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Patent Ductus Arteriosus

 
 
 
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Overview

A patent ductus arteriosus is the persistence post birth of a blood vessel connecting the pulmonary artery and the aorta.
  • Signs of Patent Ductus Arteriosus

  • Peripheral Signs

  • Peripheral cyanosis
  • Collapsing pulse
  • Widened pulse pressure
  • Central Signs

  • Displaced apex beat
  • Continuous murmur
  • Paradoxical splitting of the second heart sound (S2): single S2 during inspiration and split S2 during expiration
  • Evidence of Eisenmenger’s syndrome - cyanosis, clubbing
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