[Optimizing prehospital intervention times for extrahospital emergencies : experience of a Belgian air emergency service].

Background: the efficacy of helicopter medical transport in terms of prehospital time savings, compared to ground transport, remains a topic of debate in the management of extrahospital emergencies. This study aims to assess the temporal impact of using the air emergency service in Belgian rural context.
Methods: We retrospectively analyzed the interventions of the Bra-sur-Lienne emergency medical helicopter service from 2015 to 2023. The study included five target conditions: acute myocardial infarction, traumatic brain injury, coma, cardiopulmonary arrest, and severe polytrauma. Prehospital intervention times, actual for helicopter and simulated for ground transport, were compared using the Wilcoxon rank-sum test.
Results: The study encompassed 255 myocardial infarction cases, 404 traumatic brain injuries, 129 comas, 297 cardiopulmonary arrests, and 680 severe polytraumas. The results demonstrate a significant prehospital time saving with helicopter transport (p < 0.0001), highlighting its effectiveness in reducing intervention delay.
Conclusion: Helicopter transport emerges as a preferred option to optimize prehospital intervention times in Belgian rural areas, particularly for critical pathologies over long distances. Its deployment should be considered an essential link in the chain of survival in extrahospital emergencies.