Hematological and Metabolic Alterations in Cirrhosis
Complete Blood Count (CBC) Abnormalities
- Thrombocytopenia is present in cirrhotic patients due to splenic sequestration, decreased thrombopoietin production, and accelerated platelet turnover, according to the American Association for the Study of Liver Diseases 1, 3
- Anemia in cirrhotic patients may result from gastrointestinal bleeding, nutritional deficiencies, and hypersplenism, as reported by the American Gastroenterological Association 4, 5
- When hematocrit drops below approximately 25%, erythrocyte concentration becomes insufficient to push platelets toward vessel walls, further impairing coagulation, as noted by the American Gastroenterological Association 4
Comprehensive Metabolic Panel (CMP) Abnormalities
- Elevated bilirubin is a key component of prognostic scores like Child-Pugh and MELD, and reflects liver function deterioration, according to the European Association for the Study of the Liver 2
- Decreased albumin reflects impaired hepatic synthetic function and contributes to ascites and edema formation, as reported by the American Association for the Study of Liver Diseases 1
- Prolonged prothrombin time (PT) and international normalized ratio (INR) result from decreased synthesis of coagulation factors, but these tests are inadequate and often misleading, as noted by the American Association for the Study of Liver Diseases 1, 2, 3
Coagulation Parameters
- Fibrinogen levels are usually normal in compensated cirrhosis but often decreased in end-stage liver disease, according to the European Association for the Study of the Liver 2
- Qualitative fibrinogen modifications (dysfibrinogenemia) may occur in cirrhotic patients, as reported by the European Association for the Study of the Liver 3
Clinical Implications and Monitoring
- Cirrhosis is no longer considered a condition with an overall bleeding tendency, and both prohemostatic and antihemostatic pathways are disturbed in complex ways, as noted by the American Association for the Study of Liver Diseases and the European Association for the Study of the Liver 1, 2
- Global tests of hemostasis (thromboelastography, rotational thromboelastometry) may better assess coagulation status than traditional tests like PT/INR, according to the American Association for the Study of Liver Diseases and the European Association for the Study of the Liver 1, 2
- Prophylactic platelet transfusion is not recommended when platelet count is >50×10⁹/L, and prophylactic fresh frozen plasma to correct INR should be abandoned, as reported by the European Association for the Study of the Liver 5, 6