Article Text

Evaluation of a new semiautomated external defibrillator technology: a live cases video recording study
  1. Frédéric Maes,
  2. Sébastien Marchandise,
  3. Laurianne Boileau,
  4. Jean-Benoît Le Polain de Waroux,
  5. Christophe Scavée
  1. Department of Cardiology, Cliniques Universitaires Saint-Luc, Bruxelles, Belgium
  1. Correspondence to Dr Frédéric Maes, Department of Cardiology, Cliniques Universitaires Saint-Luc, Avenue Hippocrate, 10, Woluwe Saint Lambert, Bruxelles 1200, Belgium; fredericmaes{at}


Aim To determine the effect of a new automated external defibrillator (AED) system connected by General Packet Radio Service (GPRS) to an external call centre in assisting novices in a sudden cardiac arrest situation.

Method Prospective, interventional study. Layperson volunteers were first asked to complete a survey about their knowledge and ability to give cardiopulmonary resuscitation (CPR) and use an AED. A simulated cardiac arrest scenario using a CPR manikin was then presented to volunteers. A telephone and semi-AED were available in the same room. The AED was linked to a call centre, which provided real-time information to ‘bystanders’ and emergency services via GPRS/GPS technology. The scene was videotaped to avoid any interaction with examiners. A standardised check list was used to record correct actions.

Results 85 volunteers completed questionnaires and were recorded. Mean age was 44±16, and 49% were male; 38 (45%) had prior CPR training or felt comfortable intervening in a sudden cardiac arrest victim; 40% felt they could deliver a shock using an AED. During the scenarios, 56 (66%) of the participants used the AED and 53 (62%) successfully delivered an electrical shock. Mean time to defibrillation was 2 min 29 s. Only 24 (28%) participants dialled the correct emergency response number (112); the live-assisted GPRS AED allowed alerted emergency services in 38 other cases. CPR was initiated in 63 (74%) cases, 26 (31%) times without prompting and 37 (44%) times after prompting by the AED.

Conclusions Although knowledge of the general population appears to be inadequate with regard to AED locations and recognition, live-assisted devices with GPS-location may improve emergency care.

  • Cardiac arrest
  • Emergency Care Systems, Efficiency
  • Prehospital Care, First Responders
  • Resuscitation, Effectiveness

Statistics from

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.

Linked Articles

  • Primary survey
    Ellen J Weber