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Study: Using Red Lights and Sirens for Emergency Ambulance Response

10 Aug 2020 12:41 AM | AIMHI Admin (Administrator)

Prehospital Emergency Care Source | Comments Courtesy of Matt Zavadsky

Nice research project from very well-respected researchers published in Prehospital Emergency Care. 

The good news is, there appears to be a trend to reduce RLS responses, but still lots of agencies still doing it routinely for all calls.  The 2020 EMS Trend Report from Fitch & Associates/EMS1.com revealed:

And:

Lights and sirens. Fire department-based respondents continue to report the highest rates of using lights and sirens for every call (25%, compared to a 15% average in other agency types). Based on published research questioning the efficacy of responding lights and responses to all 911 calls, and the inherent dangers, this points to a policy and training opportunity to improve patient, provider and community safety.”

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Using Red Lights and Sirens for Emergency Ambulance Response: How Often Are Potentially Life-Saving Interventions Performed?

Jeffrey L. Jarvis, MD; Vaughn Hamilton, MA, EMT-P; Mike Taigman, MA & Lawrence H. Brown, PhD

Published online: 07 Aug 2020

 

Prehospital Emergency Care journal | ALiEM

https://doi.org/10.1080/10903127.2020.1797963

 

Abstract

 

Background

Emergency Medical Services (EMS) often respond to 911 calls using red lights and sirens (RLS). RLS is associated with increased collisions and increased injuries to EMS personnel. While some patients might benefit from time savings, there is little evidence to guide targeted RLS response strategies.

 

Objective

To describe the frequency and nature of 911 calls that result in potentially life-saving interventions (PLSI) during the call.

 

Methods

Using data from ESO (Austin, Texas, USA), a national provider of EMS electronic health records, we analyzed all 911 calls in 2018. We abstracted the use of RLS, call nature, and interventions performed. A liberal definition of PLSI was developed a priori through a consensus process and included both interventions, medications, and critical hospital notifications. We calculated the proportion of calls with RLS response and with PLSI performed, both overall and stratified by call nature.

 

Results

There were 5,977,612 calls from 1,187 agencies included in the analysis. The majority (85.8%) of calls utilized RLS, yet few (6.9%) resulted in PLSI. When stratified by call nature, cardiac arrest calls had the highest frequency PLSI (45.0%); followed by diabetic problems (37.0%). Glucose was the most frequently given PLSI, n = 69,036. When including multiple administrations to the same patient, epinephrine was given most commonly PLSI, n = 157,282 administrations).

 

Conclusion

In this large national dataset, RLS responses were very common (86%) yet potentially life-saving interventions were infrequent (6.9%). These data suggest a methodology to help EMS leaders craft targeted RLS response strategies.

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