The potential for bystander automated external defibrillator deployment in London, UK

      Purpose: Bystander Automated External Defibrillator (AED) use is associated with increased survival from out-of-hospital cardiac arrest (OHCA) [
      • Holmberg M.J.
      • et al.
      Bystander automated external defibrillator use and clinical outcomes after out-of-hospital cardiac arrest: A systematic review and meta-analysis.
      ]. However, it is only used in a minority of cases, limiting its effectiveness at population level [
      • Smith C.M.
      • et al.
      Barriers and facilitators to public access defibrillation in out-of-hospital cardiac arrest: a systematic review.
      ]. The effective coverage area of an AED is a subject for debate, but a range of 100 m to 500 m is often quoted in the literature [
      • Smith C.M.
      • et al.
      Barriers and facilitators to public access defibrillation in out-of-hospital cardiac arrest: a systematic review.
      ]. The aim of this study was to determine the proximity of OHCA to AEDs in London, to assess the current potential for bystander AED use.
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      References

        • Holmberg M.J.
        • et al.
        Bystander automated external defibrillator use and clinical outcomes after out-of-hospital cardiac arrest: A systematic review and meta-analysis.
        Resuscitation. 2017; 120: 77-87
        • Smith C.M.
        • et al.
        Barriers and facilitators to public access defibrillation in out-of-hospital cardiac arrest: a systematic review.
        Eur Heart J Qual Care Clin Outcomes. 2017; 3: 264-273