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Primary Position Vertical Nystagmus and Cerebellar Ataxia
Jorge C. Kattah, MD;
Martin P. Kolsky, MD;
John Guy, MD;
Desmond O'Doherty, MD
Arch Neurol. 1983;40(5):310-314.
Abstract
Hereditary cerebellar ataxia was evaluated clinically and by electro-oculography in three members of a family. There was no clinical evidence of extracerebellar dysfunction although quantitative eye movement analysis did show internuclear ophthalmoparesis and slow saccadic velocity suggestive of brainstem dysfunction. In addition, oculomotor examination showed primary position vertical nystagmus in all patients. Other findings were in accord with previous reports of cerebellar-related oculomotor dysfunction.
Author Affiliations
From the Department of Neurology, Division of Neuro-ophthalmology (Drs Kattah, Kolsky, and O'Doherty), and the Department of Ophthalmology (Drs Kolsky and Guy), Georgetown University Medical School and Washington (DC) Hospital Center.
Footnotes
Accepted for publication June 30, 1982.
Reprint requests to Department of Neurology, Georgetown University School of Medicine, 3800 Reservoir Rd, Washington, DC 20007 (Dr Kattah).
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