Background: Heart failure (HF) is a condition with poor outcome, especially in advanced cases. Determination of B-type natriuretic peptide (BNP) levels is useful in the diagnosis of cardiac decompensation and has also been proving useful in the prognostic evaluation.
Objectives: To verify whether BNP levels are able to identify patients with a poorer outcome and whether it is an independent prognostic factor considering age, gender, cardiac and renal functions, as well as the cause of heart disease.