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Clinical Focus: Cardiometabolic Conditions - Original Research

An evaluation of pre-hospital emergency medical systems for suspected ST-elevation myocardial infarction in Colorado

, , &
Pages 777-782 | Received 25 Feb 2016, Accepted 23 Sep 2016, Published online: 06 Oct 2016
 

ABSTRACT

Objectives: Patients presenting with ST-elevation myocardial infarction (STEMI) benefit from rapid cardiac reperfusion therapy. Emergency medical service (EMS) agencies can improve patient outcomes by calling STEMI alerts to the receiving facility. The aim of this study was to evaluate the use of pre-hospital activation systems for suspected ST-elevation myocardial infarctions (STEMI) throughout Colorado.

Methods: A cross sectional, survey design was utilized to collect all data from EMS agencies in Colorado. A univariable logistic regression model was used to identify factors predictive of an agency reporting that they utilize a STEMI activation protocol.

Results: 84.5% [95% CI: 78.3 to 90.7%] of agencies included indicate that they utilize a STEMI activation protocol. Based on the logistic regression analysis, the number of EMT employees was significantly associated with whether or not an agency indicates that they utilize a STEMI activation protocol. For every 10% increase in the number of EMTs employed by an EMS agency, there was a 3.0 [95% CI: 1.5 to 6.0, p = 0.0012] fold increase in the odds of the agency indicating they utilize a STEMI activation protocol.

Conclusions: Our study provides evidence that larger agencies are more likely to utilize a STEMI activation protocol. In areas without a STEMI system of care, improvements in smaller agencies that cover more ground (with longer transport times) should be the focus for protocol implementation. Based on the current prevalence of such training, competency based training in reading ST-elevations on ECG should be considered by EMS agencies.

Declaration of interest

The authors have no relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript. This includes employment, consultancies, honoraria, stock ownership or options, expert testimony, grants or patents received or pending, or royalties.

Additional information

Funding

This study was partially funded by a research grant provided by Rocky Vista University, College of Osteopathic Medicine (grant number 20130016).

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