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Quantitative sudomotor abnormalities in clinically isolated rapid eye movement sleep behavior disorder

Post-ganglionic sudomotor abnormalities are common in Parkinson's disease (PD), however data in clinically isolated REM sleep behavior disorder (iRBD) are limited. To determine the prevalence of sudomotor abnormalities in a cohort of patients with iRBD. We performed a retrospective review of pa...

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Bibliographic Details
Published in:Autonomic neuroscience 2020-03, Vol.224, p.102645-102645, Article 102645
Main Authors: Zitser, J., Muppidi, S., Sinn, D.I., Jaradeh, S., Miglis, M.G.
Format: Article
Language:English
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Summary:Post-ganglionic sudomotor abnormalities are common in Parkinson's disease (PD), however data in clinically isolated REM sleep behavior disorder (iRBD) are limited. To determine the prevalence of sudomotor abnormalities in a cohort of patients with iRBD. We performed a retrospective review of patients seen in our autonomic clinic who underwent testing with the quantitative sudomotor axon reflex test (QSART). We identified three groups for comparison: 1.) iRBD, 2.) PD with RBD (PDwRBD) 3.) PD without RBD (PDwoRBD). PDwRBD (n = 27) patients demonstrated the greatest sudomotor abnormalities (sudomotor CASS 1.44 ± 1.24), followed by PDwoRBD (n = 23, 0.57 ± 0.5) and iRBD (n = 20, 0.55 ± 0.94) (p = 0.015). Twenty percent of patients with iRBD had an abnormal result, compared to 67% PDwRBD and 35% PDwoRBD. Sudomotor abnormalities are common in patients with iRBD, supporting the concept that peripheral autonomic impairment occurs early in the course of disease.
ISSN:1566-0702
1872-7484
DOI:10.1016/j.autneu.2020.102645