BACKGROUND/AIMS: There are no pathognomonic features of autoimmune hepatitis (AIH). Its diagnosis requires the exclusion of various other conditions. The aim of this study was to validate indirectly the International Autoimmune Hepatitis Group (IAHG) scoring system in diagnosing AIH. METHODS: Twenty-six patients with Type 1 AIH and female patients with chronic hepatitis B (n=34), chronic hepatitis C (n=25), or toxic hepatitis (n=13) were evaluated according to 9 categories of pretreatment minimum required parameters proposed by IAHG. Aggregate scores of AIH to those of non-AIH groups, which were assessed before and after extracting the proportions of etiologic factors, were also compared and evaluated. RESULTS: While aggregate scores of non-AIH groups, before extracting the proportions of etiologic factors, were 5.2+/-1.8, 5.6+/-1.1, and 7.4+/-1.2 in that order, those of AIH groups were 12.8+/-1.7. These were significantly higher than those of non-AIH groups (p<0.01). All patients in AIH groups and only 1 patient in a non-AIH group showed aggregate scores of more than 10. Aggregate scores after extracting the proportions of etiologic factors were more than 4 in all, except 2, patients. These should have been consistent with 10 if there were no etiologic factors in non-AIH groups. CONCLUSION: The IAHG scoring system might have a relatively excessive importance to the scores of categories excluding distinct etiologies from AIH. It might be difficult to differentiate AIH from chronic liver diseases of indistinct cause based on the IAHG scoring system.
Adult ; Aged ; Autoimmune Diseases/*classification/diagnosis ; English Abstract ; Female ; Hepatitis/*classification/diagnosis/immunology ; Hepatitis B, Chronic/classification/diagnosis ; Hepatitis C, Chronic/classification/diagnosis ; Hepatitis, Toxic/classification/diagnosis ; Human ; Korea ; Male ; Middle Aged

BACKGROUND/AIMS: The authors compared laparoscopic changes of the diseased liver surface according to Shimadas classification with laparoscopic needle biopsy in order to clarify whether the two diagnostic criteria have consistency or discrepancy in each other. By serologicai tests the patients with chronic hepatitis B were 179 cases, chronic hepatitis C 22 cases and NBNC hepatitis 54 cases. Histologically the patients with non-specific reactive hepatitis were 35 cases, chronic lobular hepatitis 20 cases, chronic persistent hepatitis 18 cases, chronic active hepatitis 8~5 cases, subacute hepatic necrosis 32 cases, circumscribed hepatic necrosis 9 cases and liver cirrhosis 56 cases. METHODS: We performed laparoscopy on 255 patients with chronic hepatitis and laparoscopic guided liver needle biopsy was done in all cases. RESULTS: 1) Age incidence of chronic viral hepatitis was peak in chronic hepatitis C, and then that in chronic hepatitis B and NBNC heatitis in decreasing order. 2) Code numbers of liver surfaces were mainly numbers between 200 and 300 in chronic hepatitis B and NBNC hepatitis, but those of chronic hepatitis C were numbers between 300 and 400 which meant advanced patterns. 3) Comparing macroscopic fmdings of liver surfaces with histologic diagnosis by guided liver biopsy, the consistency of two criteria was 83.9% in all cases and the discrepancy was 16.1%. 4) Among the cases with diagnostic discrepancy, the patients showing macroscopically chronic hepatitis but histologically liver cirrhosis were predominant in chronic hepatitis B under the age of 40. In contrast to this, the cases showing surface changes of liver cirrhosis but histologically chronic hepatitis was mainly in chronic hepatitis C over the age of 40. CONCLUSIONS: The above results suggest that laparoscopy and guided liver biopsy may be very useful diagnostic tools to determine correct diagnosis, adequate treatment and prognosis.
Biopsy ; Biopsy, Needle ; Classification ; Diagnosis ; Hepatitis B, Chronic ; Hepatitis C, Chronic ; Hepatitis* ; Hepatitis, Chronic ; Humans ; Incidence ; Laparoscopy ; Liver Cirrhosis ; Liver* ; Necrosis ; Prognosis

BACKGROUND: Although abnormal serum alanine aminotranferase(ALT) and aspartate aminotransferase (AST) clearly indicates certain disease in the liver, normal reversion of serum ALT and AST during the disease process, after the histologic diagnosis of chronic hepatitis, does not ensure that the patients liver would be normal. We considered a partial remission of chronic hepatitis as the levels of serum ALT and AST were persistently normal over 6 months or more, and studied how the histologic findings in the partial-remitted patients of chronic hepatitis would change. MATERIALS: Twenty-three agreed to rebiopsy in the patients of chronic hepatitis with normal level of serum ALT and AST over 6 months. The histologic findings between the first and second liver-biopsied specimens were compared, and the classification of their morpholgy was translated with Batts and Ludwigs new scoring system of chronic hepatitis divided into grade and stage. RESULTS: The grading scores of the first and second biopsy were 2.70 +/- 0.16 and 1.48 +/- 0.14, respectively, and the grading scores of the second biopsy decreased significantly than of the first biopsy (p=0.000); 18 cases(78.1%) were improved, but none was aggravated. The staging scores of the first and second biopsy were 1.870.19 and 1.430.22, respectively, and the staging scores of the secand biapsy also decreased significantly than of the first biopsy (p=0,020); 14 cases (61.2%) were unchanged, 8 cases (34.5%) were improved, but 1 case (4.3%) was aggravated. The stage-improved cases were 7 in the patients of chronic viral hepatitis B, and 1 in the patient of chronic viral hepatitis C, and viral loads of them disappeared. Three cases (13.0%) of them changed into no fibrosis, and 2 cases of them (8.7%) with severe fibrosis improved to mild fibrosis. But, although the levels of serum ALT and AST were persistently normal over average 16 months, grading and staging scores decreased over 2 points in 21.0% and 13.0%, respectively, and the case of which both grading and staging scores improved to normal was only 4.3%. CONCLUSION: Serum ALT and AST level were well correlated with grading. However, the correlation between serum ALT and AST level and staging was poor, even though the triggering factors of chronic hepatitis had been disappeared. Then, we recommand close follow-up and treatment to lessen the fibrogenic reaction of the liver in them.
Alanine* ; Aspartate Aminotransferases ; Aspartic Acid* ; Biopsy ; Classification ; Diagnosis ; Fibrosis ; Follow-Up Studies ; Hepatitis B ; Hepatitis C ; Hepatitis, Chronic ; Humans ; Liver Diseases* ; Liver* ; Viral Load