Ambulatory blood pressure monitoring in heart failure and serum sodium levels José Carlos Arévalo-Lorido, Juana Carretero-Gómez, Luis Manzano Espinosa, Javier Sobrino-Martínez, José Luis Arias-Jiménez, Francesc Formiga, Antoni Castro-Salomó, Miguel Camafort Babkowski

Impact of catheter ablation for atrial fibrillation in patients with heart failure and left ventricular systolic dysfunction Joana Maria Ribeiro, Pedro A. Sousa, Natália António, Rui Baptista, Luís Elvas, Sérgio Barra, Lino Gonçalves

Contribution of cardiopulmonary exercise testing to the identification of latent systolic dysfunction in chronic aortic regurgitation Giovani Luiz De Santi, Eduardo Elias Vieira de Carvalho, Daniela Caetano Costa, Júlio César Crescencio, Minna Moreira Dias Romano, André Schmidt, Marcus Vinícius Simões, Lourenço Gallo