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Dynamic Digital Biomarkers of Motor and Cognitive Function in Parkinson's Disease
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Dynamic Digital Biomarkers of Motor and Cognitive Function in Parkinson's Disease

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Reduced rapid eye movement sleep latency in patients with Parkinson's disease

V S Kostić1, V Susić, N Covicković-Sternić

  • 1Department of Neurology UCC, School of Medicine, Belgrade, Yugoslavia.

Journal of Neurology
|October 1, 1989
PubMed

Insights

Parkinson's disease patients often experience reduced Rapid Eye Movement (REM) sleep latency. This sleep abnormality is more prevalent in those with co-occurring depression, suggesting a link between REM sleep and mood in Parkinson's.

Area of Science:

  • Neurology
  • Sleep Medicine
  • Psychiatry

Background:

  • Reduced REM sleep latency is a potential biomarker.
  • Its association with depression is established.
  • Idiopathic Parkinson's disease (IPD) is a neurodegenerative disorder affecting motor function.

Purpose of the Study:

  • To investigate REM sleep latency in IPD patients.
  • To determine if reduced REM sleep latency is common in IPD.
  • To explore the relationship between REM sleep latency and depression in IPD.

Main Methods:

  • Measured REM sleep latency in 39 IPD patients.
  • Compared latency between depressed and non-depressed IPD subgroups.
  • Defined reduced REM sleep latency as ≤ 65.0 minutes.

Main Results:

  • 69% of IPD patients exhibited reduced REM sleep latency.
  • The incidence of reduced REM sleep latency was significantly higher in depressed IPD patients compared to non-depressed IPD patients.

Conclusions:

  • Reduced REM sleep latency is a frequent finding in IPD.
  • Depression may exacerbate or be associated with REM sleep abnormalities in Parkinson's disease.
  • REM sleep latency could be a relevant clinical marker in IPD management.

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