Abstract 144: The Implementation of Fast Emergency Vehicle Preemption System (FAST) Improves the Short-Term Outcomes of Out-of-Hospital Cardiac Arrests (OHCAs) by Reducing the Interval of Call to Arrival
Introduction: The FAST is one component of the Universal Traffic Management Systems (UTMS) and assists emergency vehicles to reach the scene as quickly as possible by controlling traffic signals (http://www.utms.or.jp/english/system/fast.html). Reducing ambulance response times improves the outcomes of OHCA (BMJ 2001;322:1385–1388).
Hypothesis: The implementation of FAST may improve the time factors and outcomes of OHCAs.
Methods: The infrared beacons recognizing the emergency vehicle were installed on the trunk roads in the central area of Kanazawa city at the beginning of 2003. Thereafter, the fire department increased the number of ambulances loaded with FAST equipment by exchanging old ambulances without the equipment. Most of major emergency hospitals were located in the central area. Four out of 8 ambulances were stationed in the central and frequently passed the signals controlled by the FAST when dispatched. All 8 ambulances frequently passed the FAST-controlled signals during transportation of victims to major emergency hospitals. We analyzed the OHCA data which were prospectively collected from April 1, 2003 to March 31, 2009 to elucidate the effects of FAST implementaion on the time factors and outcomes of OHCAs in the two areas with and without FAST-controlled signals.
Results: As shown in Table, the implementation of FAST-loaded ambulances significantly decreased the interval of call to arrival only in the central area and the transportation time in both areas. It significantly augmented the incidence of ROSC only in the central area. Logistic regression analysis confirmed that FAST implementation is one of independent factors associated with ROSC (adjusted odds ratio =1.1087–1.4717).
Conclusions: This observational study in one city suggests that implementation of FAST may improve the outcomes of OHCAs by reducing the interval of call to arrival. Large multi-region study is necessary to confirm the cost-benefit of FAST implementation.
- © 2010 by American Heart Association, Inc.