Portosystemic anastomosis: Anatomy, clinical significance
网页2023年7月26日 · Porto-systemic anastomosis also known as portocaval anastomosis is the collateral communication between the portal and the systemic venous system. The portal venous system transmits deoxygenated blood from most of the gastrointestinal tract and gastrointestinal organs to the liver.
Portal-Systemic Encephalopathy - StatPearls - NCBI Bookshelf
网页2023年7月31日 · Portosystemic or hepatic encephalopathy is defined as a neuropsychiatric syndrome due to a portosystemic shunt. The causative factor is increased ammonia levels in the blood. Treatment involves primary and …
Congenital portosystemic shunt - Wikipedia
网页A portosystemic shunt or portasystemic shunt (medical subject heading term; PSS), also known as a liver shunt, is a bypass of the liver by the body's circulatory system. It can be either a congenital (present at birth) or acquired condition and occurs in humans as well as in other species of animals.
Portacaval anastomosis - Wikipedia
网页A portacaval anastomosis or portocaval anastomosis is a specific type of circulatory anastomosis that occurs between the veins of the portal circulation and the vena cava, thus forming one of the principal types of portasystemic anastomosis or portosystemic anastomosis, as it connects the portal circulation to the systemic circulation ...
Portosystemic Encephalopathy - Portosystemic Encephalopathy …
网页Portosystemic encephalopathy is a neuropsychiatric syndrome that occurs when portosystemic shunting allows absorbed products that are normally detoxified by the liver to reach the brain. Manifestations include cognitive and behavioral dysfunction (eg, confusion, obtundation, coma) and neuromuscular dysfunction (eg, flapping tremor, ataxia ...
Congenital portosystemic shunts: diagnosis and treatment
网页Congenital portosystemic shunts (CPSS) are rare vascular malformations that create an abnormal connection between portal and systemic veins resulting in complete or partial diversion of the portal flow away from the liver to the systemic venous system.
Overview of transjugular intrahepatic portosystemic shunts (TIPS)
网页2023年12月18日 · Placement of a transjugular intrahepatic portosystemic shunt (TIPS) reduces elevated portal pressure by creating a low-resistance channel between the hepatic vein and an intrahepatic branch of the portal vein using angiographic techniques (figure 1).
Acquired portosystemic collaterals: anatomy and imaging
网页2015年2月16日 · Portosystemic shunts are enlarged vessels that form collateral pathological pathways between the splanchnic circulation and the systemic circulation. Although their causes are multifactorial, portosystemic shunts all have one mechanism in common-increased portal venous pressure, which diverts the blood flow from the gastrointestinal tract to ...
Understanding the Pathophysiology of Portosystemic Shunt by …
网页2016年10月27日 · Portosystemic shunt (PSS) is a common condition and usually follows portal hypertension or liver trauma, including iatrogenic injury [1 – 3]. However, congenital or spontaneous PSS can also occur and presents diagnostic …
Congenital portosystemic shunt | Radiology Reference Article ...
网页The term “ portosystemic shunt ” can be used to refer to any pathology where blood from the splanchnic venous circulation is shunted to an alternate venous drainage pathway without passing through the hepatic sinusoids. When used by itself, the term “portosystemic shunt” is more frequently associated with secondary causes, such as ...