scholarly journals In-hospital Death Following Successful OHCA Resuscitation: Causes of early and late mortality and the impact of withdrawal of care

2020 ◽  
Author(s):  
Shu Li ◽  
Christos Lazaridis ◽  
Fernando D. Goldenberg ◽  
Atman P. Shah ◽  
Katie Tataris ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Hospital Mortality ◽  
Human Study ◽  
Early Death ◽  
Organ Injury ◽  
Neurological Injury ◽  
Hospital Death ◽  
Categorization System ◽  
The Impact ◽  
Hospital Cardiac Arrest

AbstractObjectiveIn-hospital mortality in patients successfully resuscitated following out-of-hospital cardiac arrest (OHCA) is high. The factors and timings of these deaths is not well known. To better understand in hospital post-OHCA mortality we developed a novel categorization system of in hospital death and studied the factors and timings associated with these deaths.MethodsThis was a single-centered retrospective observational human study in adult non-traumatic OHCA patients in a university affiliated hospital. Through an expert consensus process, a novel classification system of hospital death was developed.ResultsTwo hundred and forty-one patients were enrolled in the study. Death was categorized as due to withdrawal of life sustaining treatment (WOLST) 159 (66.0%), recurrent in-hospital cardiac arrest 51 (21.1%), or due to neurological criteria 31 (12.9%). Subcategorization of factors associated with WOLST into 7 categories was done by defined criteria. Inter-reliability of this system was 0.858. 50% of WOLST decisions were due to neurological injury. Early death (≤ 3 days) was associated with recurrent in-hospital cardiac arrest and WOLST in the setting of refractory shock or multi-organ injury. Late in-hospital death (> 3 days) was primarily due to WOLST decisions in the setting of isolated neurological injury.ConclusionsOHCA in hospital mortality occurred in a bimodal pattern with early deaths due to recurrent arrest and multiorgan injury while late deaths were due to isolated neurological injury. The majority of deaths occurred in the setting of WOLST decisions. Further study of the influence of these factors on post OHCA survival are needed.

Abstract 341: Urine Output and Blood Urea Nitrogen Predict Mortality After Out-of-Hospital Cardiac Arrest

Circulation ◽  
2018 ◽  
Vol 138 (Suppl_2) ◽  
Author(s):  
Jacob C Jentzer ◽  
Bradley Ternus ◽  
Gregory W Barsness ◽  
Kianoush B Kashani
Keyword(s):  
Cardiac Arrest ◽  
Serum Creatinine ◽  
Hospital Mortality ◽  
Urine Output ◽  
Illness Severity ◽  
Wilcoxon Test ◽  
Temperature Management ◽  
Hospital Death ◽  
Increased Risk ◽  
Hospital Cardiac Arrest

Introduction: Renal dysfunction, as defined by elevated serum creatinine, is associated with decreased survival among patients resuscitated after out-of-hospital cardiac arrest (OHCA). Less is known about other measures of renal function and outcomes after OHCA. Hypothesis: BUN and urine output will predict mortality after OHCA. Methods: Retrospective single-center cohort study of 276 adult OHCA patients treated with targeted temperature management after OHCA between December 2005 and September 2016. Fluid balance and urine output were recorded for the first 6, 12 and 24 hours. Initial laboratory values were determined from electronic records. Hospital survivors and non-survivors were compared using the Wilcoxon test, and multivariate analysis was performed to determine predictors of hospital death. Results: Mean age was 63±12 years, and 204 (73%) were male; shockable rhythm occurred in 241 (87%). Inpatient death occurred in 111 (40%). Hospital survivors had lower initial BUN (13 vs. 20 mg/dL) and creatinine (1.1 vs. 1.5 mg/dL); all p <.001. Hospital survivors had higher (p <.001) urine output during the first 6 hours (1,091 vs. 559 ml), 12 hours (1,583 vs. 843 ml), and 24 hours (2,215 vs. 1,294 ml). Higher initial BUN (OR 1.12, 95% CI 1.07-1.18) and creatinine (OR 3.036, 95% CI 1.65-5.59) predicted hospital mortality; all p <.001. Urine output during the first 24 hours was associated with hospital mortality (OR 0.57 per each 1 L, 95% CI 0.45-0.72, p <.001; AUROC 0.73, optimal cut-off 1 L). Patients with 24-hour urine output <1 L were at increased risk of hospital death (66.3% vs. 26.0%, unadjusted OR 5.61, 95% CI 3.27-9.63, p <.001). Initial BUN (adjusted OR 1.09, 95% CI 1.01-1.16, p=.02) and urine output during the first 24 hours (adjusted OR 0.71 per each 1 L; 95% CI 0.52-0.97, p=.03) remained predictive of hospital mortality after adjustment for patient characteristics and illness severity. Conclusions: Lower 24-hour urine output and higher initial BUN were associated with higher hospital mortality among patients resuscitated from OHCA, even after adjustment for illness severity. Serum creatinine was not a significant predictor of mortality. This emphasizes the importance of low urine output as a prognostic marker and therapeutic target after OHCA.

Abstract 341: A Simple Prognostic Tool for In-Hospital Death in Patients Presenting with Out-of-Hospital Cardiac Arrest and ST-Elevation Myocardial Infarction

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_4) ◽  
Author(s):  
Andy T Tran ◽  
Anthony J Hart ◽  
John Spertus ◽  
Philip Jones ◽  
Ali O Malik ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Cardiac Arrest ◽  
Coronary Angiography ◽  
Hospital Mortality ◽  
Risk Score ◽  
Coronary Intervention ◽  
St Elevation Myocardial Infarction ◽  
Hospital Death ◽  
St Elevation ◽  
Hospital Cardiac Arrest

Background: In the emergent setting of ST-Elevation Myocardial Infarction (STEMI) complicating out-of-hospital cardiac arrest (OHCA), decisions for immediate coronary angiography are made when the likelihood of hospital survival is unknown. Estimating the risk of mortality at the time of hospital arrival might inform decisions for primary percutaneous coronary intervention. Methods: From the Cardiac Arrest Registry to Enhance Survival (CARES), we included adult OHCA patients from 2013-2018 presenting to hospitals with a STEMI. We developed a predictive model for in-hospital mortality using multivariable logistic regression to derive a scoring tool that was internally validated with bootstrap methods. Results: Of 7120 patients with OHCA and STEMI admitted at a hospital (mean age 62±13.2 years, 27% female), 3159 (44.4%) died during hospitalization. Higher age, unwitnessed arrest, non-shockable cardiac arrest rhythm, no sustained return of spontaneous circulation (ROSC) at the time of hospital admission, and resuscitation time on scene were most predictive of mortality (C-index, 0.82). Using the model β coefficients, we developed an integer risk score ranging from 0 to 10 points, corresponding to observed mortality rates of 5% to 100% (Figure 1). The odds of in-hospital mortality doubled for each 1-unit score increase (odds ratio, 2.01; 95% CI, 1.94-2.09; p<0.0001), and a score of ≥6, involving ~15% of patients, was associated with ≥85% in-hospital mortality risk. Conclusions: This risk score, based on simple prehospital characteristics, stratifies the range of in-hospital mortality from 5% to nearly 100% in OHCA patients with STEMI at the time of hospital presentation. The benefits of such a model in decision-making for immediate coronary angiography should be prospectively studied.

scholarly journals An observational study assessing the impact of a cardiac arrest centre on patient outcomes after out-of-hospital cardiac arrest (OHCA)

2020 ◽  
Vol 9 (4_suppl) ◽  
pp. S67-S73
Author(s):  
Matthew Kelham ◽  
Timothy N Jones ◽  
Krishnaraj S Rathod ◽  
Oliver Guttmann ◽  
Alastair Proudfoot ◽  
...  
Keyword(s):  
Acute Coronary Syndrome ◽  
Cardiac Arrest ◽  
Hospital Mortality ◽  
Coronary Intervention ◽  
Stepwise Logistic Regression ◽  
Coronary Syndrome ◽  
Before And After ◽  
The Impact ◽  
Hospital Cardiac Arrest ◽  
Baseline Demographic

Background: Out-of-hospital cardiac arrest (OHCA) is a major cause of death worldwide. Recent guidelines recommend the centralisation of OHCA services in cardiac arrest centres to improve outcomes. In 2015, two major tertiary cardiac centres in London merged to form a large dedicated tertiary cardiac centre. This study aimed to compare the short-term mortality of patients admitted with an OHCA before-and-after the merger of services had taken place and admission criteria were relaxed, which led to managing OHCA in higher volume. Methods: We retrospectively analysed the data of OHCA patients pre- and post-merger. Baseline demographic and medical characteristics were recorded, along with factors relating to the cardiac arrest. The primary endpoint was in-hospital mortality. Results: OHCA patients ( N =728; 267 pre- and 461 post-merger) between 2013 and 2018 were analysed. Patients admitted pre-merger were older (65.0 vs. 62.4 years, p=0.027), otherwise there were similar baseline demographic and peri-arrest characteristics. There was a greater proportion of non-acute coronary syndrome-related OHCA admission post-merger (10.1% vs. 23.4%, p=0.0001) and a corresponding decrease in those admitted with ST-elevation myocardial infarction (80.2% vs. 57.0%, p=0.0001) and those treated with percutaneous coronary intervention (78.8% vs. 54.0%, p=0.0001). Despite this, in-hospital mortality was lower post-merger (63.7% vs. 44.3%, p=0.0001), which persisted after adjustment for demographic and arrest-related characteristics using stepwise logistic regression ( p=0.036) between the groups. Conclusion: Despite an increase in non-acute coronary syndrome-related OHCA cases, the formation of a centralised invasive heart centre was associated with improved survival in OHCA patients. This suggests there may be a benefit of a cardiac arrest centre model of care.

P2665An observational study assessing the impact of a cardiac arrest centre on patient outcome

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
T N Jones ◽  
M D Kelham ◽  
K S Rathod ◽  
O Guttmann ◽  
A Proudfoot ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Hospital Mortality ◽  
The United States ◽  
Demographic Characteristics ◽  
Admission Criteria ◽  
Before And After ◽  
Cardiac Centre ◽  
The Impact ◽  
Hospital Cardiac Arrest ◽  
Baseline Demographic

Abstract Background Out-of-hospital cardiac arrest (OHCA) is a major cause of death in Europe and the United States. There has been recent literature to suggest that the centralisation of OHCA services may benefit patient outcomes. In 2015, two major tertiary cardiac centres in the UK agglomerated to form a large dedicated tertiary cardiac centre. The previous centre had strict criteria on which OHCA patients could be admitted, with the vast majority of cases being STEMI-related. After the agglomeration, admission criteria were relaxed to include all OHCA cases within geographic range with a suspected cardiac cause. Purpose This study aimed to compare the short-term mortality of patients admitted with an OHCA to a tertiary cardiac centre before-and-after a major agglomeration of services had taken place and admission criteria had been relaxed. Methods We retrospectively analysed the data of patients admitted before and after agglomeration (2015) with OHCA who were resuscitated via conventional cardiopulmonary resuscitation. Baseline demographic characteristics were recorded, along with factors relating to the cardiac arrest. Primary endpoint was in-hospital mortality. Results A total of 650 patients (189 before and 461 after the agglomeration) with an OHCA between 2013 and 2018 were analysed. Patients admitted pre merger were older (67.7 vs 62.4 years, p=0.022), otherwise there were similar baseline demographic characteristics between patients admitted before and after the agglomeration (pre vs post) in terms of gender (74.4% vs 75.9% male, p=0.827), ethnicity (66.7% vs 58.9% Caucasian, p=0.588) and existing coronary artery disease (22.8% vs 22.7%, p=0.432). There were also similar peri-arrest characteristics, with a comparable number of patients having a non-shockable rhythm (15.4% vs 25.4%, p=0.164) and similar total downtimes between the groups (33 vs 32.3 mins, p=0.883). Interestingly there was a decrease in those with cardiogenic shock on arrival (92.3% vs 57.0%, p=0.0001) and fewer patients with an ejection fraction <30% (63.2 vs 38.7%, p=0.0003) post-agglomeration. There was a greater proportion of non-ACS-related OHCA admission after the agglomeration (16.9% vs 24.1%, p=0.047) and a corresponding decrease in those admitted with a STEMI (81.5% vs 62.3%, p=0.032) and those treated with PCI (77.8% vs 54.0%, p=0.034). Despite this, in-hospital mortality was lower after the agglomeration (69.7% vs 47.1%, p=0.019), which persisted after adjustment for the previously described demographic and arrest-related characteristics using stepwise logistic regression (p=0.036) between the two groups. Conclusion Despite an increase in non-ACS-related-OHCA cases, the formation of a centralised invasive heart centre was associated with improved survival in OHCA patients. This suggests there may be a benefit for an out-of-hospital cardiac arrest-centre model of care, supporting a centralised strategy for immediate post-resuscitation care in OHCA patients. Acknowledgement/Funding None

Abstract 428: Cause of Death Among Patients Resuscitated From Out-Of-Hospital Cardiac Arrest at a Single Urban Academic Hospital

Circulation ◽  
2019 ◽  
Vol 140 (Suppl_2) ◽  
Author(s):  
Shu Li ◽  
Christos Lazaridis ◽  
Fernando D Goldenberg ◽  
Atman Shah ◽  
David Beiser ◽  
...  
Keyword(s):  
Emergency Department ◽  
Cardiac Arrest ◽  
Brain Death ◽  
Hospital Admission ◽  
Organ Failure ◽  
Hospital Discharge ◽  
Neurological Injury ◽  
Hospital Death ◽  
Academic Hospital ◽  
Hospital Cardiac Arrest

Background: Approximately 30% of patients resuscitated following Out of Hospital Cardiac Arrest (OHCA) survive to hospital admission, but only 10% of these patients survive to hospital discharge. Reasons for in hospital death of these patients is not well known or categorized. Understanding the principle reason for death among successfully resuscitated OHCA patients could guide the development of therapeutic and management strategies Methods: Using a retrospective OHCA cohort database at a single urban academic hospital, death of admitted adult OHCA patients from January 1, 2016 until June 30, 2019 was classified as primarily due to withdrawal of life-sustaining treatments (WOLST), in-hospital cardiac arrest, or formal declaration of death by neurologic criteria (brain death). Family/caregiver decisions to WOLST were categorized as occurring primarily in the setting of isolated severe neurological injury, multi-organ failure, in hospital cardiac arrest, severe hemodynamic shock, pre-existing comorbidities/terminal health condition, or prior unknown DNR status. Traumatic arrests were excluded. Results: During the study period there were 578 cardiac arrests brought to the emergency department; 291 (50%) patients survived to hospital admission. Of admitted patients, 95 patients (33%) survived to hospital discharge and 194 patients (67%) died. In non-surviving patients, death was attributable to WOLST (77%), brain death 25 (13%), in-hospital cardiac arrest (9%), and failure to achieve return of spontaneous circulation on ECMO 1 (1%). Decisions to WOLST by family members were complex and multi-factorial but were determined in the context of poor neurologic prognosis 93 (62%), multi-organ failure 27 (18%), in hospital cardiac arrest 11 (7%), severe shock 11 (7%), unknown prior DNR status 7 (5%), and pre-existing terminal illness 2 (1%). Conclusion: In this single center study, the majority of OHCA patients who survived to hospital admission from the emergency department subsequently died in the hospital due to the severity of their neurological injury in the context of WOLST. Death in the setting of multiorgan failure, re-arrest, or severe hemodynamic shock was less common.

scholarly journals The Impact of Hypoxic Hepatitis on Clinical Outcomes after Extracorporeal Cardiopulmonary Resuscitation

2020 ◽  
Vol 9 (9) ◽  
pp. 2994
Author(s):  
Yun Im Lee ◽  
Min Goo Kang ◽  
Ryoung-Eun Ko ◽  
Taek Kyu Park ◽  
Chi Ryang Chung ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Renal Replacement Therapy ◽  
Cardiopulmonary Resuscitation ◽  
Hospital Mortality ◽  
Continuous Renal Replacement Therapy ◽  
Replacement Therapy ◽  
Clinical Outcomes ◽  
Hypoxic Hepatitis ◽  
The Impact ◽  
Hospital Cardiac Arrest

Although there have been several reports regarding the association between hypoxic hepatic injury and clinical outcomes in patients who underwent conventional cardiopulmonary resuscitation (CPR), limited data are available in the setting of extracorporeal CPR (ECPR). Patients who received ECPR due to either in- or out-of-hospital cardiac arrest from May 2004 through December 2018 were eligible. Hypoxic hepatitis (HH) was defined as an increased aspartate aminotransferase or alanine aminotransferase level to more than 20 times the upper normal range. The primary outcome was in-hospital mortality. In addition, we assessed poor neurological outcome defined as a Cerebral Performance Categories score of 3 to 5 at discharge and the predictors of HH occurrence. Among 365 ECPR patients, 90 (24.7%) were identified as having HH. The in-hospital mortality and poor neurologic outcomes in the HH group were significantly higher than those of the non-HH group (72.2% vs. 54.9%, p = 0.004 and 77.8% vs. 63.6%, p = 0.013, respectively). As indicators of hepatic dysfunction, patients with hypoalbuminemia (albumin < 3 g/dL) or coagulopathy (international normalized ratio > 1.5) had significantly higher mortalities than those of their counterparts (p = 0.005 and p < 0.001, respectively). In multivariable logistic regression, age and acute kidney injury requiring continuous renal replacement therapy were predictors for development of HH (p = 0.046 and p < 0.001 respectively). Furthermore age, arrest due to ischemic heart disease, initial shockable rhythm, out-of-hospital cardiac arrest, lowflow time, continuous renal replacement therapy, and HH were significant predictors for in-hospital mortality. HH was a frequent complication and associated with poor clinical outcomes in ECPR patients.

Abstract 315: Community Characteristics Associated With Out of Hospital Cardiac Arrest Mortality: The Intersection of Urbanicity, Poverty, and Race

Circulation ◽  
2019 ◽  
Vol 140 (Suppl_2) ◽  
Author(s):  
John Barbe ◽  
David F Gaieski ◽  
Alexis M Zebrowski ◽  
David G Buckler ◽  
Marissa N Lang ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Hospital Mortality ◽  
Urban Areas ◽  
Census Data ◽  
Community Characteristics ◽  
Suburban Communities ◽  
County Poverty ◽  
Black Populations ◽  
The Impact ◽  
Hospital Cardiac Arrest

Introduction: Variation in survival for out-of-hospital cardiac arrest (OHCA) has been described, but the intersection of urbanicity, race, and poverty and the impact on OHCA outcomes remains unclear. We sought to test whether rurality was associated with increased in-hospital mortality compared to urban and suburban communities when accounting for differences in poverty and race. Methods: We performed a retrospective analysis using 2013-2014 Medicare claims for inpatient stays originating in the emergency department. OHCA Patients (≥65 years) were identified by ICD-9-CM diagnosis code. Urbanicity was assigned based on county of residence using Rural-Urban Continuum Codes. Census data were used for county poverty and racial composition measures. Multivariate logistic regression was used to estimate the association of in-hospital mortality with urbanicity, percent of resident population in poverty, and percent black residency. Also included were individual, hospital, and community characteristics. Results: A total of 246,736 OHCA cases were identified of which 53% were male, 23% non-white, and 36% >75 years. Survival to discharge was 22%. Over 95% of OHCA patients resided in urban (85%) or suburban (11%) areas. Predicted probabilities of death (Figure) were lowest in suburban communities with moderate poverty and small black populations (0.76, CI 0.75-0.76) and highest in urban areas with moderate poverty and larger black populations (0.80, CI 0.80-0.81). All areas with high poverty and larger black populations had similar predicted probabilities (0.77-0.78), regardless of urbanicity. Conclusions: Suburban residence was associated with lower odds of mortality, even in communities with high levels of poverty. Communities with moderate poverty showed the greatest spread of outcomes in all 3 urbanicity categories. Further work should explore access to care, social determinants of health, and hospital factors that lead to the observed disparities.

scholarly journals Air pollution and out-of-hospital cardiac arrest risk

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
L Moderato ◽  
D Lazzeroni ◽  
A Biagi ◽  
T Spezzano ◽  
B Matrone ◽  
...  
Keyword(s):  
Air Pollution ◽  
Cardiac Arrest ◽  
Ambient Air ◽  
Ambient Air Pollution ◽  
External Temperature ◽  
Pm 2.5 ◽  
Pm10 And Pm2.5 ◽  
Short Term Exposure ◽  
The Impact ◽  
Hospital Cardiac Arrest

Abstract Introduction Out-of-hospital cardiac arrest (OHCA) is a leading cause of death worldwide; it accounts for up to 50% of all cardiovascular deaths.It is well established that ambient air pollution triggers fatal and non-fatal cardiovascular events. However, the impact of air pollution on OHCA is still controversial. The objective of this study was to investigate the impact of short-term exposure to outdoor air pollutants on the incidence of OHCA in the urban area of Piacenza, Italy, one of the most polluted area in Europe. Methods From 01/01/2010 to 31/12/2017 day-by-day PM10 and PM2.5 levels, as well as climatic data, were extracted from Environmental Protection Agency (ARPA) local monitoring stations. OHCA were extracted from the prospective registry of Community-based automated external defibrillator Cardiac arrest “Progetto Vita”. OHCA data were included: audio recordings, event information and ECG tracings. Logistic regression analysis was used to estimate the association between the risk of OHC, expressed as odds ratios (OR), associated with the PM10 and PM2.5 levels. Results Mean PM10 levels were 33±29 μg/m3 and the safety threshold (50 μg/m3) recommended by both WHO and Italian legislation has been exceeded for 535 days (17.5%). Mean PM 5 levels were 33±29 μg/m3. During the follow-up period, 880 OHCA were recorded on 750 days; the remaining 2174 days without OHCA were used as control days. Mean age of OHCA patients was 76±15 years; male gender was prevalent (55% male vs 45% female; &lt;0.001). Concentration of PM10 and PM 2.5 were significantly higher on days with the occurrence of OHCA (PM10 levels: 37.7±22 μg/m3 vs 32.7±19 μg/m3; p&lt;0.001; PM 2.5 levels: 26±16 vs 22±15 p&lt;0.001). Risk of OHCA was significantly increased with the progressive increase of PM10 (OR: 1.009, 95% CI 1.004–1.015; p&lt;0.001) and PM2.5 levels (OR 1.012, 95% CI 1.007–1.017; p&lt;0.001). Interestingly, the above mentioned results remain independent even when correct for external temperature or season (PM 2.5 levels: p=0.01 – PM 10 levels: p=0.002), Moreover, dividing PM10 values in quintiles, a 1.9 fold higher risk of cardiac arrest has been showed in the highest quintile (Highest quintile cut-off: &lt;48μg/m3) Conclusions In large cohort of patients from a high pollution area, both PM10 and PM2.5 levels are associated with the risk of Out-of-hospital cardiac arrest. PM10 and PM2.5 levels and risk of OHCA Funding Acknowledgement Type of funding source: None

In-hospital mortality after out-of-hospital cardiac arrest

The Lancet ◽  
1995 ◽  
Vol 346 (8972) ◽  
pp. 417-421 ◽  
Author(s):  
N.R Grubb ◽  
K.A.A Fox ◽  
R.A Elton
Keyword(s):  
Cardiac Arrest ◽  
Hospital Mortality ◽  
Hospital Cardiac Arrest

Abstract 11372: A Risk-Adjustment Model for Patients Presenting to Hospitals with Out-of-Hospital Cardiac Arrest and ST-Elevation Myocardial Infarction

Circulation ◽  
2021 ◽  
Vol 144 (Suppl_2) ◽  
Author(s):  
Andy T Tran ◽  
Anthony Hart ◽  
John Spertus ◽  
Philip Jones ◽  
Bryan McNally ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Hospital Mortality ◽  
Risk Adjustment ◽  
Quality Measures ◽  
Coronary Intervention ◽  
Spontaneous Circulation ◽  
Logistic Regression Models ◽  
Adjustment Model ◽  
Risk Adjustment Model ◽  
Hospital Cardiac Arrest

Background: Given the diversity of patients resuscitated from out-of-hospital cardiac arrest (OHCA) complicated by STEMI, adequate risk adjustment is needed to account for potential differences in case-mix to reflect the quality of percutaneous coronary intervention. Objectives: We sought to build a risk-adjustment model of in-hospital mortality outcomes for patients with OHCA and STEMI requiring emergent angiography. Methods: Within the Cardiac Arrest Registry to Enhance Survival, we included adult patients with OHCA and STEMI who underwent angiography within 2 hours from January 2013 to December 2019. Using pre-hospital patient and arrest characteristics, multivariable logistic regression models were developed for in-hospital mortality. We then described model calibration, discrimination, and variability in patients’ unadjusted and adjusted mortality rates. Results: Of 2,999 hospitalized patients with OHCA and STEMI who underwent emergent angiography (mean age 61.2 ±12.0, 23.1% female, 64.6% white), 996 (33.2%) died. The final risk-adjustment model for mortality included higher age, unwitnessed arrest, non-shockable rhythms, not having sustained return of spontaneous circulation upon hospital arrival, and higher total resuscitation time on scene ( C -statistic, 0.804 with excellent calibration). The risk-adjusted proportion of patients died varied substantially and ranged from 7.8% at the 10 th percentile to 74.5% at the 90 th percentile (Figure). Conclusions: Through leveraging data from a large, multi-site registry of OHCA patients, we identified several key factors for better risk-adjustment for mortality-based quality measures. We found that STEMI patients with OHCA have highly variable mortality risk and should not be considered as a single category in public reporting. These findings can lay the foundation to build quality measures to further optimize care for the patient with OHCA and STEMI.

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