Alternative names
Patent ductus arteriosus


Patent ductus arteriosus (PDA) is a condition where the ductus arteriosus, a blood vessel that allows blood to bypass the baby’s lungs before birth, fails to close after birth. The word “patent” means open.

Also check Patent ductus arteriosus

Johns Hopkins patient information

Last revised: December 8, 2012
by Armen E. Martirosyan, M.D.

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