A heart murmur may be the only sign that a baby has patent ductus arteriosus (PDA). A heart murmur is an extra or unusual sound heard during the heartbeat. Heart murmurs also have other causes besides PDA, and most murmurs are harmless.
Some infants may have signs or symptoms of volume overload on the heart and excess blood flow in the lungs. These signs and symptoms may include:
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.