Persistent truncus arteriosus (PTA) is a rare form of congenital heart disease that presents at birth. In this condition, the embryological structure known as the truncus arteriosus fails to properly divide into the pulmonary trunk and aorta. This results in one arterial trunk arising from the heart and providing mixed blood to the coronary arteries, pulmonary arteries, and systemic circulation.
Most of the time, this defect occurs spontaneously. Genetic disorders, and teratogens (viruses, metabolic ...
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