[REM Sleep behavioral disorder]

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F Portet1, J Touchon

  • 1Unité de Neurologie comportementale et dégénérative, service de Neurologie B, CHU Gui de Chauliac, 80, rue Auguste Fliche, 34295 Montpellier Cedex, France.

Revue Neurologique
|November 27, 2002
PubMed

Insights

Rapid eye movement sleep behavior disorder (RBD) involves acting out dreams due to lost muscle paralysis during REM sleep. This condition often signals underlying neurodegenerative diseases, particularly those with parkinsonism.

Area of Science:

  • Neurology
  • Sleep Medicine
  • Parasomnias

Context:

  • Rapid eye movement (REM) sleep behavior disorder (RBD) is a parasomnia characterized by the loss of skeletal muscle atonia during REM sleep.
  • This loss results in the enactment of dream content, often leading to violent behaviors and potential injuries.

Purpose:

  • To define Rapid eye movement sleep behavior disorder (RBD) and its clinical presentation.
  • To explore the association between RBD and neurological disorders, especially neurodegenerative conditions with parkinsonism.
  • To discuss the diagnostic criteria and potential predictive value of RBD.

Summary:

  • RBD is diagnosed via polysomnography, which reveals the absence of REM sleep atonia and associated abnormal behaviors.
  • While etiological factors are not fully understood, RBD is linked to drug use, toxic exposures, and frequently precedes symptoms of neurodegenerative diseases like Lewy body dementia.
  • Biochemical underpinnings may involve dopamino-cholinergic and serotonergic pathways.

Impact:

  • Highlights RBD as a significant clinical manifestation requiring polysomnographic diagnosis.
  • Emphasizes the predictive value of RBD for neurodegenerative disorders, particularly parkinsonian syndromes.
  • Underscores the need for further research into the biochemical mechanisms of RBD.

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