Related Experiment Video
Updated: Aug 14, 2026

Permanent Ligation of the Left Anterior Descending Coronary Artery in Mice: A Model of Post-myocardial Infarction Remodelling and Heart Failure
Published on: December 2, 2014
[The basis of chronic ischemic reversible left ventricular dysfunction (hibernating myocardium)]
1Oddĕlení srdecní chirurgie Fakultní nemocnice Motol a 2. lékarské fakulty Univerzity Karlovy, Praha.
Hibernating myocardium, a chronic heart dysfunction, may recover function after revascularization. Early intervention is crucial as prolonged hibernation leads to irreversible cellular damage.
Area of Science:
- Cardiology
- Medical Imaging
- Physiology
Context:
- Hibernating myocardium is characterized by chronic left ventricular dysfunction.
- Previously thought to be an adaptive response to reduced blood flow.
- Recent positron emission tomography studies challenge this notion.
Purpose:
- To clarify the pathophysiology of hibernating myocardium.
- To investigate the role of coronary flow reserve.
- To emphasize the importance of early revascularization.
Summary:
- Hibernating myocardium exhibits normal or near-normal resting blood flow, contrary to earlier beliefs.
- Reduced coronary flow reserve causes demand-induced ischemia and myocardial stunning.
- Cellular degeneration, not adaptation, dominates, diminishing recovery potential over time.
Impact:
- Highlights the critical need for timely revascularization in managing hibernating myocardium.
- Provides updated understanding for clinical decision-making in heart failure patients.
- Emphasizes the time-sensitive nature of myocardial recovery.
More Related Videos
09:12Surgical Swine Model of Chronic Cardiac Ischemia Treated by Off-Pump Coronary Artery Bypass Graft Surgery
Published on: March 27, 2018
05:25Surgical Porcine Model of Chronic Myocardial Ischemia Treated by Exosome-laden Collagen Patch and Off-pump Coronary Artery Bypass Graft
Published on: September 15, 2023
Related Concept Videos
Ischemic Heart Disease: Overview
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...
Myocarditis I: Introduction
Heart Failure II: Pathophysiology
Cardiomyopathy I: Introduction and Classification
Cardiomyopathy III: Hypertrophic Cardiomyopathy
Cardiomyopathy IV: Restrictive Cardiomyopathy