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Patent Ductus Arteriosus

PDA is the fifth or sixth most common congenital heart defect. PDA represents 5-10% of all congenital heart diseases, excluding those in premature infants. It occurs in approximately 8 of 1000 live premature births. In term infants, the incidence is about 1 in 2000 births.

PATENT DUCTUS ARTERIOSUS

Patent ductus arteriosus (PDA) is an abnormal opening between two major blood vessels, the aorta and the pulmonary artery. PDA is common in premature infants, but rare in full term infants. An opening or duct between the aorta and pulmonary artery is normal and necessary while the baby is in the womb; however, within 2-3 days of birth, this duct normally closes. If it does not close, the abnormal opening causes too much blood to circulate to the lungs and heart. Blood pressure in the lungs may increase and the heart may weaken. Fortunately, this congenital defect can be treated with both medications and surgery. Once repaired, the PDA rarely causes long-term problems.