PreHEART score for emergency medical services triage of chest pain: a randomised trial.
Heart (British Cardiac Society) · 2026-09-29 · Randomised trial
Abstract
BACKGROUND: Triage and support in conveyance decision making of patients with undifferentiated chest pain is the next chapter after validation of the PreHEART score. The PreHEART 3 study tests whether a PreHEART score-guided emergency medical services (EMSs) conveyance is non-inferior to usual care with respect to unexpected serious adverse events in adults attended by EMS for undifferentiated chest pain. METHODS: Pragmatic, randomised, open-label, blinded-endpoint non-inferiority trial was conducted in the Netherlands by Emergency Medical Services. 5170 adults attended by EMS for undifferentiated chest pain, randomised 1:1 to a conveyance decision guided by the prehospital PreHEART score versus usual care. Main outcome measures hierarchical composite of unexpected serious adverse events at 3 days, analysed by win ratio (non-inferiority threshold: lower bound of the 95% CI >0.80). RESULTS: PreHEART-guided care was non-inferior (win ratio 1.01; 95% CI 0.89 to 1.16; p<0.001), with no deaths within 3 days among 1526 non-conveyed patients. It increased non-conveyance (34.6% vs 24.5%), reduced 30-day emergency presentations (risk ratio (RR) 0.88) and lowered costs (-€345). In women, acute coronary syndrome (ACS) diagnosis (RR 1.48) and angiography (RR 1.66) increased; multiplicative interactions were nominally significant but not after Holm correction. CONCLUSIONS : PreHEART-guided EMS conveyance was non-inferior to usual care for serious adverse events, reduced emergency department presentations and costs, and was associated with increased ACS detection and coronary angiography in women. TRIAL REGISTRATION NUMBER: NL-OMON27238.
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Tags
Cost & cost-effectiveness · Decision support tools · Mortality & survival · Paramedics & EMTs · Time intervals
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