Cyanosis in atrial septal defect due to persistent eustachian valve.
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.
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