Periodic alternating nystagmus and rebound nystagmus in spinocerebellar ataxia type 6. |
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| Authors: | Takao Hashimoto Osamu Sasaki Kunihiro Yoshida Yo-ichi Takei Shu-ichi Ikeda |
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| Institution: | Third Department of Medicine, Shinshu University School of Medicine, Asahi, Matsumoto, Japan. takahhh@hsp.md.shinsu-u.ac.jp |
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| Abstract: | We report on a family with ataxia type 6 (SCA6) showing peculiar oculomotor symptoms. The proband presented with periodic alternating nystagmus (PAN), and her 2 brothers had rebound nystagmus and gaze-evoked nystagmus. They carried the identical mutation (the number of expanded CAG repeat, 24) in the CACNA1A gene. The intrafamilial variability of oculomotor symptoms may be ascribed to factors other than CAG repeat expansion size in SCA6. |
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| Keywords: | periodic alternating nystagmus rebound nystagmus SCA6 |
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