for her nystagmus.
