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;

Portuguese National Registry on Cardiac Electrophysiology, 2017 and 2018 Nuno Cortez-Dias; Pedro Silva Cunha; Francisco Moscoso Costa; Daniel Bonhorst; Mário M. Oliveira;

Ventricular tachycardia induced by pacing algorithm designed to avoid atrial fibrillation David Roque; Nuno Cabanelas; João Augusto; Francisco Madeira; Hugo Vasconcelos; Carlos Morais;