Mar 26, 2024 · A baby in the womb needs these other passages. But they usually close soon after birth. Pulmonary atresia is a life-threatening condition that needs emergency treatment. Treatment …

Dec 14, 2025 · Pulmonary atresia (pronounced PULL-mun-airy ah-TREE-sha) is a congenital heart defect. Congenital means present at birth. It occurs when the valve that controls blood flow from the …

What Is Pulmonary Atresia? In a baby born with pulmonary atresia, lack of a working pulmonary valve keeps blood from reaching your lungs. Pulmonary atresia is a congenital heart defect (present at …

Pulmonary atresia (PA) is a heart defect. It happens when the fetal heart doesn’t form as it should during the first 8 weeks of pregnancy.

What is pulmonary atresia? When a normal heart squeezes, the right ventricle (the lower right pumping chamber) contracts, pushing the blood out to the lungs. The pulmonary valve is an opening on the …

There are two types of pulmonary atresia. Pulmonary atresia with intact ventricular septum (PA-IVS) is a rare congenital malformation. PA-IVS involves complete blockage of the pulmonary valve located on …

As with most congenital heart diseases, there is no known cause of pulmonary atresia. The condition is linked with another type of congenital heart defect called a patent ductus arteriosus (PDA). …

“Pulmonary” refers to the lungs, and “atresia” means missing or blocked. The pulmonary valve acts like a door that allows blood to flow from the right. to the lungs to pick up oxygen. In babies with …

As with most congenital heart diseases, there is no known cause of pulmonary atresia. The condition is linked with another type of congenital heart defect called a patent ductus arteriosus (PDA). …

Pulmonary atresia is an abnormal development of the pulmonary valve. Without repair, the heart can’t pump oxygenated blood to the body and can’t support life.