Impact of substrate-based ablation for ventricular tachycardia in patients with frequent appropriate implantable cardioverter-defibrillator therapy and dilated cardiomyopathy: Long-term experience with high-density mapping Mário Oliveira; Pedro Cunha; Bruno Valente; Guilherme Portugal; Ana Lousinha; Mariana Pereira; Manuel Braz; Ana Delgado; Rui C. Ferreira;

Paravalvular leak closure: Still a challenge with unpredictable results Ana Galrinho; Luísa M. Branco; António Fiarresga; Duarte Cacela; Lídia Sousa; Ruben Ramos; Rui C. Ferreira;

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