期刊
SLEEP
卷 37, 期 3, 页码 431-+出版社
OXFORD UNIV PRESS INC
DOI: 10.5665/sleep.3468
关键词
Parkinson disease; REM sleep behavior disorder; REM sleep behavioral events; somnological marker
资金
- Paracelsus-Elena Klinik, Kassel, Germany
- TEVA Pharma/Lundbeck
- GE Healthcare
- Cephalon
- Medtronic
- TEVA-Pharma
- Desitin
- Boehringer Ingelheim
- Novartis
Objective: To analyze potential markers in sleep for early recognition of neurodegenerative disease in newly diagnosed, unmedicated patients with Parkinson disease (PD) compared to controls. Methods: Videopolysomnography (vPSG) was available in 158 newly diagnosed, unmedicated patients with PD and 110 age-, sex-, and education-matched healthy controls (HC). Rapid eye movement (REM) sleep was analyzed for REM without atonia (RWA) and studied by review of time-synchronized video. Motor behaviors and/or vocalizations in REM sleep with a purposeful component other than comfort moves were identified as REM sleep behavioral events (RBE). Two or more events had to be present to be classified as RBE positive. RBE subjects included rapid eye movement sleep behavior disorder (RBD) and non-RBD subjects based on the presence or absence of RWA > 18.2%. Results: RBE were detected in 81 of 158 patients with de novo PD (51%) and 17 of 110 HC (15%) (P < 0.001). RBD was identified in 40/81 RBE-positive patients with PD (25% of all PD patients) and 2 of 17 RBE-positive HC (2% of all controls). RBE-positive patients showed no specific motor or neuropsychological features compared to RBE-negative patients. Patients with PD and HC with RBE had more REM sleep (P = 0.002) and a higher periodic leg movements in sleep index (P = 0.022) compared to subjects without RBE. Conclusion: This first description of REM sleep behavioral events (RBE) shows it occurs more frequently in patients with de novo Parkinson disease (PD) than in healthy controls and may be an early sign of neurodegeneration and precede rapid eye movement sleep behavior disorder (RBD). There is no specific phenotype of PD associated with newly defined RBE or RBD at this early stage.
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