Cyanosis in a patient with combined ostium primum and secundum atial septal defects and anomalous inferior vena cava with azygos continuation. Case report and surgical considerations.

A case is described of combined ostium primum and ostium secundum atrial septal defects and azygos connection of the inferior vena cava plus cyanosis. Emphasis is made to recognize the functional mechanism of cyanosis and to demonstrate the anatomic site of hepatic venous drainage so that an appropriate corrective operative procedure can be planned. A gratifying result was achieved in this case after closure of the atrial septal defects.