Association between hourly call volume in the emergency medical dispatch center and dispatcher-assisted cardiopulmonary resuscitation instruction time in out-of-hospital cardiac arrest

Resuscitation ◽  
2020 ◽  
Vol 153 ◽  
pp. 136-142 ◽  
Author(s):  
Tae Han Kim ◽  
Youdong Sohn ◽  
Wonpyo Hong ◽  
Kyoung Jun Song ◽  
Sang Do Shin
Keyword(s):  
Cardiac Arrest ◽  
Cardiopulmonary Resuscitation ◽  
Emergency Medical Dispatch ◽  
Instruction Time ◽  
Emergency Medical ◽  
Hospital Cardiac Arrest ◽  
Call Volume

Abstract 01: Dispatching Lay Rescuers Through a Smartphone Application is Associated With Increased Bystander Defibrillation in Out-of-Hospital Cardiac Arrest

Circulation ◽  
2018 ◽  
Vol 138 (Suppl_2) ◽  
Author(s):  
Linn Andelius ◽  
Carolina Malta Hansen ◽  
Freddy Lippert ◽  
Lena Karlsson ◽  
Christian Torp-Pedersen ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Smartphone Application ◽  
Automated External Defibrillator ◽  
Early Defibrillation ◽  
Emergency Medical Dispatch ◽  
Capital Region ◽  
Electronic Survey ◽  
Emergency Medical ◽  
Hospital Cardiac Arrest ◽  
External Defibrillator

Introduction: Survival after out-of-hospital cardiac arrest (OHCA) is dependent on early defibrillation. To increase bystander defibrillation in OHCAs, a first-responder program dispatching lay rescuers (Heart Runners) through a smartphone application (Heart Runner-app) was implemented in the Capital Region of Denmark. We investigated the proportion of Heart Runners arriving prior to the Emergency Medical Services (EMS) and rates of bystander defibrillation. Methods: The Capital Region of Denmark comprises 1.8 mil. inhabitants and 19,048 Heart Runners were registered. In cases of suspected OHCA, the Heart Runner-app was activated by the Emergency Medical Dispatch Center. Up to 20 Heart Runners < 1.8 km from the OHCA were dispatched to either start cardiopulmonary resuscitation (CPR) or to retrieve and use a publicly accessible automated external defibrillator (AED). Through an electronic survey, Heart Runners reported if they arrived before EMS and if they applied an AED. OHCAs where at least one Heart Runner arrived before EMS were compared with OHCAs where EMS arrived first. All OHCAs from September 2017 to May 2018, where Heart Runners had been dispatched, were included. Results: Of 399 EMS treated OHCAs, 78% (n=313/399) had a matching survey. A Heart Runner arrived before EMS in 47% (n=147/313) of the cases, and applied an AED in 41% (n=61/147) of these cases. Rate of bystander defibrillation was 2.5-fold higher compared to cases where the EMS arrived first (Table 1). Conclusions: By activation of the Heart Runner-app, Heart Runners arrived prior to EMS in nearly half of all the OHCA cases. Bystander defibrillation rate was significantly higher when Heart Runners arrived prior to EMS.

scholarly journals Bystander Cardiopulmonary Resuscitation Quality: Potential for Improvements in Cardiac Arrest Resuscitation

2021 ◽  
Author(s):  
Richard Chocron ◽  
Julia Jobe ◽  
Sally Guan ◽  
Madeleine Kim ◽  
Mia Shigemura ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Cardiopulmonary Resuscitation ◽  
Performance Metrics ◽  
Medical System ◽  
Emergency Medical System ◽  
Compression Rate ◽  
Emergency Medical ◽  
Bystander Cardiopulmonary Resuscitation ◽  
Bystander Cpr ◽  
Hospital Cardiac Arrest

Background Bystander cardiopulmonary resuscitation (CPR) is a critical intervention to improve survival following out‐of‐hospital cardiac arrest. We evaluated the quality of bystander CPR and whether performance varied according to the number of bystanders or provision of telecommunicator CPR (TCPR). Methods and Results We investigated non‐traumatic out‐of‐hospital cardiac arrest occurring in a large metropolitan emergency medical system during a 6‐month period. Information about bystander care was ascertained through review of the 9‐1‐1 recordings in addition to emergency medical system and hospital records to determine bystander CPR status (none versus TCPR versus unassisted), the number of bystanders on‐scene, and CPR performance metrics of compression fraction and compression rate. Of the 428 eligible out‐of‐hospital cardiac arrest, 76.4% received bystander CPR including 43.7% unassisted CPR and 56.3% TCPR; 35.2% had one bystander, 33.3% had 2 bystanders, and 31.5% had ≥3 bystanders. Overall compression fraction was 59% with a compression rate of 88 per minute. CPR differed according to TCPR status (fraction=52%, rate=87 per minute for TCPR versus fraction=69%, rate=102 for unassisted CPR, P <0.05 for each comparison) and the number of bystanders (fraction=55%, rate=87 per minute for 1 bystander, fraction=59%, rate=89 for 2 bystanders, fraction=65%, rate=97 for ≥3 bystanders, test for trend P <0.05 for each metric). Additional bystander actions were uncommon to include rotation of compressors (3.1%) or application of an automated external defibrillator (8.0%). Conclusions Bystander CPR quality as gauged by compression fraction and rate approached guideline goals though performance depended upon the type of CPR and number of bystanders.

scholarly journals Diagnosis of Out-of-Hospital Cardiac Arrest by Emergency Medical Dispatch: A Diagnostic Systematic Review

Resuscitation ◽  
2020 ◽  
Author(s):  
Ian R. Drennan ◽  
Guillaume Geri ◽  
Steve Brooks ◽  
Keith Couper ◽  
Tetsuo Hatanaka ◽  
...  
Keyword(s):  
Systematic Review ◽  
Cardiac Arrest ◽  
Emergency Medical Dispatch ◽  
Emergency Medical ◽  
Hospital Cardiac Arrest

scholarly journals Management of EMS on-scene time during advanced life support in out-of-hospital cardiac arrest: a retrospective observational trial

2020 ◽  
Vol 9 (4_suppl) ◽  
pp. S82-S89
Author(s):  
Michael Poppe ◽  
Mario Krammel ◽  
Christian Clodi ◽  
Christoph Schriefl ◽  
Alexandra-Maria Warenits ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Cardiopulmonary Resuscitation ◽  
Emergency Medical Services ◽  
Life Support ◽  
Advanced Life Support ◽  
Spontaneous Circulation ◽  
Medical Services ◽  
Extracorporeal Cardiopulmonary Resuscitation ◽  
Emergency Medical ◽  
Hospital Cardiac Arrest

Objective Most western emergency medical services provide advanced life support in out-of-hospital cardiac arrest aiming for a return of spontaneous circulation at the scene. Little attention is given to prehospital time management in the case of out-of-hospital cardiac arrest with regard to early coronary angiography or to the start of extracorporeal cardiopulmonary resuscitation treatment within 60 minutes after out-of-hospital cardiac arrest onset. We investigated the emergency medical services on-scene time, defined as emergency medical services arrival at the scene until departure to the hospital, and its association with 30-day survival with favourable neurological outcome after out-of-hospital cardiac arrest. Methods All patients of over 18 years of age with non-traumatic, non-emergency medical services witnessed out-of-hospital cardiac arrest between July 2013 and August 2015 from the Vienna Cardiac Arrest Registry were included in this retrospective observational study. Results Out of 2149 out-of-hospital cardiac arrest patients, a total of 1687 (79%) patients were eligible for analyses. These patients were stratified into groups according to the on-scene time (<35 minutes, 35–45 minutes, 45–60 minutes, >60 minutes). Within short on-scene time groups, out-of-hospital cardiac arrest occurred more often in public and bystander cardiopulmonary resuscitation was more common (both P<0.001). Patients who did not achieve return of spontaneous circulation at the scene showed higher rates of 30-day survival with favourable neurological outcome with an on-scene time of less than 35 minutes (adjusted odds ratio 5.00, 95% confidence interval 1.39–17.96). Conclusion An emergency medical services on-scene time of less than 35 minutes was associated with higher rates of survival and favourable outcomes. It seems to be reasonable to develop time optimised advance life support protocols to minimise the on-scene time in view of further treatments such as early coronary angiography as part of post-resuscitation care or extracorporeal cardiopulmonary resuscitation in refractory out-of-hospital cardiac arrest.

scholarly journals Emergency Medical Service Dispatch Cardiopulmonary Resuscitation Prearrival Instructions to Improve Survival From Out-of-Hospital Cardiac Arrest

Circulation ◽  
2012 ◽  
Vol 125 (4) ◽  
pp. 648-655 ◽  
Author(s):  
E. Brooke Lerner ◽  
Thomas D. Rea ◽  
Bentley J. Bobrow ◽  
Joe E. Acker ◽  
Robert A. Berg ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Cardiopulmonary Resuscitation ◽  
Emergency Medical Service ◽  
Medical Service ◽  
Emergency Medical ◽  
Hospital Cardiac Arrest

scholarly journals Incidence and Outcomes of Out‐of‐Hospital Cardiac Arrest in Singapore and Victoria: A Collaborative Study

2020 ◽  
Vol 9 (21) ◽  
Author(s):  
Shir Lynn Lim ◽  
Karen Smith ◽  
Kylie Dyson ◽  
Siew Pang Chan ◽  
Arul Earnest ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Cardiopulmonary Resuscitation ◽  
Emergency Medical Services ◽  
Prehospital Care ◽  
Survival Rates ◽  
World Health ◽  
Medical Services ◽  
Emergency Medical ◽  
Bystander Cardiopulmonary Resuscitation ◽  
Hospital Cardiac Arrest

Background Incidence and outcomes of out‐of‐hospital cardiac arrest (OHCA) vary between communities. We aimed to examine differences in patient characteristics, prehospital care, and outcomes in Singapore and Victoria. Methods and Results Using the prospective Singapore Pan‐Asian Resuscitation Outcomes Study and Victorian Ambulance Cardiac Arrest Registry, we identified 11 061 and 32 003 emergency medical services‐attended adult OHCAs between 2011 and 2016 respectively. Incidence and survival rates were directly age adjusted using the World Health Organization population. Survival was analyzed with logistic regression, with model selection via backward elimination. Of the 11 061 and 14 834 emergency medical services‐treated OHCAs (overall mean age±SD 65.5±17.2; 67.4% males) in Singapore and Victoria respectively, 11 054 (99.9%) and 5595 (37.7%) were transported, and 440 (4.0%) and 2009 (13.6%) survived. Compared with Victoria, people with OHCA in Singapore were older (66.7±16.5 versus 64.6±17.7), had less shockable rhythms (17.7% versus 30.3%), and received less bystander cardiopulmonary resuscitation (45.7% versus 58.5%) and defibrillation (1.3% versus 2.5%) (all P <0.001). Age‐adjusted OHCA incidence and survival rates increased in Singapore between 2011 and 2016 ( P <0.01 for trend), but remained stable, though higher, in Victoria. Likelihood of survival increased significantly ( P <0.001) with arrest in public locations (adjusted odds ratio [aOR] 1.81), witnessed arrest (aOR 2.14), bystander cardiopulmonary resuscitation (aOR 1.72), initial shockable rhythm (aOR 9.82), and bystander defibrillation (aOR 2.04) but decreased with increasing age (aOR 0.98) and emergency medical services response time (aOR 0.91). Conclusions Singapore reported increasing OHCA incidence and survival rates between 2011 and 2016, compared with stable, albeit higher, rates in Victoria. Survival differences might be related to different emergency medical services practices including patient selection for resuscitation and transport.

P4170Survival after dispatcher assisted CPR in out of hospital cardiac arrest compared to CPR without dispatcher assistance and no CPR before emergency medical services arrival – a nationwide study

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
G Riva ◽  
M Jonsson ◽  
M Ringh ◽  
A Claesson ◽  
T Djarv ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Propensity Score ◽  
Cardiopulmonary Resuscitation ◽  
Emergency Medical Services ◽  
Time Delays ◽  
Medical Services ◽  
Absolute Difference ◽  
Nationwide Study ◽  
Emergency Medical ◽  
Hospital Cardiac Arrest

Abstract Background Cardiopulmonary resuscitation (CPR) before arrival of emergency medical services (EMS) is associated with survival in out-of hospital cardiac arrest. Dispatcher assisted CPR (DA-CPR) has been shown to increase CPR rates. However there are several challenges to successful DA-CPR, such as identification of cardiac arrest, time delays to CPR instructions, time delays to start of chest compression and quality of CPR. Purpose The aim of this study is to assess survival in out of hospital cardiac arrest after no CPR, DA-CPR and CPR without dispatcher assistance before EMS arrival in a nationwide cardiac arrest register. Methods A register based observational study. All consecutive Out of Hospital Cardiac Arrests reported to the Swedish Register for Cardiopulmonary Resuscitation in 2010–2017 were collected. Patients with cardiac arrest witnessed by EMS, who received CPR by off-duty medical professionals, missing data on CPR, DA-CPR or survival were excluded. Exposure was categorized as either; no CPR before EMS arrival (NO-CPR), dispatcher assisted CPR before EMS arrival (DA-CPR) and CPR before EMS arrival without dispatcher assistance, spontaneous CPR (S-CPR). Propensity score matched cohorts were used for comparison between groups. Primary endpoint was 30-day survival. Results Out of 36309, a total of 15471 patients were included, 41.6% received NO-CPR 31.0% received DA-CPR and 27.4% received S-CPR. In propensity score matched cohorts survival to 30-days was 9.0% after NO-CPR, 13.6% after DA-CPR and 15.8% after S-CPR. Using DA-CPR as reference, NO-CPR was associated with lower survival (Conditional OR 0.61, 95% CI 0.52–0.72), absolute difference 4.6% (95% CI 3.0%-6.2%) and S-CPR was associated with higher survival (Conditional OR 1.21 (95% CI 1.05–1.39), absolute difference 2.3% (95% CI 0.5%-4.0%). 30-day survival Conclusion In this nationwide study spontaneous CPR was associated with the highest survival. When spontaneous CPR is not initiated DA-CPR is a reasonable option. Acknowledgement/Funding Swedish Heart and Lung Foundation

Evaluation of emergency medical dispatch in out-of-hospital cardiac arrest in Taipei

Resuscitation ◽  
2007 ◽  
Vol 73 (2) ◽  
pp. 236-245 ◽  
Author(s):  
Matthew Huei-Ming Ma ◽  
Tsung-Chien Lu ◽  
Josh Chian-Shuin Ng ◽  
Chih-Hao Lin ◽  
Wen-Chu Chiang ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Emergency Medical Dispatch ◽  
Emergency Medical ◽  
Hospital Cardiac Arrest
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