Abstract P167: Effectiveness of an “AED Map on a Mobile Web” System: A Randomized Controlled Trial
Backgrounds: Although early defibrillation by the public access defibrillation is the key strategy to save out-of-hospital cardiac arrest victims, it is difficult to immediately find out an AED in an emergency setting. We developed a mobile phone web system to help lay rescuers find the nearest AED designated as “AED Map.”
Objectives: To compare the time needed to find out an AED and return between with and without an AED Map.
Methods: Design: randomized controlled trial. Setting: two start points where it was estimated to take 2 minutes to access the nearest AED were selected. Participants were randomly assigned to either an AED Map group or a control group. In a simulation test, they were asked to find out an AED and bring it back to the start point. The time and moving distance from start to AED access and AED access to goal were measured.
Results: 43 general citizens were enrolled and completed the protocol. It took about 400 seconds to bring an AED back in both groups. The time to access an AED and return tended to be shorter in the AED map group in one area (AED map group, 288.2s; control group, 392.9s; P=0.163) while not in the other (AED map group, 510.9s; control group, 422.4s; P=0.499). The moving distance was, however, significantly shorter in the AED Map group (606m vs 891m, P=0.019). (Table⇓)
Conclusions: A mobile web system to support rescuers finding an AED could shorten the moving distance to access an AED, but the time required was dependent on the location and could not be shorten by this system. Further development of the device and its use would be warranted to improve quick AED access.