Incidence of ventricular arrhythmias in patients with severe left ventricular systolic dysfunction: is there a benefit after cardiac resynchronization therapy? Ana Teresa Timóteo, Mário Martins Oliveira, Manuel Nogueira Silva, Alexandra Toste, Ruben Ramos, Joana Feliciano, Pedro Silva Cunha, Rui Soares, Sofia Santos, Rui Cruz Ferreira

Left ventricular longitudinal systolic dysfunction is associated with right atrial dyssynchrony in heart failure with preserved ejection fraction Ibadete Bytyçi, Edmond Haliti, Gëzim Berisha, Arbërie Tishukaj, Faik Shatri, Gani Bajraktari

Impact of catheter ablation for atrial fibrillation in patients with heart failure and left ventricular systolic dysfunction Joana Maria Ribeiro, Pedro A. Sousa, Natália António, Rui Baptista, Luís Elvas, Sérgio Barra, Lino Gonçalves