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Immunomodulation in transfused trauma patients.

Rachael P Jackman¹

¹Blood Systems Research Institute, San Francisco, California, USA. rjackman@bloodsystems.org

Current Opinion in Anaesthesiology

|January 11, 2013

Summary

Traumatic injury and blood transfusion significantly alter the immune system, leading to immunosuppression that increases infection risk. This rapid immune response is similar across various injuries and complicates treatment development.

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Area of Science:

Immunology
Trauma Medicine
Transfusion Medicine

Background:

Traumatic injury is a significant health concern, often requiring allogeneic blood transfusions.
Both trauma and transfusion possess known immunomodulatory effects, but their combined impact remains under-investigated.

Purpose of the Study:

To investigate the combined immunomodulatory effects of traumatic injury and blood transfusion.
To understand the scope and kinetics of the immune response following trauma and transfusion.

Main Methods:

Review of existing literature on trauma-induced immunomodulation and transfusion effects.
Analysis of immunological components affected by combined trauma and transfusion.

Main Results:

Traumatic injury profoundly impacts the immune system, inducing a strong, early immunosuppressive state.
Transfusion's contribution to immune dysregulation is minor compared to the trauma response.
The trauma response exhibits early immunosuppressive, proinflammatory, and antimicrobial elements, consistent across injury types.

Conclusions:

The immune system undergoes rapid, massive reorganization after trauma and transfusion, increasing susceptibility to infection and organ failure.
Developing treatments to manage this complex immune dysregulation poses significant challenges.