Management of Acute Portal Hypertensive Bleed
Portal hypertension (PHT) is defined as elevation of portal pressure more than 5 mm of Hg.
Direct measurement of portal pressure is difficult, and so hepatic venous pressure gradient (HVPG) is measured which is reflective of portal pressure.
HVPG is pressure difference between wedged hepatic venous pressure (WHVP) and free hepatic venous pressure (FHVP).
HVPG of more than 10 mm of Hg is associated with the development of varices, and pressures more than 12 mm of Hg are associated with variceal bleed.