Fluoroless cavotricuspid isthmus ablation of typical atrial flutter achieves success with shorter radiofrequency and procedural times Sofia Jacint; Guilherme Portugal; Hélder Santos; Pedro Silva Cunha; Bruno Valente; Ana Lousinha; Ana Sofia Delgado; Rui Cruz Ferreira; Mário Martins Oliveira;

Cardiopulmonary exercise testing in clinical practice: Principles, applications, and basic interpretation Hélder Dores; Miguel Mendes; Ana Abreu; Anaí Durazzo; Cidália Rodrigues; Eduardo Vilela; Gonçalo Cunha; José Gomes Pereira; Luísa Bento; Luís Moreno; Paulo Dinis; Sandra Amorim; Susana Clemente; Mário Santos;

Pre-excited atrial fibrillation: A lower threshold for electrical cardioversion Luís Elvas;