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Sleep disorders in Wilson's disease.

S Nevsimalova1, J Buskova, R Bruha

  • 1Department of Neurology, Charles University, 1st Faculty of Medicine and General Teaching Hospital, Prague, Czech Republic. snevsi@LF1.cuni.cz

European Journal of Neurology
|June 17, 2010
PubMed
Summary
This summary is machine-generated.

Patients with Wilson's disease (WD) frequently experience sleep disturbances, including excessive daytime sleepiness and poor sleep quality. These issues may indicate altered REM sleep function in WD patients.

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Area of Science:

  • Neurology
  • Sleep Medicine
  • Genetics

Background:

  • Wilson's disease (WD) is an inherited disorder characterized by copper accumulation and neurodegeneration, often linked to dopaminergic deficits.
  • Sleep disturbances are increasingly recognized as a significant co-morbidity in various neurological conditions.

Purpose of the Study:

  • To investigate the prevalence and nature of sleep co-morbidities in patients with Wilson's disease.
  • To differentiate sleep issues using both subjective questionnaires and objective sleep examinations.

Main Methods:

  • Fifty-five WD patients (categorized by hepatic, neurological, or asymptomatic forms) and 55 controls completed sleep habit questionnaires, Epworth Sleepiness Scale (ESS), and Rapid Eye Movement (REM) Behaviour Disorder Screening Questionnaire (RBD-SQ).
  • Objective sleep assessments, including polysomnography and Multiple Sleep Latency Test (MSLT), were performed on a subset of WD patients and controls.

Main Results:

  • WD patients reported significantly more daytime napping, tiredness, excessive daytime sleepiness, cataplexy-like episodes, and poorer nocturnal sleep compared to controls.
  • Objective findings revealed lower total sleep time, reduced sleep efficiency, increased wakefulness, and altered non-rapid eye movement (NREM) sleep stages in WD patients.
  • A notable proportion of WD patients exhibited short or borderline MSLT values, suggesting potential sleep-wake regulatory dysfunction independent of other sleep pathologies.

Conclusions:

  • Sleep disturbances are common in Wilson's disease across all clinical forms.
  • The observed spectrum of sleep-wake symptoms suggests a potential involvement of altered REM sleep function in the pathophysiology of WD.