Treatment
If the intrahepatic biliary tree is unaffected, surgical reconstruction of the extrahepatic biliary tract is possible. This surgery is called a Kasai procedure (after the Japanese surgeon who developed the surgery, Dr. Morio Kasai) or hepatoportoenterostomy. This procedure is not usually curative, but ideally does buy time until the child can achieve growth and undergo liver transplantation.
If the atresia is complete, liver transplantation is the only option. Timely Kasai portoenterostomy (e.g. < 60 postnatal days) has shown better outcomes. Nevertheless, a considerable number of the patients, even if Kasai portoenterostomy has been successful, eventually undergo liver transplantation within a couple of years after Kasai portoenterostomy.
Recent large volume studies from Davenport et al. (Ann Surg, 2008) show that age of the patient is not an absolute clinical factor affecting the prognosis. In the latter study, influence of age differs according to the disease etiology—i.e., whether isolated BA, BASM (BA with splenic malformation ), or CBA(cystic biliary atresia).
It is widely accepted that corticosteroid treatment after a Kasai operation, with or without choleretics and antibiotics, has a beneficial effect on the postoperative bile flow and can clear the jaundice; but the dosing and duration of the ideal steroid protocol have been controversial ("blast dose" vs. "high dose" vs. "low dose"). Furthermore, it has been observed in many retrospective longitudinal studies that steroid does not prolong survival of the native liver or transplant-free survival. Davenport et al. also showed (hepatology 2007) that short-term low-dose steroid therapy following a Kasai operation has no effect on the mid- and long-term prognosis of biliary atresia patients.
Read more about this topic: Biliary Atresia
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