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Study of Intrahepatic Biliary Architecture in Patients Operated for Extrahepatic Biliary Atresia using Magnetic
Ajay Verma1, Anjan Kumar Dhua1, Devasenathipathy Kandasamy2
1Department of Paediatric Surgery, All India Institute of Medical Sciences, New Delhi, India.
Aim:
The aim is to study intrahepatic biliary architecture in patients following Kasai's portoenterostomy for extrahepatic biliary atresia using magnetic resonance cholangiopancreatography (MRCP).
Materials And Methods:
It is a prospective observational study in a cohort of patients who have survived with a complete jaundice-free period for at least 1 year. MRCP was done to look for various intrahepatic architectural changes during their last visit. Findings were correlated with liver functions and growth and development.
Results:
Twenty-one patients were included in the study. The male-to-female sex ratio was 1.6:1, the median age at surgery was 75 days (18-140 days), and the median age at magnetic resonance imaging (MRI) was 4 years (18 months-18 years). More than 2 years of follow-up was in seven patients. Left lobe hypertrophy was observed in six patients, right lobe hypertrophy was in three patients, intrahepatic biliary tract dilatation was in five patients, and altered signal intensity between intrahepatic ducts was seen in five patients. In addition, hypointense foci in the spleen were seen in one patient. Twelve children had normal weight for their age, ten children had the normal height for their age, and gamma-glutamyl transferase was elevated in all children. Only four children had a history of fever and jaundice.
Conclusions:
The patients who survive after successful surgical intervention have near-normal liver gross architecture as on MRI/MRCP. Occasional findings of dilatation and lobar atrophy/hypertrophy are possible, especially in those with a history of cholangitis. The survivors also have acceptable growth parameters and normal liver functions.
