Biomarkers and coronary lesions predict outcomes after revascularization in Non-ST-Elevation Acute Coronary Syndrome

BACKGROUND: Risk stratification in non-ST-elevation acute coronary syndrome (NSTE-ACS) is currently mainly based on clinical characteristics. With routine invasive management, angiography findings and biomarkers are available and may improve prognostication. We aimed to assess if adding biomarkers [...

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Main Authors: Lindholm, Daniel (Author) , Giannitsis, Evangelos (Author)
Format: Article (Journal)
Language:English
Published: January 27, 2017
In: Clinical chemistry
Year: 2017, Volume: 63, Issue: 2, Pages: 573-584
ISSN:1530-8561
DOI:10.1373/clinchem.2016.261271
Online Access:Verlag, Volltext: http://dx.doi.org/10.1373/clinchem.2016.261271
Verlag, Volltext: http://clinchem.aaccjnls.org/content/63/2/573
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Author Notes:Daniel Lindholm, Stefan K. James, Maria Bertilsson, Richard C. Becker, Christopher P. Cannon, Evangelos Giannitsis, Robert A. Harrington, Anders Himmelmann, Frederic Kontny, Agneta Siegbahn, Philippe Gabriel Steg, Robert F. Storey, Matthijs A. Velders, W. Douglas Weaver, and Lars Wallentin on behalf of the PLATO Investigators

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245 1 0 |a Biomarkers and coronary lesions predict outcomes after revascularization in Non-ST-Elevation Acute Coronary Syndrome  |c Daniel Lindholm, Stefan K. James, Maria Bertilsson, Richard C. Becker, Christopher P. Cannon, Evangelos Giannitsis, Robert A. Harrington, Anders Himmelmann, Frederic Kontny, Agneta Siegbahn, Philippe Gabriel Steg, Robert F. Storey, Matthijs A. Velders, W. Douglas Weaver, and Lars Wallentin on behalf of the PLATO Investigators 
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520 |a BACKGROUND: Risk stratification in non-ST-elevation acute coronary syndrome (NSTE-ACS) is currently mainly based on clinical characteristics. With routine invasive management, angiography findings and biomarkers are available and may improve prognostication. We aimed to assess if adding biomarkers [high-sensitivity cardiac troponin T (cTnT-hs), N-terminal probrain-type natriuretic peptide (NT-proBNP), growth differentiation factor 15 (GDF-15)] and extent of coronary artery disease (CAD) might improve prognostication in revascularized patients with NSTE-ACS. METHODS: In the PLATO (Platelet Inhibition and Patient Outcomes) trial, 5174 NSTE-ACS patients underwent initial angiography and revascularization and had cTnT-hs, NT-proBNP, and GDF-15 measured. Cox models were developed adding extent of CAD and biomarker levels to established clinical risk variables for the composite of cardiovascular death (CVD)/spontaneous myocardial infarction (MI), and CVD alone. Models were compared using c-statistic and net reclassification improvement (NRI). RESULTS: For the composite end point and CVD, prognostication improved when adding extent of CAD, NT-proBNP, and GDF-15 to clinical variables (c-statistic 0.685 and 0.805, respectively, for full model vs 0.649 and 0.760 for clinical model). cTnT-hs did not contribute to prognostication. In the full model (clinical variables, extent of CAD, all biomarkers), hazard ratios (95% CI) per standard deviation increase were for cTnT-hs 0.93(0.81-1.05), NT-proBNP 1.32(1.13-1.53), GDF-15 1.20(1.07-1.36) for the composite end point, driven by prediction of CVD by NT-proBNP and GDF-15. For spontaneous MI, there was an association with NT-proBNP or GDF-15, but not with cTnT-hs. CONCLUSIONS: In revascularized patients with NSTE-ACS, the extent of CAD and concentrations of NT-proBNP and GDF-15 independently improve prognostication of CVD/spontaneous MI and CVD alone. This information may be useful for selection of patients who might benefit from more intense and/or prolonged antithrombotic treatment. ClinicalTrials.gov Identifier: NCT00391872 
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