Portal Hypertension
Portal Hypertension
What isportal hypertension?Portal hypertension is a pathologic statethat the liveror associatedstructuresobstruct portal bloodflow and result intheportal veinsystem hypertension,whichclinically presents as splenomegaly andhypersplenism,hematemesisandmelenafrom esophageal and gastric varices rupture,and ascites
Portal hypertension is a pathologic state that the liver or associated structures obstruct portal blood flow and result in the portal vein system hypertension, which clinically presents as splenomegaly and hypersplenism, hematemesis and melena from esophageal and gastric varices rupture, and ascites. What is portal hypertension?
★Anatomyof portalveinsystem★Etiology★PathophysiologyClinicalpresentation★Diagnosis and differential diagnosis★Treatment
★ Anatomy of portal vein system ★ Etiology ★ Pathophysiology ★ Clinical presentation ★ Diagnosis and differential diagnosis ★ Treatment
Anatomy of Portal Vein System
Anatomy of Portal Vein System
The blood flow of splenic vein is2o-3o%ofthatofportal veinThe portal veinsystemisbetweenChcntcventwo capillarynetworksSplerevinPortal veinNo valves in portalinferiorSuperigrseniericVeinentericvelinvein system and theLitcolievenbleod flowcan be reverted
◆ The blood flow of splenic vein is 20-30% of that of portal vein ◆ The portal vein system is between two capillary networks ◆ No valves in portal vein system and the blood flow can be reversed