Abstract 29: Comparison of Amiodarone versus Lidocaine for Treatment of In-Hospital Cardiac Arrest

Circulation ◽  
2019 ◽  
Vol 140 (Suppl_2) ◽  
Author(s):  
Deborah S Wagner ◽  
Humaira Nawer ◽  
Steven L Kronick ◽  
James A Cranford ◽  
Steven M Bradley ◽  
...  

Introduction: Over 200,000 patients are treated annually in the United States for in-hospital cardiac arrest (IHCA). Patients with an initial rhythm of ventricular fibrillation or pulseless ventricular tachycardia (VF/pVT) have a survival rate of less than 50%. The current American Heart Association (AHA) Advanced Cardiovascular Life Support guidelines suggest amiodarone or lidocaine as first-line agents for shock-refractory VF/pVT based on randomized clinical trials in adults with out-of-hospital cardiac arrest. Based on these results, we hypothesized that amiodarone and lidocaine have equivalent efficacy in treating hospitalized patients with VF/pVT. Methods: This is a retrospective risk-adjusted cohort study using the AHA Get with the Guidelines-Resuscitation® (GWTG-R) registry. The study included adult patients between January 1, 2000 to December 31, 2014 with IHCA due to VF/pVT that received either amiodarone or lidocaine. The primary outcome was return of spontaneous circulation (ROSC). Secondary outcomes were 24-hour survival, survival to hospital discharge, and survival with favorable neurologic outcome based on Cerebral Performance Category (CPC) 1 or 2. Results: A total of 14,630 events were included in the analysis. Among patients who met inclusion criteria, 68.7% (n=10,058) were treated with amiodarone and 31.3% (n=4,572) were treated with lidocaine. Results from multivariable logistic regression analysis showed that, controlling for 19 covariates, ROSC rates were not statistically different with lidocaine treatment vs. amiodarone (AOR = 1.02, 95% CI 0.94, 1.11). However, lidocaine treatment was associated with higher odds of a) 24-hour survival, AOR = 1.14, 95% CI 1.06, 1.23; b) survival to discharge, AOR = 1.15, 95% CI 1.06, 1.24; and c) favorable neurologic outcome at hospital discharge, AOR = 1.21, 95% CI 1.11, 1.31. Conclusion: In adult IHCA patients with VF/pVT, treatment with lidocaine compared to amiodarone was not associated with higher ROSC rates, but was associated with higher rates of survival and favorable neurological outcomes. Additional research is needed to determine the optimal antiarrhythmic therapy for VF/pVT in IHCA.

Circulation ◽  
2019 ◽  
Vol 140 (Suppl_2) ◽  
Author(s):  
Akil Awad ◽  
Fabio Silvio Taccone ◽  
Martin Jonsson ◽  
Sune Forsberg ◽  
Jacob Hollenberg ◽  
...  

Background: Early initiation of hypothermia has shown to be important to reduce brain injuries in experimental cardiac arrest models. The aim of this study was to investigate the association between time to initiate cooling and neurological intact survival in patients with out-of-hospital cardiac arrest (OHCA). Methods: A secondary analysis of prospectively collected data from the PRINCESS trial (NCT01400373) including 677 OHCA patients randomized to transnasal evaporative intra-arrest cooling or standard advanced life support and cooling started subsequent to hospital arrival. Time to randomization was used a proxy measurement for time to initiate cooling. An early treatment group was defined as patients randomized by the EMS <20 minutes from the time of the cardiac arrest. Propensity scores were used to find matching patients in the control group. Patients with initial shockable rhythms were analyzed as a predefined subgroup. The primary outcome was good neurologic outcome, Cerebral Performance Category (CPC) 1-2 at 90 days. Secondary outcome was complete recovery (CPC 1). Results: In total 406 patients were randomized <20 minutes from the cardiac arrest and were propensity score matched (1:1). In the propensity score matched analysis the proportion of patients with CPC 1-2 was 21.7% in the intervention and 17.2% in the control group, odds ratio (OR) 1.33, 95% confidence interval (CI) 0.80-2.21, p=0.273. In patients with initial shockable rhythm (79 intervention, 79 control) the difference in CPC 1-2 was 48.1% versus 32.0%, OR 2.05, 95%CI 1.00-4.21, p=0.0498. The proportion of patients with complete neurologic recovery, CPC 1, was 19.7% in the intervention and 13.3% in the control group, OR 1.60, 95% CI 0.92-2.79, p=0.097. In patients with initial shockable rhythm the proportion with CPC 1 was 45.6% versus 24.6%, OR 2.81, 95% CI 1.23-6.42, p=0.014. Conclusions: In this ancillary study of OHCA patients receiving intra-arrest cooling, there were differences in survival with good neurologic outcome and in complete neurological recovery in favor of early intra-arrest cooling patient group compared to standard care. These differences were statistically significant in the subgroup of patients with initial shockable rhythms.


Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Tom P Aufderheide ◽  
Marvin Birnbaum ◽  
Charles Lick ◽  
Brent Myers ◽  
Laurie Romig ◽  
...  

Introduction: Maximizing outcomes after cardiac arrest depends on optimizing a sequence of interventions from collapse to hospital discharge. The 2005 American Heart Association (AHA) Guidelines recommended many new interventions during CPR (‘New CPR’) including use of an Impedance Threshold Device (ITD). Hypothesis: The combination of the ITD and ‘New CPR’ will increase return of spontaneous circulation (ROSC) and hospital discharge (HD) rates in patients with an out-of-hospital cardiac arrest. Methods: Quality assurance data were pooled from 7 emergency medical services (EMS) systems (Anoka Co., MN; Harris Co., TX; Madison, WI; Milwaukee, WI; Omaha, NE; Pinellas Co., FL; and Wake Co., NC) where the ITD (ResQPOD®, Advanced Circulatory Systems; Minneapolis, MN) was deployed for >3 months. Historical or concurrent control data were used for comparison. The EMS systems simultaneously implemented ‘New CPR’ including compression/ventilation strategies to provide more compressions/min and continuous compressions during Advanced Life Support. All sites stressed the importance of full chest wall recoil. The sites have a combined population of ~ 3.2 M. ROSC data were available from all sites; HD data were available as of June 2007 from 5 sites (MN, TX, Milwaukee, NE, NC). Results: A total of 893 patients treated with ‘New CPR’ + ITD were compared with 1424 control patients. The average age of both study populations was 64 years; 65% were male. Comparison of the ITD vs controls (all patients) for ROSC and HD [Odds ratios (OR), (95% confidence intervals), and Fisher’s Exact Test] were: 37.9% vs 33.8% [1.2, (1.02, 1.40), p=0.022] and 15.7% vs 7.9% [2.2, (1.53, 3.07), p<0.001], respectively. Patients with ventricular fibrillation had the best outcomes in both groups. Neurological outcome data are pending. Therapeutic hypothermia was used in some patients (MN, NC) after ROSC. Conclusion: Adoption of the ITD + ‘New CPR’ resulted in only a >10% increase in ROSC rates but a doubling of hospital discharge rates, from 7.9% to 15.7%, (p<0.001). These data represent a currently optimized sequence of therapeutic interventions during the performance of CPR for patients in cardiac arrest and support the widespread use of the 2005 AHA CPR Guidelines including use of the ITD.


2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Ferran Rueda ◽  
Germán Cediel ◽  
Cosme García-García ◽  
Júlia Aranyó ◽  
Marta González-Lopera ◽  
...  

Abstract Background Growth differentiation factor 15 (GDF-15) is an inflammatory cytokine released in response to tissue injury. It has prognostic value in cardiovascular diseases and other acute and chronic conditions. Here, we explored the value of GDF-15 as an early predictor of neurologic outcome after an out-of-hospital cardiac arrest (OHCA). Methods Prospective registry study of patients in coma after an OHCA, admitted in the intensive cardiac care unit from a single university center. Serum levels of GDF-15 were measured on admission. Neurologic status was evaluated according to the cerebral performance category (CPC) scale. The relationship between GDF-15 levels and poor neurologic outcome at 6 months was analyzed. Results Among 62 patients included, 32 (51.6%) presented poor outcome (CPC 3–5). Patients with CPC 3–5 exhibited significantly higher GDF-15 levels (median, 17.1 [IQR, 11.1–20.4] ng/mL) compared to those with CPC 1–2 (7.6 [IQR, 4.1–13.1] ng/mL; p = 0.004). Multivariable logistic regression analyses showed that age (OR, 1.09; 95% CI 1.01–1.17; p = 0.020), home setting arrest (OR, 8.07; 95% CI 1.61–40.42; p = 0.011), no bystander cardiopulmonary resuscitation (OR, 7.91; 95% CI 1.84–34.01; p = 0.005), and GDF-15 levels (OR, 3.74; 95% CI 1.32–10.60; p = 0.013) were independent predictors of poor outcome. The addition of GDF-15 in a dichotomous manner (≥ 10.8 vs. < 10.8 ng/mL) to the resulting clinical model improved discrimination; it increased the area under the curve from 0.867 to 0.917, and the associated continuous net reclassification improvement was 0.90 (95% CI 0.48–1.44), which allowed reclassification of 37.1% of patients. Conclusions After an OHCA, increased GDF-15 levels were an independent, early predictor of poor neurologic outcome. Furthermore, when added to the most common clinical factors, GDF-15 improved discrimination and allowed patient reclassification.


Circulation ◽  
2015 ◽  
Vol 132 (suppl_3) ◽  
Author(s):  
Ian R Drennan ◽  
Steve Lin ◽  
Kevin E Thorpe ◽  
Jason E Buick ◽  
Sheldon Cheskes ◽  
...  

Introduction: Targeted temperature management (TTM) reduces neurologic injury from out-of-hospital cardiac arrest (OHCA). As the risk of neurologic injury increases with prolonged cardiac arrests, the benefit of TTM may depend upon cardiac arrest duration. We hypothesized that there is a time-dependent effect of TTM on neurologic outcomes from OHCA. Methods: Retrospective, observational study of the Toronto RescuNET Epistry-Cardiac Arrest database from 2007 to 2014. We included adult (>18) OHCA of presumed cardiac etiology that remained comatose (GCS<10) after a return of spontaneous circulation. We used multivariable logistic regression to determine the effect of TTM and the duration of cardiac arrest on good neurologic outcome (Modified Rankin Scale (mRS) 0-3) and survival to hospital discharge while controlling for other known predictors. Results: There were 1496 patients who met our inclusion criteria, of whom 981 (66%) received TTM. Of the patients who received TTM, 59% had a good neurologic outcome compared to 39% of patients who did not receive TTM (p< 0.001). After adjusting for the Utstein variables, use of TTM was associated with improved neurologic outcome (OR 1.60, 95% CI 1.10-2.32; p = 0.01) but not with survival to discharge (OR 1.23, 95% CI 0.90-1.67; p = 0.19). The impact of TTM on neurologic outcome was dependent on the duration of cardiac arrest (p<0.05) (Fig 1). Other significant predictors of good neurologic outcome were younger age, public location, initial shockable rhythm, and shorter duration of cardiac arrest (all p values < 0.05). A subgroup analysis found the use of TTM to be associated with neurologic outcome in both shockable (p = 0.01) and non-shockable rhythms (p = 0.04) but was not associated with survival to discharge in either group (p = 0.12 and p = 0.14 respectively). Conclusion: The use of TTM was associated with improved neurologic outcome at hospital discharge. Patients with prolonged durations of cardiac arrest benefited more from TTM.


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Yo Sep Shin ◽  
Youn-Jung Kim ◽  
Seung Mok Ryoo ◽  
Chang Hwan Sohn ◽  
Shin Ahn ◽  
...  

AbstractPrecise criteria for extracorporeal cardiopulmonary resuscitation (ECPR) are still lacking in patients with out-of-hospital cardiac arrest (OHCA). We aimed to investigate whether adopting our hypothesized criteria for ECPR to patients with refractory OHCA could benefit. This before-after study compared 4.5 years after implementation of ECPR for refractory OHCA patients who met our criteria (Jan, 2015 to May, 2019) and 4 years of undergoing conventional CPR (CCPR) prior to ECPR with patients who met the criteria (Jan, 2011 to Jan, 2014) in the emergency department. The primary and secondary outcomes were good neurologic outcome at 6-months and 1-month respectively, defined as 1 or 2 on the Cerebral Performance Category score. A total of 70 patients (40 with CCPR and 30 with ECPR) were included. For a good neurologic status at 6-months and 1-month, patients with ECPR (33.3%, 26.7%) were superior to those with CCPR (5.0%, 5.0%) (all Ps < 0.05). Among patients with ECPR, a group with a good neurologic status showed shorter low-flow time, longer extracorporeal membrane oxygenation duration and hospital stays, and lower epinephrine doses used (all Ps < 0.05). The application of the detailed indication before initiating ECPR appears to increase a good neurologic outcome rate.


Circulation ◽  
2015 ◽  
Vol 132 (suppl_3) ◽  
Author(s):  
Furqan B Irfan ◽  
Zain A Bhutta ◽  
Tooba Tariq ◽  
Loua A Shaikh ◽  
Pregalathan Govender ◽  
...  

Aim: There is a scarcity of population based studies on out-of-hospital cardiac arrest (OHCA) in the Middle East and the wider Asian region. This study describes the Epidemiology and outcomes of OHCA in Qatar, a Middle Eastern country. Methods: Data was extracted retrospectively from a national registry on all adult cardiac origin OHCA patients attended by Emergency Medical Services (EMS) in Qatar, from June 2012 - May 2013. Results: The annual crude incidence rate of cardiac origin OHCA attended by EMS was 23.5 per 100,000. The age-sex standardized incidence rate was 87.83 per 100,000 population. The annual sex-standardized incidence rate for males and females was 91.5 and 84.25 per 100,000 population respectively. Of 447 adult, cardiac origin OHCA patients included in the final analysis, most were male (n=360, 80.5%) with median age of 51 years (IQR = 39-66). Frequently observed nationalities of OHCA cases were Qatari (n=89, 19.9%), Indian (n=74, 16.6%) and Nepalese (n=52, 11.6%). Common initial cardiac arrest rhythms were asystole (n=301, 67.3%), ventricular fibrillation (n=82, 18.3%) and pulseless electrical activity (n=49, 11%). OHCA was unwitnessed (n=220, 49%) in nearly half of the cases while bystanders witnessed it in 170 (38%) patients. Bystander CPR was carried out in 92 (20.6%) of the cases. Of 187 (41.8%) patients who were given shocks, bystander defibrillation was delivered to 12 (2.7%) patients. Prehospital outcomes; 332 (74.3%) patients did not achieve return of spontaneous circulation (ROSC), 40 (8.9%) patients achieved unsustainable ROSC, 58 (13%) achieved ROSC till Emergency department (ED) handover and 5 patients achieved ROSC but rearrested again before reaching ED. Survival to hospital discharge occurred in 38 (8.5%) patients. Neurological outcomes were assessed utilizing Cerebral Performance Category [CPC] scores with a favorable CPC score of 1-2 at discharge in 27 (6%) patients, while 11 (2.5%) patients had a poor CPC score of 3-4. Of those with CPC score 1-2 at hospital discharge, 59% and 26% had CPC score 1-2, at 1 and 3 years follow-up respectively. Overall survival was 9.7%. Conclusion: Standardized rates are comparable to western countries, there are significant opportunities to improve outcomes, including better bystander CPR.


Circulation ◽  
2018 ◽  
Vol 138 (Suppl_2) ◽  
Author(s):  
Johanna C Moore ◽  
Michael Grahl ◽  
Tracy Marko ◽  
Ariel Blythe-Reske ◽  
Amber Lage ◽  
...  

Background: Rates of neurologically intact survival after cardiac arrest remain abysmal. Neuro-prognostication intra-arrest is challenging, with few real-time factors that can be used to determine patient prognosis. During the implementation of a new cardiopulmonary resuscitation (CPR) protocol in a large urban pre-hospital system, first responders prospectively recorded the presence of signs of perfusion during CPR. Hypothesis: Positive signs of perfusion would be a predictor of a good neurologic outcome in this observational study, as defined by Cerebral Performance Category (CPC) Score of 1 or 2. Methods: Basic life support first responders (n = 420) and paramedics (n = 207) underwent training including didactic and hands-on sessions to learn the new protocol, which included active compression-decompression CPR with an impedance threshold device. In addition to patient demographics and circumstances of cardiac arrest, signs of perfusion during CPR were prospectively recorded and included improved color, pulse during CPR, gasping, and movement during CPR. Chart review was performed to determine CPC score at discharge. Data were analyzed using descriptive statistics and calculation of unadjusted odds ratios. Results: The new protocol began May 1, 2017. Cases from May 2017-November 2017 (n= 102) were reviewed, with complete data available for 96 patients (94%). The median age was 56 (range 25-97), 54/91 (59%) male, 43/102 (42%) witnessed, 31/90 (34%) shockable rhythm, and 51/102 (50%) receiving bystander CPR. Improved color during CPR was seen in 23/102 (23%), pulse during CPR in 17/102 (17%), gasping in 18/102 (18%), and movement during CPR in 5/102 (5%). Any sign of perfusion during CPR was seen in 47/102 (46%), and 13/96 (13.5%) had a CPC score of 1 or 2 at discharge. The unadjusted OR for any sign of perfusion during CPR for a CPC score of 1 or 2 was 26 (95% CI 3 - 213) and for any sign of perfusion during CPR for ROSC was 9 (95% CI 3 - 24). Conclusions: Positive signs of perfusion during CPR noted by first responders strongly predicted ROSC and neurologically intact survival in this small sample. This suggests the importance of prospectively recording signs of perfusion during resuscitation, and communicating these observations during transfer of care.


2019 ◽  
Vol 35 (1) ◽  
pp. 17-23
Author(s):  
Julian G. Mapp ◽  
Anthony M. Darrington ◽  
Stephen A. Harper ◽  
Chetan U. Kharod ◽  
David A. Miramontes ◽  
...  

AbstractIntroduction:To date, there are no published data on the association of patient-centered outcomes and accurate public-safety answering point (PSAP) dispatch in an American population. The goal of this study is to determine if PSAP dispatcher recognition of out-of-hospital cardiac arrest (OHCA) is associated with neurologically intact survival to hospital discharge.Methods:This retrospective cohort study is an analysis of prospectively collected Quality Assurance/Quality Improvement (QA/QI) data from the San Antonio Fire Department (SAFD; San Antonio, Texas USA) OHCA registry from January 2013 through December 2015. Exclusion criteria were: Emergency Medical Services (EMS)-witnessed arrest, traumatic arrest, age <18 years old, no dispatch type recorded, and missing outcome data. The primary exposure was dispatcher recognition of cardiac arrest. The primary outcome was neurologically intact survival (defined as Cerebral Performance Category [CPC] 1 or 2) to hospital discharge. The secondary outcomes were: bystander cardiopulmonary resuscitation (CPR), automated external defibrillator (AED) use, and prehospital return of spontaneous return of circulation (ROSC).Results:Of 3,469 consecutive OHCA cases, 2,569 cases were included in this analysis. The PSAP dispatched 1,964/2,569 (76.4%) of confirmed OHCA cases correctly. The PSAP dispatched 605/2,569 (23.6%) of confirmed OHCA cases as another chief complaint. Neurologically intact survival to hospital discharge occurred in 99/1,964 (5.0%) of the recognized cardiac arrest group and 28/605 (4.6%) of the unrecognized cardiac arrest group (OR = 1.09; 95% CI, 0.71–1.70). Bystander CPR occurred in 975/1,964 (49.6%) of the recognized cardiac arrest group versus 138/605 (22.8%) of the unrecognized cardiac arrest group (OR = 3.34; 95% CI, 2.70–4.11).Conclusion:This study found no association between PSAP dispatcher identification of OHCA and neurologically intact survival to hospital discharge. Dispatcher identification of OHCA remains an important, but not singularly decisive link in the OHCA chain of survival.


Circulation ◽  
2019 ◽  
Vol 140 (24) ◽  
Author(s):  
Jonathan P. Duff ◽  
Alexis A. Topjian ◽  
Marc D. Berg ◽  
Melissa Chan ◽  
Sarah E. Haskell ◽  
...  

This 2019 focused update to the American Heart Association pediatric advanced life support guidelines follows the 2018 and 2019 systematic reviews performed by the Pediatric Life Support Task Force of the International Liaison Committee on Resuscitation. It aligns with the continuous evidence review process of the International Liaison Committee on Resuscitation, with updates published when the International Liaison Committee on Resuscitation completes a literature review based on new published evidence. This update provides the evidence review and treatment recommendations for advanced airway management in pediatric cardiac arrest, extracorporeal cardiopulmonary resuscitation in pediatric cardiac arrest, and pediatric targeted temperature management during post–cardiac arrest care. The writing group analyzed the systematic reviews and the original research published for each of these topics. For airway management, the writing group concluded that it is reasonable to continue bag-mask ventilation (versus attempting an advanced airway such as endotracheal intubation) in patients with out-of-hospital cardiac arrest. When extracorporeal membrane oxygenation protocols and teams are readily available, extracorporeal cardiopulmonary resuscitation should be considered for patients with cardiac diagnoses and in-hospital cardiac arrest. Finally, it is reasonable to use targeted temperature management of 32°C to 34°C followed by 36°C to 37.5°C, or to use targeted temperature management of 36°C to 37.5°C, for pediatric patients who remain comatose after resuscitation from out-of-hospital cardiac arrest or in-hospital cardiac arrest.


Circulation ◽  
2019 ◽  
Vol 140 (24) ◽  
Author(s):  
Jonathan P. Duff ◽  
Alexis A. Topjian ◽  
Marc D. Berg ◽  
Melissa Chan ◽  
Sarah E. Haskell ◽  
...  

This 2019 focused update to the American Heart Association pediatric basic life support guidelines follows the 2019 systematic review of the effects of dispatcher-assisted cardiopulmonary resuscitation (DA-CPR) on survival of infants and children with out-of-hospital cardiac arrest. This systematic review and the primary studies identified were analyzed by the Pediatric Task Force of the International Liaison Committee on Resuscitation. It aligns with the International Liaison Committee on Resuscitation’s continuous evidence review process, with updates published when the International Liaison Committee on Resuscitation completes a literature review based on new published evidence. This update summarizes the available pediatric evidence supporting DA-CPR and provides treatment recommendations for DA-CPR for pediatric out-of-hospital cardiac arrest. Four new pediatric studies were reviewed. A systematic review of this data identified the association of a significant improvement in the rates of bystander CPR and in survival 1 month after cardiac arrest with DA-CPR. The writing group recommends that emergency medical dispatch centers offer DA-CPR for presumed pediatric cardiac arrest, especially when no bystander CPR is in progress. No recommendation could be made for or against DA-CPR instructions when bystander CPR is already in progress.


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