Coronary Plaque Morphology and the Anti-Inflammatory Impact of Atorvastatin: A Multicenter 18F-Fluorodeoxyglucose Positron Emission Tomographic/Computed Tomographic Study

Nonobstructive coronary plaques manifesting high-risk morphology (HRM) associate with an increased risk of adverse clinical cardiovascular events. We sought to test the hypothesis that statins have a greater anti-inflammatory effect within coronary plaques containing HRM. In this prospective multice...

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Veröffentlicht in:Circulation. Cardiovascular imaging 2016-12, Vol.9 (12)
Hauptverfasser: Singh, Parmanand, Emami, Hamed, Subramanian, Sharath, Maurovich-Horvat, Pal, Marincheva-Savcheva, Gergana, Medina, Hector M, Abdelbaky, Amr, Alon, Achilles, Shankar, Sudha S, Rudd, James H F, Fayad, Zahi A, Hoffmann, Udo, Tawakol, Ahmed
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container_issue 12
container_start_page
container_title Circulation. Cardiovascular imaging
container_volume 9
creator Singh, Parmanand
Emami, Hamed
Subramanian, Sharath
Maurovich-Horvat, Pal
Marincheva-Savcheva, Gergana
Medina, Hector M
Abdelbaky, Amr
Alon, Achilles
Shankar, Sudha S
Rudd, James H F
Fayad, Zahi A
Hoffmann, Udo
Tawakol, Ahmed
description Nonobstructive coronary plaques manifesting high-risk morphology (HRM) associate with an increased risk of adverse clinical cardiovascular events. We sought to test the hypothesis that statins have a greater anti-inflammatory effect within coronary plaques containing HRM. In this prospective multicenter study, 55 subjects with or at high risk for atherosclerosis underwent F-fluorodeoxyglucose positron emission tomographic/computed tomographic imaging at baseline and after 12 weeks of treatment with atorvastatin. Coronary arterial inflammation ( F-fluorodeoxyglucose uptake, expressed as target-to-background ratio) was assessed in the left main coronary artery (LMCA). While blinded to the PET findings, contrast-enhanced computed tomographic angiography was performed to characterize the presence of HRM (defined as noncalcified or partially calcified plaques) in the LMCA. Arterial inflammation (target-to-background ratio) was higher in LMCA segments with HRM than those without HRM (mean±SEM: 1.95±0.43 versus 1.67±0.32 for LMCA with versus without HRM, respectively; P=0.04). Moreover, atorvastatin treatment for 12 weeks reduced target-to-background ratio more in LMCA segments with HRM than those without HRM (12 week-baseline Δtarget-to-background ratio [95% confidence interval]: -0.18 [-0.35 to -0.004] versus 0.09 [-0.06 to 0.26]; P=0.02). Furthermore, this relationship between coronary plaque morphology and change in LMCA inflammatory activity remained significant after adjusting for baseline low-density lipoprotein and statin dose (β=-0.27; P=0.038). In this first study to evaluate the impact of statins on coronary inflammation, we observed that the anti-inflammatory impact of statins is substantially greater within coronary plaques that contain HRM features. These findings suggest an additional mechanism by which statins disproportionately benefit individuals with more advanced atherosclerotic disease. URL: http://www.clinicaltrials.gov. Unique identifier: NCT00703261.
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In this first study to evaluate the impact of statins on coronary inflammation, we observed that the anti-inflammatory impact of statins is substantially greater within coronary plaques that contain HRM features. These findings suggest an additional mechanism by which statins disproportionately benefit individuals with more advanced atherosclerotic disease. URL: http://www.clinicaltrials.gov. Unique identifier: NCT00703261.</abstract><cop>United States</cop><pmid>27956407</pmid></addata></record>
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identifier EISSN: 1942-0080
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source MEDLINE; American Heart Association Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals
subjects Adult
Aged
Anti-Inflammatory Agents - therapeutic use
Atorvastatin - therapeutic use
Biomarkers - blood
Computed Tomography Angiography
Coronary Angiography - methods
Coronary Artery Disease - blood
Coronary Artery Disease - diagnostic imaging
Coronary Artery Disease - drug therapy
Coronary Vessels - diagnostic imaging
Coronary Vessels - drug effects
Double-Blind Method
Female
Fluorodeoxyglucose F18 - administration & dosage
Humans
Inflammation Mediators - blood
Male
Middle Aged
Plaque, Atherosclerotic
Positron Emission Tomography Computed Tomography
Predictive Value of Tests
Prospective Studies
Radiopharmaceuticals - administration & dosage
Risk Factors
Severity of Illness Index
Time Factors
Treatment Outcome
United States
Vascular Calcification - diagnostic imaging
Vascular Calcification - drug therapy
title Coronary Plaque Morphology and the Anti-Inflammatory Impact of Atorvastatin: A Multicenter 18F-Fluorodeoxyglucose Positron Emission Tomographic/Computed Tomographic Study
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