Related Experiment Video

Updated: Aug 3, 2026

Permanent Cerebral Vessel Occlusion via Double Ligature and Transection
08:22

Permanent Cerebral Vessel Occlusion via Double Ligature and Transection

Published on: July 21, 2013

Occluded infarct-related arteries and clinical events

M Lund1, J K French, H D White

  • 1Cardiovascular Research Unit, Green Lane Hospital, Auckland, New Zealand.

Progress in Cardiovascular Diseases
|June 28, 2000
PubMed

Insights

Opening persistently blocked heart arteries after a heart attack may improve survival. A large trial is needed to compare artery opening procedures with medication alone for long-term outcomes.

Area of Science:

  • Cardiovascular Medicine
  • Interventional Cardiology

Background:

  • Late patency of the infarct-related artery (IRA) correlates with improved survival in observational studies.
  • Randomized trials are lacking to confirm the clinical benefits of opening persistently occluded IRAs.
  • Advances in percutaneous revascularization have enhanced safety and reduced restenosis/reocclusion rates.

Purpose of the Study:

  • To address the need for a randomized trial evaluating percutaneous revascularization versus medical management for occluded IRAs.
  • To assess clinical outcomes in patients with occluded IRAs without inducible ischemia.

Main Methods:

  • A large-scale randomized controlled trial is proposed.
  • Comparison between percutaneous revascularization and medical management strategies.
  • Focus on patients with persistently occluded infarct-related arteries.

Main Results:

  • Observational data suggest improved survival with late IRA patency.
  • Percutaneous revascularization techniques have demonstrated improved safety and efficacy.
  • Further research is required to establish definitive clinical outcomes from randomized trials.

Conclusions:

  • A definitive randomized trial is necessary to guide treatment decisions for occluded IRAs.
  • Evaluating percutaneous revascularization against medical management is crucial for optimizing patient care.
  • Evidence from observational studies highlights the potential benefits of maintaining IRA patency.

More Related Videos

Myocardial Infarction and Functional Outcome Assessment in Pigs12:03

Myocardial Infarction and Functional Outcome Assessment in Pigs

Published on: April 25, 2014

Optimization of the Longa Middle Cerebral Artery Occlusion Method for Complete Reperfusion13:18

Optimization of the Longa Middle Cerebral Artery Occlusion Method for Complete Reperfusion

Published on: November 22, 2024

Related Concept Videos

Ischemic Heart Disease: Overview01:17

Ischemic Heart Disease: Overview

Ischemic heart disease occurs when the heart's blood supply dwindles, causing an ominous lack of oxygen and nutrients. This deficiency, stemming from reduced or obstructed blood flow, spells danger, leading to heart muscle damage and dysfunction.
Atherosclerosis, the primary malefactor, orchestrates this dangerous condition. It manifests as the accumulation of fatty deposits, akin to insidious plaques, within arterial walls. As time elapses, these plaques metamorphose, hardening and narrowing...
Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations01:19

Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations

The pathophysiology of Acute Coronary Syndrome [ACD] involves several key processes:The main underlying cause of ACD is atherosclerosis, a chronic inflammatory disease characterized by the buildup of lipid-laden plaques within the coronary arteries.As the atherosclerotic plaque grows in the coronary artery, it may become unstable due to the formation of a lipid-rich core and a thin fibrous cap. Inflammatory cells within the plaque, such as macrophages, secrete enzymes that degrade the...
Atherosclerosis II: Clinical Manifestations and Diagnostic Tests01:27

Atherosclerosis II: Clinical Manifestations and Diagnostic Tests

Atherosclerosis is a progressive disorder that leads to the thickening and narrowing of arterial walls due to plaque buildup. This condition can cause various symptoms depending on the arteries affected:Coronary Artery Disease (CAD): This condition affects the coronary arteries and may lead to chest pain (angina), shortness of breath (dyspnea), heart attacks, and other heart disease symptoms.Cerebrovascular Disease: This affects blood flow to the brain, causing transient ischemic attacks (TIAs)...
Ischemic Stroke l: Introduction01:15

Ischemic Stroke l: Introduction

Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.
Ischemic Stroke ll: Pathophysiology01:15

Ischemic Stroke ll: Pathophysiology

An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...
Transient Ischemic Attack l: Introduction01:26

Transient Ischemic Attack l: Introduction

A transient ischemic attack (TIA) is a brief episode of neurological dysfunction caused by a temporary, focal reduction in cerebral blood flow. Although symptoms resemble those of an ischemic stroke, the interruption in perfusion is short-lived and does not cause permanent infarction. TIAs are clinically important because they often serve as early warning events for future stroke.Mechanisms of Transient Cerebral IschemiaTransient cerebral ischemia may arise through several mechanisms. One...