OBJECTIVE: This study explored the relationship between coronary atherosclerotic plaque burden and quantifiable circulating levels of troponin measured with a recently introduced high sensitive cardiac troponin T (hs-cTnT) assay. METHODS AND RESULTS: Cardiac patients suspected of having coronary artery disease (CAD) but without acute coronary syndrome were studied. Cardiac troponin T levels were assessed using the fifth-generation hs-cTnT assay. All patients (n=615) underwent cardiac computed tomographic angiography (CCTA). On the basis of CCTA, patients were classified as having no CAD or mild (<50% lesion), moderate (50% to 70% lesion), severe (>70% lesion), or multivessel CAD (multiple >70% lesions). As a comparison, high-sensitivity C-reactive protein levels were measured. Progressively increasing hs-cTnT levels were found in patients with mild (median, 4.5 ng/L), moderate (median, 5.5 ng/L), severe (median, 5.7 ng/L), and multivessel (median, 8.6 ng/L) CAD compared with patients without CAD (median, 3.7 ng/L) (all P<0.01). For high-sensitivity C-reactive protein and N-terminal pro-B-type natriuretic peptide, no such relationship was observed. In patients without CAD, 11% showed hs-cTnT levels in the highest quartile, compared with 62% in the multivessel disease group (P<0.05). Multivariance analysis identified hs-cTnT as an independent risk factor for the presence of CAD. CONCLUSIONS: In patients without acute coronary syndrome, even mild CAD is associated with quantifiable circulating levels of hs-cTnT.
OBJECTIVE: This study explored the relationship between coronary atherosclerotic plaque burden and quantifiable circulating levels of troponin measured with a recently introduced high sensitive cardiac troponin T (hs-cTnT) assay. METHODS AND RESULTS: Cardiac patients suspected of having coronary artery disease (CAD) but without acute coronary syndrome were studied. Cardiac troponin T levels were assessed using the fifth-generation hs-cTnT assay. All patients (n=615) underwent cardiac computed tomographic angiography (CCTA). On the basis of CCTA, patients were classified as having no CAD or mild (<50% lesion), moderate (50% to 70% lesion), severe (>70% lesion), or multivessel CAD (multiple >70% lesions). As a comparison, high-sensitivity C-reactive protein levels were measured. Progressively increasing hs-cTnT levels were found in patients with mild (median, 4.5 ng/L), moderate (median, 5.5 ng/L), severe (median, 5.7 ng/L), and multivessel (median, 8.6 ng/L) CAD compared with patients without CAD (median, 3.7 ng/L) (all P<0.01). For high-sensitivity C-reactive protein and N-terminal pro-B-type natriuretic peptide, no such relationship was observed. In patients without CAD, 11% showed hs-cTnT levels in the highest quartile, compared with 62% in the multivessel disease group (P<0.05). Multivariance analysis identified hs-cTnT as an independent risk factor for the presence of CAD. CONCLUSIONS: In patients without acute coronary syndrome, even mild CAD is associated with quantifiable circulating levels of hs-cTnT.
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Authors: Harald Seifarth; Christopher L Schlett; Sam J Lehman; Fabian Bamberg; Patrick Donnelly; James L Januzzi; Wolfgang Koenig; Quynh A Truong; Udo Hoffmann Journal: J Cardiovasc Comput Tomogr Date: 2014-09-16
Authors: Nilson T Poppi; Luís H W Gowdak; Luciana O C Dourado; Eduardo L Adam; Thiago N P Leite; Bruno M Mioto; José E Krieger; Luiz A M César; Alexandre C Pereira Journal: Clin Cardiol Date: 2016-10-18 Impact factor: 2.882
Authors: Parker Foster; Lori Sokoll; Ji Li; Gary Gerstenblith; Elliot K Fishman; Thomas Kickler; Shaoguang Chen; Hong Tai; Hong Lai; Shenghan Lai Journal: Int J STD AIDS Date: 2018-10-31 Impact factor: 1.359