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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 : 2015  |  Volume : 20  |  Issue : 4  |  Page : 184-188

Correlation of pre- and post-operative liver function, duct diameter at porta hepatis, and portal fibrosis with surgical outcomes in biliary atresia


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:
Prof. Veereshwar Bhatnagar
Department of Pediatric Surgery, All India Institute of Medical Sciences, New Delhi - 110 029
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-9261.161040

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Background and Aims: Extrahepatic biliary atresia is one of the most challenging conditions in pediatric surgery. The definition of prognostic factors is controversial. Surgical outcomes after bilioenteric drainage procedures are variable. This study attempts to correlate the pre- and post-operative liver histology with clinical factors in order to define early predictors of success. Materials and Methods: Twenty consecutive patients, treated by Kasai's portoenterostomy (KP) over a 3 years period were included in this study. Tissue obtained from the porta hepatis was analyzed for duct size using an optical micrometer and was categorized into three types: I-No demonstrable ducts; II - <50 μ; III - >50 μ. Pre- and post-operative liver biopsy was analyzed for architectural changes and fibrosis; hepatic fibrosis was quantified using existing criteria. Pre- and post-operative liver function tests (LFTs) were also done. Surgical outcomes were defined as: (A) Disappearance of jaundice within 3 months; (B) initial disappearance of jaundice with recurrence by 6 months and (C) persistence of jaundice. Duct diameters, fibrosis score, and LFT were correlated with age and clinical outcomes. Results: The surgical outcomes were: A-6 patients (30%), B-6 patients (30%), C-8 patients (40%). The duct size at the porta was I-3 patients, II-11 patients, and III-4 patients (tissue was not available in 2 cases). The change in total serum bilirubin (mg%) from pre- to post-operative period was 13.6 ± 3.9 (Group A), 4.6 ± 2.8 (Group B), and 3.4 ± 3.9 (group C) (P < 0.001) and direct and indirect fractions followed a similar trend; the changes in liver enzymes were not significant. The changes in hepatic histopathological changes (ballooning of hepatocytes, giant cells, cholestasis, portal tract infiltration, ductular proliferation, lobular necrosis, and fibrosis) were also not significant but there was a definite trend in the change in fibrosis -1.500 ± 1.643 (Group A), 0.667 ± 2.582 (Group B), and 1.500 ± 1.852 (Group C) - reduction of fibrosis with good results and progression of fibrosis with poor results. Conclusions: Following KP, jaundice persisted in 40% patients; it disappeared in 60% patients but reappeared in half of these patients 6 months postoperatively. The duct size at the porta hepatis did not correlate with age or surgical outcome. Serum bilirubin showed the best correlation with surgical outcome. Postoperative changes in hepatic fibrosis seem to have some bearing on surgical outcomes-progressive fibrosis is a poor prognostic factor.






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