MedSchool: Ace Your OSCEsThe Medical Company
GET - On the App Store
Congenital Malformations
Congenital Malformations

Patent Ductus Arteriosus

On this page:Diagnosis


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
Next Page
Want more info like this?
  • Your electronic clinical medicine handbook
  • Guides to help pass your exams
  • Tools every medical student needs
  • Quick diagrams to have the answers, fast
  • Quizzes to test your knowledge
Sign Up Now

Snapshot: Initialising...