Journal
MOVEMENT DISORDERS
Volume 24, Issue 13, Pages 1970-1976Publisher
WILEY
DOI: 10.1002/mds.22711
Keywords
Parkinson's disease; hypersomnia; restless legs syndrome; inborn genetic diseases; REM sleep behavior disorder
Categories
Funding
- Institut National de la Sante et de la Recherche Medicale
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Parkin gene mutations cause a juvenile parkinsonism. Patients with these mutations may commonly exhibit REM sleep behaviour disorders, but other sleep problems (insomnia, sleepiness, restless leg syndrome) have problems not been studied. The aim of this study was to evaluate the sleep-wake phenotype in patients with two parkin mutations, compared with patients with idiopathic Parkinson's disease (iPD). Sleep interview and overnight video-polysomnography, followed by multiple sleep latency tests, were assessed in I I consecutive patients with two parkin mutations (aged 35-60 years, from seven families) and I I sex-matched patients with iPD (aged 51-65 years). Sleep complaints in the parkin group included insomnia (73% patients versus 45% in the iPD group), restless leas syndrome (45%, versus none in the iPD group, P = 0.04), and daytime sleepiness (45%, versus 54% in the iPD group). Of the parkin patients, 45% had REM sleep without atonia, but only 9% had a definite REM sleep behavior disorder. All sleep measures were similar in the parkin and iPD groups. Two parkin siblings had a central hypersomnia, characterized by mean daytime sleep latencies of 3 min, no sleep onset REM periods, and normal nighttime sleep. Although the patients with two parkin mutations were young, their sleep phenotype paralleled the clinical and polygraphic sleep recording abnormalities reported in iPD, except that restless legs syndrome was more prevalent and secondary narcolepsy was absent. (C) 2007 Movement Disorder Society
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