Journal of the American College of Cardiology
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J. Am. Coll. Cardiol. · Jan 1985
Case ReportsSevere hypoxemia due to shunting through a patent foramen ovale: a correctable complication of right ventricular infarction.
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. ⋯ 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.