Back to Search
Start Over
Native Liver Histology After Successful Portoenterostomy in Biliary Atresia
- Source :
- University of Helsinki
-
Abstract
- Biliary atresia is the most common indication for childhood liver transplantation. The effects of successful portoenterostomy (PE) on native liver histology remain unclear.We assessed changes in native liver histology after a successful PE in relation to liver function and clinical outcomes.In total, 70 native liver biopsies of 44 biliary atresia patients were obtained at PE (n=30), 4.2 years after successful PE (n=23) and 1.1 years after failed PE (n=17), and reviewed for cholestasis, fibrosis, inflammation, and cytokeratin 7 (CK7) immunopositivity (chronic cholestasis). Ten transplant donor livers served as controls.After a successful PE [serum bilirubin 11 (2 to 35) μmol/L at biopsy], histologic native liver cholestasis completely resolved in 83% of the patients and portal inflammation significantly decreased. Nevertheless, enhanced fibrosis [Metavir stage 2 (1-4) vs. 4 (1-4)], bile duct proliferation [grade 2 (1-2) vs. 1 (0-2)], and periportal CK7 immunostaining [grade 1 (0-2) vs. 1 (0-4)] persisted in 100%, 87%, and 61% of subjects, respectively. Metavir fibrosis stage corresponded cirrhosis (stage 4) in 52% of the patients, associated with the presence of portal hypertension, and correlated with serum-conjugated bilirubin (r=0.601, P=0.002), bile duct proliferation (r=0.657, P=0.001), and CK7 positivity (r=0.657, P=0.001). Aspartate transferase to platelet ratio index predicted native liver fibrosis and development of esophageal varices. The degree of fibrosis and portal inflammation at PE were unrelated to native liver survival.Despite resolution of cholestasis and decreasing inflammation, bile duct proliferation, periportal CK7 immunostaining, and fibrosis persist after successful PE. Fibrosis is associated with biochemical cholestasis, bile duct proliferation, CK7 immunopositivity (chronic cholestasis), and development of portal hypertension.
- Subjects :
- Liver Cirrhosis
medicine.medical_specialty
Adolescent
medicine.medical_treatment
Biopsy
Treatment outcome
Portoenterostomy, Hepatic
Liver transplantation
Gastroenterology
Liver Function Tests
Biliary atresia
Biliary Atresia
Internal medicine
medicine
Humans
Liver histology
Child
Inflammation
Cholestasis
medicine.diagnostic_test
business.industry
Liver Diseases
Keratin-7
Follow up studies
Infant, Newborn
Infant
medicine.disease
Treatment Outcome
Child, Preschool
Liver function
business
Liver function tests
Follow-Up Studies
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- University of Helsinki
- Accession number :
- edsair.doi.dedup.....02be799fdfbce3b0cf61e539aea15082