Res Vestib Sci.
2009 Jun;8(1):49-51.
Periodic Alternating Nystagmus in Vestibulocochlear Disorder
- Affiliations
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- 1Department of Neurology, Chungnam National University, College of Medicine, Chungnam National University Hospital, Chungnam, Korea.
- 2Department of Neurology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Bundang, Korea.
Abstract
- Periodic alternating nystagmus (PAN) is characterized by horizontal nystagmus that reverses direction periodically. PAN can occur in both congenital and acquired conditions. We report a 58-year old man with peripheral vertigo and hearing impairment showing PAN in darkness.
