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Related Experiment Videos

Toward the quiescent coronary plaque

A I MacIsaac1, J D Thomas, E J Topol

  • 1Department of Cardiology, Cleveland Clinic Foundation, Ohio 44195.

Journal of the American College of Cardiology
|October 1, 1993
PubMed
Summary

Understanding coronary plaque rupture is key to treating atherosclerosis. Therapies targeting plaque composition and thrombosis may prevent rupture and its serious cardiac events.

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Area of Science:

  • Cardiovascular Medicine
  • Pathophysiology
  • Molecular Biology

Background:

  • Coronary atherosclerosis involves plaque rupture, leading to acute coronary syndromes like myocardial infarction and sudden cardiac death.
  • Plaque rupture mechanics, exceeding tensile strength, are not predictable by coronary angiography.
  • Existing therapies (cholesterol-lowering, beta-blockers) may reduce plaque rupture incidence.

Purpose of the Study:

  • To explore the pathophysiology of coronary plaque rupture.
  • To identify factors influencing the consequences of plaque rupture.
  • To highlight emerging strategies for preventing plaque rupture and its sequelae.

Main Methods:

  • Review of pathophysiology of plaque rupture.
  • Analysis of factors determining consequences of plaque rupture (thrombus formation, thrombotic/fibrinolytic systems).
  • Discussion of recent advances in cardiovascular molecular biology, diagnostics, and therapeutics.

Main Results:

  • Plaque rupture is a critical event in unstable angina, myocardial infarction, and sudden cardiac death.
  • Consequences depend on thrombus formation, influenced by blood flow and coagulation systems.
  • Certain medications may reduce plaque rupture incidence.

Conclusions:

  • Advances in molecular biology and therapeutics offer new ways to study and modify plaque rupture.
  • Targeting gene expression to alter plaque composition and inhibiting prothrombotic/fibrinolytic defects are future prevention strategies.
  • An interdisciplinary approach can shift coronary artery disease management towards plaque rupture prevention.

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