Patent ductus arteriosus PDA

• Facts:
  Connection between aorta and pulmonary artery
• History / PE:
  Continuous, machine like murmur
• Treatment:
  Prostaglandin E1 infusion (keeps PDA open)
  Indomethacin (prostaglandin inhibitor, closes PDA)
• Notes:
  Continuous murmur is caused by blood flowing through the PDA from the aorta to the pulmonary artery (both systolic and diastolic aoritc pressures are greater than pulmonary pressures)
• Associated With:
  Congenital rubella
  Eisenmenger syndrome