Association Between Number of Volunteer Responders and Interventions Before Ambulance Arrival for Cardiac Arrest
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Association Between Number of Volunteer Responders and Interventions Before Ambulance Arrival for Cardiac Arrest. / Gregers, Mads Christian Tofte; Andelius, Linn; Kjoelbye, Julie Samsoee; Grabmayr, Anne Juul; Jakobsen, Louise Kollander; Christensen, Nanna Bo; Kragh, Astrid Rolin; Hansen, Carolina Malta; Lyngby, Rasmus Meyer; Vaeggemose, Ulla; Torp-Pedersen, Christian; Ersbøll, Annette Kjær; Folke, Fredrik.
In: Journal of the American College of Cardiology, Vol. 81, No. 7, 2023, p. 668-680.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Association Between Number of Volunteer Responders and Interventions Before Ambulance Arrival for Cardiac Arrest
AU - Gregers, Mads Christian Tofte
AU - Andelius, Linn
AU - Kjoelbye, Julie Samsoee
AU - Grabmayr, Anne Juul
AU - Jakobsen, Louise Kollander
AU - Christensen, Nanna Bo
AU - Kragh, Astrid Rolin
AU - Hansen, Carolina Malta
AU - Lyngby, Rasmus Meyer
AU - Vaeggemose, Ulla
AU - Torp-Pedersen, Christian
AU - Ersbøll, Annette Kjær
AU - Folke, Fredrik
PY - 2023
Y1 - 2023
N2 - BACKGROUND Volunteer responder (VR) programs for activation of laypersons in out-of-hospital cardiac arrest (OHCA) have been deployed worldwide, but the optimal number of VRs to dispatch is unknown.OBJECTIVES The purpose of this study was to investigate the association between the number of VRs arriving before Emergency Medical Services (EMS) and the proportion of bystander cardiopulmonary resuscitation (CPR) and defibrillation.METHODS We included OHCAs not witnessed by EMS with VR activation from the Capital Region (September 2, 2017, to May 14, 2019) and the Central Region of Denmark (November 5, 2018, to December 31, 2019). We created 4 groups according to the number of VRs arriving before EMS: 0,1, 2, and 3 or more. Using a logistic regression model adjusted for EMS response time, we examined associations between the number of VRs arriving before EMS and bystander CPR and defibrillation.RESULTS We included 906 OHCAs. The adjusted ORs for bystander CPR were 2.40 (95% CI: 1.42-4.05), 3.18 (95% CI: 1.39-7.26), and 2.70 (95% CI: 1.32-5.52) when 1, 2, or 3 or more VRs arrived before EMS (reference), respectively. The adjusted OR for bystander defibrillation increased when 1 (1.97 [95% CI: 1.12-3.52]), 2 (2.88 [95% CI: 1.48-5.58]), or 3 or more (3.85 [95% CI: 2.11-7.01]) VRs arrived before EMS (reference). The adjusted OR of bystander defibrillation increased to 1.95 (95% CI: 1.18-3.22) when $3 VRs arrived first compared with 1 VR arriving first (reference).CONCLUSIONS We found an association of increased bystander CPR and defibrillation when 1 or more VRs arrived before the EMS with a trend toward increased bystander defibrillation with increasing number of VRs arriving first. (J Am Coll Cardiol 2023;81:668-680)(c) 2023 The Authors. Published by Elsevier on behalf of the American College of Cardiology Foundation. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/
AB - BACKGROUND Volunteer responder (VR) programs for activation of laypersons in out-of-hospital cardiac arrest (OHCA) have been deployed worldwide, but the optimal number of VRs to dispatch is unknown.OBJECTIVES The purpose of this study was to investigate the association between the number of VRs arriving before Emergency Medical Services (EMS) and the proportion of bystander cardiopulmonary resuscitation (CPR) and defibrillation.METHODS We included OHCAs not witnessed by EMS with VR activation from the Capital Region (September 2, 2017, to May 14, 2019) and the Central Region of Denmark (November 5, 2018, to December 31, 2019). We created 4 groups according to the number of VRs arriving before EMS: 0,1, 2, and 3 or more. Using a logistic regression model adjusted for EMS response time, we examined associations between the number of VRs arriving before EMS and bystander CPR and defibrillation.RESULTS We included 906 OHCAs. The adjusted ORs for bystander CPR were 2.40 (95% CI: 1.42-4.05), 3.18 (95% CI: 1.39-7.26), and 2.70 (95% CI: 1.32-5.52) when 1, 2, or 3 or more VRs arrived before EMS (reference), respectively. The adjusted OR for bystander defibrillation increased when 1 (1.97 [95% CI: 1.12-3.52]), 2 (2.88 [95% CI: 1.48-5.58]), or 3 or more (3.85 [95% CI: 2.11-7.01]) VRs arrived before EMS (reference). The adjusted OR of bystander defibrillation increased to 1.95 (95% CI: 1.18-3.22) when $3 VRs arrived first compared with 1 VR arriving first (reference).CONCLUSIONS We found an association of increased bystander CPR and defibrillation when 1 or more VRs arrived before the EMS with a trend toward increased bystander defibrillation with increasing number of VRs arriving first. (J Am Coll Cardiol 2023;81:668-680)(c) 2023 The Authors. Published by Elsevier on behalf of the American College of Cardiology Foundation. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/
KW - KEY WORDS AED
KW - bystander
KW - cardiopulmonary resuscitation
KW - defibrillation
KW - OHCA
KW - out-of-hospital cardiac arrest
KW - smartphone app
KW - volunteer responders
KW - CITIZEN RESPONDERS
KW - SURVIVAL
KW - DEFIBRILLATION
KW - CHALLENGES
KW - ACTIVATION
KW - DISPATCH
U2 - 10.1016/j.jacc.2022.11.047
DO - 10.1016/j.jacc.2022.11.047
M3 - Journal article
C2 - 36792282
VL - 81
SP - 668
EP - 680
JO - Journal of the American College of Cardiology
JF - Journal of the American College of Cardiology
SN - 0735-1097
IS - 7
ER -
ID: 340322984