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Limited Utilities of N-terminal pro B-type natriuretic peptide (NT-proBNP) and Other Newer Risk Markers Compared with Traditional Risk Factors for Prediction of Significant Angiographic Lesions in Stable Coronary Artery Disease
  1. Andreas Peer
  1. Innsbruck Medical University, Austria
    1. Gerda Falkensammer
    1. Innsbruck Medical University, Austria
      1. Hannes Alber
      1. Innsbruck Medical University, Austria
        1. Alexander Kroiss
        1. Innsbruck Medical University, Austria
          1. Andrea Griesmacher
          1. Innsbruck Medical University, Austria
            1. Hanno Ulmer
            1. Innsbruck Medical University, Austria
              1. Otmar Pachinger
              1. Innsbruck Medical University, Austria
                1. Johannes Mair (johannes.mair{at}
                1. Innsbruck Medical University, Austria


                  Objective: To investigate the usefulness of N-terminal pro-brain natriuretic peptide (NT-proBNP) as a predictive marker for angiographically significant coronary artery disease (CAD) and CAD severity compared with other newer biochemical risk markers and classical risk factors in patients with clinically suspected CAD.

                  Design: Cross-sectional evaluation of NT-proBNP in a large consecutive series of patients without a history of myocardial infarction referred for elective coronary angiography (CAG) between March 2004 and January 2005. The value of NT-proBNP for predicting CAD was assessed and compared with high sensitivity C-reactive protein (hs-CRP), gamma-glutamyltransferase (GGT), and traditional risk factors.

                  Setting: Tertiary care center, Department of Cardiology, Innsbruck Medical University, Austria.

                  Patients: 561 men and 287 women aged between 20-86 years. (median 65 years).

                  Interventions: None.

                  Main outcome measures: Association of NT-proBNP with the severity of CAD, left ventricular dysfunction and comparison of predictive values of NT-proBNP, hs-CRP, GGT, and traditional CAD risk factors.

                  Results: Of all tested newer biochemical risk markers NT-proBNP performed best. In a multinomial logistic regression model NT-proBNP but not hs-CRP or GGT was significantly associated with 3-vessel CAD adjusted for age, sex, ventricular, renal function and classical risk factors (odds ratio=1.667; 95% CI 1.003-2.772; p=0.049). However, NT-proBNP had no additive predictive value to traditional cardiovascular risk factors for the prediction of angiographically significant CAD in a binary logistic regression model.

                  Conclusions: The predictive value of NT-proBNP for CAD severity is better than of hs-CRP or GGT. However, NT-proBNP is also of limited value compared with traditional risk factors for predicting significant CAD.

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