Truncus arteriosus
Persistent truncus arteriosus (PTA), often referred to simply as truncus arteriosus, is a rare form of heart disease that presents at birth. In this condition, the embryological structure known as the truncus arteriosus fails to properly divide into the trunk and aorta. This results in one trunk arising from the heart and providing mixed blood to the , pulmonary arteries, and circulation. For the International Classification of Diseases (ICD-11), the International Paediatric and Congenital Code (IPCCC) was developed to standardize the nomenclature of congenital heart disease. Under this system, English is now the official language, and persistent truncus arteriosus should properly be termed common arterial trunk.
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