• Resuscitation · Dec 2022

    Pediatric and Adult Out-of-Hospital Cardiac Arrest Incidence Within and Near Public Schools in British Columbia: Missed Opportunities for Systematic AED Deployment Strategies.

    • LiangLi DannyLDDepartment of Emergency Medicine, University of Calgary, Calgary, Canada., K H Benjamin Leung, ChanTimothy C YTCYDepartment of Mechanical and Industrial Engineering University of Toronto, Canada., Jonathan Deakin, Matthieu Heidet, Garth Meckler, Frank Scheuermeyer, Shubhayan Sanatani, Jim Christenson, and Brian Grunau.
    • Department of Emergency Medicine, University of Calgary, Calgary, Canada.
    • Resuscitation. 2022 Dec 1; 181: 202520-25.

    BackgroundSystematic automated external defibrillator(AED) placement in schools may improve pediatric out-of-hospital cardiac arrest(OHCA) survival. To estimate their utility, we identified school-located pediatric and adult OHCAs to estimate the potential utilization of school-located AEDs. Further, we identified all OHCAs within an AED-retrievable distance of the school by walking, biking, and driving.MethodsWe used prospectively collected data from the British Columbia(BC) Cardiac Arrest Registry(2013-2020), and geo-plotted all OHCAs and schools(n = 824) in BC. We identified adult and pediatric(age < 18 years) OHCAs occurring in schools, as well as nearby OHCAs for which a school-based externally-placed AED could be retrieved by a bystander prior to emergency medical system(EMS) arrival.ResultsOf 16,409 OHCAs overall in the study period, 28.6 % occurred during school hours. There were 301 pediatric OHCAs. 5(1.7 %) occurred in schools, of whom 2(40 %) survived to hospital discharge. Among both children and adults, 28(0.17 %) occurred in schools(0.0042/school/year), of whom 21(75 %) received bystander resuscitation, 4(14 %) had a bystander AED applied, and 14(50 %) survived to hospital discharge. For each AED, an average of 0.29 OHCAs/year(95 % CI 0.21-0.37), 0.93 OHCAs/year(95 % CI 0.69-1.56) and 1.69 OHCAs/year(95 % CI 1.21-2.89) would be within the potential retrieval distance of a school-located AED by pedestrian, cyclist and automobile retrieval, respectively, using the median EMS response times.ConclusionWhile school-located OHCAs were uncommon, outcomes were favourable. 11.1% to 60.9% of all OHCAs occur within an AED-retrievable distance to a school, depending on retrieval method. Accessible external school-located AEDs may improve OHCA outcomes of school children and in the surrounding community.Copyright © 2022 Elsevier B.V. All rights reserved.

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