Rapid Eye Movement Sleep Behavior Disorder in Parkinson's Disease: A Survey-Based Study.

To characterize Parkinson's disease (PD) symptoms based on the presence, onset time, and severity of rapid eye movement sleep behavior disorder (RBD) and their association with impulse control disorders (ICD). RBD is a frequent non-motor symptom in PD, usually described as prodromal. The severity of RBD according to the start time and its relationship with ICD in PD needs further clarification. A survey-based study was performed to determine the presence of RBD symptoms, their severity, and the temporal relationship with the PD onset. The survey included RBD1Q, the Mayo Sleep, and the RBDQ-HK questionnaires and questions about clinical characteristics, including ICD. Only PD patients with care partners spending night hours in the same room were included. 410 PD patients were included: 206 with RBD (50.2%) and 204 non-RBD (49.8%). The PD-RBD patients were younger and their daily levodopa dose was higher than the non-RBD group. Most of these patients developed RBD symptoms after the onset of clinical PD were younger at motor symptom onset and had higher scores in the hallucinations and psychosis subsection of MDS-UPDRS-I. RBD group had a more severe non-motor phenotype, including more ICD than those without RBD, mainly due to higher compulsive eating. In our study, most patients recognized RBD symptoms after the onset of the PD motor symptoms and the clinical features of PD with and without RBD were distinctive, supporting the hypothesis that PD-RBD might represent a variant pattern of neurodegeneration.

Citation

Veronica Bruno, Marta Ruiz-Lopez, Cinthia Terroba-Chambi, Maria Eliza Freitas, Rajasumi Rajalingam, Anna Chang, Susan Helen Fox, Anthony Edward Lang. Rapid Eye Movement Sleep Behavior Disorder in Parkinson's Disease: A Survey-Based Study. The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques. 2023 Sep;50(5):703-709

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PMID: 36017730

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