New research suggests that drones can be used to quickly deliver automated external defibrillators in sudden cardiac arrest emergencies. Drones can respond faster than ambulances in emergencies, bypassing traffic and distance barriers.
Reference
Boutilier JJ, Brooks SC, Janmohamed A, et al. Optimizing a drone network to deliver automated external defibrillators [published online March 2, 2017]. Circulation. doi: 10.1161/CIRCULATIONAHA.116.026318