RT Journal Article SR Electronic T1 Atrial tachyarrhythmias and cardiac resynchronisation therapy: clinical and therapeutic implications JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1174 OP 1178 DO 10.1136/hrt.2009.184523 VO 96 IS 15 A1 Carlo Lavalle A1 Renato P Ricci A1 Massimo Santini YR 2010 UL http://heart.bmj.com/content/96/15/1174.abstract AB Atrial fibrillation (AF) represents one of the most important comorbidities in patients with heart failure (HF). This report highlights the available evidence for the relationship between AF and cardiac resynchronisation therapy (CRT). Studies on the use of CRT in patients with HF and AF have demonstrated its effectiveness. It seems to reduce the AF burden and determines left atrial reverse remodelling. No definite data are available on AF ablation in patients with CRT but it might represent a therapeutic option. Furthermore, modern implantable pacemakers and cardioverter-defibrillators are provided with diagnostic algorithms which allow a better understanding of the AF burden.