Digestive Diseases: Liver Transplantation
The liver is the body's largest internal organ, weighing about 3 pounds in adults. It is located below the diaphragm on the right side of the abdomen.
The liver performs many complex functions in the body, including:
- Produces most proteins needed by the body.
- Metabolizes, or breaks down, nutrients from food to produce energy, when needed.
- Prevents shortages of nutrients by storing certain vitamins, minerals and sugar.
- Produces bile, a compound needed to digest fat and to absorb vitamins A, D, E and K.
- Produces most of the substances that regulate blood clotting.
- Helps your body fight infection by removing bacteria from the blood.
- Removes potentially toxic byproducts of certain medications.
When is a liver transplant needed?
Liver transplantation is considered when the liver no longer functions adequately (liver failure). Liver failure can occur suddenly (acute liver failure) as a result of infection or complications from certain medications or it can be the end result of a long-term problem. The following conditions may result in liver failure:
- Chronic hepatitis with cirrhosis.
- Primary biliary cirrhosis (a condition where the immune system inappropriately attacks and destroys the bile ducts causing liver failure).
- Sclerosing cholangitis (scarring and narrowing of the bile ducts inside and outside of the liver causing the backup of bile in the liver which can lead to liver failure).
- Biliary atresia (malformation of the bile ducts).
- Wilson's disease (a rare inherited disease with abnormal deposition of copper throughout the body, including the liver, causing it to fail).
- Hemochromatosis (a common inherited disease where the body is overwhelmed with iron).
- Alpha-1 antitrypsin deficiency (an abnormal accumulation of alpha-1 antitrypsin protein in the liver, resulting in cirrhosis).
- Liver cancer
© 2005-2014 WebMD, LLC. All rights reserved.
Source article on WebMD