Correlation of pressure gradient in three hepatic veins with portal pressure gradient

Figure 1 Various pressures measured during transjugular intrahepatic portosystemic shunt in the same patient. A: Balloon blocking vein and hand pushing of 5 mL contrast medium. Right hepatic vein wedged hepatic vein/venous pressure (WHVP) = 31 mmHg, free hepatic venous pressure (FHVP) = 13 mmHg, and hepatic venous pressure gradient (HVPG) = 18 mmHg; B: Balloon blocking vein and hand pushing of 5 mL of contrast medium. Middle hepatic vein WHVP = 41 mmHg, FHVP = 14 mmHg, and HVPG = 27 mmHg; C: Balloon blocking vein and hand pushing of 5 mL of contrast medium. Left hepatic vein WHVP = 51 mmHg, FHVP = 14 mmHg, and HVPG = 37 mmHg; D: Portal venography and pressure measurement during transjugular intrahepatic portosystemic shunt. Portal vein pressure = 52 mmHg, inferior vena cava pressure = 12 mmHg, and portal pressure gradient = 40 mmHg.

Figure 2 Difference between hepatic venous pressure gradient and portal pressure gradient.

Figure 3 Difference between wedged hepatic vein/venous pressure and portal vein pressure.

Figure 4 Balloon occlusion. A: Balloon occlusion of right hepatic vein angiography showed the formation of collateral branches of the hepatic vein; B: Balloon occlusion of left hepatic vein angiography showed that there was no collateral formation of the hepatic vein.