Severe hypoxemia due to shunting through a patent foramen ovale: a correctable complication of right ventricular infarction

J Am Coll Cardiol. 1985 Jan;5(1):188-92. doi: 10.1016/s0735-1097(85)80103-0.


A patient with recent inferior myocardial infarction with right ventricular involvement developed severe hypoxemia unresponsive to 100% oxygen. Contrast two-dimensional echocardiography revealed right to left shunting through an aneurysmal fossa ovalis with a patent foramen ovale. This was confirmed by cardiac catheterization. Surgical closure of the defect was probably life-saving. This case report illustrates that right to left shunting through a foramen ovale should be considered in the differential diagnosis of hypoxemia in patients presenting with inferior myocardial infarction.

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Cardiac Catheterization
  • Female
  • Heart Septal Defects, Atrial / complications*
  • Heart Septal Defects, Atrial / physiopathology
  • Heart Septal Defects, Atrial / surgery
  • Heart Ventricles / physiopathology
  • Humans
  • Hypoxia / etiology*
  • Hypoxia / physiopathology
  • Hypoxia / surgery
  • Myocardial Infarction / complications*
  • Myocardial Infarction / physiopathology