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Measurement of Factor V Activity in Human Plasma Using a Microplate Coagulation Assay
Published on: September 9, 2012
Coagulation factors in chronic liver disease
Insights
Chronic liver disease causes complex clotting defects involving multiple factors. Thrombotest effectively identifies factor IX deficiency, serving as a valuable liver function test.
Area of Science:
- Hematology
- Hepatology
- Clinical Chemistry
Background:
- Chronic liver disease (CLD) frequently leads to hemostatic abnormalities.
- Coagulopathy in CLD can increase bleeding risk during procedures like surgery or biopsy.
Purpose of the Study:
- To investigate coagulation defects in patients with CLD.
- To evaluate the utility of Thrombotest as a liver function test for detecting factor IX deficiency.
Main Methods:
- Coagulation studies were performed on 30 patients with CLD.
- Assessed levels of coagulation factors V, VII, IX (Christmas factor), and prothrombin.
- Utilized Thrombotest and one-stage prothrombin time assays.
Main Results:
- A complex clotting defect involving factors V, VII, IX, and prothrombin was observed.
- Some patients exhibited factor IX depression despite a normal one-stage prothrombin time.
- Thrombotest proved effective in identifying factor IX deficiency in this cohort.
Conclusions:
- Coagulation factor assessment is crucial for patients with CLD undergoing invasive procedures.
- Thrombotest can serve as a useful additional liver function test for detecting factor IX deficiency.
Abstract:
Coagulation studies were carried out on 30 patients with chronic liver disease. The clotting defect was complex and involved factors V, VII, IX (Christmas factor), and prothrombin. Some patients showed a significant depression of factor IX in the presence of a normal one-stage prothrombin time. Thrombotest was found to be a good indicator of factor IX deficiency in this group of patients and may be of use as an additional liver function test. The screening of patients with liver disease for surgery or liver biopsy should assess the coagulation factors involved in both intrinsic and extrinsic thromboplastin generation.
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