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Using critical administration thresholds to predict abbreviated laparotomy.

Stephanie A Savage1, Joshua J Sumislawski, Martin A Croce

  • 1From the University of Tennessee Health Sciences Center, Memphis, Tennessee.

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|September 25, 2014
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Summary
This summary is machine-generated.

The Critical Administration Threshold (CAT) can predict the need for abbreviated laparotomy (AL) in trauma patients. CAT+ status identifies patients who benefit from early AL, reducing operative time and improving outcomes.

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Area of Science:

  • Trauma surgery
  • Critical care medicine
  • Hemorrhagic shock management

Background:

  • Early identification of trauma patients needing abbreviated laparotomy (AL) is crucial to prevent prolonged operative times, hypothermia, and acidosis.
  • The Critical Administration Threshold (CAT) is a novel metric for large-volume transfusions, simultaneously assessing rate and volume.
  • CAT may serve as a trigger to identify patients who would benefit from AL.

Purpose of the Study:

  • To determine if the Critical Administration Threshold (CAT) is predictive of the need for abbreviated laparotomy (AL) in trauma patients.

Main Methods:

  • A retrospective analysis of trauma patients receiving at least 1 unit of blood on Day 1 of admission.
  • Patients were classified based on meeting CAT (≥ 3 units of blood in 1 hour) within 24 hours.
  • Multivariate Cox proportional hazard models were used to assess the relationship between CAT and AL.

Main Results:

  • 169 patients were included; 79% of AL patients were CAT+ compared to 36% of patients with closed fascia (p < 0.0001).
  • 94% of patients reached CAT+ status before operative therapy completion (mean time to CAT+ status: 163 minutes).
  • CAT+ status was associated with a nearly threefold increased risk for AL (OR, 2.723; 95% CI, 1.256-5.906).

Conclusions:

  • Severely injured patients requiring large-volume transfusions typically reach the CAT threshold rapidly (average < 3 hours).
  • CAT+ status is a strong predictor of the need for AL.
  • Failure to perform AL in CAT+ patients trended toward higher mortality, suggesting CAT+ status is a logical early trigger for AL.