How does PDA work?
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Subsequently, one may also ask, what does the PDA do?
Then, the oxygen-rich blood returns to the left side ofthe heart and is pumped out to the rest of the body. If theductus arteriosus doesn't close after birth as it should, it'scalled a patent ductus arteriosus (PDA). A PDA allowsblood to flow directly from the aorta into the pulmonary artery andto the lungs.
Likewise, is PDA life threatening? If a moderate or large PDA is not treated, extrastrain is placed on the heart and lung vessels. Irreversible damageto the blood vessels of the lungs can occur. Infection of the bloodvessels may also occur. This condition, called bacterialendocarditis, may be life threatening.
Similarly, can PDA close on its own?
A small PDA may close on its own as yourchild grows. A PDA that causes symptoms will need tobe treated with medicine, cardiac catheterization, or surgery. Thecardiologist will check from time to time to see if thePDA is closing on its own. If a PDA does notclose, it will be fixed to prevent lungproblems.
How does PDA cause heart failure?
If the PDA is large, breathlessness may be due toreduced heart function or problems related to highpressures in the lungs. High pressure may occur in the lung vesselsbecause more blood than normal is being pumped there. Over timethis may cause permanent damage to the lung bloodvessels (pulmonary hypertension).