Probable RBD is increased in Parkinson's disease but not in essential tremor or restless legs syndrome

Charles Howard Adler, Joseph G. Hentz, Holly A. Shill, Marwan N. Sabbagh, Erika M Driver-Dunckley, Virgilio G H Evidente, Sandra A. Jacobson, Thomas G. Beach, Bradley F Boeve, John Nathaniel Caviness

Research output: Contribution to journalArticle

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Abstract

Objective: Compare the frequency of REM sleep behavior disorder (RBD) and excessive daytime sleepiness (EDS) in Parkinson's disease (PD), restless legs syndrome (RLS), essential tremor (ET), and control subjects. Methods: Subjects enrolled in a longitudinal clinicopathologic study, and when available an informant, completed the Mayo Sleep Questionnaire, which asks "Have you ever been told that you act out your dreams?", and the Epworth Sleepiness Scale (ESS). Results: Probable RBD (based on informant response to the questionnaire) was much more frequent in PD (34/49, 69%, P < 0.001) than in RLS (6/30, 20%), ET (7/53, 13%), or control subjects (23/175, 13%), with an odds ratio of 11 for PD compared to controls. The mean ESS and the number of subjects with an ESS ≥ 10 was higher in PD (29/60, 48%, P < 0.001) and RLS (12/39, 31%, P < 0.001) compared with ET (12/93, 13%) and Controls (34/296, 11%). Conclusions: Probable RBD is much more frequent in PD with no evidence to suggest an increase in either RLS or ET. Given the evidence that RBD is a synucleinopathy, the lack of an increased frequency of RBD in subjects with ET or RLS suggests the majority of ET and RLS subjects are unlikely to be at increased risk for developing PD.

Original languageEnglish (US)
Pages (from-to)456-458
Number of pages3
JournalParkinsonism and Related Disorders
Volume17
Issue number6
DOIs
StatePublished - Jul 2011

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REM Sleep Behavior Disorder
Essential Tremor
Restless Legs Syndrome
Parkinson Disease
Longitudinal Studies
Sleep
Odds Ratio

Keywords

  • Essential tremor
  • Excessive daytime sleepiness
  • Parkinson's disease
  • REM sleep behavior disorder
  • Restless legs syndrome

ASJC Scopus subject areas

  • Geriatrics and Gerontology
  • Clinical Neurology
  • Neurology

Cite this

Probable RBD is increased in Parkinson's disease but not in essential tremor or restless legs syndrome. / Adler, Charles Howard; Hentz, Joseph G.; Shill, Holly A.; Sabbagh, Marwan N.; Driver-Dunckley, Erika M; Evidente, Virgilio G H; Jacobson, Sandra A.; Beach, Thomas G.; Boeve, Bradley F; Caviness, John Nathaniel.

In: Parkinsonism and Related Disorders, Vol. 17, No. 6, 07.2011, p. 456-458.

Research output: Contribution to journalArticle

Adler, Charles Howard ; Hentz, Joseph G. ; Shill, Holly A. ; Sabbagh, Marwan N. ; Driver-Dunckley, Erika M ; Evidente, Virgilio G H ; Jacobson, Sandra A. ; Beach, Thomas G. ; Boeve, Bradley F ; Caviness, John Nathaniel. / Probable RBD is increased in Parkinson's disease but not in essential tremor or restless legs syndrome. In: Parkinsonism and Related Disorders. 2011 ; Vol. 17, No. 6. pp. 456-458.
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abstract = "Objective: Compare the frequency of REM sleep behavior disorder (RBD) and excessive daytime sleepiness (EDS) in Parkinson's disease (PD), restless legs syndrome (RLS), essential tremor (ET), and control subjects. Methods: Subjects enrolled in a longitudinal clinicopathologic study, and when available an informant, completed the Mayo Sleep Questionnaire, which asks {"}Have you ever been told that you act out your dreams?{"}, and the Epworth Sleepiness Scale (ESS). Results: Probable RBD (based on informant response to the questionnaire) was much more frequent in PD (34/49, 69{\%}, P < 0.001) than in RLS (6/30, 20{\%}), ET (7/53, 13{\%}), or control subjects (23/175, 13{\%}), with an odds ratio of 11 for PD compared to controls. The mean ESS and the number of subjects with an ESS ≥ 10 was higher in PD (29/60, 48{\%}, P < 0.001) and RLS (12/39, 31{\%}, P < 0.001) compared with ET (12/93, 13{\%}) and Controls (34/296, 11{\%}). Conclusions: Probable RBD is much more frequent in PD with no evidence to suggest an increase in either RLS or ET. Given the evidence that RBD is a synucleinopathy, the lack of an increased frequency of RBD in subjects with ET or RLS suggests the majority of ET and RLS subjects are unlikely to be at increased risk for developing PD.",
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AU - Hentz, Joseph G.

AU - Shill, Holly A.

AU - Sabbagh, Marwan N.

AU - Driver-Dunckley, Erika M

AU - Evidente, Virgilio G H

AU - Jacobson, Sandra A.

AU - Beach, Thomas G.

AU - Boeve, Bradley F

AU - Caviness, John Nathaniel

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AB - Objective: Compare the frequency of REM sleep behavior disorder (RBD) and excessive daytime sleepiness (EDS) in Parkinson's disease (PD), restless legs syndrome (RLS), essential tremor (ET), and control subjects. Methods: Subjects enrolled in a longitudinal clinicopathologic study, and when available an informant, completed the Mayo Sleep Questionnaire, which asks "Have you ever been told that you act out your dreams?", and the Epworth Sleepiness Scale (ESS). Results: Probable RBD (based on informant response to the questionnaire) was much more frequent in PD (34/49, 69%, P < 0.001) than in RLS (6/30, 20%), ET (7/53, 13%), or control subjects (23/175, 13%), with an odds ratio of 11 for PD compared to controls. The mean ESS and the number of subjects with an ESS ≥ 10 was higher in PD (29/60, 48%, P < 0.001) and RLS (12/39, 31%, P < 0.001) compared with ET (12/93, 13%) and Controls (34/296, 11%). Conclusions: Probable RBD is much more frequent in PD with no evidence to suggest an increase in either RLS or ET. Given the evidence that RBD is a synucleinopathy, the lack of an increased frequency of RBD in subjects with ET or RLS suggests the majority of ET and RLS subjects are unlikely to be at increased risk for developing PD.

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