Ellinor Berglund1, Andreas Claesson1, Per Nordberg1, Therese Djärv1, Peter Lundgren2, Fredrik Folke3, Sune Forsberg4, Gabriel Riva1, Mattias Ringh5. 1. Center for Resuscitation Science, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden. 2. Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Sweden; Department of Cardiology, Sahlgrenska University Hospital, Gothenburg, Sweden. 3. Emergency Medical Services Copenhagen, Copenhagen University Hospital, Denmark. 4. Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden; Department of Anaesthesiology and Intensive Care, Norrtälje Hospital, Norrtälje, Sweden. 5. Center for Resuscitation Science, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden. Electronic address: Mattias.ringh@ki.se.
Abstract
BACKGROUND: Dispatch of lay volunteers trained in cardiopulmonary resuscitation (CPR) and equipped with automated external defibrillators (AEDs) may improve survival in cases of out-of-hospital cardiac arrest (OHCA). The aim of this study was to investigate the functionality and performance of a smartphone application for locating and alerting nearby trained laymen/women in cases of OHCA. METHODS: A system using a smartphone application activated by Emergency Dispatch Centres was used to locate and alert laymen/women to nearby suspected OHCAs. Lay responders were instructed either to perform CPR or collect a nearby AED. An online survey was carried out among the responders. RESULTS: From February to August 2016, the system was activated in 685 cases of suspected OHCA. Among these, 224 cases were Emergency Medical Services (EMSs)-treated OHCAs (33%). EMS-witnessed cases (n = 11) and cases with missing survey data (n = 15) were excluded. In the remaining 198 OHCAs, lay responders arrived at the scene in 116 cases (58%), and prior to EMSs in 51 cases (26%). An AED was attached in 17 cases (9%) and 4 (2%) were defibrillated. Lay responders performed CPR in 54 cases (27%). Median distance to the OHCA was 560 m (IQR 332-860 m), and 1280 m (IQR 748-1776 m) via AED pick-up. The survey-answering rate was 82%. CONCLUSION: A smartphone application can be used to alert CPR-trained lay volunteers to OHCAs for CPR. Further improvements are needed to shorten the time to defibrillation before EMS arrival.
BACKGROUND: Dispatch of lay volunteers trained in cardiopulmonary resuscitation (CPR) and equipped with automated external defibrillators (AEDs) may improve survival in cases of out-of-hospital cardiac arrest (OHCA). The aim of this study was to investigate the functionality and performance of a smartphone application for locating and alerting nearby trained laymen/women in cases of OHCA. METHODS: A system using a smartphone application activated by Emergency Dispatch Centres was used to locate and alert laymen/women to nearby suspected OHCAs. Lay responders were instructed either to perform CPR or collect a nearby AED. An online survey was carried out among the responders. RESULTS: From February to August 2016, the system was activated in 685 cases of suspected OHCA. Among these, 224 cases were Emergency Medical Services (EMSs)-treated OHCAs (33%). EMS-witnessed cases (n = 11) and cases with missing survey data (n = 15) were excluded. In the remaining 198 OHCAs, lay responders arrived at the scene in 116 cases (58%), and prior to EMSs in 51 cases (26%). An AED was attached in 17 cases (9%) and 4 (2%) were defibrillated. Lay responders performed CPR in 54 cases (27%). Median distance to the OHCA was 560 m (IQR 332-860 m), and 1280 m (IQR 748-1776 m) via AED pick-up. The survey-answering rate was 82%. CONCLUSION: A smartphone application can be used to alert CPR-trained lay volunteers to OHCAs for CPR. Further improvements are needed to shorten the time to defibrillation before EMS arrival.
Authors: Alexander E White; Andrew Fw Ho; Nur Shahidah; Nurul Asyikin; Le Xuan Liew; Pin Pin Pek; Jade Ph Kua; Michael Yc Chia; Yih Yng Ng; Shalini Arulanandam; Sieu-Hon Benjamin Leong; Marcus Eh Ong Journal: Singapore Med J Date: 2021-08 Impact factor: 1.858
Authors: Spyros D Mentzelopoulos; Keith Couper; Patrick Van de Voorde; Patrick Druwé; Marieke Blom; Gavin D Perkins; Ileana Lulic; Jana Djakow; Violetta Raffay; Gisela Lilja; Leo Bossaert Journal: Notf Rett Med Date: 2021-06-02 Impact factor: 0.826
Authors: Julian Ganter; Domagoj Damjanovic; Georg Trummer; Hans-Jörg Busch; Klemens Baldas; Mike Hänsel; Michael Patrick Müller Journal: Medicine (Baltimore) Date: 2021-07-09 Impact factor: 1.817
Authors: Katarina Høgh Mottlau; Linn Charlotte Andelius; Rasmus Gregersen; Carolina Malta Hansen; Fredrik Folke Journal: J Am Heart Assoc Date: 2022-01-21 Impact factor: 6.106
Authors: David G Schwartz; Janna Ataiants; Alexis Roth; Gabriela Marcu; Inbal Yahav; Benjamin Cocchiaro; Michael Khalemsky; Stephen Lankenau Journal: EClinicalMedicine Date: 2020-08-03