CORRECTION OF ANOMALOUS VENOUS RETURN FROM THE RIGHT LUNG TO THE INFERIOR VENA CAVA (SCIMITAR DEFORMITY)

AUTOR(ES)

Oglietti, Jorge

RESUMO

Anomalous pulmonary venous drainage to the inferior vena cava is a rare congenital cardiac defect. Oxygenated blood from the right lung enters the right atrium resulting in a left-to-right shunt. Because the radiographic shadow of the anomalous vein resembles a curved saber, this defect has been called the “scimitar” deformity. From 1958 through June 30, 1975, 11 patients underwent surgical correction of this anomaly at our institution with 10 survivors. Diagnosis was made by routine roentgenography of the chest in all but one patient. Eight patients had total correction which consisted of implanting the anomalous vein into the right atrium, opening the interatrial septum and applying a patch graft as a baffle to direct pulmonary venous blood into the left atrium. Five patients had associated cardiac defects which were also repaired. Three patients underwent pneumonectomy and all survived. The only operative death occurred in a 5-year-old female with an atrial septal defect and endocardial cushion defect. We believe the existence of a large left-to-right shunt justifies surgical intervention. The prognosis appears to depend upon the presence of other cardiac or pulmonary anomalies.

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