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Pathophysiology of Trauma-Induced Coagulopathy.
Herbert Schöchl1, Felix C F Schmitt2, Marc Maegele3,4
1Ludwig Boltzmann Institute for Experimental and Clinical Traumatology Vienna, Paracelsus Medical University, Salzburg, Austria.
Hamostaseologie
|February 28, 2024
Summary
Trauma-induced coagulopathy (TIC) impairs clotting after severe injury, leading to bleeding and increased mortality. Early recognition and treatment are crucial, as it can later shift to a hypercoagulable state, risking blood clots.
Area of Science:
- Traumatology
- Hemostasis
- Critical Care Medicine
Background:
- Trauma-induced coagulopathy (TIC) is a significant complication following major injury.
- It is characterized by impaired hemostasis, leading to life-threatening bleeding.
- Established TIC is a poor prognostic indicator, associated with higher mortality and complications.
Purpose of the Study:
- To define trauma-induced coagulopathy (TIC).
- To outline the endogenous and exogenous factors contributing to TIC.
- To emphasize the importance of early recognition and treatment of TIC.
Main Methods:
- Review of existing literature on trauma-induced coagulopathy.
- Analysis of factors contributing to hypocoagulability and hypercoagulability in trauma patients.
- Discussion of prognostic implications and treatment strategies.
Main Results:
- TIC involves impaired thrombin generation, fibrinogen depletion, and platelet dysfunction.
- Hypovolemic shock and tissue injury are primary drivers of endogenous TIC.
- Exogenous factors like hypothermia and fluid administration can worsen coagulopathy.
- Established TIC upon admission predicts poor outcomes, including increased mortality.
- Survivors may transition to a hypercoagulable state ('late TIC'), risking thromboembolism.
Conclusions:
- Early identification and tailored management of TIC are essential in trauma care.
- Understanding the dual nature of TIC (hypo- and hypercoagulability) is critical for patient outcomes.
- Further research is needed to optimize treatment protocols for TIC and its sequelae.
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