REM sleep behaviour disorder in essential tremor: A polysomnographic study.

REM sleep behaviour disorder in essential tremor: A polysomnographic study. J Sleep Res. 2020 Apr 23;:e13050 Authors: Bugalho P, Salavisa M, Borbinha C, Fernandes M, Meira B, Barbosa R, Mendonça M Abstract Our objectives were to assess the prevalence of REM sleep behaviour disorder in patients with Essential Tremor, using video-polysomnography and to compare REM sleep behaviour disorder features in essential tremor with those of patients with alpha-synucleinopathies. Forty-nine patients with essential tremor were screened with the REM Sleep Behaviour Disorder Screening Questionnaire. Patients scoring positive and those with spontaneous complaints of REM sleep behaviour disorder (n = 6) underwent video-polysomnography. The clinical features of essential tremor were compared between patients with and without REM sleep behaviour disorder. Video-polysomnography data were compared between patients who had essential tremor and Parkinson's disease with REM sleep behaviour disorder and those with idiopathic REM sleep behaviour disorder. Fourteen patients (23.5%) screened positive for REM sleep behaviour disorder, confirmed by video-polysomnography in five (11.6%). All patients with essential tremor and REM sleep behaviour disorder had rest tremor, compared with 13 (34.2%) in the group with essential tremor but without REM sleep behaviour disorder (p = .009). In video-polysomnography, patients with essential tremor and REM sleep behaviou...
Source: Journal of Sleep Research - Category: Sleep Medicine Authors: Tags: J Sleep Res Source Type: research