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Illustrations
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Alternative names
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Definition
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Causes, incidence, and risk factors
Illustrations
Heart, section through the middle
Heart, front view
Alternative names
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PA
Definition
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Pulmonary atresia is an extremely rare form of congenital heart disease. It involves severe narrowing or complete obstruction of the pulmonary valves (the valves at the outlet of the right ventricle).
Causes, incidence, and risk factors
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Pulmonary atresia is associated with a patent ductus arteriosus. There is no known cause of Pulmonary atresia.
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