Impact of Helicopter Transport on Reperfusion Times and Long-Term Outcomes in Acute Myocardial Infarction Patients in Rural Areas: A Report From the Mie Acute Coronary Syndrome Registry.
Air Medical Journal · 2021-01-01 · Registry study
Abstract
OBJECTIVE: Helicopter emergency medical services (HEMS) are effective for time-sensitive conditions, such as stroke and trauma. However, prognostic data on helicopter transport for acute myocardial infarction (AMI) patients are insufficient. METHODS: We registered 2,681 AMI patients in the Mie Acute Coronary Syndrome Registry and enrolled 163 patients from rural areas to HEMS base hospitals with HEMS or ground emergency medical services (GEMS). They were categorized into 4 groups according to the transportation method for interhospital transfer (direct HEMS: n = 52, direct GEMS: n = 54, interhospital HEMS: n = 32, and interhospital GEMS: n = 25). The primary end point was the emergency medical services (EMS) call-to-balloon time. The secondary end point was 2-year major adverse cardiac and cerebrovascular events. RESULTS: The direct HEMS group was younger than the direct GEMS group (P = .029). The EMS call-to-balloon time was shorter in the direct HEMS and interhospital HEMS groups than in each GEMS group (P = .015 and P = .046). The incidence of 2-year major adverse cardiac and cerebrovascular events tended to be lower in both HEMS groups than in each GEMS group. CONCLUSION: Direct HEMS for AMI in rural areas shortens the time from the EMS call to reperfusion when the transport distance is expected to exceed 30 km, which may result in a better patient prognosis. In addition, prehospital diagnostic modalities, such as 12-lead electrocardiography and echocardiography, may shorten the duration from the EMS call to reperfusion.
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Tags
Helicopter & air ambulance · Interfacility & critical care transport · Mortality & survival · Rural & remote · Time intervals
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