Abstract 17778: Quantifying the Value of Drone-Delivered Automated External Defibrillators in Cardiac Arrest Response
Background: Public access defibrillation programs can improve survival after OHCA, but AEDs are rarely available for bystander use at the scene. Drones are an emerging technology that can deliver an AED to the scene of an OHCA for bystander use while 911 responders are en route.
Objective: To quantify the reduction in time to AED arrival by using drones to deliver AEDs for bystander use in OHCA.
Methods: We developed a mathematical approach that determines, for any geographical area, the number and location of drone bases, along with the number of the drones required at each base, to meet any AED delivery goal. We applied our model to 56,066 OHCAs within the eight regions of Toronto Regional RescuNET between Jan. 2006-Dec. 2014. Our primary analysis quantified the size of the drone network required to deliver an AED ahead of median 911 response times by one, two, or three minutes in each of the eight regions independently. A secondary analysis quantified the added value of treating all of RescuNET as one large coordinated region when determining the required drone network.
Results: The region-specific drone networks required 81 bases and 100 drones total to ensure delivery of an AED ahead of median 911 response times by three minutes. In the most urban region the 90th percentile of time to AED arrival, based on historical 911 response time, was reduced to 3 minutes and 56 seconds (a reduction of 6 minutes and 43 seconds). In the most rural region, the 90th percentile was reduced to 9 minutes and 1 second (a reduction of 10 minutes and 34 seconds). Compared to the region-specific networks, a single coordinated drone network across all regions required 39.5% fewer bases and 30.0% fewer drones to achieve the same AED delivery times.
Conclusions: We developed a novel method to design drone networks for emergency response to OHCA. Our results suggest that drones can substantially reduce the AED delivery time for bystander use while 911 responders are en route, and potentially increase survival from OHCA.
- Cardiac arrest
- Automated external defibrillator (AED)
- Emergency medical services (EMS)
- Health policy
Author Disclosures: J.J. Boutilier: None. S.C. Brooks: None. A. Janmohamed: None. A. Byers: None. C. Zhan: None. J.E. Buick: None. A.P. Schoellig: None. L.J. Morrison: None. S. Cheskes: None. T.C. Chan: None.
- © 2016 by American Heart Association, Inc.