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;

Medium- and long-term outcome after a single second-generation cryoballoon ablation in patients with paroxysmal and persistent atrial fibrillation Ginés Elvira Ruiz; Pablo Peñafiel Verdú; Juan Martínez Sánchez; Juan José Sánchez Muñoz; Francisco José García Almagro; Carmen Muñoz Esparza; Arcadi García Alberola;