Thromboelastogram (TEG)

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Subject: Thromboelastogram (TEG)

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Definition

  • TEG uses equipment (TEG analyzer) that records the process of blood coagulation, including fibrinolysis and platelet defects. It measures in vitro the kinetics of clot formation and dissolution by a mechanical process, which monitors very low shear elasticity changes. The different parameters represent different aspects of the patient's hemostasis.

Use

  • The TEG is commonly used for cardiac bypass surgery, providing a rapid assessment of anticoagulation (heparin), restoration of coagulation with the use of protamine sulfate, excess fibrinolysis, and platelet function during the procedure.

  • Its usefulness has been demonstrated since it reduces the number of red cell or platelet transfused during open heart surgery or shortly after its termination.

 
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