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Incidence of and risk factors for sick sinus syndrome in the general population.

TitleIncidence of and risk factors for sick sinus syndrome in the general population.
Publication TypeJournal Article
Year of Publication2014
AuthorsJensen, PN, Gronroos, NN, Chen, LY, Folsom, AR, deFilippi, C, Heckbert, SR, Alonso, A
JournalJ Am Coll Cardiol
Volume64
Issue6
Pagination531-8
Date Published2014 Aug 12
ISSN1558-3597
KeywordsAfrican Continental Ancestry Group, Aged, Aged, 80 and over, Cohort Studies, European Continental Ancestry Group, Female, Follow-Up Studies, Humans, Incidence, Male, Middle Aged, Population Surveillance, Prospective Studies, Risk Factors, Sick Sinus Syndrome
Abstract<p><b>BACKGROUND: </b>Little is known about the incidence of and risk factors for sick sinus syndrome (SSS), a common indication for pacemaker implantation.</p><p><b>OBJECTIVES: </b>This study sought to describe the epidemiology of SSS.</p><p><b>METHODS: </b>This analysis included 20,572 participants (mean baseline age 59 years, 43% male) in the ARIC (Atherosclerosis Risk In Communities) study and the CHS (Cardiovascular Health Study), who at baseline were free of prevalent atrial fibrillation and pacemaker therapy, had a heart rate of ≥ 50 beats/min unless using beta blockers, and were identified as of white or black race. Incident SSS cases were identified by hospital discharge International Classification of Disease-revision 9-Clinical Modification code 427.81 and validated by medical record review.</p><p><b>RESULTS: </b>During an average 17 years of follow-up, 291 incident SSS cases were identified (unadjusted rate 0.8 per 1,000 person-years). Incidence increased with age (hazard ratio [HR]: 1.73; 95% confidence interval [CI]: 1.47 to 2.05 per 5-year increment), and blacks had a 41% lower risk of SSS than whites (HR: 0.59; 95% CI: 0.37 to 0.98). Incident SSS was associated with greater baseline body mass index, height, N-terminal pro-B-type natriuretic peptide, and cystatin C, with longer QRS interval, with lower heart rate, and with prevalent hypertension, right bundle branch block, and cardiovascular disease. We project that the annual number of new SSS cases in the United States will increase from 78,000 in 2012 to 172,000 in 2060.</p><p><b>CONCLUSIONS: </b>Blacks have a lower risk of SSS than whites, and several cardiovascular risk factors were associated with incident SSS. With the aging of the population, the number of Americans with SSS will increase dramatically over the next 50 years.</p>
DOI10.1016/j.jacc.2014.03.056
Alternate JournalJ. Am. Coll. Cardiol.
PubMed ID25104519
PubMed Central IDPMC4139053
Grant ListHHSN268201100012C / HL / NHLBI NIH HHS / United States
N01HC55222 / HC / NHLBI NIH HHS / United States
T32 HL007902 / HL / NHLBI NIH HHS / United States
HHSN268201100009I / HL / NHLBI NIH HHS / United States
T32 HL007770 / HL / NHLBI NIH HHS / United States
HHSN268201100010C / HL / NHLBI NIH HHS / United States
N01HC85080 / HC / NHLBI NIH HHS / United States
HHSN268201100008C / HL / NHLBI NIH HHS / United States
U01 HL080295 / HL / NHLBI NIH HHS / United States
HHSN268201100005G / HL / NHLBI NIH HHS / United States
HHSN268201100008I / HL / NHLBI NIH HHS / United States
HHSN268201100005C / / PHS HHS / United States
HHSN268201100007C / HL / NHLBI NIH HHS / United States
HHSN268200800007C / HL / NHLBI NIH HHS / United States
HHSN268201100009C / / PHS HHS / United States
HHSN268201100011I / HL / NHLBI NIH HHS / United States
HHSN268201100011C / HL / NHLBI NIH HHS / United States
T32 HL07770 / HL / NHLBI NIH HHS / United States
N01HC55222 / HL / NHLBI NIH HHS / United States
HHSN268201100010C / / PHS HHS / United States
N01HC85086 / HL / NHLBI NIH HHS / United States
R21 HL109611 / HL / NHLBI NIH HHS / United States
N01HC85081 / HC / NHLBI NIH HHS / United States
HHSN268201100006C / HL / NHLBI NIH HHS / United States
N01HC85079 / HC / NHLBI NIH HHS / United States
HHSN268201200036C / HL / NHLBI NIH HHS / United States
HHSN268201100008C / / PHS HHS / United States
HHSN268201100012C / / PHS HHS / United States
HHSN268201100005I / HL / NHLBI NIH HHS / United States
N01HC85086 / HC / NHLBI NIH HHS / United States
R01 HL080295 / HL / NHLBI NIH HHS / United States
N01HC85082 / HC / NHLBI NIH HHS / United States
HHSN268201100007C / / PHS HHS / United States
HHSN268200800007C / / PHS HHS / United States
N01HC85082 / HL / NHLBI NIH HHS / United States
HHSN268201100009C / HL / NHLBI NIH HHS / United States
HHSN268201100011C / / PHS HHS / United States
N01HC85083 / HL / NHLBI NIH HHS / United States
HHSN268201100005C / HL / NHLBI NIH HHS / United States
HHSN268201100007I / HL / NHLBI NIH HHS / United States
HHSN268201200036C / / PHS HHS / United States
HL080295 / HL / NHLBI NIH HHS / United States
N01HC85083 / HC / NHLBI NIH HHS / United States
N01HC85079 / HL / NHLBI NIH HHS / United States
N01 HC085079 / HC / NHLBI NIH HHS / United States
HHSN268201100006C / / PHS HHS / United States
R01 AG023629 / AG / NIA NIH HHS / United States
N01HC85080 / HL / NHLBI NIH HHS / United States
AG023629 / AG / NIA NIH HHS / United States
R56 AG023629 / AG / NIA NIH HHS / United States
N01HC85081 / HL / NHLBI NIH HHS / United States