title: Comparison of different diagnostic methods in infants with Cholestasis.
abstract: OBJECTIVE
  To evaluate different methods in differentiating idiopathic neonatal hepatitis from biliary atresia.
  
  
  METHODS
  Sixty-five infants with cholestatic jaundice and final diagnosis of idiopathic neonatal hepatitis and biliary atresia were studied prospectively from September 2003 to March 2006. A thorough history and physical examination were undertaken and the liver enzymes were examined. All cases underwent abdominal ultrasonography, hepatobiliary scintigraphy, and percutaneous liver biopsy. The accuracy, sensitivity, specificity and predictive values of these various methods were compared.
  
  
  RESULTS
  There were 34 girls and 31 boys, among them 46 subjects had idiopathic neonatal hepatitis (age, 61 +/- 17 d) and 19 had biliary atresia (age, 64 +/- 18 d). The mean age at onset of jaundice was significantly lower in cases of biliary atresia when compared to idiopathic neonatal hepatitis cases (9 +/- 13 d vs 20 +/- 21 d; P = 0.032). The diagnostic accuracy of different methods was as follows: liver biopsy, 96.9%; clinical evaluation, 70.8%; ultrasonography, 69.2%; hepatobiliary scintigraphy, 58.5%; and liver enzymes, 50.8%.
  
  
  CONCLUSIONS
  Our results indicate that clinical evaluation by an experienced pediatric hepatologist and a biopsy of the liver are considered as the most reliable methods to differentiate idiopathic neonatal hepatitis and biliary atresia.
authors.affiliation: Department of Pediatric Gastroenterology, Gastroenterohepatology Research Center of Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran. dehghanism@sums.ac.ir
authors.forename: Seyed Mohsen
authors.initials: SM
authors.lastname: Dehghani
authors.forename: Mahmood
authors.initials: M
authors.lastname: Haghighat
authors.forename: Mohammad Hadi
authors.initials: MH
authors.lastname: Imanieh
authors.forename: Bita
authors.initials: B
authors.lastname: Geramizadeh
mesh_terms: D000410:Alanine Transaminase / Q000097:blood; D000469:Alkaline Phosphatase / Q000097:blood; D001219:Aspartate Aminotransferases / Q000097:blood; D001656:Biliary Atresia / Q000097:blood / Q000175:diagnosis / Q000473:pathology; D001707:Biopsy, Needle / Q000379:methods*; D002779:Cholestasis / Q000097:blood* / Q000175:diagnosis* / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D006505:Hepatitis / Q000097:blood / Q000175:diagnosis / Q000473:pathology; D006801:Humans; D007223:Infant; D041781:Jaundice, Obstructive / Q000097:blood / Q000175:diagnosis / Q000473:pathology; D008297:Male; D011237:Predictive Value of Tests; D011446:Prospective Studies; D011877:Radionuclide Imaging / Q000379:methods*; D012680:Sensitivity and Specificity; D014463:Ultrasonography / Q000379:methods*
chemical_list: D001219:Aspartate Aminotransferases; D000410:Alanine Transaminase; D000469:Alkaline Phosphatase