prevention
The cause of biliary atresia is unknown. Scientists do know this condition is not inherited and some research suggests it may be the result of a viral infection early in life. Therefore prevention methods for biliary atresia are unknown.
diagnosis
Since symptoms of biliary atresia are similar to those of other liver diseases, doctors must perform many tests to have a definitive diagnosis. These tests can include:
- Blood tests: Elevated liver enzymes or bilirubin levels can indicate liver dysfunction.
- Ultrasound examination: An imaging test can reveal abnormalities in the liver or bile ducts.
- Liver biopsy: A small sample of liver tissue may be taken to assess the extent of damage or scarring.
treatment
The main goal in treating biliary atresia is to restore bile flow from the liver and prevent further damage to the liver cells. Treatment options include:
1. Kasai Procedure (Hepatoportoenterostomy)
The Kasai procedure is the most common surgical treatment for biliary atresia. It is a surgical procedure called the Kasai procedure that replaces an infants external bile duct with a piece of their intestine. The Kasai procedure’s goal is to allow bile from the liver to drain into the intestine through the new duct. This procedure is successful about 80% of the time if performed before 3 months old.
What happens after surgery?
After the Kasai procedure, the infant should experience normal development and growth. Additional testing is often required to determine the amount of bile flow from the liver to the digestive tract. If tests show that the bile flow is normal, the child can partake in a regular balanced diet. If the tests show there is a decrease in bile flow, a low-fat diet with vitamin supplementation may be necessary since absorption of fat and fat-soluble vitamins may be reduced.
2. Liver Transplantation
In cases where the Kasai procedure does not repair liver function successfully, or if the liver becomes severely damaged, a liver transplant may be necessary. This involves replacing the diseased liver with a healthy donor liver. Liver transplantation has a high success rate and can dramatically improve the quality of life for affected children.
3. Medications and Supportive Care
In addition to surgery, infants with biliary atresia may require medications to manage symptoms and improve liver function. Nutritional support is also important, as affected children may need extra vitamins, minerals, and fats to ensure proper growth and development.