Page 72 - Virtual Vascular Vol 6
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Thromboelastography Blood is placed into the disposable cuvette and a disposable pin is attached to a
shaft which is connected with a thin spring (the equivalent to Hartert’s torsion wire
in thrombelastography) and slowly oscillates back and forth. The signal of the pin
suspended in the blood sample is transmitted via an optical detector system. The
instrument measures and graphically displays the changes in elasticity at all stages
of the developing and resolving clot.
This machine is placed in or near the operating theatre and TEM-guided transfusion of
blood products or factor concentrates is an important adjunct in major cardiac, vascular,
hepatic or multi-trauma patients. This machine is a modification of the traditional
Measuring clot elasticity of whole blood samples, the ROTEM delta system enables thromboelastography (TEG).
both quantitative and qualitative assessment of clot status. This
thromboelastometry (TEM) is able to provide rapid differential diagnostic
information to optimize transfusion decisions in surgical and trauma patients, and
investigates the interaction of coagulation factors, their inhibitors, anticoagulant
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drugs, blood cells, specifically platelets, during clotting and subsequent fibrinolysis.
