期刊
PLOS ONE
卷 9, 期 10, 页码 -出版社
PUBLIC LIBRARY SCIENCE
DOI: 10.1371/journal.pone.0109662
关键词
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资金
- National Heart, Lung, and Blood Institute (NHLBI) [HHSN268201100005C, HHSN268201100006C, HHSN268201100007C, HHSN268201100008C, HHSN268201100009C, HHSN268201100010C, HHSN268201100011C, HHSN268201100012C]
- NHLBI [HHSN268201200036C, HHSN268200800007C, N01 HC55222, N01HC85079, N01HC85080, N01HC85081, N01HC85082, N01HC85083, N01HC85086, HL080295, R21 HL109611]
- National Institute on Aging (NIA) [AG023629]
Background: Sick sinus syndrome (SSS) is a common indication for pacemaker implantation. Limited information exists on the association of sick sinus syndrome (SSS) with mortality and cardiovascular disease (CVD) in the general population. Methods: We studied 19,893 men and women age 45 and older in the Atherosclerosis Risk in Communities (ARIC) study and the Cardiovascular Health Study (CHS), two community-based cohorts, who were without a pacemaker or atrial fibrillation (AF) at baseline. Incident SSS cases were validated by review of medical charts. Incident CVD and mortality were ascertained using standardized protocols. Multivariable Cox models were used to estimate the association of incident SSS with selected outcomes. Results: During a mean follow-up of 17 years, 213 incident SSS events were identified and validated (incidence, 0.6 events per 1,000 person-years). After adjustment for confounders, SSS incidence was associated with increased mortality (hazard ratio [HR] 1.39, 95% confidence interval [CI] 1.14-1.70), coronary heart disease (HR 1.72, 95% CI 1.11-2.66), heart failure (HR 2.87, 95% CI 2.17-3.80), stroke (HR 1.56, 95% CI 0.99-2.46), AF (HR 5.75, 95% CI 4.43-7.46), and pacemaker implantation (HR 53.7, 95% CI 42.9-67.2). After additional adjustment for other incident CVD during follow-up, SSS was no longer associated with increased mortality, coronary heart disease, or stroke, but remained associated with higher risk of heart failure (HR 2.00, 95% CI 1.51-2.66), AF (HR 4.25, 95% CI 3.28-5.51), and pacemaker implantation (HR 25.2, 95% CI 19.8-32.1). Conclusion: Individuals who develop SSS are at increased risk of death and CVD. The mechanisms underlying these associations warrant further investigation.
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