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Sleep disorders in Wilson's disease: a questionnaire study
Zhifei You1, Hui Xu2, Zhonghua Wu2
1Department of Neurology, Taizhou People's Hospital, Taizhou, Jiangsu, China.
Patients with Wilson's disease (WD) experience significant sleep disturbances, including insomnia and excessive daytime sleepiness (EDS). Neurological WD patients show worse sleep quality and a stronger correlation between disease severity and sleep issues.
Area of Science:
- Neurology
- Sleep Medicine
- Genetics
Background:
- Wilson's disease (WD) is a rare genetic disorder of copper metabolism.
- Sleep disturbances are increasingly recognized as a complication in various neurological conditions.
Purpose of the Study:
- To investigate the prevalence and characteristics of sleep disorders in patients with Wilson's disease (WD).
- To identify factors influencing sleep quality and explore potential underlying mechanisms in WD patients.
Main Methods:
- A cross-sectional study involving 150 WD patients (categorized into hepatic, neurologic, and asymptomatic forms) and 150 controls.
- Utilized standardized sleep questionnaires: Parkinson's Disease Sleep Scale (PDSS), Epworth Sleepiness Scale (ESS), and Pittsburgh Sleep Quality Index (PSQI).
Main Results:
- WD patients exhibited poorer sleep quality (higher ESS and PSQI scores, lower PDSS scores) compared to controls.
- The incidence of excessive daytime sleepiness (EDS) was significantly higher in WD patients.
- Neurological WD patients reported worse sleep quality (lower PDSS, higher ESS) and a stronger negative correlation between disease severity (UWDRS) and sleep quality (PDSS).
Conclusions:
- Sleep disturbances are common in WD, manifesting as insomnia, nocturnal motor symptoms, and EDS.
- Neurological WD patients experience more severe sleep impairments.
- Disease severity, particularly in the neurological form, is linked to poorer sleep outcomes in WD.
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