Abstract:
OBJECTIVES:This study sought to identify whether obesity and obstructive sleep apnea (OSA) independently predict incident atrial fibrillation/flutter (AF). BACKGROUND:Obesity is a risk factor for AF, and OSA is highly prevalent in obesity. Obstructive sleep apnea is associated with AF, but it is unknown whether OSA predicts new-onset AF independently of obesity. METHODS:We conducted a retrospective cohort study of 3,542 Olmsted County adults without past or current AF who were referred for an initial diagnostic polysomnogram from 1987 to 2003. New-onset AF was assessed and confirmed by electrocardiography during a mean follow-up of 4.7 years. RESULTS:Incident AF occurred in 133 subjects (cumulative probability 14%, 95% confidence interval [CI] 9% to 19%). Univariate predictors of AF were age, male gender, hypertension, coronary artery disease, heart failure, smoking, body mass index, OSA (hazard ratio 2.18, 95% CI 1.34 to 3.54) and multiple measures of OSA severity. In subjects <65 years old, independent predictors of incident AF were age, male gender, coronary artery disease, body mass index (per 1 kg/m2, hazard ratio 1.07, 95% CI 1.05 to 1.10), and the decrease in nocturnal oxygen saturation (per 0.5 U log change, hazard ratio 3.29, 95% CI 1.35 to 8.04). Heart failure, but neither obesity nor OSA, predicted incident AF in subjects > or =65 years of age. CONCLUSIONS:Obesity and the magnitude of nocturnal oxygen desaturation, which is an important pathophysiological consequence of OSA, are independent risk factors for incident AF in individuals <65 years of age.
journal_name
J Am Coll Cardioljournal_title
Journal of the American College of Cardiologyauthors
Gami AS,Hodge DO,Herges RM,Olson EJ,Nykodym J,Kara T,Somers VKdoi
10.1016/j.jacc.2006.08.060subject
Has Abstractpub_date
2007-02-06 00:00:00pages
565-71issue
5eissn
0735-1097issn
1558-3597pii
S0735-1097(06)02859-2journal_volume
49pub_type
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journal_title:Journal of the American College of Cardiology
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更新日期:2012-05-01 00:00:00
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pub_type: 杂志文章,随机对照试验
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更新日期:2017-07-11 00:00:00
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更新日期:2006-02-21 00:00:00
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更新日期:2011-02-22 00:00:00
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更新日期:2015-01-27 00:00:00
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pub_type: 临床试验,杂志文章
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更新日期:2010-06-01 00:00:00
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更新日期:1984-09-01 00:00:00