Arrhythmias and heart failure.

Atrial fibrillation and ventricular tachyarrhythmias are frequently seen in patients with heart failure, and complicate the management of such patients. Both types of arrhythmia lead to increased morbidity and mortality, and often prove to be challenging issues to manage. The many randomized studies that have been performed in patients with these conditions and concomitant heart failure have helped in designing optimal treatment strategies.