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What is a patent ductus arteriosus?

5 doctors weighed in
Dr. Joshua Murphy
Pediatrics - Cardiology
4 doctors agree

In brief: Ductus Arteriosus

A ductus arteriosus is a vessel that allows babies to survive while in utero.
.. It allows blood to bypass the lungs which are full of amniotic fluid and get to the placenta where gas exchange occurs. A patent ductus arteriosus is simply a vessel that has not closed (patent) once born the lungs relax and the pressures fall. As such, extra blood goes to the lungs, inefficient work for the heart.

In brief: Ductus Arteriosus

A ductus arteriosus is a vessel that allows babies to survive while in utero.
.. It allows blood to bypass the lungs which are full of amniotic fluid and get to the placenta where gas exchange occurs. A patent ductus arteriosus is simply a vessel that has not closed (patent) once born the lungs relax and the pressures fall. As such, extra blood goes to the lungs, inefficient work for the heart.
Dr. Joshua Murphy
Dr. Joshua Murphy
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