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Electronystagmographic findings in cerebellar dysfunction. 1976

A Katsarkas, and B R Younge

Ocular dysmetria is seldom mentioned in the neurootologic literature as an electronystagmographic (ENG) abnormality. For the last two years, we found ocular dysmetria on 38 cases out of 1,879 ENG recordings. Cerebellar dysfunction was the most apparent cause in 13 out of 21 cases examined by us. The group of unilateral hypermetria showed some other ENG abnormalities like positional nystagmus, post-caloric directional preponderance, failure of fixation suppression of post-caloric nystagmus (FFS), more scattered distribution of quick phase amplitudes of post-caloric and optokinetic nystagmus on the side of hypermetria. We wonder whether this symptomatology, or at least part of it, is due to dysfunction of the flocculo-nodular lobe of the cerrebellum.

UI MeSH Term Description Entries
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D002526 Cerebellar Diseases Diseases that affect the structure or function of the cerebellum. Cardinal manifestations of cerebellar dysfunction include dysmetria, GAIT ATAXIA, and MUSCLE HYPOTONIA. Cerebellar Dysfunction,Cerebellum Diseases,Cerebellar Disorders,Cerebellar Syndromes,Cerebellar Disease,Cerebellar Disorder,Cerebellar Dysfunctions,Cerebellar Syndrome,Cerebellum Disease,Disease, Cerebellar,Disease, Cerebellum,Disorder, Cerebellar,Dysfunction, Cerebellar,Syndrome, Cerebellar
D004584 Electronystagmography Recording of nystagmus based on changes in the electrical field surrounding the eye produced by the difference in potential between the cornea and the retina. Electronystagmographies
D004585 Electrooculography Recording of the average amplitude of the resting potential arising between the cornea and the retina in light and dark adaptation as the eyes turn a standard distance to the right and the left. The increase in potential with light adaptation is used to evaluate the condition of the retinal pigment epithelium. EOG,Electrooculograms,Electrooculogram
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly

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