Research
Print page Print page
Switch language
The Capital Region of Denmark - a part of Copenhagen University Hospital
Published

Smartphone Activation of Citizen Responders to Facilitate Defibrillation in Out-of-Hospital Cardiac Arrest

Research output: Contribution to journalJournal articleResearchpeer-review

  1. Obesity as a Causal Risk Factor for Aortic Valve Stenosis

    Research output: Contribution to journalJournal articleResearchpeer-review

  2. Coronary CT Angiography in Patients With Non-ST-Segment Elevation Acute Coronary Syndrome

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Natural History of Subclinical Atrial Fibrillation Detected by Implanted Loop Recorders

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. Effects of Interatrial Shunt on Pulmonary Vascular Function in Heart Failure With Preserved Ejection Fraction

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. Reply: Enterococcus faecalis Infective Endocarditis

    Research output: Contribution to journalComment/debateResearchpeer-review

  1. Add-on therapy in metformin-treated patients with type 2 diabetes at moderate cardiovascular risk: a nationwide study

    Research output: Contribution to journalJournal articleResearchpeer-review

  2. Age-specific trends in incidence and survival of out-of-hospital cardiac arrest from presumed cardiac cause in Denmark 2002-2014

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Early and late risk of ischemic stroke after TAVR as compared to a nationwide background population

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. Valve regurgitation in patients surviving endocarditis and the subsequent risk of heart failure

    Research output: Contribution to journalJournal articleResearchpeer-review

View graph of relations

BACKGROUND: Dispatching citizen responders through a smartphone application (app) holds the potential to increase bystander cardiopulmonary resuscitation (CPR) and defibrillation in out-of-hospital cardiac arrest (OHCA).

OBJECTIVES: This study investigated arrival at the OHCA location of app-dispatched citizen responders before the Emergency Medical Services (EMS) and the association with bystander CPR and bystander defibrillation.

METHODS: Suspected OHCAs with alerted citizen responders from September 1, 2017, to August 31, 2018, were included. Citizen responders located 1.8 km (1.1 miles) from the OHCA were dispatched to start CPR or retrieve an automated external defibrillator. OHCAs where at least 1 citizen responder arrived before EMS were compared with OHCAs where EMS arrived first. In both groups, random bystanders could be present before the arrival of citizen responders and the EMS. Primary outcomes were bystander CPR and bystander defibrillation, which included CPR and defibrillation by citizen responders and random bystanders.

RESULTS: Citizen responders were alerted in 819 suspected OHCAs, of which 438 (53.5%) were confirmed cardiac arrests eligible for inclusion. At least 1 citizen responder arrived before EMS in 42.0% (n = 184) of all included OHCAs. When citizen responders arrived before EMS, the odds for bystander CPR increased (odds ratio: 1.76; 95% confidence interval: 1.07 to 2.91; p = 0.027) and the odds for bystander defibrillation more than tripled (odds ratio: 3.73; 95% confidence interval: 2.04 to 6.84; p < 0.001) compared with OHCAs in which citizen responders arrived after EMS.

CONCLUSIONS: Arrival of app-dispatched citizen responders before EMS was associated with increased odds for bystander CPR and a more than 3-fold increase in odds for bystander defibrillation. (The HeartRunner Trial; NCT03835403).

Original languageEnglish
JournalJournal of the American College of Cardiology
Volume76
Issue number1
Pages (from-to)43-53
Number of pages11
ISSN0735-1097
DOIs
Publication statusPublished - 7 Jul 2020

ID: 60284274