Abstract 349: Target Temperature Management After Return of Spontaneous Circulation Did Not Ameliorate Mid-term (30 to 90-day) Neurological Improvement in Out-of-hospital Cardiac Arrest Patients

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_4) ◽  
Author(s):  
Hiromichi Naito ◽  
Takashi Yorifuji ◽  
Tetsuya Yumoto ◽  
Tsuyoshi Nojima ◽  
Noritomo Fujisaki ◽  
...  
Keyword(s):  
Logistic Regression ◽  
Cardiac Arrest ◽  
Regression Analysis ◽  
Spontaneous Circulation ◽  
Temperature Management ◽  
Multivariable Logistic Regression Analysis ◽  
Return Of Spontaneous Circulation ◽  
Neurological Improvement ◽  
Hospital Cardiac Arrest

Introduction: Mid/long-term outcomes of out-of-hospital cardiac arrest (OHCA) survivors have not been extensively studied. Targeted temperature management (TTM) after return of spontaneous circulation is one known therapeutic approach to ameliorate short-term neurological improvement of OHCA patients; however, the prognostic significance of TTM in the mid/long-term clinical setting have not been defined. Hypothesis: TTM would confer additional improvement of OHCA patients’ mid-term neurological outcomes. Methods: Retrospective study using the Japanese Association for Acute Medicine OHCA Registry (Jun 2014 - Dec 2017): a nationwide multicenter registry. Patients who did not survive 30 days after OHCA, those with missing 30-day Cerebral Performance Category (CPC) scores, and those < 18 years old were excluded. Primary endpoint was alteration of neurological function evaluated with 30-day and 90-day CPC. Association between application of TTM (33-36°C) and mid-term CPC alteration was evaluated. Multivariable logistic regression analysis was used for the primary outcome; results are expressed with odds ratio (OR) and 95% confidence interval (CI). Results: We included 2,905 in the analysis. Patient characteristics were: age: 67 [57 - 78] years old, male gender: 70.8%, witnessed collapse: 81.4%, dispatcher instruction for CPR: 51.6%, initial shockable rhythm: 67.0%, and estimated cardiac origin: 76.5%. TTM was applied to 1,352/2,905 (46.5%) patients. Thirty-day CPC values in surviving patients were: CPC 1: 1,155/2,905 (39.8%), CPC 2: 321/2,905 (11.1%), CPC 3: 497/2,905 (17.1%), and CPC 4: 932/2,905 (32.1%), respectively. Ninety-day CPC values were: CPC 1: 866/1,868 (46.4%), CPC 2: 154/1,868 (8.2%), CPC 3: 224/1,868 (12.0%), CPC 4: 392/1,868 (20.1%), and CPC 5: 232/1,868 (12.4%), respectively. Of 1,636 patients with 90-day survival, 28 (1.7%) demonstrated improved CPC at 90 days, whereas, 133 (8.1%) showed worsened CPC at 90 days compared with 30-day CPC, respectively. Multivariable logistic regression analysis revealed TTM did not result in favorable mid-term neurological changes (adjusted OR: 1.44, 95% CI: 0.48 - 4.31). Conclusions: TTM may not contribute to the beneficial effect on OHCA patients’ mid-term neurological changes.

scholarly journals The Association of Extreme Tachycardia and Sustained Return of Spontaneous Circulation after Nontraumatic Out-of-Hospital Cardiac Arrest

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Dong Keon Lee ◽  
Eugi Jung ◽  
You Hwan Jo ◽  
Joonghee Kim ◽  
Jae Hyuk Lee ◽  
...  
Keyword(s):  
Heart Rate ◽  
Logistic Regression ◽  
Cardiac Arrest ◽  
Regression Model ◽  
Vital Sign ◽  
High Probability ◽  
Logistic Regression Model ◽  
Spontaneous Circulation ◽  
Return Of Spontaneous Circulation ◽  
Hospital Cardiac Arrest

Objective. Heart rate (HR), an essential vital sign that reflects hemodynamic stability, is influenced by myocardial oxygen demand, coronary blood flow, and myocardial performance. HR at the time of the return of spontaneous circulation (ROSC) could be influenced by the β1-adrenergic effect of the epinephrine administered during cardiopulmonary resuscitation (CPR), and its effect could be decreased in patients who have the failing heart. We aimed to investigate the association between HR at the time of ROSC and the outcomes of adult out-of-hospital cardiac arrest (OHCA) patients. Methods. This study was a secondary analysis of a cardiac arrest registry from a single institution from January 2008 to July 2014. The OHCA patients who achieved ROSC at the emergency department (ED) were included, and HR was retrieved from an electrocardiogram or vital sign at the time of ROSC. The patients were categorized into four groups according to the HR (bradycardia (HR < 60), normal HR (60 ≤ HR ≤ 100), tachycardia (100 < HR < 150), and extreme tachycardia (HR ≥ 150)). The primary outcome was the rate of sustained ROSC and the secondary outcomes were the rate of one-month survival and six-month good neurologic outcome. Results. A total of 330 patients were included. In the univariate logistic regression model, the rate of sustained ROSC increased by 17% as HR increased by every 10 beats per minute (bpm) (odds ratio (OR), 1.171; 95% confidence interval (CI), 1.077–1.274, p<0.001). In the multivariate logistic regression model, extreme tachycardia was independently associated with a high probability of sustained ROSC compared to normal heart rate (OR, 15.96; 95% CI, 2.04–124.93, p=0.008). Conclusion. Extreme tachycardia (HR ≥ 150) at the time of ROSC is independently associated with a high probability of sustained ROSC in nontraumatic adult OHCA patients.

Abstract 418: Categorization of Post-Cardiac Arrest Patients According to the Pattern of Amplitude-Integrated Electroencephalography After Return of Spontaneous Circulation: Analysis of Long-Term Prognosis

Circulation ◽  
2019 ◽  
Vol 140 (Suppl_2) ◽  
Author(s):  
Kazuhiro Sugiyama ◽  
Kazuki Miyazaki ◽  
Yuichi Hamabe
Keyword(s):  
Cardiac Arrest ◽  
Hospital Discharge ◽  
Spontaneous Circulation ◽  
Neurological Function ◽  
Temperature Management ◽  
Return Of Spontaneous Circulation ◽  
Good Outcome ◽  
Long Term Prognosis ◽  
One Year

Introduction: Amplitude-integrated electroencephalography (aEEG) is a type of quantitative EEG easily interpreted by emergency physicians and intensivists at the bedside. We previously reported that categorizing post-cardiac arrest patients according to the pattern of aEEG, after return of spontaneous circulation (ROSC), could help predict the neurological function at hospital discharge (Critical Care. 2018;20:226). In post-cardiac arrest patients, increasing importance is being placed on long-term prognosis. In this study we evaluated the neurological outcome of patients in each category from our previous study, one year after cardiac arrest. Methods: We assessed the outcomes of patients who received post-cardiac arrest care, including targeted temperature management (TTM) and aEEG monitoring, in our tertiary emergency center, between March 2013 and April 2017. The patients were divided into four categories: C1 included those who displayed continuous normal voltage (CNV), within 12 hours of ROSC, and the best aEEG pattern in post-cardiac arrest patients; C2 included those who recovered CNV between 12 and 36 hours after ROSC; C3 included those with no CNV up to 36 hours after ROSC; and C4 included those who revealed burst suppression any time after ROSC. A good outcome was defined as a cerebral performance category (CPC) of 1 or 2, one year after cardiac arrest. Results: A total of 60 patients, with a median age of 60 years, were assessed; of them, 41 (68%) had an initial shockable rhythm. A good outcome was recorded in 18/19 (95%) C1 patients, 8/14 (57%) C2 patients, 1/10 (10%) C3 patients, and 0/14 C4 patients. Three patients could not be categorized because the recording period was too short. Conclusion: The categorization of post-cardiac arrest patients according to the pattern of aEEG after ROSC may be useful to predict long-term neurological function. C1 patients had excellent prognosis, while C3 and C4 patients had poor prognosis. However, one patient in the C3 group had CPC 3 at hospital discharge and then recovered to CPC 2 within one year. Withdrawal of care should be considered cautiously, using a multimodal approach, for patients in this category. C2 patients have borderline prognosis and are targets for intensive post-cardiac neurological care.

Abstract 14644: Impact of Time to Return of Spontaneous Circulation on Neuro-protective Effect of Target Temperature Management at 33 and 36 Degrees in Comatose Survivors of Out of Hospital Cardiac Arrest

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Jesper Kjaergaard ◽  
Matilde Winther-Jensen ◽  
Niklas Nielsen ◽  
Anders åneman ◽  
Wise P Matt ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Neurological Outcome ◽  
Spontaneous Circulation ◽  
Temperature Management ◽  
Target Temperature Management ◽  
Significant Prognostic Factor ◽  
Target Temperature ◽  
Return Of Spontaneous Circulation ◽  
Prolonged Time ◽  
Hospital Cardiac Arrest

Introduction: Prolonged time to Return of Spontaneous Circulation (ttROSC) after Out of Hospital Cardiac Arrest (OHCA) has consistently been associated with adverse outcome by a plausible direct relation to severity of anoxic injury. Hypothesis: Target temperature management (TTM) is assumed effective against anoxic brain injury and we hypothesized that TTM at 33 degrees would be more beneficial with prolonged time to ROSC compared to 36 degrees. Methods: In a post hoc analysis of the TTM trial, which showed no overall benefit of targeting 33 °C over 36 in 939 patients (NEJM 2013), we investigated the relation of time to ROSC and mortality and neurological outcome as assessed by the Cerebral Performance Category (CPC) and Modified Ranking Scale (mRS) after 180 days. Results: Prolonged ttROSC was significantly and independently associated with increased mortality, p<0.001 (figure), with Hazard Ratio (HR) of 1.02 (95% CI 1.01-1.02, p<0.001) per minute increase and level of TTM did not modify this association, p interaction =0.85. In survivors prolonged ttROSC was associated with increased odds of surviving with an unfavorable neurological outcome for CPC (p=0.008 for CPC 3-4) and a similar trend, albeit not statistically significant was observed for mRS (p=0.17, mRS 4-5). Odds for unfavorable neurological outcome (CPC>2, mRS>3) was not modified by levels of TTM overall. Conclusion: Time to ROSC remains a significant prognostic factor in comatose patients resuscitated from OHCA with regards to risk of death and risk of adverse neurological outcome in survivors. TTM at 33 degrees offers no advantage over targeting 36 degrees with regards to mortality or neurological outcome in patients with prolonged time to ROSC. Figure: Mortality rates stratified by quartiles of tome to ROSC and by TTM level. Differences tested by log rank test in between TTM in strata

Abstract 346: Targeted Temperature Management is Associated with Improved Neurological Outcomes in Witnessed Out-of-hospital Cardiac Arrest Patients Who Achieve Early Return of Spontaneous Circulation

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_4) ◽  
Author(s):  
Nobuyuki Enzan ◽  
Ken-ichi Hiasa ◽  
Kenzo Ichimura ◽  
Masaaki Nishihara ◽  
Takeshi Iyonaga ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Propensity Score ◽  
Propensity Score Matching ◽  
Odds Ratio ◽  
Spontaneous Circulation ◽  
Temperature Management ◽  
Return Of Spontaneous Circulation ◽  
Neurological Outcomes ◽  
Propensity Score Matching Analysis ◽  
Hospital Cardiac Arrest

Background: Previous randomized controlled trials demonstrated the efficacy of targeted temperature management (TTM) in out-of-hospital cardiac arrest (OHCA) patients with both shockable and non-shockable rhythm. Real-world evidence for TTM using large OHCA database are scarce, and no study has investigated the relationship between TTM and time-to-return of spontaneous circulation (ROSC). Methods: The Japanese Association for Acute Medicine - out-of-hospital cardiac arrest (JAAM-OHCA) Registry is a multicenter, prospective, observational registry including 34,754 OHCA patients between 2014 and 2017. Patients with witnessed non-traumatic OHCA who had been resuscitated and were in a coma were included. Eligible patients were divided into two groups according to the use of TTM. The primary outcome was defined as a Cerebral Performance Categories (CPC) Scale 1-2 at 30 days after OHCA. The propensity score matching analysis was used. The cubic spline analysis of the odds ratio of CPC 1-2 for TTM use by time-to-ROSC was performed. Results: Out of 34,754 patients with OHCA, 5,261 patients were included. The mean age was 70.3 years, and 3,417 (65.0%) were male. CPC 1-2 was more frequently observed in the TTM group in propensity score matching analysis (15.1% vs. 8.5%; odds ratio 1.92; 95% confidence interval 1.04-3.53; P=0.037). The cubic spline analysis showed that TTM was associated with CPC 1-2 in witnessed OHCA patients, which did not reach statistical significance in patients with time-to-ROSC longer than 50 min. Conclusions: TTM was associated with better neurological outcomes in witnessed OHCA patients, especially when patients were resuscitated within 50 min after collapse.

Abstract 152: Cerebral Oximetry During Pediatric In-hospital Cardiac Arrest

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_4) ◽  
Author(s):  
Ivie D Esangbedo ◽  
Prakadeshwari Rajapreyar ◽  
Matthew Kirschen ◽  
Richard Hanna ◽  
Dana E Niles ◽  
...  
Keyword(s):  
Congenital Heart Disease ◽  
Logistic Regression ◽  
Cardiac Arrest ◽  
Heart Disease ◽  
Congenital Heart ◽  
Spontaneous Circulation ◽  
Cerebral Oximetry ◽  
Return Of Spontaneous Circulation ◽  
Pediatric Resuscitation ◽  
Hospital Cardiac Arrest

Introduction: Cerebral near-infrared spectroscopy (NIRS) measuring regional oxygen saturation (rSO 2 ) during cardiopulmonary resuscitation (CPR) is associated with return of spontaneous circulation (ROSC) and survival to hospital discharge (SHD) in adults, with limited data in children. We hypothesized mean cerebral rSO 2 during pediatric in-hospital cardiac arrest (IHCA) would be associated with return of spontaneous circulation (ROSC). Methods: Consecutive case series of pediatric IHCA events with rSO 2 data reported between 2016-2020 by 3 sites to the Pediatric Resuscitation Quality (pediRES-Q) collaborative. We excluded patients with CPR duration ≤2 minutes or who had return of circulation via extracorporeal membrane oxygenation. We calculated mean rSO 2 for duration of CPR and the primary outcome measure was ROSC. Exploratory sensitivity analyses were performed for cutoffs of mean rSO 2 >25, >30, >35, >40 and >50%. Analysis was done using independent samples t test, Exact logistic regression and Fisher’s exact test. Results: Of 36 events (26 index), median age was 3 [IQR 1,7.8] months; 29 (80.5%) had congenital heart disease and 15 (41.7%) had single ventricle (SV) physiology. Median CPR duration was 7.5 [IQR 3.8, 32.2] minutes and 28/36 (77.8%) had ROSC. Mean intra-arrest cerebral rSO 2 was 44.2% (±19.5) for ROSC vs. 37.4% (±15) for non-ROSC group ( p =0.267). Using Exact logistic regression, there was no association found between rSO 2 and ROSC, even after controlling for age, presence of congenital heart disease, and SV physiology. Using mean rSO 2 cutoffs >25, >30, >35, >40, and >50%, we found no significant association with ROSC. We found same result in the SV subgroup. Conclusion: In this small pediatric cohort of predominantly cardiac patients, there was no significant association between cerebral rSO 2 during pediatric cardiac arrest and ROSC, even after controlling for important confounders of age and SV physiology. More extensive studies using larger populations, and evaluating intra-arrest change in cerebral rSO 2 from baseline, are warranted to provide more insight into the possibilities of using rSO 2 to guide CPR.

scholarly journals Increased QT Dispersion Is Linked to Worse Outcomes in Patients Hospitalized for Out‐of‐Hospital Cardiac Arrest

2020 ◽  
Vol 9 (16) ◽  
Author(s):  
Marinos Kosmopoulos ◽  
Henri Roukoz ◽  
Pierre Sebastian ◽  
Rajat Kalra ◽  
Tomaz Goslar ◽  
...  
Keyword(s):  
Logistic Regression ◽  
Cardiac Arrest ◽  
Qt Dispersion ◽  
Spontaneous Circulation ◽  
Hospitalized Patients ◽  
Return Of Spontaneous Circulation ◽  
Qtc Dispersion ◽  
Pr Interval ◽  
Dispersion Measures ◽  
Hospital Cardiac Arrest

Background The incidence and mortality of out‐of‐hospital cardiac arrest (OHCA) remains high, but predicting outcomes is challenging. Being able to better assess prognosis of hospitalized patients after return of spontaneous circulation would enable improved management of survival expectations. In this study, we assessed the predictive value of ECG indexes in hospitalized patients with OHCA. Methods and Results PR interval and QT interval corrected by the Bazett formula (QTc) for all leads were calculated from standard 12‐lead ECGs 24 hours after return of spontaneous circulation in 93 patients who were hospitalized following OHCA. PR interval and QT and QTc duration did not differentiate OHCA survivors and nonsurvivors. However, QT and QTc dispersion was significantly increased in patients who died during hospitalization compared with survivors discharged from the hospital ( P <0.01). Logistic regression indicated a strong association between increased QT dispersion and in‐hospital mortality ( P <0.0001; area under the curve, 0.8918 for QT dispersion and 0.8673 for QTc dispersion). Multinomial logistic regression indicated that the increase of QTc dispersion correlated with worse Cerebral Performance Category scores at discharge ( P <0.001; likelihood ratio, 51.42). There was also significant correlation between dispersion measures and serum potassium at the time of measurement and between dispersion measures and cumulative epinephrine administration. No difference existed regarding the number of measurable leads. Conclusions Lesser QT and QTc dispersion at 24 hours after return of spontaneous circulation was significantly associated with survival and neurologic status at discharge. Routine evaluation of QT and QTc dispersion during hospitalization following return of spontaneous circulation might improve outcome prognostication for patients hospitalized for OHCA.

Abstract 19708: Pre-Hospital Initiation of Therapeutic Hypothermia Associated With Better Survival and Neurologic Outcome in a Broad Population of Patients in North Carolina

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Meena P Rao ◽  
Matthew Dupre ◽  
Carolina Hansen ◽  
Sarah Milford-Beland ◽  
Lisa Monk ◽  
...  
Keyword(s):  
North Carolina ◽  
Cardiac Arrest ◽  
Therapeutic Hypothermia ◽  
Spontaneous Circulation ◽  
Neurologic Outcome ◽  
Temperature Management ◽  
P Value ◽  
Return Of Spontaneous Circulation ◽  
Hospital Survival ◽  
Hospital Cardiac Arrest

Introduction: Out-of-hospital cardiac arrest (OHCA) has less than 10% hospital survival. While therapeutic hypothermia resulted in a 16%-24% improvement in neurologic outcome in patients with ventricular fibrillation (VF) in prior trials, recent trials have not shown benefit of pre-hospital initiation hypothermia or of hospital cooling to 33 vs 36 degrees. Methods: We studied patients who suffered OHCA in North Carolina from 2012-2013 captured in the CARES database as part of the Heart Rescue Project. To limit selection bias, we excluded patients without return of spontaneous circulation after arrest and without intubation in the field as they may have regained consciousness. Results: 847 patients were included in the analysis of pre-hospital hypothermia. The patients that received pre-hospital hypothermia had more bystander initiated CPR (p-value < 0.45). Pre-hospital hypothermia was associated with a significant increase in survival to hospital discharge (OR 1.55, 95% CI 1.03-2.32) and neurologic outcome at discharge (OR 1.56 95% CI 1.01-2.40). When looking at arrest types, the significant association was seen after VF arrest (figure). 537 patients survived to hospital admission and included in the analysis of in-hospital hypothermia. Patients who received hospital hypothermia were younger, had more VF, more witnessed arrest and more pre-hospital hypothermia. Hypothermia showed a non-significant trend toward better survival to discharge. Conclusions: The association between pre-hospital hypothermia after VF arrest and improved survival, in light of randomized data showing no effect, may be due to confounding or to a greater likelihood of in-hospital hypothermia in this group. The trend in better outcome using in-hospital hypothermia is consistent with a benefit from temperature management. These findings suggest the need for ongoing efforts to understand the value of hypothermia in context of other efforts to improve survival from cardiac arrest.

Abstract 312: Abnormal Computerized Tomography of the Brain Immediately After Return of Spontaneous Circulation is Not Associated With Death Following Out of Hospital Cardiac Arrest

Circulation ◽  
2018 ◽  
Vol 138 (Suppl_2) ◽  
Author(s):  
Paige Farley ◽  
Francis X Guyette ◽  
Adam Kessler ◽  
Adam Robinett ◽  
William Rushton ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Computerized Tomography ◽  
Imaging Modality ◽  
Spontaneous Circulation ◽  
Temperature Management ◽  
Return Of Spontaneous Circulation ◽  
Initial Rhythm ◽  
Ct Head ◽  
The Brain ◽  
Hospital Cardiac Arrest

Study Objectives: Many post-resuscitation programs routinely utilize immediate computerized tomography of the brain (CT head) following return of spontaneous circulation (ROSC) to inform initiation of targeted temperature management (TTM) for out-of-hospital cardiac arrest (OHCA). We sought to compare the association of abnormal immediate CT head with clinical outcome. Methods: Included were consecutive adults with non-traumatic OHCA treated from 2010 to 2018 by two comprehensive post-resuscitation programs. We combined comparable, prospective OHCA registries of clinical and demographic data at each site with a retrospective, structured chart review to abstract results of CT head performed prior to TTM initiation. Using multivariable logistic regression, we evaluated the association between abnormal immediate CT head and death adjusting for age, sex, race, witnessed arrest, shockable initial rhythm, and site. Results: Among 172 patients with OHCA, characteristics were median age 60 years (IQR 50-69), male 62.7%, African-American 52.3%, witnessed arrest 85.4%, and shockable initial rhythm 31.3%. CT Head in these subjects was abnormal in 27.9% of cases, specifically demonstrating hypoxic edema in 22.0%. In adjusted models, death was associated with greater age (adjusted OR 1.03 95% CI 1.01-1.06), non-shockable initial rhythm (adjusted OR 3.82 95% CI 1.64-8.95), and longer total time pulseless (adjusted OR 1.02 95% CI 1.01-1.06). In contrast, hypoxic edema or other abnormal CT head readings were not associated with death. Conclusion: In this dual-site pilot investigation abnormal findings on immediate CT head following ROSC were not associated with death. Caution should be used when utilizing this imaging modality to inform treatment decisions following OHCA.

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