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brain natriuretic peptide levels predict functional capacity in patients with chronic heart failure

Stefan Krüger, MD^*,*, J.ürgen Graf, MD^*, Dagmar Kunz, MD, Tina Stickel, Cand Med^*, Peter Hanrath, MD, FESC, FACC^* and Uwe Janssens, MD, FESC^*

^* Medical Clinic I, University Hospital, University of Technology, Aachen, Germany
Institute of Clinical Chemistry and Pathobiochemistry, University Hospital, University of Technology, Aachen, Germany

View larger version (18K): [in a new window]   Figure 1 Scatter plots of brain natriuretic peptide (BNP) concentrations versus peak oxygen uptake (VO2) (a) and left ventricular ejection fraction (LVEF) (b).

View larger version (17K): [in a new window]   Figure 2 Receiver operating characteristic curve of brain natriuretic peptide for the determination of peak oxygen uptake (VO2) <10 ml/min/kg (a) and peak VO2 <14 ml/min/kg (b). AUROC = area under the receiver operating characteristic curve.