eISSN: 2449-8238
ISSN: 2392-1099
Clinical and Experimental Hepatology
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SCImago Journal & Country Rank
2/2019
vol. 5
 
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abstract:
Original paper

Preoperative alkaline phosphatase is a potential predictor of short-term outcome of surgery in infants with biliary atresia

Samira Abdel-Wahab Abdel-Aziz
,
Mostafa Mohamad Sira
,
Emad Hamdy Gad
,
Islam Ayoub
,
Mervat Soltan

Clin Exp HEPATOL 2019; 5, 2:155–160
Online publish date: 2019/05/14
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Aim of the study
Biliary atresia (BA) is a fibro-inflammatory cholangiopathy of intra- and extrahepatic biliary radicles. The standard-of-care treatment is surgical restoration of bile flow by Kasai hepatoportoenterostomy (HPE). We aimed to identify the predictors of short-term outcome of the Kasai operation three months postoperatively.

Material and methods
This retrospective study included 107 infants diagnosed with BA by intraoperative cholangiography. All underwent a Kasai operation. The surgical outcome was classified after 3 months post-operatively as successful (bilirubin ≤ 2 mg/dl) or failed (bilirubin > 2 mg/dl). The two groups were compared according to basic clinical, ultrasonographic and histopathological characteristics.

Results
Of the studied patients 29 (27.1%) had a successful outcome while 78 (72.9%) had failed Kasai HPE. Of the preoperative characteristics, lower age and lower serum alkaline phosphatase (ALP) were significantly associated with successful surgical outcome (p = 0.009 and < 0.0001, respectively). In addition, surgical type of BA affected the short-term outcome (p = 0.017), while there was no statistically significant difference regarding the other studied parameters between groups. Age of 69.5 days or less was predictive of successful outcome with 74.4% specificity but with low sensitivity (58.6%), and ALP at a cutoff level of 532.5 U/l or less was predictive of successful outcome with 75.9% sensitivity and 74.4% specificity.

Conclusions
Younger age at the time of surgery and lower ALP are good predictors for the short-term outcome of Kasai HPE with better performance of ALP. This may help to anticipate those who can benefit from surgical correction and those who should be given high priority for transplant referral.

keywords:

age, outcome, alkaline phosphatase, Kasai hepatoportoenterostomy

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