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      Potential applications of thromboelastography in patients with acute and chronic liver disease.

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      Gastroenterology & hepatology

      Thromboelastography, cirrhosis, coagulopathy, hemostasis, liver failure

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          Abstract

          Patients with acute and chronic liver disease have long been assumed to have a bleeding tendency on the basis of abnormal results for standard tests of hemostasis. However, recent studies have suggested that hemostasis in patients with liver disease exists in a state of rebalance, in which defects in prohemostatic drivers are compensated for by commensurate changes in antihemostatic drivers. Standard assays of hemostasis cannot evaluate this potential state of rebalance because they only assess components of clot formation and, therefore, may provide misleading information regarding the risk of bleeding, possibly leading clinicians to administer unneeded or even harmful prohemostatic factors. Thromboelastography (TEG) is a commercially available, rapid, point-of-care assay that assesses clot formation in whole blood, including plasmatic and cellular components. Studies using TEG in patients with cirrhosis and acute liver failure have suggested that rebalanced hemostasis exists in many patients, even in the presence of thrombocytopenia and an elevated prothrombin time/international normalized ratio. TEG has also been used to study mechanisms of rebalanced hemostasis and the pathogenesis of specific complications of liver disease, such as variceal rebleeding and infection. Finally, TEG has become widely used to guide factor repletion and fibrinolytic therapy during liver transplantation. The present clinical review will summarize these potential applications of TEG in patients with liver disease.

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          Author and article information

          Journal
          Gastroenterol Hepatol (N Y)
          Gastroenterology & hepatology
          1554-7914
          1554-7914
          Aug 2012
          : 8
          : 8
          Affiliations
          [1 ] Dr. Stravitz is a Professor of Medicine and Medical Director of Liver Transplantation in the Section of Hepatology at the Hume-Lee Transplant Center of Virginia Commonwealth University in Richmond, Virginia.
          Article
          3533209
          23293564

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