False perception of visual verticality in multiple sclerosis

We wanted to investigate to what extent patients with multiple sclerosis (MS), not complaining of dizziness or disequilibrium, may have problems with the estimation of gravidity. Therefore, we studied the static ‘subjective visual vertical’ (SVV), a test that is thought to reflect mainly otolith fun...

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Bibliographic Details
Published in:	European journal of neurology Vol. 14; no. 2; pp. 228 - 232
Main Authors:	Crevits, L., Venhovens, J., Vanoutrive, J., Debruyne, J.
Format:	Journal Article
Language:	English
Published:	Oxford, UK Blackwell Publishing Ltd 01-02-2007
Subjects:	Adult Aged disability Disability Evaluation Female Humans Male Middle Aged multiple sclerosis Multiple Sclerosis, Chronic Progressive - diagnosis Multiple Sclerosis, Chronic Progressive - physiopathology Multiple Sclerosis, Relapsing-Remitting - diagnosis Multiple Sclerosis, Relapsing-Remitting - physiopathology otolith dysfunction Otolithic Membrane - physiopathology Perceptual Distortion screening subjective visual vertical Vestibular Function Tests Visual Fields Visual Perception
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Summary:	We wanted to investigate to what extent patients with multiple sclerosis (MS), not complaining of dizziness or disequilibrium, may have problems with the estimation of gravidity. Therefore, we studied the static ‘subjective visual vertical’ (SVV), a test that is thought to reflect mainly otolith function. Further, we correlated SVV measures with the degree of disease disability. A group of outpatients was compared with a group of age‐ and sex‐matched healthy volunteers. The deviations of SVV in patients were significantly larger than in controls. Overall, SVV was abnormal in 48% of individual patients. There was a significant correlation between SVV and the global disability score. The same held true for correlation with the subscores of brainstem and cerebellar complaints. The SVV test proved to be a simple method that was well tolerated by the patients. It can be considered a complementary otoneurological tool for evaluating MS patients. Further, these findings suggest that misperception of the verticality parallels the disability in MS patients.
Bibliography:	istex:8D8D403CFFAE25A510C70EEBE6A7C423B7D135FE ArticleID:ENE1636 ark:/67375/WNG-VM5WLR38-L ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1351-5101 1468-1331 1471-0552
DOI:	10.1111/j.1468-1331.2006.01636.x