Heart failure is a major problem in our societies, with high morbidity and mortality. Arrhythmias are known to contribute to the progression of and even can induce heart failure. The most common arrhythmia is atrial fibrillation, but antiarrhythmic drugs in patients with heart failure are sparse, have major side effects (e.g. amiodarone), or are even contraindicated like flecainide. Since the f...
