Worsening or ‘pseudo-worsening’ renal function? The prognostic value of hemoconcentration in patients admitted with acute heart failure José Luís Martins, Luís Santos, Ana Faustino, Jesus Viana, José Santos

Continuous infusion or bolus injection of loop diuretics for patients admitted for severe acute heart failure: Is one strategy better than the other? Francisca Caetano, Paula Mota, Inês Almeida, Andreia Fernandes, Ana Botelho, António Leitão Marques

Prognostic value of plasma neutrophil gelatinase-associated lipocalin in patients with heart failure Humberto Villacorta, Rochele Alberto Martins Santos, Marcelle Alves Baco Marroig, Guilherme Pinella Guedes Pereira, Analucia Rampazzo Xavier, Salim Kanaan