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;

A new electrophysiologic triad for identification and localization of the critical isthmus in atrial flutter Pedro Adragão; Daniel Matos; Francisco Moscoso Costa; Pedro Carmo; Diogo Cavaco; Gustavo Rodrigues; João Carmo; Francisco Morgado; Miguel Mendes;

Pattern Matching Filter and multielectrode mapping catheter ¿ A new approach for complex premature ventricular contraction ablation Pedro A. Sousa; Natália António; Sérgio Barra; Luís Elvas; Lino Gonçalves;