A cohort study of patients with atrial fibrillation (AF) and low risk for stroke has found that the use of early rhythm control therapy was associated with a lower risk of cardiovascular death, ischemic stroke, hospitalization for heart failure, or myocardial infarction compared to rate control therapy. The findings are published in Annals of Internal Medicine.
AF is associated with increased mortality and morbidity from stroke and congestive heart failure as well as impaired quality of life. Therapies like rate control are important to the management of AF and typically improves symptoms. Previous studies comparing rhythm and rate control have not demonstrated significant differences in effects on mortality and stroke, but the EAST-AFNET 4 (Early Treatment of Atrial Fibrillation for Stroke Prevention Trial) recently showed that rhythm control therapy was associated with lower risk for adverse cardiovascular outcomes compared with usual care among patients diagnosed with AF within the previous year.
Researchers from Yonsei and CHA University College of Medicine studied 54,216 patients with AF having early rhythm or rate control therapy that was initiated within the first year of diagnosis to investigate whether EAST-AFNET 4 results can be generalized to patients with low stroke risk. The authors report that almost 70% of study participants were eligible for EAST-AFNET 4.
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