Portacaval shunting is a surgical treatment to create new connections between two blood vessels in your abdomen. It is used to treat people who have severe liver problems.
Shunt – portacaval
Portacaval shunting is a major surgical procedure. The procedure involves a large cut in the belly area (abdomen). The surgeon then makes a connection between the portal vein (which supplies most of the liver’s blood), and the inferior vena cava (the vein that drains blood from most of the lower part of the body).
The new connection diverts blood flow way from the liver. This reduces blood pressure in the portal vein and decreases the risk of a tear (rupture) and bleeding from the veins in the esophagus and stomach.
Why the Procedure Is Performed
Normally, blood coming from your esophagus, stomach, and intestines first flows through the liver. When your liver is very damaged and there are blockages, the blood cannot flow through it easily. This is called portal hypertension (increased pressure and backup of the portal vein). The veins can then break open (rupture), causing serious bleeding.
Common causes of portal hypertension are:
Blood clotsin a vein that flows from the liver to the heart
Too much iron in the liver
Viral hepatitis(hepatitis B or C)
When portal hypertension occurs, you may have:
Bleeding from veins of the stomach, esophagus, or intestines (variceal bleeding)
Buildup of fluid in the belly (
Buildup of fluid in the chest (hydrothorax)
Portacaval shunting diverts part of your blood flow from the liver, and improves blood flow in your stomach, esophagus, and intestines.
Portacaval shunting is most often done when
Risks for any anesthesia are:
Reactions to medications
Risks for any surgery are:
Heart attackor stroke
Complications from this procedure include:
- Liver failure
- Worsening of hepatic encephalopathy (a disorder that affects concentration, mental status, and memory; may lead to coma)
After the Procedure
People with liver disease are at a much higher risk for complications after surgery.
Patients with severe liver disease that is getting worse should be evaluated for liver transplant.