Clinical trial NCT03589430: Haemostatic Imbalance in Patients With Chronic Liver Disease
Official title: Haemostatic Imbalance in Patients With Chronic Liver Disease- Its Relation to Severity and Outcome
Study type: OBSERVATIONAL
Overall status: UNKNOWN
Conditions: Haemostasis Imbalance in Chronic Liver Disease
Lead sponsor: Assiut University
Sponsor class: OTHER
First posted: 2018-07-17
Enrollment: 100
Sex: ALL
Standard ages: CHILD
ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: CASE_ONLY
Time perspective: PROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: patients with liver cirrhosis

Brief summary: To assess the level of protein C, S ,antithrombin in patients with liver cirrhosis To correlate the level of these parameters with the degree of liver cirrhosis To correlate the level of procoagulants with the level of anticoagulant proteins in liver cirrhosis

Detailed description: The liver has a cardinal role in the haemostatic system. Liver has the major role in synthesizing all clotting factors and coagulation inhibitors. Under the physiological conditions the balanced levels of procoagulant and anticoagulants determine the risk of hemorrhage and thrombosis.

In chronic liver disease due to chronic hepatitis and underlying cirrhosis, this haemostatic imbalance leads to hypercoagulability which favors thrombosis despite the longer coagulation times of their plasma, compared with that of healthy individuals. The end stage cirrhosis is however predominately associated with bleeding tendency.

Protein C (PC) and protein S (PS) are vitamin K-dependent glycoproteins, that act as natural anticoagulants.

Antithrombin III (AT III) is a natural anticoagulant that is synthesized exclusively in parenchymal cells of the liver The cause of hypercoagulability in chronic liver disease is the reduced level of protein C and increased level of factor VIIIa .As a consequence of hypercoagulability, the deep vein thrombosis, pulmonary embolism, hepatic and portal vein thrombosis may occur.

Varnika et al 2017 found a significantly low protein C value in both chronic hepatitis and cirrhosis group when compared with control group.

Acquired deficiency of АТ III can be caused by decreased synthesis due to damage to hepatic cells Patients with CLD were (and are still) subjected to laboratory screening with the prothrombin and activated partial thromboplastin times (PT and APTT), and those with abnormal values were (are) treated with plasma or procoagulant agents to correct the abnormalities and to prevent haemorrhage during invasive procedures or to stop bleeding from the gastrointestinal tract. Saja et al., and Saray et al 2009 found significantly low protein C value in both chronic hepatitis and cirrhosis group when compared with control group. This was a sign of reduced hepatocyte synthetic capacity in chronic hepatitis. Zocco et al 2009 showed that in CLD reduction in plasma levels of PC correlate with a higher Model For End-Stage Liver Disease (MELD) score. These findings, including the present one, confirm that levels of PC are sensitive markers .

Determination of the levels of AT III and aminotransferase activity in patients with liver disease may be used for differential diagnoses and the monitoring of disease progression.

Little attention had been paid to the fact that, similar to procoagulant factors, their anticoagulant counterparts (namely protein C \[PC\] and antithrombin) are also reduced to the same extent in this setting.

Eligibility criteria: Inclusion Criteria:

* Patients diagnosed as liver cirrhosis confirmed clinical , biochemical and ultrasonography.
* severity of cirrhosis was assessed according to Child-Pugh score and MELD score.

Exclusion Criteria:

* history of bleeding or thrombotic disorder,
* history of renal disease, diabetes mellitus,
* ongoing or recent pregnancy,
* recent history of transfusion of blood products,
* current anticoagulation therapy.
* Hepatocellular carcinoma

Primary outcomes:
measure: Assesment of haemostatic profile in different stages of liver cirrhosis
timeFrame: baseline
Secondary outcomes:
measure: The value of anticoagulant use in patients with liver cirrhosis
timeFrame: baseline
Other outcomes:
Locations:
Study officials:
References:
citation: Rai V, Dhameja N, Kumar S, Shukla J, Singh R, Dixit VK. Haemostatic Profile of Patients with Chronic Liver Disease- its Correlation with Severity and Outcome. J Clin Diagn Res. 2017 Aug;11(8):EC24-EC26. doi: 10.7860/JCDR/2017/24975.10451. Epub 2017 Aug 1.
citation: Wypasek E, Undas A. Protein C and protein S deficiency - practical diagnostic issues. Adv Clin Exp Med. 2013 Jul-Aug;22(4):459-67.
citation: Hessien M, Ayad M, Ibrahim WM, ulArab BI. Monitoring coagulation proteins during progression of liver disease. Indian J Clin Biochem. 2015 Apr;30(2):210-6. doi: 10.1007/s12291-014-0429-1. Epub 2014 Apr 19.
citation: Tripodi A, Anstee QM, Sogaard KK, Primignani M, Valla DC. Hypercoagulability in cirrhosis: causes and consequences. J Thromb Haemost. 2011 Sep;9(9):1713-23. doi: 10.1111/j.1538-7836.2011.04429.x.