Coronary steal: how many thieves are out there?
View abstract on PubMed
Summary
This summary is machine-generated.Coronary steal, initially describing flow reversal, now encompasses broader conditions causing reduced blood flow. This review clarifies its pathophysiology, clinical presentation, and treatment for six scenarios.
Area Of Science
- Cardiovascular Medicine
- Vascular Physiology
- Interventional Cardiology
Background
- The term "coronary steal" originated in 1967, mirroring "subclavian steal" (1961), to describe reversed blood flow in abnormal vascular networks.
- Initially linked to specific conditions like coronary fistulas or subclavian stenosis, the concept has evolved.
- The term now broadly includes various pathophysiological mechanisms causing decreased blood flow, not solely flow reversal.
Approach
- This review synthesizes current understanding of coronary steal phenomena.
- It details the anatomical and physiological underpinnings of these conditions.
- Treatment strategies for six distinct clinical scenarios are presented.
Key Points
- The evolution of the "steal" concept from literal flow reversal to broader flow reduction mechanisms.
- Understanding the specific anatomical and physiological prerequisites for steal phenomena.
- Identification and management of diverse clinical presentations of coronary steal.
Conclusions
- Coronary steal encompasses a spectrum of conditions affecting myocardial perfusion.
- A comprehensive understanding of pathophysiology is crucial for accurate diagnosis.
- Tailored treatment approaches are necessary for optimal patient outcomes.
Related Concept Videos
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...
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...
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...
The heart, an organ critical to survival, gets nourishment not from the blood it pumps but from a separate circulation system known as coronary circulation. This is the shortest circulation in the body and is responsible for supplying the heart with the nutrients it needs to function effectively.
Coronary circulation begins at the base of the aorta, where two main arteries arise—the left and right coronary arteries. These arteries encircle the heart in the coronary sulcus and supply the...
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...
Coronary Artery Disease (CAD) is a primary health risk worldwide, leading to significant morbidity and mortality. The condition arises from the buildup of atherosclerotic plaques within the coronary arteries, resulting in diminished blood supply to the heart muscle.The clinical manifestations of CAD vary widely, from asymptomatic stages to severe, life-threatening conditions. Understanding these manifestations is crucial for early diagnosis and effective management.Angina Pectoris: The Warning...

