Sleep medicine · 2013
Sleep bruxism and oromandibular myoclonus in rapid eye movement sleep behavior disorder: a preliminary report.
Сравнительное исследованиеСтатьяНазвание и аннотация: Перевод пока не подготовлен
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Abe Susumu, Gagnon Jean-François, Montplaisir Jacques Y, Postuma Ronald B, Rompré Pierre H, Huynh Nelly T, Kato Takafumi, Kawano Fumiaki, Lavigne Gilles J
Аннотация
OBJECTIVE: We aimed to compare rhythmic masticatory muscle activity typical of sleep bruxism and oromandibular myoclonus (OMM) during rapid eye movement (REM) sleep in patients with idiopathic REM sleep behavior disorder (iRBD) and in Parkinson disease (PD) patients with RBD (PD-RBD).
METHODS: Sleep polygraphic data were collected from 9 age-matched controls and 28 patients (mean±standard error of the mean, 66.0±1.7 y) with a clinical and sleep laboratory diagnosis of RBD. Patients were divided into two groups: 13 patients with iRBD and 15 patients with PD-RBD. Rhythmic masticatory muscle activity, a marker of sleep bruxism, and OMM were scored blind to subject's diagnosis from jaw electromyographic recordings during sleep.
RESULTS: The rhythmic masticatory muscle activity index was significantly higher during REM sleep in iRBD subjects compared to controls (P<.01) and was significantly higher during non-REM (NREM) sleep in both subject groups compared to controls (P < or = .03). A positive sleep laboratory diagnosis of sleep bruxism was made in 25% of all patients. In iRBD, patients had more OMM during REM sleep than controls (2.4 times higher; P=.01).
CONCLUSION: In the presence of a high frequency of rhythmic masticatory muscle activity during REM sleep, RBD may be suspected and further neurologic assessment is recommended.
METHODS: Sleep polygraphic data were collected from 9 age-matched controls and 28 patients (mean±standard error of the mean, 66.0±1.7 y) with a clinical and sleep laboratory diagnosis of RBD. Patients were divided into two groups: 13 patients with iRBD and 15 patients with PD-RBD. Rhythmic masticatory muscle activity, a marker of sleep bruxism, and OMM were scored blind to subject's diagnosis from jaw electromyographic recordings during sleep.
RESULTS: The rhythmic masticatory muscle activity index was significantly higher during REM sleep in iRBD subjects compared to controls (P<.01) and was significantly higher during non-REM (NREM) sleep in both subject groups compared to controls (P < or = .03). A positive sleep laboratory diagnosis of sleep bruxism was made in 25% of all patients. In iRBD, patients had more OMM during REM sleep than controls (2.4 times higher; P=.01).
CONCLUSION: In the presence of a high frequency of rhythmic masticatory muscle activity during REM sleep, RBD may be suspected and further neurologic assessment is recommended.