[Unstable carotid stenosis--an inflammatory disease?]

Related Experiment Video

Updated: Oct 10, 2026

A Magnetic Resonance Imaging-based Computational Protocol for Analysis of Plaque Morphology and Hemodynamics in Patients with Carotid Artery Stenosis
09:36

A Magnetic Resonance Imaging-based Computational Protocol for Analysis of Plaque Morphology and Hemodynamics in Patients with Carotid Artery Stenosis

Published on: August 12, 2025

G Stoll1, S Jander, M Sitzer

  • 1Neurologische Klinik der Heinrich-Heine-Universität, Moorenstr. 5, 40225 Düsseldorf. stollg@uni-duesseldorf.de

Der Nervenarzt
|January 5, 2001
PubMed

Insights

Inflammation drives plaque instability in carotid artery stenosis, a key cause of ischemic stroke. Targeting inflammation may offer new treatments for symptomatic carotid artery disease.

Area of Science:

  • Neurology
  • Cardiovascular Science
  • Pathology

Context:

  • Ischemic stroke is frequently caused by arterioarterial thromboembolism originating from extracranial internal carotid artery (ICA) stenosis.
  • The annual stroke risk associated with high-grade ICA stenosis varies significantly, from 1-2% in asymptomatic individuals to 13% after recent transient or minor cerebral ischemia.
  • Inflammatory processes are increasingly recognized as central to atherosclerosis and plaque destabilization, transforming chronic conditions into acute neurological events.

Purpose:

  • To investigate the role of inflammation in the destabilization of atherosclerotic plaques in patients with high-grade internal carotid artery stenosis.
  • To correlate inflammatory markers and matrix metalloproteinase-9 expression with clinical and ultrasonic indicators of plaque instability, including cerebral microembolism.

Summary:

  • Inflammatory infiltration and matrix metalloproteinase-9 expression in thromboendarterectomy specimens from patients with high-grade ICA stenoses were found to correlate with clinical and ultrasonic features of plaque destabilization.
  • Cerebral microembolism was identified as a key ultrasonic feature associated with plaque instability.

Impact:

  • Inflammation emerges as a critical factor in the pathogenesis of stroke due to carotid artery stenosis.
  • Identifying and targeting inflammatory processes presents a potential novel therapeutic strategy for managing symptomatic carotid artery disease and reducing stroke risk.

More Related Videos

Implantation of a Carotid Cuff for Triggering Shear-stress Induced Atherosclerosis in Mice07:51

Implantation of a Carotid Cuff for Triggering Shear-stress Induced Atherosclerosis in Mice

Published on: January 13, 2012

Related Concept Videos

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...
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...
Inflammation01:38

Inflammation

Overview
Peripheral Artery Disease I: Introduction01:30

Peripheral Artery Disease I: Introduction

Peripheral artery disease (PAD) predominantly results from atherosclerosis, which involves the accumulation of fatty deposits, or plaques, within the walls of arteries. This causes them to narrow and harden, significantly reducing blood flow. PAD predominantly affects the legs, particularly the arteries supplying the thighs and calves. In rare cases, it may involve other arteries, including those in the arms.Etiology of PAD:The principal cause of PAD is atherosclerosis, which results from fatty...
Angina II: Classification01:27

Angina II: Classification

Angina, also known as angina pectoris, is a chest pain resulting from diminished blood flow to the heart muscle and is often a symptom of coronary artery disease. Angina presents several variants with distinctive attributes, etiologies, and therapeutic approaches. The main types of angina include stable, unstable, variant (Prinzmetal's), microvascular, intractable, and silent ischemia.Stable angina is caused by atherosclerosis, which leads to the formation of plaques that narrow the coronary...
Myocarditis I: Introduction01:21

Myocarditis I: Introduction

Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...