Atrial Septal Defect Causing Eisenmenger Complex

  • Etiology: long standing large left to right shunt causing irreversible pulmonary hypertension: initially acyanotic with a left to right shunt, pulmonary arteries thicken and develop pulmonary hypertension, pulmonary pressure becomes greater than systemic pressure, shunt reverses to right to left shunt, deoxygenated right heart blood shunts to systemic circulation, cyanosis results
  • CXR: Prominent central pulmonary artery with periperal pruning of pulmonary blood flow
  • Clinical: acyanotic to cyanotic

Cases of Atrial Septal Defect Causing Eisenmenger Complex