Do visual-evoked potentials and spatiotemporal contrast sensitivity help to distinguish idiopathic Parkinson's disease and multiple system atrophy?
Identifieur interne : 004426 ( PubMed/Curation ); précédent : 004425; suivant : 004427Do visual-evoked potentials and spatiotemporal contrast sensitivity help to distinguish idiopathic Parkinson's disease and multiple system atrophy?
Auteurs : I. Delalande [France] ; J C Hache ; G. Forzy ; M. Bughin ; J. Benhadjali ; A. DestéeSource :
- Movement disorders : official journal of the Movement Disorder Society [ 0885-3185 ] ; 1998.
English descriptors
- KwdEn :
- Aged, Contrast Sensitivity (physiology), Dopamine (physiology), Evoked Potentials, Visual (physiology), Female, Humans, Male, Middle Aged, Multiple System Atrophy (diagnosis), Multiple System Atrophy (physiopathology), Orientation (physiology), Pattern Recognition, Visual (physiology), Photic Stimulation, Reaction Time (physiology), Retina (physiopathology), Space Perception (physiology), Visual Pathways (physiopathology).
- MESH :
- chemical , physiology : Dopamine.
- diagnosis : Multiple System Atrophy.
- physiology : Contrast Sensitivity, Evoked Potentials, Visual, Orientation, Pattern Recognition, Visual, Reaction Time, Space Perception.
- physiopathology : Multiple System Atrophy, Retina, Visual Pathways.
- Aged, Female, Humans, Male, Middle Aged, Photic Stimulation.
Abstract
A large number of patients with Parkinson's disease were reported to have abnormal visual-evoked potentials (VEPs) and spatiotemporal contrast sensitivity (STCS) suggesting dopaminergic deficiency in the visual pathway, probably the retina. Until now, VEPs and STCS have not been studied in multiple system atrophy (MSA). We investigated 12 patients with idiopathic Parkinson's disease (IPD) and 12 patients with MSA. The age medians were 64.5 years for IPD and 63.5 years for MSA. None of the patients showed any ocular disease that could interfere with the results. Checkboard VEPs and STCS measurements to horizontal sinusoidal gratings were evaluated. Statistical analysis was performed, including Student's t test and two- or three-way analysis of variance. A significant interocular difference in spatial contrast sensitivity was observed in IPD, which was not present in MSA. VEPs were not delayed in MSA, whereas latency of the major component and the second negative deflection were increased in IPD. VEPs and STCS measurements might provide useful help for distinguishing IPD from MSA.
DOI: 10.1002/mds.870130312
PubMed: 9613735
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<front><div type="abstract" xml:lang="en">A large number of patients with Parkinson's disease were reported to have abnormal visual-evoked potentials (VEPs) and spatiotemporal contrast sensitivity (STCS) suggesting dopaminergic deficiency in the visual pathway, probably the retina. Until now, VEPs and STCS have not been studied in multiple system atrophy (MSA). We investigated 12 patients with idiopathic Parkinson's disease (IPD) and 12 patients with MSA. The age medians were 64.5 years for IPD and 63.5 years for MSA. None of the patients showed any ocular disease that could interfere with the results. Checkboard VEPs and STCS measurements to horizontal sinusoidal gratings were evaluated. Statistical analysis was performed, including Student's t test and two- or three-way analysis of variance. A significant interocular difference in spatial contrast sensitivity was observed in IPD, which was not present in MSA. VEPs were not delayed in MSA, whereas latency of the major component and the second negative deflection were increased in IPD. VEPs and STCS measurements might provide useful help for distinguishing IPD from MSA.</div>
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<Abstract><AbstractText>A large number of patients with Parkinson's disease were reported to have abnormal visual-evoked potentials (VEPs) and spatiotemporal contrast sensitivity (STCS) suggesting dopaminergic deficiency in the visual pathway, probably the retina. Until now, VEPs and STCS have not been studied in multiple system atrophy (MSA). We investigated 12 patients with idiopathic Parkinson's disease (IPD) and 12 patients with MSA. The age medians were 64.5 years for IPD and 63.5 years for MSA. None of the patients showed any ocular disease that could interfere with the results. Checkboard VEPs and STCS measurements to horizontal sinusoidal gratings were evaluated. Statistical analysis was performed, including Student's t test and two- or three-way analysis of variance. A significant interocular difference in spatial contrast sensitivity was observed in IPD, which was not present in MSA. VEPs were not delayed in MSA, whereas latency of the major component and the second negative deflection were increased in IPD. VEPs and STCS measurements might provide useful help for distinguishing IPD from MSA.</AbstractText>
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