Researchers suggest that deploying drones equipped with defibrillators could significantly reduce response times for out-of-hospital cardiac arrests, potentially improving survival rates. In the United Kingdom alone, emergency services respond to over 30,000 such incidents each year, but fewer than 10% of patients survive, and many survivors suffer lasting neurological damage. Prompt CPR and defibrillation are critical, with survival chances decreasing by approximately 10% for each minute without treatment.

A team led by Dr. Hillary Minka, an emergency physician at Lariboisiere Hospital in Paris, conducted an analysis of 28,349 out-of-hospital cardiac arrests recorded from 2011 to 2024 in administrative districts surrounding Paris, excluding the city center. The study examined the spatial relationship between cardiac arrest locations and existing fixed automated external defibrillators (AEDs).

The findings revealed that only 30% of cardiac arrest cases occurred within 500 meters of a fixed AED, suggesting significant gaps in access to these life-saving devices. To address this, the researchers evaluated how the introduction of drones, capable of carrying defibrillators over a 2.4-mile range, could enhance coverage.

According to the study, establishing 100 drone bases alongside 26 additional fixed AEDs would provide access to defibrillation within 500 meters or a 2.5-mile drone delivery radius for over 97% of cardiac arrests analyzed. Further expanding the drone network to 200 bases and adding only four extra AEDs would increase coverage to 99% of cases.

The approach could reduce the number of fixed AEDs needed while extending the practical reach of defibrillator deployment, potentially speeding up emergency care in areas where AEDs are currently scarce or inaccessible. The study’s authors emphasize the time-critical nature of early defibrillation in improving cardiac arrest outcomes.

This research has not yet undergone peer review and is scheduled to be presented at the European Emergency Medicine Congress in Paris. It represents a growing interest in using drone technology to augment emergency medical response systems and enhance survival chances for individuals suffering cardiac arrests outside hospital settings.