Ann Pediatr Card Close
 

Figure 4: Cartoon explaining hemodynamics of single ventricle with Abernathy malformation in our patient before and after surgery. Before the surgery, vena caval and atrial pressures were 6 mmHg less than pulmonary artery pressures and portal blood reversed through the Abernathy vein (Abernethy malformation) due to transhepatic gradient. After surgery, vena caval and pulmonary artery pressures were 20 mmHg. Since the transpulmonary gradient was higher than transhepatic gradient, Abernathy vein acted as a decompressing vein and led to hypoxia

Figure 4: Cartoon explaining hemodynamics of single ventricle with Abernathy malformation in our patient before and after surgery. Before the surgery, vena caval and atrial pressures were 6 mmHg less than pulmonary artery pressures and portal blood reversed through the Abernathy vein (Abernethy malformation) due to transhepatic gradient. After surgery, vena caval and pulmonary artery pressures were 20 mmHg. Since the transpulmonary gradient was higher than transhepatic gradient, Abernathy vein acted as a decompressing vein and led to hypoxia