Coronary arterial anatomy in patients with left ventricular systolic dysfunction without chest pain or previous

W R Pitts1, R A Lange, L D Hillis

  • 1Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas 75235-9047, USA.

Insights

Patients with left ventricular systolic dysfunction and no chest pain rarely have 3-vessel coronary artery disease. Consequently, bypass grafting is seldom a suitable option for these individuals.

Area of Science:

  • Cardiology
  • Cardiac Surgery
  • Diagnostic Imaging

Background:

  • Left ventricular systolic dysfunction (LVSD) impacts heart function.
  • Coronary artery disease (CAD) is a major cause of cardiac events.
  • Identifying suitable candidates for coronary artery bypass grafting (CABG) is crucial.

Purpose of the Study:

  • To assess the prevalence of 3-vessel CAD in patients with LVSD.
  • To determine the suitability of coronary anatomy for bypass grafting in this patient group.

Main Methods:

  • Retrospective analysis of 108 patients with LVSD.
  • Exclusion of patients with chest pain or prior myocardial infarction.
  • Evaluation of coronary anatomy for revascularization potential.

Main Results:

  • Only 3% (3 out of 108) of patients had 3-vessel CAD.
  • Coronary anatomy was deemed unsuitable for bypass grafting in the majority of cases.

Conclusions:

  • Patients with LVSD, absent chest pain, and no prior myocardial infarction have a low likelihood of significant 3-vessel CAD.
  • Coronary artery bypass grafting is rarely indicated or suitable for this specific patient population.

Related Concept Videos

Coronary Circulation01:21

Coronary Circulation

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...
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...
Coronary Artery Disease III: Clinical Manifestations01:30

Coronary Artery Disease III: Clinical Manifestations

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...
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...
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...
Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...