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How common is a patent foramen ovale?
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Dr. Troy Reyna
Surgery - Pediatric
In brief: Common
All infants have a patent foramen ovale (pfo) as a fetus.
This allows the fetal circulation to flow. Once born the pfo will close as the concentratiojn of oxygen in the blood rises. In a small percentage of infants the pfo may persist. Figures on this occurrence vary from 10-15%. Rarely is any treatment required unless the blood flow is severely affected. Most close within 1-2 years of birth.

In brief: Common
All infants have a patent foramen ovale (pfo) as a fetus.
This allows the fetal circulation to flow. Once born the pfo will close as the concentratiojn of oxygen in the blood rises. In a small percentage of infants the pfo may persist. Figures on this occurrence vary from 10-15%. Rarely is any treatment required unless the blood flow is severely affected. Most close within 1-2 years of birth.
Dr. Troy Reyna
Dr. Troy Reyna
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