ArticleResuscitation plus2026
Reasons why smartphone-alerted first responders abort missions: Findings from a sequential mixed-methods study.
Article in Resuscitation plus, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Smartphone-based first responder systems are implemented in 209 regions across Germany to reduce time to treatment in out-of-hospital cardiac arrests (OHCA). However, more than 20% of alerted responders abort a mission after accepting the alert. Understanding the underlying reasons is important for improving the prehospital chain of survival. Methods: We conducted a mixed-methods study comprising of (1) semi-structured interviews with smartphone-alerted first responders in Munich to identify and categorise reasons why missions are aborted, and (2) a subsequent quantitative online survey sent to all registered users of the Results: Four semi-structured telephone interviews identified six categories with two to three subcodes through qualitative content analysis, which informed questionnaire development. Based on this questionnaire, 334 responder feedbacks were analysed. Among responders, 130 (38.9%) reported aborting a mission after acceptance; 204 had never discontinued a mission. Lack of time advantage over dispatched emergency medical services was the most frequently reported reason for aborting missions ( Conclusion: Smartphone-alerted first responders were more likely to abort missions due to structural and informational factors rather than safety concerns. Optimising dispatch information, tracking and alert processes, improving emergency site localisation, and refining spatial alerting criteria may reduce discontinued missions and strengthen system effectiveness in urban areas.
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