Diagnosing Biliary Atresia
Biliary atresia is a condition that affects infants. It occurs when the bile ducts, which are tubes that carry bile from the liver to the gallbladder and small intestine, become scarred and blocked. As a result, bile cannot flow into the intestine, leading to a buildup of bile in the liver. This buildup causes damage to the liver, including scarring, loss of liver tissue and function, and cirrhosis. Biliary atresia is a life-threatening condition if left untreated. However, with prompt medical treatment, most infants with biliary atresia can survive into adulthood.
To diagnose biliary atresia, doctors use a combination of examinations, screening tests, and procedures. These help in confirming the diagnosis and determining the type, severity, or stage of the condition. The specialists involved in diagnosing biliary atresia may include pediatric gastroenterologists, pediatric hepatologists, or pediatric surgeons.
Examinatoins, tests and procedures used to diagnose biliary atresia include:
- Medical and Family History: The doctor will ask about the infant's medical and family history. They will also inquire about symptoms such as jaundice and changes in stool color.
- Physical Exam: During a physical exam, the doctor will look for signs of jaundice, other birth defects that may occur with biliary atresia, and an enlarged liver or spleen. They will also check the color of the infant's stool and urine.
- Blood Tests: A healthcare professional may take a blood sample from the infant to measure bilirubin levels and check for signs of liver disease.
- Ultrasound: This imaging test uses sound waves to create images of organs like the liver. Ultrasound helps rule out other health problems and look for signs that suggest biliary atresia. However, it cannot confirm a diagnosis on its own.
- Hepatobiliary Scan: This imaging test involves using a small amount of safe radioactive material to create an image of the liver and bile ducts. It can show if there is any blockage in bile flow.
- Liver Biopsy: During a liver biopsy, a doctor takes small pieces of tissue from the liver to examine under a microscope. This can provide further information about the condition.
These tests help confirm a diagnosis of biliary atresia by ruling out other health problems that may have similar symptoms and by identifying signs suggestive of biliary atresia such as jaundice, abnormal liver function tests, and blockage in bile flow.
It's important to note that diagnosing and determining the severity of biliary atresia requires expertise from specialists such as pediatric gastroenterologists, pediatric hepatologists, or pediatric surgeons. They have specialized knowledge and experience in managing conditions affecting the liver and bile ducts in children.
Remember to always consult with your healthcare provider if you have any concerns or questions regarding your child's health.