portacaval anastomosis

1. a surgical technique in which the hepatic portal vein is joined to the inferior vena cava. Blood draining from the abdominal viscera is thus diverted past the liver. It is used in the treatment of portal hypertension, since - by lowering the pressure within the veins of the stomach and oesophagus - it prevents serious bleeding into the gastrointestinal tract.
2. any of the natural communications between the branches of the hepatic portal vein in the liver and the inferior vena cava.

Medical dictionary. 2011.

Look at other dictionaries:

  • Portacaval anastomosis — A portacaval anastomosis (also known as portal systemic anastomosis ) is a specific type of anastomosis that occurs between the veins of portal circulation and those of systemic circulation.Specific types include: It can be one of the conditions… …   Wikipedia

  • portacaval anastomosis — portacaval shunt 1) a surgical technique in which the hepatic portal vein is joined to the inferior vena cava. Blood draining from the abdominal viscera is thus diverted past the liver. It is used in the treatment of portal hypertension, since –… …   The new mediacal dictionary

  • Анастомоз Портокавальный (Portacaval Anastomosis, Portacaval Shunt) — 1. Хирургический анастомоз между воротной веной печени и нижней полой веной. Кровь, отходящая от расположенных в брюшной полости органов, в этом случае, проходит, минуя печень. Этот вид анастомоза применяется в процессе лечения портальной… …   Медицинские термины

  • portacaval shunt — portacaval anastomosis …   The new mediacal dictionary

  • portacaval shunt — n a surgical shunt by which the portal vein is made to empty into the inferior vena cava in order to bypass a damaged liver * * * see portacaval anastomosis * * * a portosystemic shunt between the portal vein and vena cava, done for treatment of… …   Medical dictionary

  • Anastomosis — Vein skeleton of a Hydrangea leaf An anastomosis (plural anastomoses, from gr. ἀναστόμωσις, communicating opening) is the reconnection of two streams that previously branched out, such as blood vessels or leaf veins. The term is used in medicine …   Wikipedia

  • portacaval — Concerning the portal vein and the inferior vena cava. * * * por·ta·ca·val .pȯrt ə kā vəl adj extending from the portal vein to the vena cava <portacaval anastomosis> * * * por·ta·ca·val (por″tə kaґvəl) pertaining to or… …   Medical dictionary

  • Anastomosis — The connection of normally separate parts or spaces so they intercommunicate. An anastomosis may be naturally occurring or artificially constructed and be created during the process of embryonic development or by surgery, trauma or pathological… …   Medical dictionary

  • Circulatory anastomosis — A circulatory anastomosis is a connection (an anastomosis) between two blood vessels, such as between arteries (arterio arterial anastomosis), between veins (veno venous anastomosis) or between an artery and a vein (arterio venous anastomosis).… …   Wikipedia

  • splenorenal anastomosis — a method of treating portal hypertension by joining the splenic vein to the left renal vein. Compare portacaval anastomosis …   Medical dictionary

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