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;

Brugada syndrome: Eligibility for subcutaneous implantable cardioverter-defibrillator after exercise stress test Pedro von Hafe; Bebiana Faria; Geraldo Dias; Filipa Cardoso; Maria José Alves; Assunção Alves; Bernardete Rodrigues; Sílvia Ribeiro; Víctor Sanfins; António Lourenço;

QT interval greater than 460 ms in multiple electrocardiograms during follow-up in patients with Brugada syndrome: What does it contribute? Marcelo Puga Bravo; Jesús Castro; Yisel Gallardo;