Nov 21, 2024 · In truncus arteriosus, one large vessel comes out of the heart, instead of two separate ones. There's also usually a hole in the wall between the lower heart chambers, called the ventricles.

This artery (the truncus) sits over a large opening or hole in the wall between the two pumping chambers (ventricular septal defect). With only one artery, there is no specific path to the lungs for oxygen …

Truncus arteriosus is a rare congenital heart defect that affects how blood flows out of your baby’s heart. Instead of a separate pulmonary artery and aorta, your baby has a single vessel called a truncus.

TA occurs when the two main blood vessels arising from the heart — the aorta and the pulmonary artery — do not separate as they should during fetal development. Babies with TA are born with one large …

In a normal heart, there are two large blood vessels that take blood to the body (the aorta) and the lungs (the pulmonary artery). Sometimes one blood vessel forms instead of two. This is called a common …

In truncus arteriosus, a baby is born with only one great artery leaving the heart, instead of two. Read about symptoms, diagnosis and treatments.

Truncus arteriosus, a congenital heart disease, occurs when the single large blood vessel fails to divide into two arteries during fetal development.

Oct 8, 2025 · Truncus arteriosus (TA), also known as common arterial trunk, is a cyanotic congenital heart defect. In this condition, blood is pumped from the heart through a single truncal valve into a …

Dec 7, 2020 · In this rare defect, the two large arteries that leave the heart, the aorta and the pulmonary artery, are combined in one large vessel, known as the Truncus Arteriosus (1 in diagram). This …

Jan 8, 2026 · Truncus arteriosus (common truncus) occurs when a single common blood vessel comes from the heart, instead of the usual two vessels. A baby with this condition may need surgery or …