Intestinal vena cava shunt

One of the other shunts is anastomosis and shunting of the superior mesenteric vein and inferior vena cava to reduce portal hypertension. Intestinal lumen H-bridge and side-to-side anastomosis are commonly used. The H-type bridging technique uses the autogenous jugular vein or artificial blood vessel to anastomize the superior mesenteric vein and inferior vena cava. [Figure 2] Due to the large pressure difference between the two ends of the bridge, the anastomotic opening can be unobstructed and it is not easy to embolize. It is better, and can keep part of the portal vein into the liver blood flow, the effect is satisfactory. However, because hepatic encephalopathy is prone to occur after surgery, the operation has two anastomoses, and the operation is complicated, so it is gradually replaced by intestinal cavity side-to-side anastomosis. This operation does not require bridging, simplifies operation, moderate flow, and has less encephalopathy . The diameter of the anastomosis is best with a diameter of 12mm [Figure 3].