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One Case of Downbeat Nystagmus with Compression of Vestibulocochlear Nerve by Vertebral Arteries
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Gyu Cheol Han, Ju Hyoung Lee, Jong Su Ha, Hee Young Hwang, Cheol Wan Park
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J Korean Bal Soc. 2004;3(1):184-186.
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 Abstract
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- A case is reported of downbeat nystagmus associated with compression of the root of vestibulocochlear nerve by
vertebral arteries, which was revealed by magnetic resonance imaging. Chief complain of the patient was positional
vertigo, which aggrevated at left decubitus position. Downbeat nystagmus was increased in left Dix-hall pike test.
Tetsuo et al, reported downbeat nystagmus with compression of dolichoectatic vertebral arteries to the medulla
oblongata and surgical neurovascular decompression of the dolichoectasia reverses the progression of symptoms if
permanent neurologic damage has not already occurred.
Key Words : Vertical nystagmus, Vertebrobasilar dolichoectasia, Vestibulocochlear nerve
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KBS
