Maros Ferencik1, Thomas Mayrhofer2, Michael T Lu3, Daniel O Bittner4, Hamed Emami3, Stefan B Puchner5, Nandini M Meyersohn3, Alexander V Ivanov3, Elizabeth C Adami3, Deepak Voora6, Geoffrey S Ginsburg7, James L Januzzi8, Pamela S Douglas9, Udo Hoffmann3. 1. Knight Cardiovascular Institute, Oregon Health and Science University, Portland, Oregon, USA; Cardiovascular Research Imaging Center, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA. Electronic address: ferencik@ohsu.edu. 2. Cardiovascular Research Imaging Center, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA; School of Business Studies, Stralsund University of Applied Sciences, Stralsund, Germany. 3. Cardiovascular Research Imaging Center, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA. 4. Cardiovascular Research Imaging Center, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA; Friedrich-Alexander University Erlangen-Nürnberg (FAU), Department of Cardiology, Erlangen, Germany. 5. Cardiovascular Research Imaging Center, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA; Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria. 6. Duke Center for Applied Genomics and Precision Medicine, Duke University School of Medicine, Durham, North Carolina, USA. 7. All of Us Research Program, National Institutes of Health, Bethesda, Maryland, USA. 8. Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA. 9. Duke Clinical Research Institute, Duke University School of Medicine, Durham, North Carolina, USA.
Abstract
BACKGROUND: Increased inflammation and myocardial injury can be observed in the absence of myocardial infarction or obstructive coronary artery disease (CAD). OBJECTIVES: The authors determined whether biomarkers of inflammation and myocardial injury-interleukin (IL)-6 and high-sensitivity cardiac troponin (hs-cTn)-were associated with the presence and extent of CAD and were independent predictors of major adverse cardiovascular events (MACEs) in stable chest pain. METHODS: Using participants from the PROMISE trial, the authors measured hs-cTn I and IL-6 concentrations and analyzed computed tomography angiography (CTA) images in the core laboratory for CAD characteristics: significant stenosis (≥70%), high-risk plaque (HRP), Coronary Artery Disease Reporting and Data System (CAD-RADS) categories, segment involvement score (SIS), and coronary artery calcium (CAC) score. The primary endpoint was a composite MACE (death, myocardial infarction, or unstable angina). RESULTS: The authors included 1,796 participants (age 60.2 ± 8.0 years; 47.5% men, median follow-up 25 months). In multivariable linear regression adjusted for atherosclerotic cardiovascular disease (ASCVD) risk, hs-cTn was associated with HRP, stenosis, CAD-RADS, and SIS. IL-6 was only associated with stenosis and CAD-RADS. hs-cTn above median (1.5 ng/L) was associated with MACEs in univariable analysis (HR: 2.1 [95% CI: 1.3-3.6]; P = 0.006), but not in multivariable analysis adjusted for ASCVD and CAD. IL-6 above median (1.8 ng/L) was associated with MACEs in multivariable analysis adjusted for ASCVD and HRP (HR: 1.9 [95% CI: 1.1-3.3]; P = 0.03), CAC (HR: 1.9 [95% CI: 1.0-3.4]; P = 0.04), and SIS (HR: 1.8 [95% CI: 1.0-3.2]; P = 0.04), but not for stenosis or CAD-RADS. In participants with nonobstructive CAD (stenosis 1%-69%), the presence of both hs-cTn and IL-6 above median was strongly associated with MACEs (HR: 2.5-2.7 after adjustment for CAD characteristics). CONCLUSIONS: Concentrations of hs-cTn and IL-6 were associated with CAD characteristics and MACEs, indicating that myocardial injury and inflammation may each contribute to pathways in CAD pathophysiology. This association was most pronounced among participants with nonobstructive CAD representing an opportunity to tailor treatment in this at-risk group. (PROspective Multicenter Imaging Study for Evaluation of Chest Pain [PROMISE]; NCT01174550).
BACKGROUND: Increased inflammation and myocardial injury can be observed in the absence of myocardial infarction or obstructive coronary artery disease (CAD). OBJECTIVES: The authors determined whether biomarkers of inflammation and myocardial injury-interleukin (IL)-6 and high-sensitivity cardiac troponin (hs-cTn)-were associated with the presence and extent of CAD and were independent predictors of major adverse cardiovascular events (MACEs) in stable chest pain. METHODS: Using participants from the PROMISE trial, the authors measured hs-cTn I and IL-6 concentrations and analyzed computed tomography angiography (CTA) images in the core laboratory for CAD characteristics: significant stenosis (≥70%), high-risk plaque (HRP), Coronary Artery Disease Reporting and Data System (CAD-RADS) categories, segment involvement score (SIS), and coronary artery calcium (CAC) score. The primary endpoint was a composite MACE (death, myocardial infarction, or unstable angina). RESULTS: The authors included 1,796 participants (age 60.2 ± 8.0 years; 47.5% men, median follow-up 25 months). In multivariable linear regression adjusted for atherosclerotic cardiovascular disease (ASCVD) risk, hs-cTn was associated with HRP, stenosis, CAD-RADS, and SIS. IL-6 was only associated with stenosis and CAD-RADS. hs-cTn above median (1.5 ng/L) was associated with MACEs in univariable analysis (HR: 2.1 [95% CI: 1.3-3.6]; P = 0.006), but not in multivariable analysis adjusted for ASCVD and CAD. IL-6 above median (1.8 ng/L) was associated with MACEs in multivariable analysis adjusted for ASCVD and HRP (HR: 1.9 [95% CI: 1.1-3.3]; P = 0.03), CAC (HR: 1.9 [95% CI: 1.0-3.4]; P = 0.04), and SIS (HR: 1.8 [95% CI: 1.0-3.2]; P = 0.04), but not for stenosis or CAD-RADS. In participants with nonobstructive CAD (stenosis 1%-69%), the presence of both hs-cTn and IL-6 above median was strongly associated with MACEs (HR: 2.5-2.7 after adjustment for CAD characteristics). CONCLUSIONS: Concentrations of hs-cTn and IL-6 were associated with CAD characteristics and MACEs, indicating that myocardial injury and inflammation may each contribute to pathways in CAD pathophysiology. This association was most pronounced among participants with nonobstructive CAD representing an opportunity to tailor treatment in this at-risk group. (PROspective Multicenter Imaging Study for Evaluation of Chest Pain [PROMISE]; NCT01174550).
Authors: James L Januzzi; Sunil Suchindran; Udo Hoffmann; Manesh R Patel; Maros Ferencik; Adrian Coles; Jean-Claude Tardif; Geoffrey S Ginsburg; Pamela S Douglas Journal: J Am Coll Cardiol Date: 2019-01-29 Impact factor: 24.094
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