Abstract 367: Factors That Influence Emergency Responder Treatment Versus Transport Decisions for Out-of-hospital Cardiac Arrest

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_4) ◽  
Author(s):  
Valencia Waller ◽  
Sydney Fouche ◽  
Kaitlyn Entel ◽  
Nasma Berri ◽  
Wilson Nham ◽  
...  

Introduction: Emergency medical system factors that improve out-of-hospital cardiac arrest (OHCA) survival have not been well elucidated. This study explores factors important to decisions to transport patients before obtaining sustained return of spontaneous circulation (ROSC) in the field throughout the OHCA system of care. Choosing to treat versus transport is a complex decision and reflects various aspects of EMS care that may differ across agencies at different levels of performance. Methods: This sequential mixed-methods study used data from the Michigan Cardiac Arrest Registry to Enhance Survival (MI-CARES) for the years 2014—2017 to identify variation in OHCA outcomes across emergency medical services (EMS) agencies. We then sampled emergency medical stakeholders—dispatch, fire, police, EMS, and receiving emergency departments (EDs)—across nine EMS system sites of varied urbanicity: four high-survival, two intermediate-survival, and three low-survival based on a primary outcome of sustained ROSC with pulse upon ED arrival. To qualitatively explore variations in OHCA survival, we conducted key informant and focus group interviews at each site. Qualitative data were analyzed through combined rapid and rigorous analysis, with a focus on treat versus transport decisions in the Advanced Care link of the “chain of survival” within a broader system of care framework. Results: Key factors that weighed into OHCA treatment versus transport decisions pre-ROSC across all sites included: clearly defined roles and protocols, on-scene decision-making authority, distance to the hospital, level of training and expertise, resource availability with regard to personnel and equipment, and payment and reimbursement models. Conclusions: Recognizing the critical role of each link in the “chain of survival,” this study identified key factors that impact treat versus transport decisions from the perspective of EMS stakeholders. The next phase of this work will include validating the importance of the identified factors to OHCA survival through a statewide survey of EMS agencies in Michigan. The final product will be a toolkit of best practices to improve survival across U.S. communities.

Circulation ◽  
2019 ◽  
Vol 140 (Suppl_2) ◽  
Author(s):  
Mahshid Abir ◽  
Timothy C Guetterman ◽  
Sydney Fouche ◽  
Samantha Iovan ◽  
Jessica L Lehrich ◽  
...  

Introduction: EMS system factors key to improved survival for out-of-hospital cardiac arrest (OHCA) have not been well elucidated. This study explores factors associated with sustained return of spontaneous circulation (ROSC) in the field with pulse upon arrival to the ED-a measure of high quality of prehospital care-across the chain of survival. Methods: This sequential mixed methods study used data from the Michigan Cardiac Arrest Registry to Enhance Survival (MI-CARES) to evaluate variation in OHCA outcomes across EMS agencies. Sites were sampled based on geography, rurality, population density, and survival rate. We visited 1 low-, 1 middle-, and 3 high-survival EMS systems. At each site, we conducted key informant interviews with field staff, mid-level managers, and leadership from EMS, police, fire, and dispatch, as well as multidisciplinary focus groups. Transcripts were coded using a structured codebook and analyzed using thematic analysis. Results: An integrated multidisciplinary approach was critical for timely OHCA care coordination across the chain of survival. Themes that emerged across all stakeholders included: 1) OHCA education and multidisciplinary training; 2) shared awareness of roles in the chain of survival and system-wide response; 4) multidisciplinary QI; and 5) leadership and initiative (Table 1). Conclusions: Recognizing the critical role of each level in the chain of survival, this study identified specific practices from EMS system stakeholders that were associated with improved survival. The next phase of this work will include validating the factors associated with increased survival identified through a statewide survey of EMS agencies in Michigan. The final product of this work will include a toolkit of best practices and an implementation guide.


2020 ◽  
Vol 9 (4_suppl) ◽  
pp. S82-S89
Author(s):  
Michael Poppe ◽  
Mario Krammel ◽  
Christian Clodi ◽  
Christoph Schriefl ◽  
Alexandra-Maria Warenits ◽  
...  

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.


2014 ◽  
Vol 23 (1) ◽  
pp. 20-25 ◽  
Author(s):  
L. W. Boyce ◽  
T. P. M. Vliet Vlieland ◽  
J. Bosch ◽  
R. Wolterbeek ◽  
G. Volker ◽  
...  

2018 ◽  
Vol 18 (1) ◽  
pp. 67-74 ◽  
Author(s):  
Matteo Danielis ◽  
Martina Chittaro ◽  
Amato De Monte ◽  
Giulio Trillò ◽  
Davide Durì

Background: The reporting and analysing of data of out-of-hospital cardiac arrests encourages the quality improvement of the emergency medical services. For this reason, the establishment of a sufficiently large patient database is intended to allow analysis of resuscitation treatments for out-of-hospital cardiac arrests and performances of different emergency medical services. Aims: The aim of this study was to describe the demographics, characteristics, outcomes and determinant factors of survival for patients who suffered an out-of-hospital cardiac arrest. Methods: this was a retrospective study including all out-of-hospital cardiac arrest cases treated by the emergency medical service in the district of Udine (Italy) from 1 January 2010–31 December 2014. Results: A total of 1105 out-of-hospital cardiac arrest patients were attended by the emergency medical service. Of these, 489 (44.2%) underwent cardiopulmonary resuscitation, and return of spontaneous circulation was achieved in 142 patients (29%). There was a male predominance overall, and the main age was 72.6 years (standard deviation 17.9). Cardiopulmonary resuscitation before emergency medical service arrival was performed on 62 cases (44%) in the return of spontaneous circulation group, and on 115 cases (33%) in the no return of spontaneous circulation group ( p<0.024). Among the 142 cases of return of spontaneous circulation, 29 (5.9%) survived to hospital discharge. There was a smaller likelihood of return of spontaneous circulation when patients were female (odds ratio 0.61, 0.40–0.93). Patients who had an out-of-hospital cardiac arrest with an initial shockable rhythm (odds ratio 6.33, 3.86–10.39) or an age <60 years (odds ratio 2.91, 1.86–4.57) had a greater likelihood of return of spontaneous circulation. In addition, bystander cardiopulmonary resuscitation (odds ratio 1.56, 1.04–2.33) was associated with an increased chance of return of spontaneous circulation. Conclusion: The incidence of out-of-hospital cardiac arrest and survival rate lies within the known range. A wider database is necessary to achieve a better knowledge of out-of-hospital cardiac arrest and to drive future investments in the healthcare system.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
S Girotra ◽  
B Nallamothu ◽  
Y Tang ◽  
P Chan

Abstract Background Although survival for in-hospital cardiac arrest (IHCA) varies markedly across sites, it remains unknown whether high survival at top-performing hospitals is due to high rates of acute resuscitation survival (i.e., achievement of return of spontaneous circulation [ROSC]), post-resuscitation survival (i.e., survival to discharge among patients who achieved ROSC), or both. Methods Using 2015–2018 Get With The Guidelines (GWTG)-Resuscitation data, we identified 290 hospitals (86,426 patients) with IHCA. For each hospital, we calculated overall risk-standardized survival (RSSR) to discharge for IHCA using a previously validated hierarchical regression model and categorized hospitals into quartiles based on that metric. Risk-adjusted rates of acute resuscitation survival (defined as return of spontaneous circulation for &gt;20 minutes [ROSC]) and post-resuscitation survival (defined as the proportion of patients achieving ROSC who survived to hospital discharge) were also computed for each hospital. We examined the correlation between a hospital's overall RSSR with its risk-adjusted rate of acute resuscitation and post-resuscitation survival. Results Among study hospitals, the median RSSR was 25.1% (inter-quartile range [IQR]: 21.9%–27.7%). The median risk-adjusted rate of acute resuscitation survival was 72.4% (IQR: 67.9%–76.9%) and post-resuscitation survival was 34.0% (IQR: 31.5%–37.7%). Hospital rates of RSSR were less strongly correlated with risk-adjusted rates of acute resuscitation survival (rho=0.50, P&lt;0.001) than post-resuscitation survival (rho=0.90, P&lt;0.001). Compared with hospitals in the lowest quartile of RSSR, hospitals in the highest quartile had substantially higher rates of acute resuscitation survival (Q4: 75.4% vs. Q1: 66.8%; P&lt;0.001) and post-resuscitation survival (Q4: 40.3% vs. Q1: 28.7%; P&lt;0.001). Notably, there was no correlation between hospital risk-adjusted rates of acute resuscitation survival and post-resuscitation survival (rho=0.09, P=0.11). Conclusion Hospital that excel in overall IHCA survival in general excel in either acute resuscitation or post-resuscitation care. As most hospital-based quality improvement initiatives largely focus on acute resuscitation survival, our findings suggest that efforts to strengthen post-resuscitation care may offer additional opportunities to improve IHCA survival. Funding Acknowledgement Type of funding source: Public Institution(s). Main funding source(s): NHLBI


Author(s):  
Pin-Hui Fang ◽  
Yu-Yuan Lin ◽  
Chien-Hsin Lu ◽  
Ching-Chi Lee ◽  
Chih-Hao Lin

Paramedics can provide advanced life support (ALS) for patients with out-of-hospital cardiac arrest (OHCA). However, the impact of emergency medical technician (EMT) configuration on their outcomes remains debated. A three-year cohort study consisted of non-traumatic OHCA adults transported by ALS teams was retrospectively conducted in Tainan City using an Utstein-style population database. The EMT-paramedic (EMT-P) ratio was defined as the EMT-P proportion out of all on-scene EMTs. Among the 1357 eligible cases, the median (interquartile range) number of on-scene EMTs and the EMT-P ratio were 2 (2–2) persons and 50% (50–100%), respectively. The multivariate analysis identified five independent predictors of sustained return of spontaneous circulation (ROSC): younger adults, witnessed cardiac arrest, prehospital ROSC, prehospital defibrillation, and comorbid diabetes mellitus. After adjustment, every 10% increase in the EMT-P ratio was on average associated with an 8% increased chance (adjusted odds ratio [aOR], 1.08; p < 0.01) of sustained ROSC and a 12% increase change (aOR, 1.12; p = 0.048) of favorable neurologic status at discharge. However, increased number of on-scene EMTs was not linked to better outcomes. For nontraumatic OHCA adults, an increase in the on-scene EMT-P ratio resulted in a higher proportion of improved patient outcomes.


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