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What Are the Signs and Symptoms of Patent Ductus Arteriosus?

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:

  • Fast breathing, working hard to breathe, and shortness of breath. Premature infants may need extra oxygen or a ventilator to help them breathe.
  • Poor feeding and poor weight gain.
  • Tiring easily.
  • Sweating with exertion, such as while feeding.
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September 26, 2011 Last Updated Icon

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.