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Atorvastatin therapy may reduce the incidence of sudden cardiac death in patients with advanced chronic heart failure
Vrtovec, Bojan, 1972- ...
Background: In retrospective studies, statin therapy has been related to decreased incidence of sudden cardiac death (SCD) in heart failure. We sought to prospectively investigate a relation between ...atorvastatin therapy and SCD in patients with advanced chronic heart failure. Methods and results: We enrolled 110 patients with heart failure with a left ventricular ejection fraction less than 30% and cholesterol level greater than 150 mg/dL. Fifty-five patients were randomized to atorvastatin (10 mg/day) (statin group); the remaining 55 patients received no statins (controls). Patients were followed for 1 year. At baseline, the two groups did not differ in age, sex, left ventricular ejection fraction, cholesterol, B-type natriuretic peptide, heart rate variability, or QT variability. During follow-up, 29 patients died (26%) and 2 patients (2%) underwent heart transplantation. Of the 29 deaths, 13 were attributed to pump failure, 15 were attributed to SCD, and 1 was attributed to noncardiac causes. All-cause mortality was lower in the statin group (9/55, 16%) than in controls (20/55, 36%) (P = .017). The same was true of the SCD rate (3/55 š5%đ vs. 12/55 š22%đ, P = .012), but not of the pump failure (5/55 š9%đ vs. 8/55 š15%đ, P = .38). SCD-free survival was2.3-times higher in the statin group than in controls (P = .01). Conclusion: Atorvastatin therapy seems to be associated with decreased incidence of SCD in patients with advanced chronic heart failure. Larger studies are ongoing to confirm this hypothesis.
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