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Who Is at Risk for Patent Ductus Arteriosus?

Patent ductus arteriosus (PDA) is a relatively common congenital heart defect in the United States.

The condition occurs more often in premature infants (on average, occurring in about 8 of every 1,000 births). However, PDA also occurs in full-term infants (on average, occurring in about 2 of every 1,000 births).

PDA also is more common in:

  • Infants who have genetic conditions such as Down syndrome
  • Infants whose mothers had German measles (rubella) during pregnancy

PDA is twice as common in girls as it is in boys.

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Last Updated: September 26, 2011