Comparative evaluation of B-type natriuretic peptide, mid-regional pro-A-type natriuretic peptide, mid-regional pro-adrenomedullin, and Copeptin to predict 1-year mortality in patients with acute destabilized heart failure

Alfons Gegenhuber, Joachim Struck, Benjamin Dieplinger, Werner Poelz, Richard Pacher, Nils G Morgenthaler, Andreas Bergmann, Meinhard Haltmayer, Thomas Mueller
Journal of Cardiac Failure 2007, 13 (1): 42-9

BACKGROUND: The aim of the present study was to evaluate the capability B-type natriuretic peptide (BNP) as a prognostic marker in patients with acute destabilized heart failure in comparison with mid-regional pro-A-type natriuretic peptide (MR-proANP), mid-regional pro-adrenomedullin (MR-proADM), and the C-terminal part of the arginine vasopressin prohormone (Copeptin).

METHODS AND RESULTS: BNP, MR-proANP, MR-proADM, and Copeptin plasma concentrations were obtained in 137 patients with acute destabilized heart failure attending a tertiary care hospital. The end point was defined as all-cause mortality, and the study participants were followed for 365 days. Of the 137 patients enrolled, 41 died and 96 survived during follow-up. ROC curve analysis showed that the areas under curve for the prediction of 1-year mortality were similar for BNP (0.716; 95% CI 0.633-0.790), MR-proANP (0.725; 95% CI 0.642-0.798), MR-proADM (0.708; 95% CI 0.624-0.782), and Copeptin (0.688; 95% CI 0.603-0.764). Using tercile approaches, Kaplan-Meier curve analyses demonstrated that the predictive value of all four analytes for survival probability was comparable (log-rank test for trend, P < .001 for each). In multivariable Cox proportional-hazards regression analyses, increased BNP, MR-proANP, MR-proADM, and Copeptin plasma concentrations were the strongest predictors of mortality.

CONCLUSION: BNP is considered an established prognostic marker for heart failure patients. The present study provides evidence that MR-proANP, MR-proADM, and Copeptin measurements might have similar predictive properties compared with BNP determinations for one-year all-cause mortality in acute destabilized heart failure.

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