Etude comparative complete originale (en anglais)

The Usability of Five Automated External Defibrillators by Minimally Trained BystandersAudrius Polikaitis, PhD, University of Illinois Medical Center, Chicago, IllinoisObjective - Public deployment of Automated External Defibrillators (AEDs) can potentially improve survival from Sudden Cardiac Arrest (SCA) by enabling more timely access to defibrillation. An AED should ideally be designed so that minimally trained bystanders can effectively and safely operate the device and deliver the necessary shock. This study evaluates the usability of five AEDs by bystanders with only a basic understanding of AED functionality and use.Methods - 125 subjects were recruited to participate as bystander rescuers. Each of the five AEDs was evaluated by a different set of 25 randomly assigned subjects. Subjects were first asked to review a brief memo that provided generic AED instructions. Subjects then deployed the assigned AED and delivered a shock to a simulated victim of cardiac arrest. The principle outcome was successful use of the AED, defined as safe and effective defibrillation shock delivery. The secondary outcome was time to shock, defined as the time from first contact with the AED to delivery of defibrillation shock. Subjects also completed a questionnaire to evaluate their experience using the AED.Results - The successful use rates for the Defibtech Lifeline (92%), Philips HeartStart OnSite (84%), Medtronic LifePak CRPlus (72%), and Zoll AED Plus (72%) ...