What is Cavo caval anastomosis?
What is Cavo caval anastomosis?
Cavocaval anastomoses They are the links between v. cava superior and v. cava inferior. Blood can flow in both directions, depending on the placement of the obstacle.
What is caval circulation?
A type of anastomoses which occurs between the veins of portal circulation and veins of systemic circulation. Supplement.
Is the hepatic portal vein and anastomosis?
Esophageal varices commonly develop in individuals with alcoholic cirrhosis of the liver. The second anastomosis is between the paraumbilical veins and the hepatic portal vein. This links the inferior and superior epigastric veins, internal iliac vein, and superficial epigastric vein to the hepatic portal vein.
What side is Portacaval shunt on?
It is concluded that side-to-side portacaval shunt, which decompresses the liver by converting the portal vein into an outflow tract, provides effective treatment of the Budd-Chiari syndrome when the occlusive process is confined to the hepatic veins.
What are the sites of Portocaval anastomosis?
The site of this anastomosis is the lower oesophagus. The anastomosis between the superior rectal veins, which are portal veins, and the inferior and middle rectal veins, which are systemic veins.
What is caval caval shunt?
A portacaval shunt (or portal caval shunt) is a treatment for portal hypertension. A connection is made between the portal vein, which supplies 75% of the liver’s blood, and the inferior vena cava, the vein that drains blood from the lower two-thirds of the body.
What veins are part of the caval system?
Portosystemic anastomosis
| Lower esophagus | Left gastric veins (portal system) -> lower branches of oesophageal veins (systemic veins) |
|---|---|
| Upper part of anal canal | Superior rectal veins (portal) -> inferior and middle rectal veins (systemic) |
| Umbilicus | Paraumbilical veins (portal) -> epigastric veins (systemic) |
Where does azygos vein drain?
superior vena cava
The azygos vein usually originates from the posterior aspect of the inferior vena cava, at the level of the renal veins. It ascends within the posterior mediastinum to the level of T4 before it arches above the right pulmonary hilum. It drains into the superior vena cava just before it pierces the pericardium.
What is caput Medusa?
Caput medusae is one of the cardinal features of portal hypertension. The appearance is due to cutanous portosystemic collateral formation between distended and engorged paraumbilical veins that radiate from the umbilicus across the abdomen to join systemic veins.
What is portal vessel?
The portal vein or hepatic portal vein (HPV) is a blood vessel that carries blood from the gastrointestinal tract, gallbladder, pancreas and spleen to the liver. This blood contains nutrients and toxins extracted from digested contents.
What is Hepatoportal system?
The hepatic portal system is the venous system that returns blood from the digestive tract and spleen to the liver (where raw nutrients in blood are processed before the blood returns to the heart).
What is Gastrocaval shunt?
The second most common pathway is through a direct gastrocaval shunt where the gastric varices drain through the inferior phrenic vein or pericardiophrenic vein directly into the inferior vena cava (IVC). * indicates direct communication between gastric vein and gastrorenal or gastrocaval shunt.
What is another name for portacaval anastomosis?
Portacaval anastomosis. Other names. Porto-systemic anastomosis Portal caval system. A portocaval anastomosis is a specific type of anastomosis that occurs between the veins of the portal circulation and those of the systemic circulation .
What is the difference between Traumatic intestinal fistula and portacaval anastomosis?
Traumatic intestinal fistulas usually occur between two loops of intestine (entero-enteric fistula) or intestine and skin (enterocutaneous fistula). Portacaval anastomosis, by contrast, is an anastomosis between a vein of the portal circulation and a vein of the systemic circulation, which allows blood to bypass…
What are the different areas of anastomosis?
Other areas of anastomosis include the bare area of the liver as it connects to the diaphragm; the posterior portion of the gastrointestinal tract as it touches the posterior abdominal wall; the posterior surface of the pancreas, and the inferior part of the esophagus.
What is the difference between a braided river and anastomosing river?
They can be confused with braided rivers based on their planforms alone, but braided rivers are much shallower and more dynamic than anastomosing rivers. Some definitions require that an anastomosing river be made up of interconnected channels that enclose floodbasins, again in contrast with braided rivers.
