NT-ProBNP Independently Predicts Long-Term Mortality in Patients Admitted for Coronary Angiography

Recently, research interests are focussed on biomarkers to predict the outcome in patients with coronary artery disease (CAD). We examined whether the levels of N-terminal pro-B-type natriuretic peptide (NT-proBNP) could predict outcome in patients who underwent elective or acute coronary angiography (CAG). A total of 337 patients with suspected CAD who underwent elective or acute CAG were followed up for a mean period of 6.7 years. Primary end points were all-cause mortality (ACM) and the combined end point of ACM, nonfatal myocardial infarction, and revascularization. In all, 53 (16%) patients died and 88 (26%) patients reached the combined end point. Preprocedural NT-proBNP above 32 pmol/L independently predicted ACM (hazard ratio [HR] 3.11; confidence interval [CI]: 1.60-6.07; P = .001) and the combined end point (HR 2.44 [CI: 1.50-3.97]; P < .001). This study indicates that high NT-proBNP is an independent predictor of ACM on long-term follow-up. N-terminal-proBNP is a reliable predictive marker of mortality in the setting of stable or unstable angina.