NPPB and ST Elevation Myocardial Infarction: For example, in studies carried out by Falcao et al., in patients with heart failure complicating ST-elevation myocardial infarction, circulating CA 125 levels correlated with pulmonary congestion and had a similar prognostic power for mortality as N terminal pro B type natriuretic peptide (NT-pro BNP) [36,37,38].