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  • Long-standing persistent atrial fibrillation : what can we achieve with ablation?
    Publication . Nunes-Ferreira, Afonso; Cortez-Dias, Nuno; Silverio Antonio, P.; Silva, Gustavo Lima da; Gonçalves, Inês; Aguiar-Ricardo, Inês; Rigueira, Joana; Agostinho, João R.; Santos, R.; Rodrigues, T.; Cunha, N.; Barreiros, C.; Carpinteiro, L.; Pinto, Fausto J.; Sousa, J. de
    Introduction: Atrial fibrillation (AF) ablation presents suboptimal results in patients (pts) with persistent long-lasting forms (LSPAF, AF ≥12 months). Recently, the STAR AF-II trial has shown that in these pts complex additional strategies do not improve success compared to only performing pulmonary vein isolation (PVI). Objectives: To evaluate the success of AF ablation, particularly in long-standing persistent AF
  • Isolation of pulmonary veins with duty-cycled circular multi-polar catheter : randomized controlled clinical trial
    Publication . Pinto, Fausto J.; Sobral, S.; Ribeiro, J.; Barreiros, C.; Bernardes, Ana; António, P. Silvério; Ferreira, A. Nunes; Silva, Gustavo Lima; Carpinteiro, Luís; Cortez-Dias, Nuno; Sousa, João de
    Introduction: Pulmonary vein isolation (PVI) is the central element in the ablation of atrial fibrillation (AF), and can be obtained with different ablation modalities. The duty­cycled circular multi­pole catheter PVAC® (Medtronic) allows linear application of radiofrequency energy, with the production of circumferential lesions. Conceptually, it can make ablation simpler and faster in patients with favorable anatomy.