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Journal of Indian Association of Pediatric Surgeons
     Journal of Indian Association of Pediatric Surgeons
Official journal of the Indian Association of Pediatric Surgeons         
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 ORIGINAL ARTICLE
Year : 2012  |  Volume : 17  |  Issue : 4  |  Page : 147-152

Extrahepatic biliary atresia: Correlation of histopathology and liver function tests with surgical outcomes


1 Department of Pediatric Surgery, All India Institute of Medical Sciences, New Delhi, India
2 Department of Pathology, All India Institute of Medical Sciences, New Delhi, India

Correspondence Address:
Veereshwar Bhatnagar
Professor and Head, Department of Pediatric Surgery, All India Institute of Medical Sciences, New Delhi-110029
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-9261.102326

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Aims: To correlate the age at surgery, liver function tests, and hepatic and portal tract histo-pathological changes with surgical outcome in the form of disappearance of jaundice in extrahepatic biliary atresia (EHBA). Materials and Methods : This is a retrospective study of 39 cases of EHBA. There were 19 males and 10 females. Kasai's portoenterostomy (KPE) along with liver biopsy was performed in these patients; for purpose of correlation this biopsy was considered to be the preoperative biopsy. These patients were divided into three groups based upon surgical outcome: (A) disappearance of jaundice; (B) initial disappearance of jaundice with recurrence after 3 months; and (C) persistence of jaundice. Postoperatively, liver function tests and liver biopsies were repeated at 3 months after the KPE. Results : There were 11 patients in group A (28%), 21 patients in group B (54%), and seven patients in group C (18%). The age at surgery was comparable in all the three groups. The postoperative levels of serum bilirubin, alkaline phosphatase (ALP), and gamma glutamyl transpeptidase (GGTP) showed statistically significant improvement as compared with the preoperative levels in group A and B patients. Patients belonging to group C showed no improvement in the liver functions following surgery. The preoperative hepatic histopathological changes (hepatocellular alteration, cholestasis, bile ductular proliferation, and bile duct inflammation) showed a significant difference among the three groups; patients with lesser degrees of pre-existing histopathological changes had better outcome following surgery. Fibrosis was seen in all the three groups preoperatively but the difference was not statistically significant. Group C had significant fibrosis in more than 50% patients. Additional findings, viz. ductal plate malformation (9 patients, 23%) and giant cell transformation (19 patients, 49%) did not show any correlation with surgical outcomes. Conclusions : The liver function tests and the histopathological features appeared to affect the final surgical outcome of these patients. Higher degree of cholestasis, hepatocellular alteration, bile ductule proliferation, bile duct inflammation showed definite correlation with poor surgical outcome. High grade hepatic fibrosis and portal edema showed a trend towards poor outcome but did not achieve statistical significance.






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