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Updated: Jul 1, 2025

Dynamic Digital Biomarkers of Motor and Cognitive Function in Parkinson's Disease
Published on: July 24, 2019
Sleep disorders in Parkinson's disease, an early and multiple problem
Pauline Dodet1,2, Marion Houot3,4,5, Smaranda Leu-Semenescu6,7
1Service des Pathologies du Sommeil et Centre de Référence National des Narcolepsies et Hypersomnies rares, Assistance Publique-Hôpitaux de Paris-Sorbonne (AP-HP-Sorbonne), Hôpital la Pitié-Salpêtrière, Paris, France. pauline.dodet@aphp.fr.
Sleep disorders are common and often combined in early Parkinson's disease (PD). These conditions are linked more to disease progression and physical symptoms than psychological factors.
Area of Science:
- Neurology
- Sleep Medicine
- Clinical Research
Background:
- Sleep disorders are prevalent in Parkinson's disease (PD), but their interplay and clinical associations remain unclear.
- Understanding these sleep disturbances is crucial for managing PD progression and patient well-being.
Purpose of the Study:
- To determine the prevalence and combinations of major sleep disorders in early PD.
- To investigate the clinical and polysomnographic associations of these sleep disorders.
Main Methods:
- Systematic diagnosis of sleep disorders (insomnia, RBD, EDS, RLS, SDB) via medical interview and video-polysomnography.
- Inclusion of 162 early PD participants and 58 healthy controls from the ICEBERG cohort.
- Comprehensive assessment of demographic, clinical, therapeutic, and polysomnographic data.
Main Results:
- 71% of early PD patients experienced sleep disorders, with half having multiple conditions.
- Insomnia (41%), REM sleep behavior disorder (RBD) (25%), and excessive daytime sleepiness (EDS) (25%) were most common.
- Sleep disorder frequency correlated with disease duration and dysautonomia; associations varied by disorder type.
Conclusions:
- Sleep disturbances are frequent and often co-occur in early Parkinson's disease.
- The determinants of these sleep disorders appear more rooted in organic disease processes than psychological factors.
- Further research into the specific mechanisms and management strategies for sleep disorders in PD is warranted.
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