Does permanent atrial fibrillation modify response to cardiac resynchronization therapy in heart failure patients? Ana Abreu, Mário Oliveira, Pedro Silva Cunha, Helena Santa Clara, Guilherme Portugal, Inês Gonçalves Rodrigues, Vanessa Santos, Luís Morais, Mafalda Selas, Rui Soares, Luísa Branco, Rui Ferreira, Miguel Mota Carmo

Incidence of ventricular arrhythmias in patients with severe left ventricular systolic dysfunction: is there a benefit after cardiac resynchronization therapy? Ana Teresa Timóteo, Mário Martins Oliveira, Manuel Nogueira Silva, Alexandra Toste, Ruben Ramos, Joana Feliciano, Pedro Silva Cunha, Rui Soares, Sofia Santos, Rui Cruz Ferreira

What happens to non-responders in cardiac resynchronization therapy? Pedro Rio, Mário Martins Oliveira, Pedro Silva Cunha, Manuel Nogueira da Silva, Luísa Moura Branco, Ana Galrinho, Rui Soares, Joana Feliciano, Ricardo Pimenta, Rui Cruz Ferreira