Prognostic impact of the conversion to a shockable rhythm from a non-shockable rhythm for patients suffering from out-of-hospital cardiac arrest

Resuscitation ◽  
2019 ◽  
Vol 140 ◽  
pp. 43-49 ◽  
Author(s):  
Alexis Cournoyer ◽  
Sylvie Cossette ◽  
Brian J. Potter ◽  
Raoul Daoust ◽  
Luc de Montigny ◽  
...  
BMJ Open ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. e041917
Author(s):  
Fei Shao ◽  
Haibin Li ◽  
Shengkui Ma ◽  
Dou Li ◽  
Chunsheng Li

ObjectiveThe purpose of this study was to assess the trends in outcomes of out-of-hospital cardiac arrest (OHCA) in Beijing over 5 years.DesignCross-sectional study.MethodsAdult patients with OHCA of all aetiologies who were treated by the Beijing emergency medical service (EMS) between January 2013 and December 2017 were analysed. Data were collected using the Utstein Style. Cases were followed up for 1 year. Descriptive statistics were used to characterise the sample and logistic regression was performed.ResultsOverall, 5016 patients with OHCA underwent attempted resuscitation by the EMS in urban areas of Beijing during the study period. Survival to hospital discharge was 1.2% in 2013 and 1.6% in 2017 (adjusted rate ratio=1.0, p for trend=0.60). Survival to admission and neurological outcome at discharge did not significantly improve from 2013 to 2017. Patient characteristics and the aetiology and location of cardiac arrest were consistent, but there was a decrease in the initial shockable rhythm (from 6.5% to 5.6%) over the 5 years. The rate of bystander cardiopulmonary resuscitation (CPR) increased steadily over the years (from 10.4% to 19.4%).ConclusionSurvival after OHCA in urban areas of Beijing did not improve significantly over 5 years, with long-term survival being unchanged, although the rate of bystander CPR increased steadily, which enhanced the outcomes of patients who underwent bystander CPR.


Circulation ◽  
2018 ◽  
Vol 138 (Suppl_2) ◽  
Author(s):  
Meshe Chonde ◽  
Jeremiah Escajeda ◽  
Jonathan Elmer ◽  
Frank X Guyette ◽  
Arthur Boujoukos ◽  
...  

Introduction: Extracorporeal cardiopulmonary resuscitation (ECPR) can treat cardiac arrest refractory to conventional therapy. Many institutions are interested in developing their own ECPR program. However, there are challenges in logistics and implementation. Hypothesis: Development of an ECPR team and identification of UPMC Presbyterian as a receiving center will increase recognition of potential ECPR candidates. Methods: We developed an infrastructure of Emergency Medical Services (EMS), Medic Command, and an in-hospital ECPR team. We identified inclusion criteria for patients with an out of hospital cardiac arrest (OHCA) likely to have a reversible arrest etiology and developed them into a simple checklist. These criteria were: witnessed arrest with bystander CPR, shockable rhythm, and ages 18 to 60. We trained local EMS crews to screen patients and review the checklist with a Command Physician prior to transport to our hospital. Results: From October 2015 to March 31 st 2018, there were 1165 dispatches for OHCA, of which 664 (57%) were treated and transported to the hospital and 120 to our institution. Of these, five patients underwent ECPR. Of the remaining cases, 64 (53%) had nonshockable rhythms, 48 (40%) were unwitnessed arrests, 50 (42%) were over age 60 and the remaining 20 (17%) had no documented reasons for exclusion. Prehospital CPR duration was 26 [IQR 25-40] min. Four patients (80%) underwent mechanical CPR with LUCAS device. Time from arrest to arrive on scene was 5 [IQR 4-6] min and time call MD command was 13 [IQR 7-21] min. Time to transport was 20 [IQR 19-21] min. Time from arrest to initiation of ECMO was 63 [IQR 59-69] min. Conclusions: ECPR is a relatively infrequent occurrence. Implementation challenges include prompt identification of patients with reversible OHCA causes, preferential transport to an ECPR capable facility and changing the focus of EMS in these select patients from a “stay and play” to a “load and go” mentality.


2015 ◽  
Vol 22 (4) ◽  
pp. 266-272 ◽  
Author(s):  
Pamela V.C. Hiltunen ◽  
Tom O. Silfvast ◽  
T. Helena Jäntti ◽  
Markku J. Kuisma ◽  
Jouni O. Kurola

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Makoto Watanabe ◽  
Tasuku Matsuyama ◽  
Hikaru Oe ◽  
Makoto Sasaki ◽  
Yuki Nakamura ◽  
...  

Abstract Background Little is known about the effectiveness of surface cooling (SC) and endovascular cooling (EC) on the outcome of out-of-hospital cardiac arrest (OHCA) patients receiving target temperature management (TTM) according to their initial rhythm. Methods We retrospectively analysed data from the Japanese Association for Acute Medicine Out‐of‐Hospital Cardiac Arrest registry, a multicentre, prospective nationwide database in Japan. For our analysis, OHCA patients aged ≥ 18 years who were treated with TTM between June 2014 and December 2017 were included. The primary outcome was 30-day survival with favourable neurological outcome defined as a Glasgow–Pittsburgh cerebral performance category score of 1 or 2. Cooling methods were divided into the following groups: SC (ice packs, fans, air blankets, and surface gel pads) and EC (endovascular catheters and any dialysis technique). We investigated the efficacy of the two categories of cooling methods in two different patient groups divided according to their initially documented rhythm at the scene (shockable or non-shockable) using multivariable logistic regression analysis and propensity score analysis with inverse probability weighting (IPW). Results In the final analysis, 1082 patients were included. Of these, 513 (47.4%) had an initial shockable rhythm and 569 (52.6%) had an initial non-shockable rhythm. The proportion of patients with favourable neurological outcomes in SC and EC was 59.9% vs. 58.3% (264/441 vs. 42/72), and 11.8% (58/490) vs. 21.5% (17/79) in the initial shockable patients and the initial non-shockable patients, respectively. In the multivariable logistic regression analysis, differences between the two cooling methods were not observed among the initial shockable patients (adjusted odd ratio [AOR] 1.51, 95% CI 0.76–3.03), while EC was associated with better neurological outcome among the initial non-shockable patients (AOR 2.21, 95% CI 1.19–4.11). This association was constant in propensity score analysis with IPW (OR 1.40, 95% CI 0.83–2.36; OR 1.87, 95% CI 1.01–3.47 among the initial shockable and non-shockable patients, respectively). Conclusion We suggested that the use of EC was associated with better neurological outcomes in OHCA patients with initial non-shockable rhythm, but not in those with initial shockable rhythm. A TTM implementation strategy based on initial rhythm may be important.


Author(s):  
Bo Nees Iversen ◽  
Carsten Meilandt ◽  
Ulla Væggemose ◽  
Christian Juhl Terkelsen ◽  
Hans Kirkegaard ◽  
...  

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
David D Salcido ◽  
Allison C Koller ◽  
Cesar D Torres ◽  
Aaron M Orkin ◽  
Rob H Schmicker ◽  
...  

Introduction: The frequency of lethal overdose due to prescription and non-prescription drugs is increasing in North America. The contribution of drug overdose (OD) to regional variation in the incidence and outcome out-of-hospital cardiac arrest (OHCA) is unclear. Objective: To estimate overall and regional variation in incidence and outcomes of emergency medical services (EMS)-treated OD-OHCA cases across North America. Methods: The Resuscitation Outcomes Consortium (ROC) is a clinical research network with 10 regional clinical centers in United States (US) and Canada that uses uniform methods for surveillance of all EMS-treated OHCA in participating regions. Cases of OHCA from 2006 to 2010 were reviewed for evidence of association with or without OD. Incidence of OD-OHCA was calculated as the number of OD-OHCA in a region per 100,000 cumulative person-years, using 2000 US Census and 2006 Statistics Canada population counts. Patient and EMS characteristics as well as outcome were described. Multiple logistic regression was used to describe the association between OD status on return of spontaneous circulation (ROSC) and survival to hospital discharge, while adjusting for case characteristics and consortium center. Results: Included were 56,272 cases of OHCA. Regional incidence of OD-OHCA varied between 0.5 and 2.7 per 100,000 person years (p<0.001), and proportion of OD-OHCA among all EMS-treated OHCA ranged from 0.9% to 3.8%. Table 1 shows outcomes and characteristics stratified by OD status; OD-OHCA were younger, less likely to be witnessed, and less likely to present with a shockable rhythm. Compared to non-OD, OD-OHCA was associated with ROSC (OR: 1.55; 95%CI: 1.35-1.78) and survival (OR: 2.14; 95%CI: 1.72-2.65). Conclusions: OD-OHCA are a small proportion of all OHCA, although incidence varied up to 5-fold across regions. OD-OHCA were more likely to survive than non-OD-OHCA.


Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Markus Keferböck ◽  
Philip Datler ◽  
Mario Krammel ◽  
Elisabeth Lobmeyer ◽  
Alexander Nürnberger ◽  
...  

Background: Sudden cardiac arrest (SCA) and especially the out of hospital cardiac arrest (OHCA) is always an urgent situation, which requires well trained medical personnel. The emergency medical system (EMS) in Vienna took part in the Circulation Improving Care (CIRC) trial form 2008 to 2010. In this time they had an additional training. Therefore we revaluated the outcome of OHCA nowadays. Method: Interim report of a prospective observational study of all humans over eighteen, who suffer an OHCA resuscitated by the EMS in Vienna from August 2013 - April 2014. For those patients, who survived 30 days, a cerebral performance category score (CPC) was evaluated. Results: During nine months 701 patients could be investigated and 625 achieved the protocol for this trial. The median age of the patients was 68 years (IQR 59-79) and 399 (64%) were male. Witnessed by bystanders was the cardiac arrest in 359 (57%) patients. In the latter patients restoration of spontaneous circulation (n=223, 36%)(ROSC) and 30 day survival (n=166, 27%) was significantly more often achieved than in patients with non-witnessed cardiac arrest. Bystanders provided chest compressions in 284 (45%) cases and in this subgroup a shockable initial rhythm was more often (p<0.0001). Still in 189 (53%) of the patients where the cardiac arrest was witnessed, bystander resuscitation wasn′t attempted. An initial shockable rhythm was found in 146 (24%) patients with significant better outcome in all primary outcome measures. Of the 62 (10%) 30-days-survivors, 33 (6%) had good neurological outcome with a CPC 1-2.In 12 (2%) cases the CPC was missing. Conclusion: The results are comparable to findings of our previous studies. A significant better result in all primary outcome measures could be found for witnessed OHCA with an initial shockable rhythm. Furthermore those patients with bystander CPR had significant more often a shockable initial rhythm. Therefore more efforts have to be invested into encouraging the community to start with a bystander CPR if an OHCA is witnessed.


Author(s):  
Rohan Khera ◽  
Paul S Chan ◽  
Michael W Donnino ◽  
Saket Girotra ◽  

Background: For patients with in-hospital cardiac arrests due to non-shockable rhythms, delays in epinephrine administration beyond 5 minutes is associated with worse survival. However, the extent of hospital variation in delayed epinephrine administration and its impact on hospital-level outcomes is unknown. Methods: Within Get with the Guidelines-Resuscitation, we identified 103,932 adult patients (>18 years) at 548 hospitals with an in-hospital cardiac arrest due to a non-shockable rhythm who received at least 1 dose of epinephrine between 2000 to 2014. We constructed two-level hierarchical regression models to quantify hospital variation in rates of delayed epinephrine administration (>5 minutes) and its association with hospital rates of survival to discharge. Results: Among the 548 hospitals, there was substantial variation in rates of delayed epinephrine administration (median 13.5%, range: 0%- 53.8%). The odds of delay in epinephrine administration were 61% higher at one randomly selected hospital compared to a similar patient at another randomly selected hospitals (median odds ratio [OR] 1.61; 95% C.I. 1.54 - 1.67). After adjusting for patient characteristics, the median risk-standardized survival rate for non-shockable in-hospital cardiac arrests was 12.1% and varied significantly across hospitals (range: 5.2% to 30.9%). There was an inverse correlation between a hospital’s rate of delayed epinephrine administration and its risk-standardized survival rate for cardiac arrests due to non-shockable rhythm (ρ= -0.23, P<0.0001). Compared to hospitals in the best quartile, risk-standardized survival was 17.4% lower at hospitals in the worst quartile of delayed epinephrine administration (13.8% vs. 11.4%, P<0.0001, Figure). Conclusions: Although delays in epinephrine administration following in-hospital cardiac arrest are common, there is substantial hospital variation in rates of delayed epinephrine administration. Hospitals with high rates of delayed epinephrine administration were found to have lower rates of risk-adjusted survival. Further studies are needed to determine if improving hospital performance on time to epinephrine administration, especially at hospitals with poor performance on this metric will lead to improvement in outcomes.


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