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Medical AI Inquiry: You was designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.  Labels: OBJECTIVE, RESULTS. Meshes: Adult, Aged, Biomarkers, C-Reactive Protein, Chi-Square Distribution, Coronary Angiography, Coronary Stenosis, Female, Humans, Likelihood Functions, Logistic Models, Male, Middle Aged, Natriuretic Peptide, Brain, Odds Ratio, Peptide Fragments, Predictive Value of Tests, Risk Assessment, Risk Factors, Severity of Illness Index, Tomography, X-Ray Computed, Troponin T, Up-Regulation.
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Is the extent of coronary atherosclerosis associated with increasing circulating levels of high sensitive cardiac troponin T? Context: 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. 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.
assistant
In patients without acute coronary syndrome, even mild CAD is associated with quantifiable circulating levels of hs-cTnT. Final Decision: yes