Short answer · Medically reviewed summary · Last updated: 2023-07-13
Major aortopulmonary collateral arteries (MAPCAs) are abnormal blood vessels that develop in individuals with certain congenital heart defects, such as pulmonary atresia or tetralogy of Fallot. These collateral arteries serve as alternative pathways for blood flow to the lungs when the normal pulmonary arteries are either absent or severely narrowed. The prevalence of MAPCAs varies depending on the specific congenital heart defect.
What is the prevalence of Major aortopulmonary collateral arteries (MAPCAs)?
Prevalence of Major aortopulmonary collateral arteries (MAPCAs): how many people are affected worldwide, differences by sex and region, with sources.
Major aortopulmonary collateral arteries (MAPCAs) are abnormal blood vessels that develop in individuals with certain congenital heart defects, such as pulmonary atresia or tetralogy of Fallot. These collateral arteries serve as alternative pathways for blood flow to the lungs when the normal pulmonary arteries are either absent or severely narrowed.
The prevalence of MAPCAs varies depending on the specific congenital heart defect. In patients with pulmonary atresia, approximately 80-90% have MAPCAs. In tetralogy of Fallot, the prevalence is lower, ranging from 10-30%. However, it is important to note that these numbers are estimates and can vary among different populations and studies.
Diagnosis of MAPCAs typically involves imaging studies such as echocardiography, cardiac MRI, or cardiac catheterization. Treatment options may include surgical interventions to redirect blood flow or catheter-based procedures to occlude or stent the abnormal vessels.
Overall, understanding the prevalence of MAPCAs is crucial for accurate diagnosis and appropriate management of individuals with congenital heart defects.
