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Mahajan A, Rosenthal LS, Gamaldo C, et al. REM Sleep Behavior and Motor Findings in Parkinson's Disease: A Cross-sectional Analysis. Tremor Other Hyperkinet Mov (N Y). 2014;4:245doi: 10.7916/D84B2ZDF.
Mahajan, A., Rosenthal, L. S., Gamaldo, C., Salas, R. E., Pontone, G. M., McCoy, A., Umeh, C., & Mari, Z. (2014). REM Sleep Behavior and Motor Findings in Parkinson's Disease: A Cross-sectional Analysis. Tremor and other hyperkinetic movements (New York, N.Y.), 4245. https://doi.org/10.7916/D84B2ZDF
Mahajan, Abhimanyu, et al. "REM Sleep Behavior and Motor Findings in Parkinson's Disease: A Cross-sectional Analysis." Tremor and other hyperkinetic movements (New York, N.Y.) vol. 4 (2014): 245. doi: https://doi.org/10.7916/D84B2ZDF
Mahajan A, Rosenthal LS, Gamaldo C, Salas RE, Pontone GM, McCoy A, Umeh C, Mari Z. REM Sleep Behavior and Motor Findings in Parkinson's Disease: A Cross-sectional Analysis. Tremor Other Hyperkinet Mov (N Y). 2014 Jun 23;4:245. doi: 10.7916/D84B2ZDF. eCollection 2014. PMID: 25009765; PMCID: PMC4070091.
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Tremor Other Hyperkinet Mov (N Y). 2014 Jun 23;4:245. doi: 10.7916/D84B2ZDF. eCollection 2014.

REM Sleep Behavior and Motor Findings in Parkinson's Disease: A Cross-sectional Analysis.

Tremor and other hyperkinetic movements (New York, N.Y.)

Abhimanyu Mahajan, Liana S Rosenthal, Charlene Gamaldo, Rachel E Salas, Gregory M Pontone, Arita McCoy, Chizoba Umeh, Zoltan Mari

Affiliations

  1. Department of Neurology Johns Hopkins University, Baltimore, MD, USA.
  2. Department of Psychiatry and Behavioral Sciences Johns Hopkins University, Baltimore, MD, USA.

PMID: 25009765 PMCID: PMC4070091 DOI: 10.7916/D84B2ZDF

Abstract

BACKGROUND: Parkinson's disease (PD) represents a major public health challenge that will only grow in our aging population. Understanding the connection between PD and associated prodromal conditions, such as rapid eye movement sleep behavioral disorder (RBD), is critical to identifying prevention strategies. However, the relationship between RBD and severity of motor findings in early PD is unknown. This study aims to examine this relationship.

METHODS: The study population consisted of 418 PD patients who completed the Movement Disorders Society-United Parkinson's Disease Rating Scale (MDS-UPDRS) and rapid eye movement sleep (REM) disorder questionnaires at the baseline visit of the Michael J. Fox's Parkinson's Progression Markers Initiative (PPMI). Cross-sectional analysis was carried out to assess the association between REM Sleep Behavior Screening Questionnaire score and MDS UPDRS-3 (motor) score categories. Correlation with a higher score category was described as "worse motor findings". A score of 5 on the REM disorder questionnaire was defined as predictive of RBD.

RESULTS: Out of the 418 PD patients, 113 (27.0%) had RBD. With univariate logistic regression analysis, individuals with scores predictive of RBD were 1.66 times more likely to have worse motor findings (p = 0.028). Even with age, gender, and Geriatric Depression Scale scores taken into account, individuals with scores predictive of RBD were 1.69 times more likely to have worse motor findings (p = 0.025).

DISCUSSION: PD patients with RBD symptoms had worse motor findings than those unlikely to have RBD. This association provides further evidence for the relationship between RBD and PD.

Keywords: Movement Disorders Society-United Parkinson's Disease Rating Scale; Parkinson's disease; motor findings; rapid eye movement sleep

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