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IDENTIFYING PRE-HOSPITAL FACTORS WHICH INFLUENCE OUTCOME FOR MAJOR TRAUMA PATIENTS IN A REGIONAL TRAUMA NETWORK: AN EXPLORATORY STUDY
  1. Lee Thompson1,2,3,
  2. Michael Hill2,
  3. Caroline Davies1,3,
  4. Gary Shaw1,3
  1. 1North East Ambulance Service
  2. 2Northumbria University
  3. 3Northern Trauma Network

Abstract

Background Major trauma is often life threatening or life changing and is the leading cause of death in the United Kingdom for adults aged≤45 years. The aim of this exploratory study was to identify pre-hospital factors influencing patient outcomes for major trauma within the Northern Trauma Network.

Method Secondary data analysis of a combined data set of pre-hospital audit data and patient outcome data from the Trauma Audit Research Network (n=1033) was undertaken. Variables included mechanism of injury, age, physiological indices, timings and skill mix. Principle outcome measures included Mortality data and Glasgow Outcome Scales.

Results Glasgow Coma Scores proved a significant predictor of mortality in major trauma (p<0.00). Amongst other physiological indices, systolic blood pressure ≤90 mm Hg. was associated with both increased mortality (p≤0.004) and poorer morbidity (p≤0.021). Respiration rate <14/minute was also significantly predictive of morbidity (p≤0.03) and mortality (p<0.00). Prolonged response times to the most critically injured patients (p<0.031), and increasing casualty age were significantly associated with poorer outcomes. The attendance of a Doctor was significantly associated with increased mortality (p≤0.036) perhaps validating existing resource despatching practices.

Predictors of positive outcomes included the presence of a Doctor when on-scene time ≤50 minutes (p≤0.015), crew arrival on-scene ≤10 minutes (p<0.046) and on-scene time ≤50 minutes (p<0.015).

Conclusion These findings validate GCS, BP and Respiratory Rate values as valid triggers for transport to a Major Trauma Centre. Analysis of the interactions between arrival time, time-on-scene, skill mix and age demand further exploration but tentatively validate the concept of a ‘Golden Hour’ and suggest the potential value of a ‘load and go and play on the way’ approach.

  • prehospital care

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