title: Cyanosis in atrial septal defect due to persistent eustachian valve.
abstract: Two cyanotic patients had venoarterial shunting from the inferior vena cava to the left atrium in an uncomplicated atrial septal defect with normal right ventricular pressures. Cyanosis was due to a large, anomalous inferior vena caval valve, the eustachian valve. The mechanism of cyanosis and technical problems for surgical repair are discussed.
mesh_terms: D000293:Adolescent; D000328:Adult; D003490:Cyanosis / Q000209:etiology*; D005260:Female; D006344:Heart Septal Defects, Atrial / Q000150:complications* / Q000473:pathology / Q000601:surgery; D006801:Humans; D008297:Male; D014682:Vena Cava, Inferior / Q000002:abnormalities* / Q000601:surgery