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Area of Science:

  • Anesthesiology
  • Critical Care Medicine
  • Hematology

Background:

  • Viscoelastic hemostatic assays, including rotational thromboelastometry (ROTEM) and thrombelastography (TEG), are crucial for managing bleeding patients.
  • These assays have demonstrated efficacy in reducing allogeneic blood transfusions, associated costs, and potentially improving patient outcomes in cardiac, trauma, and other surgical settings.

Purpose of the Study:

  • To compare the commonly used viscoelastic hemostatic assays: ROTEM and TEG.
  • To provide guidance for clinicians on the selection and appropriate use of these monitoring systems.
  • To discuss the second-generation assays, ROTEM Sigma and TEG 6S.

Main Methods:

  • Comparative analysis of ROTEM and TEG systems.
  • Review of clinical data and performance characteristics of both assays.
  • Discussion of the technological advancements in second-generation devices (ROTEM Sigma and TEG 6S).

Main Results:

  • Both ROTEM and TEG are effective in guiding transfusion strategies.
  • Differences exist in assay principles, reagents, and reporting, influencing clinical interpretation.
  • Second-generation assays offer enhanced features and potentially improved usability.

Conclusions:

  • Selection between ROTEM and TEG should be based on institutional protocols, available resources, and specific clinical needs.
  • Understanding the nuances of each system is vital for optimal patient management.
  • Continued evaluation of second-generation assays will refine their role in hemostatic management.