Abstract 13761: Does Targeted Temperature Management Modify the Association Between Increasing Epinephrine Dose and Survival Outcomes Following Out-of-Hospital Cardiac Arrest?

Circulation ◽  
2021 ◽  
Vol 144 (Suppl_2) ◽  
Author(s):  
Betty Yang ◽  
Natalie Bulger ◽  
Richard Chocron ◽  
Catherine Counts ◽  
Christopher Drucker ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Cerebral Performance Category ◽  
Neurological Status ◽  
Targeted Temperature Management ◽  
Temperature Management ◽  
Shockable Rhythm ◽  
Epinephrine Dose ◽  
The Relationship ◽  
Dose Dependent ◽  
Hospital Cardiac Arrest

Introduction: Epinephrine (EPI) improves return of circulation after out of hospital cardiac arrest (OHCA). These beneficial cardiac effects are not accompanied by improved neurological survival possibly due to EPI induced microvascular effects and critical brain ischemia. We hypothesized that these dose-dependent adverse EPI effects may be mitigated by targeted temperature management (TTM) such that the relative benefit of TTM is greater at higher EPI doses. Methods: This was a retrospective cohort study of adult non-traumatic OHCA patients in Seattle and King County, Washington from 2008-2018, who were unconscious at hospital admission. We used logistic regression to assess the relationship among EPI dose, TTM, and survival to hospital discharge, and survival with favorable neurological status (Cerebral Performance Category (CPC) 1 or 2). The model evaluated whether TTM modified the association of increasing EPI dose using an interaction term between TTM and EPI dose. Results were stratified by initial shockable vs non-shockable rhythm. Results: Of 5254 eligible patients, the median EPI dose was 2.0 mg (IQR 1.0 - 3.0); 3052 (58%) received TTM. In all, 2177 (41%) survived to discharge, and 1889 (36%) survived with CPC 1-2. Increasing dose of EPI was associated with a decreasing likelihood of survival (OR 0.58, [95% CI 0.55-0.61] for each additional mg of EPI) and CPC 1-2 (OR 0.56, [0.53-0.59]). The dose-dependent EPI association was modified by TTM. After adjustment for Utstein covariates, for each additional mg of EPI, TTM was associated with a relative stepwise improvement in odds of survival (interaction OR 1.35, [1.23, 1.49]) and CPC 1-2 (OR 1.34, [1.21, 1.50]) (Figure). This interaction was consistent among shockable and non-shockable OHCA (Figure). Conclusions: We observed an interaction between TTM and EPI dose such that the beneficial association of TTM increased with increasing EPI dose, suggesting TTM may attenuate the adverse effects of higher dose EPI.

P492Estimation of no-flow duration and survival in patients with an initial shockable rhythm after out-of-hospital cardiac arrest

EP Europace ◽  
2020 ◽  
Vol 22 (Supplement_1) ◽  
Author(s):  
Y Goto ◽  
A Funada ◽  
T Maeda ◽  
F Okada ◽  
Y Goto
Keyword(s):  
Cardiac Arrest ◽  
Cerebral Performance Category ◽  
Flow Duration ◽  
Shockable Rhythm ◽  
Number Of Patients ◽  
Initial Rhythm ◽  
The Relationship ◽  
Neurologically Intact ◽  
Utstein Style ◽  
Hospital Cardiac Arrest

Abstract Funding Acknowledgements Japan Society for the Promotion of Science (KAKENHI Grant No. 18K09999) Background In patients with unwitnessed out-of-hospital cardiac arrest (OHCA), the actual no-flow duration (the time with no organ perfusion) is unclear. However, when these patients have a shockable rhythm as an initial recorded rhythm, the no-flow duration may be relatively short as compared with other initial rhythms, and some patients can obtain a good functional outcome after OHCA. Purpose The purpose of the present study was to estimate the no-flow duration and to determine the relationship between no-flow duration and neurologically intact survival in patients with an initial shockable rhythm after OHCA. Methods We reviewed 82,464 patients with OHCA (aged ≥18 years, non-traumatic, witnessed, and without any bystander interventions) who were included in the All-Japan Utstein-style registry from 2013 to 2017. The study end point was 1-month neurologically intact survival (Cerebral Performance Category scale 1 or 2). No-flow duration was defined as the time from emergency call to emergency medical services (EMS) arrival at the patient site. Results The rate of 1-month neurologically intact survival in the patients with an initial shockable rhythm (n = 10,384, 12.6% of overall patients) was 16.5% (1718/10,384). No-flow duration was significantly and inversely associated with 1-month neurologically intact survival (adjusted odds ratios for 1-minute increments: 0.85, 95% confidence interval: 0.84–0.86). The proportion of patients with a shockable rhythm to the overall patients (y, %) had a high correlational relationship with no-flow duration (x, min), depicted by y = 21.0 - 0.95 × x, R² = 0.935. In this analytical model, the number of patients with shockable rhythm reached null at 22 minutes of no-flow duration. The no-flow durations, beyond which the chance for initial shockable rhythm diminished to <10%, <5%, and <1%, were 12, 13, and 17 minutes, respectively. The rate of neurologically intact survival in the patients with shockable rhythm (y, %) and no-flow duration (x, min) were also found to have a strong correlation, depicted by y = 0.16 × x² - 5.12 × x + 45.0, R² = 0.907. The no-flow durations, beyond which the chance for 1-month neurologically intact survival diminished to <10%, <5%, and <1%, were 10, 11, and 15 minutes, respectively. Conclusions In OHCA patients without any bystander interventions before EMS personnel arrival, when a shockable rhythm is recorded by EMS personnel as an initial rhythm, the no-flow duration after cardiac arrest is highly likely to be <17 minutes regardless of the layperson witness status. The limitation of no-flow duration to obtain a 1-month neurologically intact survival after OHCA may be 15 minutes when the patients have an initial shockable rhythm.

scholarly journals Background Frequency Patterns in Standard Electroencephalography as an Early Prognostic Tool in Out-of-Hospital Cardiac Arrest Survivors Treated with Targeted Temperature Management

2020 ◽  
Vol 9 (4) ◽  
pp. 1113
Author(s):  
Youn-Jung Kim ◽  
Min-Jee Kim ◽  
Yong Seo Koo ◽  
Won Young Kim
Keyword(s):  
Cardiac Arrest ◽  
Clinical Features ◽  
Tertiary Care ◽  
Cerebral Performance Category ◽  
High Specificity ◽  
Targeted Temperature Management ◽  
Temperature Management ◽  
Care Hospital ◽  
Theta Waves ◽  
Hospital Cardiac Arrest

We investigated the prognostic value of standard electroencephalography, a 30-min recording using 21 electrodes on the scalp, during the early post-cardiac arrest period, and evaluated the performance of electroencephalography findings combined with other clinical features for predicting favourable outcomes in comatose out-of-hospital cardiac arrest (OHCA) survivors treated with targeted temperature management (TTM). This observational registry-based study was conducted at a tertiary care hospital in Korea using the data of all consecutive adult non-traumatic comatose OHCA survivors who underwent standard electroencephalography during TTM between 2010 and 2018. The primary outcome was a 6-month favourable neurological outcome (Cerebral Performance Category score of 1 or 2). Among 170 comatose OHCA survivors with median electroencephalography time of 22 h, a 6-month favourable neurologic outcome was observed in 34.1% (58/170). After adjusting other clinical characteristics, an electroencephalography background with dominant alpha and theta waves had the highest odds ratio of 13.03 (95% confidence interval, 4.69–36.22) in multivariable logistic analysis. A combination of other clinical features (age < 65 years, initial shockable rhythm, resuscitation duration < 20 min) with an electroencephalography background with dominant alpha and theta waves increased predictive performance for favourable neurologic outcomes with a high specificity of up to 100%. A background with dominant alpha and theta waves in standard electroencephalography during TTM could be a simple and early favourable prognostic finding in comatose OHCA survivors.

scholarly journals Editor’s Choice-Effects of targeted temperature management on mortality and neurological outcome: A systematic review and meta-analysis

2017 ◽  
Vol 7 (5) ◽  
pp. 467-477 ◽  
Author(s):  
Dylan Stanger ◽  
Vesna Mihajlovic ◽  
Joel Singer ◽  
Sameer Desai ◽  
Rami El-Sayegh ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Neurological Outcome ◽  
Adult Survivors ◽  
Targeted Temperature Management ◽  
Temperature Management ◽  
Shockable Rhythm ◽  
Poor Neurological Outcome ◽  
Meta Analyses ◽  
Hospital Cardiac Arrest ◽  
Quality Evidence

Aims: The purpose of this study was to conduct a systematic review, and where applicable meta-analyses, examining the evidence underpinning the use of targeted temperature management following resuscitation from cardiac arrest. Methods and results: Multiple databases were searched for publications between January 2000–February 2016. Nine Population, Intervention, Comparison, Outcome questions were developed and meta-analyses were performed when appropriate. Reviewers extracted study data and performed quality assessments using Grading of Recommendations, Assessment, Development and Evaluation methodology, the Cochrane Risk Bias Tool, and the National Institute of Health Study Quality Assessment Tool. The primary outcomes for each Population, Intervention, Comparison, Outcome question were mortality and poor neurological outcome. Overall, low quality evidence demonstrated that targeted temperature management at 32–36°C, compared to no targeted temperature management, decreased mortality (risk ratio 0.76, 95% confidence interval 0.61–0.92) and poor neurological outcome (risk ratio 0.73, 95% confidence interval 0.60–0.88) amongst adult survivors of out-of-hospital cardiac arrest with an initial shockable rhythm. Targeted temperature management use did not benefit survivors of in-hospital cardiac arrest nor out-of-hospital cardiac arrest survivors with a non-shockable rhythm. Moderate quality evidence demonstrated no benefit of pre-hospital targeted temperature management initiation. Low quality evidence showed no difference between endovascular versus surface cooling targeted temperature management systems, nor any benefit of adding feedback control to targeted temperature management systems. Low quality evidence suggested that targeted temperature management be maintained for 18–24 h. Conclusions: Low quality evidence supports the in-hospital initiation and maintenance of targeted temperature management at 32–36°C amongst adult survivors of out-of-hospital cardiac arrest with an initial shockable rhythm for 18–24 h. The effects of targeted temperature management on other populations, the optimal rate and method of cooling and rewarming, and effects of fever require further study.

Abstract 347: The Effect of Targeted Temperature Management at 34 °C and 36 °C on Day-30 Neurological Outcomes in Out-of-hospital Cardiac Arrest Patients

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_4) ◽  
Author(s):  
Takeshi Iyonaga ◽  
Ken-ichi Hiasa ◽  
Nobuyuki Enzan ◽  
Masaaki A Nishihara ◽  
Kenzo Ichimura ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Neurological Outcome ◽  
Multivariable Analysis ◽  
Targeted Temperature Management ◽  
Temperature Management ◽  
Target Temperature ◽  
Neurological Outcomes ◽  
Favorable Neurological Outcome ◽  
The Relationship ◽  
Hospital Cardiac Arrest

Introduction: Targeted temperature management (TTM) has established evidence for improving neurological outcomes in cardiac arrest patients who sustained coma after return of spontaneous circulation (ROSC). The target temperature has been recommended to be between 32 and 36 °C. However optimal temperature remains unestablished. This study aimed to assess the relationship between target temperature and neurological outcome by using the Japanese nationwide registry. Methods: This retrospective observational cohort study was based on the Japanese association for acute medicine - out-of-hospital cardiac arrest (JAAM-OHCA) registry during 2014 to 2017. Our study included all initial rhythms and any cause of OHCA patients and excluded age < 18 and Glasgow Coma Scale score > 8. The primary outcome was 30 day favorable neurological outcome, defined as cerebral performance category (CPC) scale 1 and 2. First, to clarify the efficacy of TTM, the neurological outcome was compared whether patients received TTM or not. Next, to evaluate the relationship between neurological outcome and target temperature on TTM, the neurological outcome was compared hypothermia (34 °C) group with normothermia (36 °C) group . Single and multivariable logistic regression analysis was performed. Results: The study included 9930 patients. Of these, 1184 (11.9%) patients received TTM. Favorable neurological outcome was more present in TTM group than in no TTM group (39.7% vs. 4.3%, odds ratio [OR] 14.6, 95% confidence interval [CI] 12.5-17.1, p<0.001). Multivariable analysis showed TTM was associated with favorable neurological outcome (OR 1.6, 95%CI 1.1-2.3, p<0.001). Of TTM group, 801 (68.5%) patients received hypothermia management and 242 (20.7%) patients received normothermia management. Favorable neurological outcome was more present in the hypothermia group than in the normothermia group (42.6% vs. 34.3%, OR 1.42, 95% CI 1.1-1.9, p=0.022). However, the neurological outcome did not differ between these two groups (OR 0.84, 95%CI 0.46-1.5, p<0.57). Conclusions: TTM was significantly associated with favorable neurological outcome. However, neurological outcome was not associated with target temperature on TTM.

Abstract 12975: Socioeconomic Status Impact on Out-of-Hospital Cardiac Arrest Post-Arrest Care and Outcomes

Circulation ◽  
2021 ◽  
Vol 144 (Suppl_2) ◽  
Author(s):  
Ryan Huebinger ◽  
Summer Chavez ◽  
Benjamin Abella ◽  
Rabab Al-Araji ◽  
Jeffrey L Jarvis ◽  
...  
Keyword(s):  
Socioeconomic Status ◽  
Cardiac Arrest ◽  
Low Income ◽  
Cerebral Performance Category ◽  
Coronary Intervention ◽  
Temperature Management ◽  
Census Tracts ◽  
Shockable Rhythm ◽  
Low Education ◽  
Hospital Cardiac Arrest

Introduction: Post-arrest care after out-of-hospital cardiac arrest (OHCA) is critical to optimizing outcomes. Large socioeconomic disparities in prehospital resuscitation interventions have been shown. Less is understood about disparities in post-arrest care and their impact on patient outcomes. We evaluated the association of socioeconomic status (SES) with post-arrest care and outcomes. Methods: We included adult OHCA patients who survived to hospital admission using the 2014-2020 data in Texas from the Cardiac Arrest Registry to Enhance Survival (CARES) . We linked CARES data to census tracts and stratified census tracts above and below the median for SES characteristics: household income, employment rate, and high school graduation. We defined outcomes as targeted temperature management (TTM), Percutaneous Coronary Intervention (PCI), survival to discharge, and survival with a Cerebral Performance Category (CPC) 1-2. We fit a mixed effects model, logistic regression evaluating the association between SES characteristics and outcomes, modeling receiving hospital as the random intercept. We adjusted for age, neighborhood race, sex, bystander witnessed arrest, bystander CPR, and initial shockable rhythm. Results: There were 37,055 adult cases of OHCA taken to 164 hospitals, 9,346 survived to admission; median age was 62, 60.7% were male, 32.5% received TTM, 5.7% received PCI, 34.9% survived to hospital discharge, and 22.0% had a good CPC score. Low employment was associated with low PCI (1.5% v 2.8%, aOR 0.5, 95% CI 0.3-0.9). Low education was linked to worse survival (32.3% v 37.5%, aOR 0.9, 95% CI 0.8-0.99). Low employment was linked to worse CPC (17.5% v 26.4%, aOR 0.8, 95% CI 0.7-0.9). Low income was not associated with TTM (aOR 1.05, 95% CI 0.9-1.2), PCI (aOR 0.9, 95% CI 0.9-1.3), survival (aOR 0.9, 95% CI 0.8-1.0), or good CPC (aOR 1.0, 95% CI 0.9-1.2). Low employment was not associated with TTM (aOR 1.0, 95% CI 0.8-1.1), or survival (aOR 1.0, 95% CI 0.9-1.1). Low education was not associated with low PCI (4.0% v 7.4%, aOR 0.8, 95% CI 0.6-0.1.01), low TTM (aOR 1.0, 95% CI 0.9-1.1), or survival (aOR 0.9, 95% CI 0.8-1.03). Conclusion: SES characteristics were linked to lower PCI rates and worse outcomes, but SES was not associated with TTM.

Targeted Temperature Management in Out-of-Hospital Cardiac Arrest With Shockable Rhythm

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Eva M. Spoormans ◽  
Jorrit S. Lemkes ◽  
Gladys N. Janssens ◽  
Nina W. van der Hoeven ◽  
Lucia S. D. Jewbali ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Targeted Temperature Management ◽  
Temperature Management ◽  
Shockable Rhythm ◽  
Hospital Cardiac Arrest

scholarly journals Mortality and Neurological Outcomes in Out-of-Hospital Cardiac Arrest Patients With and Without Targeted Temperature Management in a Multiethnic Asian Population

2020 ◽  
Vol 49 (3) ◽  
pp. 127-136
Author(s):  
Wan Jing Tay ◽  
Huihua Li ◽  
Andrew FW Ho ◽  
Ching Hui Sia ◽  
Georgina GJ Kwek ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Statistical Significance ◽  
Cerebral Performance Category ◽  
Asian Population ◽  
Targeted Temperature Management ◽  
Temperature Management ◽  
Academic Medical Centre ◽  
Performance Category ◽  
Neurological Outcomes ◽  
Hospital Cardiac Arrest

Introduction: The use of targeted temperature management (TTM) is increasing although adoption is still variable. We describe our 6-year experience and compare the mortality and neurological outcomes of out-of-hospital cardiac arrest (OHCA) patients with and without the use of TTM in a multiethnic Asian population. Materials and Methods: We performed a retrospective observational study at a tertiary academic medical centre. OHCA survivors admitted to our hospital between April 2010‒December 2016 were included. Outcomes of interest were 30-day mortality postresuscitation, Cerebral Performance Category (CPC) and Overall Performance Category (OPC) scores. Results: A total of 121 of 261 patients (46.3%) underwent TTM. TTM patients were younger (TTM 60.0 years old vs no TTM 63.7 years old, P = 0.047). There was no difference in the initial arrest rhythm of shockable origin between the 2 groups (P = 0.289). There was suggestion of lower 30-day mortality (TTM 24.3% vs no TTM 31.4%, P = 0.214), higher and good CPC/OPC scores (TTM 19.0% vs no TTM 15.7%, P = 0.514) with TTM although this did not reach statistical significance. On multivariable logistic regression analysis, TTM was not associated with 30-day mortality (P = 0.07). However, older age, initial non-shockable rhythm and increased duration from arrest to return of spontaneous circulation were associated with increased mortality. Malay ethnicity was associated with a poorer CPC/OPC score. Conclusion: Adoption and outcomes of TTM postresuscitation is variable and there is still a need to optimise management of the identified predictors of survival and good neurological outcomes while TTM is being used. Key words: Heart attack, Neurological function, Neuroprotection, Therapeutic hypothermia

scholarly journals Echocardiographic parameters during prolonged targeted temperature Management in out-of-hospital Cardiac Arrest Survivors to predict neurological outcome – a post-hoc analysis of the TTH48 trial

2021 ◽  
Vol 29 (1) ◽  
Author(s):  
Thomas Hvid Jensen ◽  
Peter Juhl-Olsen ◽  
Bent Roni Ranghøj Nielsen ◽  
Johan Heiberg ◽  
Christophe Henri Valdemar Duez ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Neurological Outcome ◽  
Global Longitudinal Strain ◽  
Left Ventricular ◽  
Targeted Temperature Management ◽  
Temperature Management ◽  
Left Ventricular Ejection ◽  
Secondary Outcome ◽  
Ventricular Ejection Fraction ◽  
Hospital Cardiac Arrest

Abstract Background Transthoracic echocardiographic (TTE) indices of myocardial function among survivors of out-of-hospital cardiac arrest (OHCA) have been related to neurological outcome; however, results are inconsistent. We hypothesized that changes in average peak systolic mitral annular velocity (s’) from 24 h (h) to 72 h following start of targeted temperature management (TTM) predict six-month neurological outcome in comatose OHCA survivors. Methods We investigated the association between peak systolic velocity of the mitral plane (s’) and six-month neurological outcome in a population of 99 patients from a randomised controlled trial comparing TTM at 33 ± 1 °C for 24 h (h) (n = 47) vs. 48 h (n = 52) following OHCA (TTH48-trial). TTE was conducted at 24 h, 48 h, and 72 h after reaching target temperature. The primary outcome was 180 days neurological outcome assessed by Cerebral Performance Category score (CPC180) and the primary TTE outcome measure was s’. Secondary outcome measures were left ventricular ejection fraction (LVEF), global longitudinal strain (GLS), e’, E/e’ and tricuspid annular plane systolic excursion (TAPSE). Results Across all three scan time points s’ was not associated with neurological outcome (ORs: 24 h: 1.0 (95%CI: 0.7–1.4, p = 0.98), 48 h: 1.13 (95%CI: 0.9–1.4, p = 0.34), 72 h: 1.04 (95%CI: 0.8–1.4, p = 0.76)). LVEF, GLS, E/e’, and TAPSE recorded on serial TTEs following OHCA were neither associated with nor did they predict CPC180. Estimated median e’ at 48 h following TTM was 5.74 cm/s (95%CI: 5.27–6.22) in patients with good outcome (CPC180 1–2) vs. 4.95 cm/s (95%CI: 4.37–5.54) in patients with poor outcome (CPC180 3–5) (p = 0.04). Conclusions s’ assessed on serial TTEs in comatose survivors of OHCA treated with TTM was not associated with CPC180. Our findings suggest that serial TTEs in the early post-resuscitation phase during TTM do not aid the prognostication of neurological outcome following OHCA. Trial registration NCT02066753. Registered 14 February 2014 – Retrospectively registered,

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