Portal hypertension is defined as HVPG greater than or equal to 5 mm Hg .
Portal hypertension is is considered to be clinically significant when HVPG exceeds 10 to 12 mm Hg .
Portal hypertension is defined as HVPG greater than or equal to 5 mm Hg and is considered to be clinically significant when HVPG exceeds 10 to 12 mm Hg .