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In this clinical trial involving patients with atrial fibrillation and congestive heart failure, rhythm control (to maintain sinus rhythm) and rate control (to control the ventricular rate in atrial fibrillation) were compared. The two strategies were nearly identical with respect to all clinical outcomes. Thus, the simpler approach, rate control, should be considered the treatment of choice in such patients.
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Dronedarone is a class III antiarrhythmic drug that has efficacy as a treatment for atrial fibrillation and ventricular arrhythmias. In this clinical trial involving patients with severe heart failure, however, dronedarone was found to increase overall mortality, raising serious concern about the safety of this drug in patients with advanced heart failure.
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In a study of 406 patients with myotonic dystrophy type 1, 96 had severe electrocardiographic (ECG) abnormalities when first evaluated. During an average of 5.7 years of follow-up, there were 81 deaths, of which 27 were sudden. The presence of a severe ECG abnormality at baseline was an independent predictor of sudden death (relative risk, 3.3).
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Two Food and Drug Administration advisory committees recently voted not to recommend approval of over-the-counter sales of lovastatin. This article reviews the rationale behind the committees' recommendations and discusses the risks and benefits of nonprescription sales of statins and other medications for asymptomatic conditions.
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