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. 2022 Oct;22(10):657-674.
doi: 10.1007/s11910-022-01226-2. Epub 2022 Aug 22.

Polysomnographic Predictors of Sleep, Motor, and Cognitive Dysfunction Progression in Parkinson's Disease

Femke Dijkstra  1   2   3 , Ilse de Volder  4   5   6   7 , Mineke Viaene  8 , Patrick Cras  4   5   9 , David Crosiers  4   5   9
Affiliations

Polysomnographic Predictors of Sleep, Motor, and Cognitive Dysfunction Progression in Parkinson's Disease

Femke Dijkstra et al. Curr Neurol Neurosci Rep. 2022 Oct.

Abstract

Purpose of review: Sleep disturbances are an important nonmotor feature of Parkinson's disease (PD) that can cause polysomnographic (PSG) alterations. These alterations are already present in early PD and may be associated with a specific disease course. This systematic review describes the role of PSG variables as predictors of sleep dysfunction, motor and cognitive dysfunction progression in PD.

Recent findings: Nineteen longitudinal cohort studies were included. Their main findings were that (1) REM sleep behavioral events, REM sleep without atonia (RSWA), and electroencephalography (EEG) changes (mainly microsleep instability) are predictors of the development of REM sleep behavior disorder (RBD); (2) RBD, RSWA, and lower slow-wave sleep energy predict motor progression; (3) RBD, EEG slowing, and sleep spindles changes are predictors of cognitive deterioration; and (4) OSA is associated with severe motor and cognitive symptoms at baseline, with inconsistent findings on the effect of continuous positive airway pressure (CPAP) therapy for these symptoms. The results of our systematic review support a role of the video-PSG in disease progression prediction in PD and its usefulness as a biomarker. However, future studies are needed to investigate whether treatment of these PSG abnormalities and sleep disturbances may have a neuroprotective effect on disease progression.

Keywords: Cognitive dysfunction; Motor progression; Parkinson’s disease; Polysomnography; Sleep dysfunction.

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References

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