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from Verywell

Patent Ductus Arteriosus (PDA) in Premature Babies

What is a Patent Ductus Arteriosus (PDA)?: PDA is short for patent ductus arteriosus, a common heart condition in preemies.

from Verywell

Patent Ductus Arteriosus (PDA) in Premature Babies

What is a Patent Ductus Arteriosus (PDA)?: PDA is short for patent ductus arteriosus, a common heart condition in preemies.

In the developing fetus, the ductus arteriosus (DA), also called the ductus Botalli, is a blood vessel connecting the pulmonary artery to the aortic arch. It allows most of the blood from the right ventricle to bypass the fetus's fluid-filled non-functioning lungs. Upon closure at birth, it becomes the ligamentum arteriosum. There are two other fetal shunts, the ductus venosus and the foramen ovale.

Patent Ductus Arteriosus. When the ductus arteriosus does not close, some oxygenated blood that should be going into circulation gets shunted back into the heart.