What is it?

Congenital anomalies of circulatory system include:
-Patent ductus arteriosus (PDA) is a persistent opening between the aorta and the pulmonary arteries. This opening is normal in a fetus, but typically it closes shortly after delivery. If the opening is small, it may be asymptomatic and will not need treatment, but a large PDA allows poorly oxygenated blood to flow to the baby’s lung and heat, making the heart enlarged and weak.

-Congenital anomalies of pulmonary arteries, such as pulmonary atresia, which is a congenital defect that typically is diagnosed soon after birth. In this condition, the valve through which blood flows from the heart to the lungs, does not form correctly. The blood finds other passages to flow to the lungs, within the heart and its arteries, which are closed soon after birth. This condition is life threatening, and has to be treated for the baby to live. Risk factors for pulmonary atresia is a parent or sibling ith this condition, a mother who was obese before pregancy, smooking before or during preganncy, a mother with uncontrolled diabetes, and maternal usage of severeal medications.

-Aortic coarctation is a narrowing of the aorta, usually present in birth. The Part of the aorta that is typically affected is the part near the ductus arteriosus. Symptoms may not always be present, depending on the severity of narrowing. Sometimes it will be detected in adulthood. The abnormality usually occurs when there are heart defects.