ArticleScandinavian journal of trauma, resuscitation and emergency medicine2023
Automated and app-based activation of first responders for prehospital cardiac arrest: an analysis of 16.500 activations of the KATRETTER system in Berlin.
Article in Scandinavian journal of trauma, resuscitation and emergency medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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The trial behind it
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Who cites it
6 citing papers in PubMed, 12 citations in OpenAlex.
- Reasons why smartphone-alerted first responders abort missions: Findings from a sequential mixed-methods study.Resuscitation plus · 2026Article
- [Registration procedures in smartphone-based first responder alerting systems in Germany : A nationwide secondary data analysis with a local implementation example].Medizinische Klinik, Intensivmedizin und Notfallmedizin · 2026Article
- Impact of a 9-1-1-Integrated Mobile App on Bystander CPR: Implementation of PulsePoint in an Urban County.Journal of clinical medicine · 2025Article
- Innovative Training Strategies for Public Response to Out-of-Hospital Cardiac Arrest: A Scoping Review.Risk management and healthcare policy · 2025Review
- Facing the Obstacles of OHCA Response: Integrating First Responders With Drone Delivery for AED Deployment.JACC. Advances · 2024Article
- Access to automated external defibrillators and first responders: Associations with socioeconomic factors and income inequality at small spatial scales.Resuscitation plus · 2024Article
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundBystander CPR is one of the main independent factors contributing to better survival after out-of-hospital cardiac arrest. Simultaneously, the rate of bystander CPR in Germany is below the European average. First responder applications (apps) contribute to reducing the time period without CPR (no-flow time) until professional help can arrive on-scene.
methodsThe KATRETTER app was introduced in Berlin as one of the first apps in Europe which do not require any medical qualifications to register as a first responder. The activation of volunteer first responders for suspected cardiac arrest cases through the Berlin Emergency Medical Services integrated control center was evaluated based on data collected between 16 Oct 2020 and 16 Oct 2022. Our descriptive analysis includes the number of registered first responders, number of activations, the number and percentages of accepted activations, as well as all reports where first responders arrived at the scene.
resultsAs of 15 Oct 2022, a total of 10,102 first responders were registered in the state of Berlin. During this specified period, there were 16.505 activations of the system for suspected out-of-hospital cardiac arrest. In 38.4% of the accepted cases, first responders documented patient contact, and in 34.6% of cases with patient contact, CPR was performed. Only 2% of registered first responders did not have any medical qualifications.
conclusionsSmartphone-based first responder applications should not be understood as a means of alerting professional help, but rather like a digitally amplified "call for help" in the vicinity of an emergency location. A large number of first responders can be recruited within 24 months, without large-scale public relations work necessary. No qualifications were required to become a first responder, contributing to a low-threshold registration process with the effect of a more widespread distribution of the app and cost reduction during implementation.
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