portacaval

(redirected from Portacaval anastomosis)
Also found in: Dictionary, Wikipedia.
Related to Portacaval anastomosis: portacaval shunt, portal hypertension, portal vein

portacaval

 [por″tah-ka´val]
pertaining to or connecting the portal vein and inferior vena cava.

por·ta·ca·val

, portocaval (pōr'tă-kā'văl),
Concerning or relating to the portal vein and the inferior vena cava.

portacaval

/por·ta·ca·val/ (port″ah-ka´val) pertaining to the portal vein and inferior vena cava.

por·ta·ca·val

, portocaval (pōr'tă-kā'văl, pōrtŏ-kāvăl)
Concerning the portal vein and the inferior vena cava.

portacaval, portocaval

pertaining to or connecting the portal vein and caudal vena cava.

portacaval anastomosis
surgical, traumatic or congenital defect resulting in an anastomosis between the portal vein and the caudal vena cava including a portal-azygos anastomosis, or the portal vein and the hepatic artery resulting in portal hypertension. More commonly provides the physical basis for a portacaval shunt.
portacaval shunt
single or multiple abnormalities, intrahepatic or extrahepatic in location, result in venous blood from the intestine bypassing the liver. Hyperammonemia results and leads to neurological dysfunction (hepatic encephalopathy). Other clinical signs include weight loss or poor growth from an early age, vomiting, diarrhea, voracious appetite and polydipsia.