Portal Hypertension Epidemiology

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Updated: May 05, 2022

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Prevalence and indicators of portal..

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FAQs

1

What is the most common cause of portal hypertension?

Portal hypertension is elevated pressure in your portal venous system. The portal vein is a major vein that leads to the liver. The most common cause of portal hypertension is cirrhosis (scarring) of the liver.
2

What are the 3 categories of portal hypertension?

With regard to the liver itself, causes of portal hypertension usually are classified as prehepatic, intrahepatic, and posthepatic.
3

When does portal hypertension occur?

Portal hypertension occurs when there is an obstruction of blood flow through the liver, and pressure rises within the portal vein. This obstruction can be intrahepatic (intra=within +hepatic=liver), pre-hepatic (pre=before) or post- hepatic (post=after).
4

What is the pathophysiology of portal hypertension?

Portal hypertension is characterized by a pathologic increase in portal venous pressure that leads to the formation of an extensive network of portosystemic collaterals that divert a large fraction of portal blood to the systemic circulation, bypassing the liver.
2. Uptodate.com

Portal hypertension in adults - UpToDate

https://www.uptodate.com/contents/portal-hypertension-in-adults

Portal hypertension often develops in the setting of cirrhosis, schistosomiasis, or extrahepatic portal vein thrombosis.

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