Focus Where It Matters: Design and Implementation of a Physiology-Based Care Pathway for Traumatic Shock

Traumatic shock lacks a consensus definition, and in blunt-predominant systems its causes are heterogeneous. Simple physiological parameters remain the most universally available basis for early recognition. We describe the design and staged implementation of a physiology-based care pathway for traumatic shock and evaluate its implementation through staff experience.

Single-centre quality-improvement and implementation project at an Australian Level 1 trauma centre, reported per SQUIRE 2.0. The pathway comprised physiology-based activation (systolic blood pressure ≤ 90 mmHg, shock index > 1, prehospital blood or senior clinician concern), structured pre-arrival preparation, trauma bay and equipment standardisation, task-based team roles, prioritised life-saving interventions and senior-led disposition, supported by simulation and embedded quality improvement. Components were implemented between June and November 2022. Evaluation comprised pre-intervention (2021) and post-implementation (2025) staff surveys, summarised as top-box favourability, with cross-sectional characterisation of the shocked cohort. Clinical effectiveness was not assessed.

Of 3667 major trauma patients, 324 (8.8%) met shocked trauma criteria; these patients were younger, more severely injured and had markedly higher mortality (emergency department death 6.8% vs. 0.4%). Favourable ratings of trauma bay equipment and environment rose from approximately one-quarter to 87.0%. Post-implementation, staff reported high favourability for timely life-saving interventions (88.9%), pathway embedding (85.2%) and role confidence (86.5%). Leadership clarity, communication and reliable debriefing did not improve and were identified as ongoing targets.

A physiology-based traumatic shock pathway was feasibly implemented and embedded, with high staff-reported readiness and clear targets for refinement. Effectiveness remains to be established.