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Atrial Fibrillation & Risk of Sudden Cardiac Death

Atrial fibrillation raises the risk of sudden cardiac death by as much as 3.26-fold, according to an analysis of cialis works the Atherosclerosis Risk in Communities Study (ARIC), and 2.14-fold according to the Cardiovascular Health Study (CHS), researchers from the University of Minnesota Medical School reported.
Data were anlayzed from 15,439 adults between the ages of 45-years and 64-years-old in the ARIC Study and an additional 5,479 Medicare beneficiaries (>65 years) in the CHS cohort.
In the ARIC, incidence of sudden cardiac death was 2.89 per 1000 person-years in those with atrial fibrillation, and 1.30 per 1000 person-years in those without it. In CHS, it was 12 per 1000 person-years with atrial fibrillation versus 2.82 without.

Not only does atrial fibrillation predispose to stroke, heart failure, and death, but the arrhythmia per se may increase the risk of death from ventricular tachyarrhythmias.

Reference: Arch Intern Med. 2012