Transposition of Great Arteries

Cyanosis with Increased Pulmonary Flow (Cyanosis with Heart Failure):

  • Transposition of the Great Arteries

  • Total Anomalous Pulmonary Venous Drainage

  • On Clinical Exam

    • Usually no murmur
    • Single S2
    • Cyanosis visibly mild may be missed
    • Comfortable until PDA closes
  • ECG

    • RVH
    • May be normal
  • X-ray

    • Generalized cardiomegaly
    • Narrow mediastinum
    • Increased PVM
    • May be normal