Translations:Cardiology/83/en

There are two types of pulmonary atresia, classified by whether or not the baby also has a ventricular septal defect.

• Pulmonary atresia with an intact ventricular septum: This type of pulmonary atresia is associated with complete and intact septum between the ventricles.
• Pulmonary atresia with a ventricular septal defect: This type of pulmonary atresia happens when a ventricular septal defect allows blood to flow into and out of the right ventricle.