Patent ductus arteriosus (PDA) is a fairly common congenital heart defect in the United States. Although the condition can affect full-term infants, it's more common in premature infants.
On average, PDA occurs in about 8 out of every 1,000 premature babies, compared with 2 out of every 1,000 full-term babies.
PDA also is more common in:
PDA is twice as common in girls as it is in boys.
Clinical trials are research studies that explore whether a medical strategy, treatment, or device is safe and effective for humans.
Visit Children and Clinical Studies to hear experts, parents, and children talk about their experiences with clinical research.
November 20, 2013
Gary H. Gibbons
New NHLBI Program Trains Scientists to Bring More Science Out of the Lab and into the Patient Care Marketplace
The NHLBI updates Health Topics articles on a biennial cycle based on a thorough review of research findings and new literature. The articles also are updated as needed if important new research is published. The date on each Health Topics article reflects when the content was originally posted or last revised.