
In the Antiarrhythmic Trial with Dronedarone in Moderate to Severe CHF Evaluating Morbidity Decrease (ANDROMEDA) investigators observed that dronedarone, an anti-arrhythmic agent related to amiodarone, was associated with increased mortality in patients who were hospitalized for symptomatic heart failure (HF) (New York Heart Association [NYHA] class II, III, or IV) and left ventricular systolic dysfunction.