Improving Trauma Surgeons Prospective Estimation of the Injury Severity Score

Area of Science:

• Trauma Surgery
• Clinical Outcomes Research
• Medical Informatics

Background:

• The Injury Severity Score (ISS) is crucial for trauma patient stratification but is typically scored post-discharge, limiting its prospective utility.
• Current methods for ISS calculation present challenges for timely clinical decision-making and research.
• Accurate and early prediction of injury severity is essential for effective trauma care.

Purpose of the Study:

• To assess the feasibility of prospective Injury Severity Score (ISS) estimation by trauma surgeons within 24 hours of admission.
• To evaluate the impact of a simple educational aid on the accuracy of prospective ISS estimations.
• To explore the clinical and research implications of early ISS documentation.

Main Methods:

• A phase 1 pilot study investigated the feasibility of prospective ISS estimation (eISS).
• Phase 2 involved eleven surgeons evaluating 178 patients, comparing ISS accuracy with and without an educational aid.
• Concordance rates for abstracted ISS (aISS) and Abbreviated Injury Scale (AIS) were analyzed.

Main Results:

• The educational aid significantly improved ISS concordance: from 74.6% to 85.1% for non-severe injuries (aISS <16) and 78.8% to 83.1% for severe injuries (aISS ≥16).
• Weighted kappa (κ) for ISS concordance improved from 0.53 to 0.72, indicating better agreement.
• Abbreviated Injury Scale (AIS) concordance also showed improvement in five of seven body regions.

Conclusions:

• Prospective ISS estimation by trauma surgeons is feasible and can be enhanced with educational tools.
• Improved accuracy in early injury severity prediction has significant clinical and research benefits.
• Further refinement of educational aids and integration with Electronic Health Records (EHR) can optimize prediction accuracy and clinical workflow adoption.