Citation

Oudiette D, Leu-Semenescu S, Roze E, Vidailhet M, De Cock VC, Golmard JL, Arnulf I. Mov. Disord. 2012; 27(3): 428-431.

Affiliation

Sleep Disorders Unit, Pitié-Salpêtrière Hospital, APHP, Paris, France; INSERM U975; Pierre et Marie Curie University, Centre de Recherche de l'Institut du Cerveau et de la Moelle Epiniere, UMR-S975, Paris, France.

Copyright

(Copyright © 2012, Movement Disorders Society, Publisher John Wiley and Sons)

DOI

10.1002/mds.24044

PMID

22173891

Abstract

BACKGROUND: The purpose of this study was to determine if there was a common pattern in movements during REM sleep behavior disorder (RBD). METHODS: We blindly compared video-monitored movements during RBD (n = 136 clips) and wakefulness/arousal (n = 53 clips) in patients with Parkinson's disease (n = 29) and without parkinsonism (idiopathic RBD, n = 31; narcolepsy, n = 5). RESULTS: The scorers accurately guessed the sleep/wake stage of 94% of video clips. Compared with wake movements, RBD movements were faster and more often repeated, jerky, and pseudohallucinatory, not self-centered, never associated with tremor, and rarely involved the environment in an appropriate manner. A specific posture of the hand (limp wrist with flexed digits) during grasping movements was evidenced during RBD in 48% of patients, reminiscent of hand-babbling in babies. CONCLUSIONS: These characteristics of movements were found in the 3 conditions (Parkinson's disease, idiopathic RBD, and primary narcolepsy), delineating a common motor signature of RBD. © 2011 Movement Disorder Society.

Language: en