Metabolic Syndrome in Adult Congenital Heart Disease

Area of Science:

• Cardiology
• Adult Congenital Heart Disease
• Cardiovascular Disease Research

Background:

• Adult congenital heart disease (ACHD) survivors face late complications including cardiac failure, arrhythmias, and aortopathy.
• Aging-related acquired conditions like hypertension, diabetes, and obesity can negatively impact pre-existing cardiovascular disease (CVD).
• Atherosclerosis presents a growing concern for aging ACHD patients, although cyanotic ACHDs show minimal coronary artery disease (CAD) post-repair.

Purpose of the Study:

• To investigate the prevalence and risk factors of premature atherosclerotic cardiovascular disease (CVD) in adult congenital heart disease (ACHD) patients.
• To identify specific mechanisms contributing to increased atherosclerosis risk in ACHD.
• To recommend screening strategies for metabolic syndrome and CAD risk factors in ACHD.

Main Methods:

• Review of existing literature on late complications in ACHD.
• Analysis of factors influencing atherosclerosis development in ACHD patients.
• Comparison of CAD prevalence and risk factors between ACHD and the general population.

Main Results:

• Cyanotic ACHDs generally have a low incidence of CAD, while acyanotic ACHDs show similar prevalence to the general population.
• Key risks for premature atherosclerotic CVD in ACHD include coronary artery abnormalities, left ventricle/aorta obstructive lesions (e.g., coarctation, aortopathy), and surgical alterations.
• Metabolic syndrome is more prevalent in ACHD than the general population, potentially increasing future atherosclerotic CAD incidence.

Conclusions:

• ACHD patients, particularly those with specific anatomical or surgical histories, are at risk for premature atherosclerotic CVD.
• Metabolic syndrome is a significant concern in ACHD and warrants targeted screening.
• Proactive management of metabolic syndrome and CAD risk factors is essential for improving long-term outcomes in ACHD survivors.