Ann Pediatr Card Close
 

Figure 1: Schematic representation of the relevant anatomy and physiology. Interlobar hepatic venous collaterals have developed between the hepatics connected to the inferior vena cava (*) and the atrial-draining hepatic vein. Given the lower resistance in the atrium, the result is massive right-to-left shunting of inferior vena cava blood directly into the atria via these hepatic venous collaterals (broad arrow)

Figure 1: Schematic representation of the relevant anatomy and physiology. Interlobar hepatic venous collaterals have developed between the hepatics connected to the inferior vena cava (*) and the atrial-draining hepatic vein. Given the lower resistance in the atrium, the result is massive right-to-left shunting of inferior vena cava blood directly into the atria via these hepatic venous collaterals (broad arrow)