ArticleThe journal of trauma and acute care surgery2017
External validation of the Air Medical Prehospital Triage score for identifying trauma patients likely to benefit from scene helicopter transport.
Article in The journal of trauma and acute care surgery, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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The trial behind it
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Who cites it
6 citing papers in PubMed.
- Racial and Ethnic Disparities in Use of Helicopter Transport After Severe Trauma in the US.JAMA surgery · 2025Article
- Investigating the barriers to air medical services in accidents and disasters in Iran and suggesting solutions: a qualitative study.BMC research notes · 2024Article
- Prehospital triage tools across the world: a scoping review of the published literature.Scandinavian journal of trauma, resuscitation and emergency medicine · 2022Article
- Factors affecting development of air ambulance base: A systematic review and thematic analysis.Journal of education and health promotion · 2021Review
- Article
- Characteristics of scene trauma patients discharged within 24-hours of air medical transport.International journal of critical illness and injury scienceArticle
Corrections and comments
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Authors and funding
9 authors.
Funding
Abstract
backgroundThe Air Medical Prehospital Triage (AMPT) score was developed to identify injured patients who may benefit from scene helicopter emergency medical services (HEMS) transport. External validation using a different data set is essential to ensure reliable performance. The study objective was to validate the effectiveness of the AMPT score to identify patients with a survival benefit from HEMS using the Pennsylvania Trauma Outcomes Study registry.
methodsPatients 16 years or older undergoing scene HEMS or ground EMS (GEMS) transport in the Pennsylvania Trauma Outcomes Study registry 2000-2013 were included. Patients with 2 or higher AMPT score points were triaged to HEMS, while those with less than 2 points were triaged to GEMS. Multilevel Poisson regression determined the association of survival with actual transport mode across AMPT score triage assignments, adjusting for demographics, mechanism, vital signs, interventions, and injury severity. Successful validation was defined as no survival benefit for actual HEMS transport in patients triaged to GEMS by the AMPT score, with a survival benefit for actual HEMS transport in patients triaged to HEMS by the AMPT score. Subgroup analyses were performed in patients treated by advanced life support providers and patients with transport times longer than 10 minutes.
resultsThere were 222,827 patients included. For patients triaged to GEMS by the AMPT score, actual transport mode was not associated with survival (adjusted relative risk, 1.004; 95% confidence interval, 0.999-1.009; p = 0.08). For patients triaged to HEMS by the AMPT score, actual HEMS transport was associated with a 6.7% increase in the relative probability of survival (adjusted relative risk, 1.067; 95% confidence interval, 1.040-1.083, p < 0.001). Similar results were seen in all subgroups.
conclusionsThis study is the first to externally validate the AMPT score, demonstrating the ability of this tool to reliably identify trauma patients most likely to benefit from HEMS transport. The AMPT score should be considered when protocols for HEMS scene transport are developed and reviewed. LEVEL OF EVIDENCE: Epidemiologic/prognostic study, level III; therapeutic/care management study, level IV.
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