When is patent ductus arteriosus (PDA) typically diagnosed?

Updated: Nov 20, 2018
  • Author: Luke K Kim, MD; Chief Editor: Stuart Berger, MD  more...
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The patient presentation of patent ductus arteriosus (PDA) varies widely. Although frequently diagnosed in infants, the discovery of this condition may be delayed until childhood or even adulthood. In isolated patent ductus arteriosus (PDA), signs and symptoms are consistent with left-to-right shunting. The shunt volume is determined by the size of the open communication and the pulmonary vascular resistance (PVR).

Patent ductus arteriosus (PDA) may also exist with other cardiac anomalies, which must be considered at the time of diagnosis. In many cases, the diagnosis and treatment of a patent ductus arteriosus (PDA) is critical for survival in neonates with severe obstructive lesions to either the right or left side of the heart.

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