Multifocal coronary plaque instability

James A Goldstein1

  • 1Cardiology Division, William Beaumont Hospital, Royal Oak, MI 48073, USA.

Insights

Patients with acute coronary syndromes often have multiple complex plaques, indicating plaque instability is a systemic issue affecting the entire cardiovascular system, not just local areas.

Area of Science:

  • Cardiovascular Medicine
  • Pathophysiology
  • Angiography

Background:

  • Acute coronary syndromes are frequently associated with multiple complex atherosclerotic plaques.
  • Angiography reveals widespread plaque burden in affected patients.
  • Necropsy studies correlate multiple complex plaques with plaque rupture and thrombosis.

Purpose of the Study:

  • To investigate the systemic nature of atherosclerotic plaque instability.
  • To determine if plaque instability in coronary and peripheral vessels occurs concurrently.
  • To support the concept of systemic pathophysiological processes driving plaque destabilization.

Main Methods:

  • Review of recent clinical observations and necropsy findings.
  • Correlation analysis between angiographic findings and post-mortem examinations.
  • Comparative assessment of plaque instability in coronary and peripheral vasculature.

Main Results:

  • Multiple complex plaques are common in patients with acute coronary syndromes.
  • Plaque instability is observed multifocally in both coronary and peripheral arteries.
  • Concomitant instability in coronary and peripheral vessels suggests a systemic process.

Conclusions:

  • Atherosclerotic plaque instability is not a localized event.
  • Systemic pathophysiological processes contribute to widespread plaque destabilization.
  • Plaque instability reflects a systemic cardiovascular condition.

Related Concept Videos

Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT01:25

Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT

Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...
Coronary Artery Disease II: Pathophysiology01:26

Coronary Artery Disease II: Pathophysiology

Coronary Artery Disease (CAD) originates from a series of events that impair the function of coronary arteries, the blood vessels responsible for delivering oxygen-rich blood to the heart muscle. The pathophysiology of CAD is closely linked to atherosclerosis, a chronic inflammatory and lipid-driven condition affecting the vascular endothelium.1. Endothelial DamageThe process begins with damage to the vascular endothelium, which serves as a protective barrier between the blood and the vessel...
Acute Coronary Syndrome I: Introduction01:30

Acute Coronary Syndrome I: Introduction

Acute Coronary Syndrome (ACS) encompasses a spectrum of heart conditions caused by sudden obstruction of coronary arteries, typically resulting from the rupture of an atherosclerotic plaque and subsequent thrombus (blood clot) formation. This obstruction can lead to partial or complete blockage of blood flow, causing varying degrees of myocardial ischemia or infarction.ACS includes the following clinical entities:Unstable Angina (UA)Non-ST-Elevation Myocardial Infarction (NSTEMI)ST-Elevation...
Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
Atherosclerosis I: Introduction01:30

Atherosclerosis I: Introduction

Atherosclerosis is a progressive disorder characterized by the buildup of plaques on the arterial inner wall, causing them to narrow and harden over time. These plaques comprise lipids, calcium, blood components, carbohydrates, and fibrous tissue. The process primarily affects the intima of large and medium-sized arteries, reducing blood flow in any artery.Etiology and risk factorsThe cause of atherosclerosis is multifactorial, involving a complex interplay among endothelial injury, lipid...