Background/aims: This study was conducted to elucidate the importance of anticoagulant proteins in chronic liver disease and their possible role as markers in determining the severity of the liver disease.
Methods: This study was conducted on 35 patients with cirrhosis, 15 patients with chronic active hepatitis and 10 healthy controls. Coagulation inhibitor proteins such as protein C, protein S and antithrombin, as well as D-dimer level and thrombin time, which reflect fibrin degradation products, were measured. Cirrhotic patients were categorized as Child A, B and C and chronic active hepatitis patients as mild or moderate activity according to the modified Knodell histopathologic classification. The parameters were compared between patient groups and healthy controls.
Results: In comparison with controls, the cirrhotics had significantly decreased protein C, protein S, antithrombin levels and increased D-dimer levels. The Child B and Child C patients differed significantly with respect to protein C and antithrombin levels only. In the chronic active hepatitis patients, protein S, protein C and fibrinogen were within normal limits, whereas antithrombin was low.
Conclusions: In chronic active hepatitis, the antithrombin level may be used as an early marker of hepatocellular damage. In cirrhotics, protein C and antithrombin may be useful for assessment of hepatocellular damage, whereas D-dimer may be important for the transition to decompensation.
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