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Optical Coherence Tomography Based Biomechanical Fluid-Structure Interaction Analysis of Coronary Atherosclerosis Progression
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Changes in coronary plaque color and morphology by lipid-lowering therapy with atorvastatin: serial evaluation by

Masamichi Takano1, Kyoichi Mizuno, Shinya Yokoyama

  • 1Department of Internal Medicine, Nippon Medical School, Chiba-Hokusoh Hospital, Imba, Chiba, Japan.

Journal of the American College of Cardiology
|August 23, 2003
PubMed

Insights

Statin therapy significantly reduced yellow plaque scores and improved coronary plaque morphology in patients with coronary artery disease. This indicates statins may stabilize plaques by altering their color and surface characteristics.

Area of Science:

  • Cardiovascular Medicine
  • Interventional Cardiology
  • Pharmacology

Background:

  • Coronary plaque stabilization by statin therapy remains unclear in human subjects.
  • Understanding plaque changes is crucial for managing cardiovascular disease.

Purpose of the Study:

  • To evaluate changes in coronary plaque color and morphology using angioscopy following statin therapy.
  • To investigate the impact of atorvastatin on plaque characteristics in patients with coronary artery disease.

Main Methods:

  • A study involving 31 patients with coronary artery disease, divided into atorvastatin and comparison groups.
  • Coronary plaque color (yellow score) and surface regularity (disrupted score) were assessed via angioscopy before and after 12 months of treatment.
  • Mean yellow and disrupted scores were calculated for each patient.

Main Results:

  • Atorvastatin group showed a 45% decrease in LDL-C; comparison group had a 9% increase.
  • The mean yellow score significantly decreased in the atorvastatin group (2.03 to 1.13) but increased in the comparison group (1.67 to 1.99).
  • Significant differences in the changes of mean yellow and disrupted scores were observed between the groups, correlating with LDL-C reduction.

Conclusions:

  • This study provides the first detailed human data on coronary plaque changes induced by statins.
  • Lipid-lowering therapy with statins demonstrably alters plaque color and morphology.
  • These changes suggest that statins contribute to coronary plaque stabilization.
Abstract

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