Fig. 2

Kawashima procedure. Figure on the right demonstrating an interrupted infra-hepatic inferior vena cava and it is continuous with the dilated azygous venous system (white arrow), which drains into the right superior vena cava (blue arrow). The superior vena cava has been anastomosed to the branch pulmonary arteries. Figure on the left demonstrating the hepatic veins drain directly into the right atrium (red arrow). Thus majority of the systemic venous blood is directed into the branch pulmonary arteries apart from the hepatic and coronary venous blood