THE PRELAPAROTOMY DIAGNOSIS OF EXTRA-HEPATIC BILIARY ATRESIA
THE PRELAPAROTOMY DIAGNOSIS OF EXTRA-HEPATIC BILIARY ATRESIA
复制标题
DOI:
10.1136/adc.58.8.591
复制
发表时间:
1983-01-01
影响因子:
5.2
通讯作者:
HOWARD, ER
中科院分区:
文献类型:
--
作者:
MANOLAKI, AG;LARCHER, VF;HOWARD, ER
The diagnostic accuracy of laboratory investigations in the prelaparotomy differentiation between extrahepatic biliary atresia (EHBA) and intrahepatic disease (IHD) was assessed in 86 consecutive infants presenting with conjugated hyperbilirubinemia. Forty five infants had EHBA and 41 IHD. The mean serum bilirubin concentration, .gamma.-glutamyltranspeptidase (GGT) activity and the GGT/aspartate transaminase (AST) ratio were appreciably higher in infants with EHBA than in those with IHD. In infants with IHD, however, serum bilirubin concentrations were in the EHBA range in 19 (47%), as were GGT values in 29 (71%), and GGT/AST ratios in 33 (80%). In individual patients, neither increasing nor decreasing GGT values were of diagnostic importance. Failure of biliary excretion of 99mTc-p-Butyl-ida [iminodiacetic acid] occurred in 29 of 30 (97%) patients with EHBA but also in 22 of 23 (67%) with IHD. In all 5 patients with IHD associated with .alpha.1 antitrypsin deficiency, these 4 investigations gave results in the EHBA range. Liver biopsy specimen interpretation, correct in 38 of 42 infants with EHBA, gave an overall accuracy of diagnosis of 86%: the results of 3 further biopsies were equivocal. In 33 of 40 infants with IHD, bile duct obstruction was excluded; the remaining 7, including 4 and .alpha.1 antitrypsin deficiency, showed equivocal changes. Fecal excretion of 131I rose bengal fecal excretion was < 10% in 36 of 37 patients with EHBA and in 9 of 26 with IHD, giving an overall accuracy of diagnosis of 84%. In patients in whom genetic disorders, such as .alpha.1 antitrypsin deficiency had been excluded, interpretation of liver biopsy specimens together with 131I rose bengal fecal excretion remain the most accurate means of identifying those who need surgery for EHBA and of avoiding unnecessary laparotomy in infants with IHD.