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Published on: November 8, 2024
[Massive hemorrhage and mechanisms of coagulopathy in trauma]
N Popović1, Z Blagojević, V Nikolić
1Institut za anesteziju KCS, Beograd.
Insights
Trauma-induced coagulopathy, a complex condition in young adults, significantly increases mortality due to uncontrolled bleeding. Understanding its pathophysiology is crucial for effective trauma patient management.
Area of Science:
- Trauma and Emergency Medicine
- Hematology and Coagulation Disorders
Context:
- Trauma disproportionately affects young adults (15-40 years).
- Massive bleeding is a primary cause of early mortality in trauma patients.
- Coagulopathy is prevalent (25-36%) upon emergency department admission, correlating with trauma severity and mortality risk.
Purpose:
- To elucidate the complex pathophysiology of coagulopathy development in trauma patients.
- To detail the multifactorial nature of trauma-induced coagulopathy.
Summary:
- Trauma-induced coagulopathy involves multiple factors including dilutional coagulopathy, hypothermia, acidosis, hyperfibrinolysis, anemia, and consumption coagulopathy.
- The 'lethal triad' (hypothermia, acidosis, coagulopathy) complicates hemorrhage control, rendering surgical interventions potentially insufficient.
- Non-mechanical bleeding from small vessels becomes life-threatening when spontaneous coagulation fails.
Impact:
- Highlights the critical need for early recognition and management of coagulopathy in trauma.
- Emphasizes that addressing the 'lethal triad' is essential for improving survival rates in severe trauma.
- Provides foundational knowledge for developing targeted therapeutic strategies for trauma-induced bleeding disorders.
Abstract:
Trauma is disease of the young, mainly affecting people between 15-40 years of age. Uncontrolled massive bleeding is the leading cause of early in-hospital mortality, within 48h of admission, and the second leading cause of prehospital death in victims of both military and civilian trauma, accounting for 40-45% of the total fatalities. Coagulopathy develops early after injury and is present in 25-36% of trauma victims upon admission to the emergency department. Coagulopathy correlates to the severity of trauma and is associated with an increased risk of mortality. The aim of this paper is to explain pathophysiology of developing coagulopathy in trauma. The coagulopathy in the trauma patient is complex and multifactorial. It includes: dilutional coagulopathy, hypothermia, acidosis, hyperfibrinolysis, anemia and consumption coagulopathy. When the patient develops the so called "lethal triad" of hypothermia, acidosis and coagulopathy, surgical restoration of vascular integrity may be insufficient to achieve a deffinitive control of blood loss and non-mechanical bleeding from small vessels, usually terminated by spontaneous coagulation, becomes a life-threatening condition.
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