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High-sensitivity cardiac troponin T and N-terminal pro-B-type natriuretic peptide predict mortality in stable coronary artery disease: results from the Ludwigshafen Risk and Cardiovascular Health (LURIC) study.
MedLine Citation:
PMID:  24072576     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Abstract Background: The simultaneous assessment of high-sensitivity cardiac troponin T (hscTnT) and NT-proBNP for predicting death in stable coronary artery disease (CAD) has yet not been examined. We investigated the additional contribution of hscTnT to the risk of mortality prediction of NT-proBNP in patients with stable CAD. Methods: We studied 1469 patients with stable CAD enrolled in the Ludwigshafen Risk and Cardiovascular Health Study (LURIC). hscTnT and NT-proBNP were measured in baseline samples using immunoassays (Roche Diagnostics, Germany). Results: Thirty-five percent (n=525) of the patients died during a median follow-up of 7 and a half years. In total 59.0% of the non-survivors and 25.2% of the survivors exhibited concentrations of hscTnT≥14 ng/L. Logistic regression analysis identified hscTnT and NT-proBNP as independent risk markers for short-term (1-year follow-up) and long-term (9-years follow-up) mortality. ROC curve analysis determined optimal univariate cut-offs at 14 ng/L and 443 µg/L for hscTnT (AUC 0.725, p<0.0001) and NT-proBNP (AUC 0.742, p<0.0001), respectively. Kaplan-Meier survival analysis based on optimized cut-offs for the simultaneous determination of both biomarkers confirmed the usefulness of additive hscTnT especially in prediction of short-term mortality. The prognostic benefit of the combined assessment of hscTnT and NT-proBNP could be confirmed by a significantly increased reclassification index (NRI) of 24.2%. Conclusions: The majority of non-survivors exhibited increased hscTnT concentrations above 14 ng/L. The simultaneous determination of NT-proBNP and hscTnT was superior for risk stratification compared to determining either marker alone. Especially the prediction of the clinically important 1-year mortality was significantly improved by addition of hscTnT to NT-proBNP.
Authors:
Evangelos Giannitsis; Eberhard Spanuth; Andrea Horsch; Marcus E Kleber; Winfried Koch; Tanja B Grammer; Wolfgang Koenig; Winfried März
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Clinical chemistry and laboratory medicine : CCLM / FESCC     Volume:  51     ISSN:  1434-6621     ISO Abbreviation:  Clin. Chem. Lab. Med.     Publication Date:  2013 Oct 
Date Detail:
Created Date:  2013-09-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9806306     Medline TA:  Clin Chem Lab Med     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  2019-28     Citation Subset:  IM    
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