Patent ductus arteriosus (PDA)

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Definition

Patent ductus arteriosus (PDA) is a persistent, abnormal opening between two major blood vessels leading from the heart. Fortunately, this heart defect present at birth (congenital) often closes on its own or is readily treatable.

A small patent ductus arteriosus often doesn't cause symptoms. A doctor may discover it during a routine exam. An infant with a larger patent ductus arteriosus often has trouble gaining weight and exhibits other symptoms. An older child with a patent ductus arteriosus may not be as active as normal, may tire more easily and may have frequent lung infections.

Treatment options for repairing a patent ductus arteriosus include medications and surgery.

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Symptoms