期刊
JOURNAL OF THE AMERICAN GERIATRICS SOCIETY
卷 56, 期 11, 页码 2076-2081出版社
BLACKWELL PUBLISHING
DOI: 10.1111/j.1532-5415.2008.01934.x
关键词
dementia; Alzheimer's disease; obstructive sleep apnea; CPAP; cognitive impairment
资金
- NIH [M01 RR00827]
- NIA [AG08415, P50 AG05131, R01 AG028827]
- Research Service of the Veterans Affairs San Diego Healthcare System
To examine whether treatment of obstructive sleep apnea (OSA) with continuous positive airway pressure (CPAP) in patients with Alzheimer's disease (AD) results in better cognitive function. Randomized double-blind placebo-controlled trial. Participants were randomized to therapeutic CPAP for 6 weeks or placebo CPAP for 3 weeks followed by therapeutic CPAP for 3 weeks. General clinical research center. Fifty-two men and women with mild to moderate AD and OSA. CPAP. A complete neuropsychological test battery was administered before treatment and at 3 and at 6 weeks. A comparison of subjects randomized to 3 weeks of therapeutic versus placebo CPAP suggested no significant improvements in cognition. A comparison of pre- and posttreatment neuropsychological test scores after 3 weeks of therapeutic CPAP in both groups showed a significant improvement in cognition. The study was underpowered to make definitive statements about improvements within specific cognitive constructs, although exploratory post hoc examination of change scores for individual tests suggested improvements in episodic verbal learning and memory and some aspects of executive functioning such as cognitive flexibility and mental processing speed. OSA may aggravate cognitive dysfunction in dementia and thus may be a reversible cause of cognitive loss in patients with AD. OSA treatment seems to improve some cognitive functioning. Clinicians who care for patients with AD should consider implementing CPAP treatment when OSA is present.
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