[The correlation between NT-proBNP plasma levels and heart failure syndrome].

Unlabelled: proBNP represents the precursor of the brain natriuretic peptide (BNP) and is released by the cardio-myocytes as a result of the myocardial stretch. It is fractioned into two components, BNP and NT-proBNP. We use more often the determination of NT-proBNP levels in laboratory tests because of its prolonged biological half-time (60-120 minutes, much longer than the BNP half-life).