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Associations Between Composite Host Vulnerability Score and Transfusion Outcomes After Trauma.

Yun-Chul Park1, Young-Goun Jo1, Hyun-Seok Jang1

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Host vulnerability, assessed by a composite score, significantly predicts bleeding severity and transfusion needs in trauma patients. This score offers valuable risk stratification beyond traditional injury severity measures.

Keywords:
immuneinflammationprognosisrisk stratificationtrauma

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Area of Science:

  • Trauma research
  • Clinical outcomes
  • Hemorrhagic shock

Background:

  • Traditional trauma outcomes focus on injury severity and acute physiology.
  • Host vulnerability (physiologic and nutritional status) may influence bleeding and transfusion needs.
  • The predictive value of host vulnerability beyond established factors is not fully understood.

Purpose of the Study:

  • To assess if a composite score of host vulnerability at presentation predicts transfusion requirements in adult trauma patients.
  • To determine if this score provides additional risk information beyond injury severity and acute physiologic derangement.

Main Methods:

  • Retrospective cohort study of 4105 adult trauma patients.
  • Host vulnerability composite score (CE) based on hypoalbuminemia, anemia, and reduced renal function.
  • Logistic regression models adjusted for age, Injury Severity Score (ISS), lactate, and systolic blood pressure (SBP) to evaluate transfusion outcomes (any transfusion, massive transfusion).

Main Results:

  • Transfusion requirements increased with higher CE scores (any transfusion: 21.7% to 78.6%; massive transfusion: 1.9% to 23.1%).
  • Each 1-point increase in CE score was independently associated with higher odds of any transfusion (aOR 3.21) and massive transfusion (aOR 1.73).

Conclusions:

  • A composite score of host vulnerability at presentation is associated with bleeding severity and transfusion needs post-trauma.
  • This score offers additional risk stratification for hemorrhagic outcomes beyond established factors.
  • Simple laboratory markers can aid in early risk stratification for trauma patients.