Cardiology Commons^™

Conference Proceedings: Aurora Scientific Day 2020

Journal of Patient-Centered Research and Reviews

Abstracts published in this supplement were among those presented at the 46th annual Aurora Scientific Day research symposium, held virtually on May 20, 2020. The symposium provides a forum for describing research studies conducted by faculty, fellows, residents, and allied health professionals affiliated with Wisconsin-based Aurora Health Care, a part of the Advocate Aurora Health health system, which publishes the Journal of Patient-Centered Research and Reviews.

Concurrent Primary Cardiac Tumors In A High Risk Patient Presenting With Tamponade, Joseph B. Zackary Md, Lauren Crowley Ba, Shawn M. Quinn Do, Timothy S. Misselbeck

Department of Emergency Medicine

No abstract provided.

Practice Gap In Atrial Fibrillation Oral Anticoagulation Prescribing At Emergency Department Home Discharge, Bory Kea, Bethany T. Waites, Amber Lynn, Merritt H. Raitt, David R. Vinson, Niroj Ari, Luke Welle, Andrew Sill, Dana Button, Benjamin C. Sun

OHSU-PSU School of Public Health Faculty Publications and Presentations

Introduction: Current U.S. cardiology guidelines recommend oral anticoagulation (OAC) to reduce stroke risk in selected patients with atrial fibrillation (AF), but no formal AF OAC recommendations exist to guide emergency medicine clinicians in the acute care setting. We sought to characterize emergency department (ED) OAC prescribing practices after an ED AF diagnosis.

Methods: This retrospective study included index visits for OAC-naive patients ≥18 years old who were discharged home from the ED at an urban, academic, tertiary hospital with a primary diagnosis of AF from 2012-2014. Five hypothesis-blinded, chart reviewers abstracted data from patient problem lists and medical history in …

Multi-Community Cardiopulmonary Resuscitation Education By Medical Students, Kenton L Anderson, Kian Niknam, Larry Laufman, Stefanie S Sebok-Syer, Sara Andrabi

Faculty, Staff and Students Publications

Introduction One purpose of the hands-only cardiopulmonary resuscitation (HOCPR) program is to simplify CPR instruction to encourage more bystanders to take action during cardiac arrest. Although the program has been successfully implemented in traditional classroom settings, the utility of large-scale training events has not been well-explored. We hypothesized that CPR knowledge and comfort levels would increase through a large-scale, multi-community HOCPR training event. We also explored what effect this training event had on perceived barriers to bystander-performed CPR. Methods A convenience sample participated in HOCPR training on a single day across 10 Texas cities. A sub-sample completed training questionnaires, including …

Bedside Point Of Care Ultrasound Diagnosing Bilateral Valve Involvement In Infective Endocarditis, Corey Cole, Alfredo Tirado, Jonathan Schwadron

West Florida Division GME Research Day 2020

Endocarditis is a well known complication of intravenous drug abuse which classically affects the tricuspid valve. It is usually diagnosed by formal echocardiogram and positive blood cultures. Vegetations involving both the mitral and tricuspid valves are rare, occurring in less than 5% of all cases of infective endocarditis. 1 Here we report a case of a patient with vegetations on both valves which was discovered by point of care ultrasound.

End The Glow!, Roli Kushwaha, Anthony Furiato, Justin Mcnamee

West Florida Division GME Research Day 2020

Aortic dissection (AD) is part of a group of acute aortic syndromes consisting of intramural aortic hematoma, penetrating aortic ulcer, and aortic rupture. On its own, the incidence is ~3 to 8 cases per 100,000 per year, and up to 25% of cases are missed. The in-hospital mortality when treated is 27%, and with a 2% increase in mortality/hour. Imaging modalities like CT angiography, TEE, and MRA have made improved diagnosis of the disease, but are costly, potentially harmful, time consuming, and require patient stability when in use (1). The key question we have as emergency department providers is if …

Evolving De Winter Presentation Of Acute Myocardial Infarction, Caroline Shepherd, Anthony Furiato

West Florida Division GME Research Day 2020

de Winter ECG pattern first detailed in 2008 in a case series Diagnostic criteria

• Tall, prominent, symmetric T waves in the precordial leads
• Upsloping ST segment depression >1mm at the J-point in the precordial leads
• Absence of ST elevation in the precordial leads
• ST segment elevation (0.5mm-1mm) in aVR

Strongly correlated with acute LAD occlusion

A Case Of Blunt Trauma-Induced St-Elevation Myocardial Infarction Sustained During A Prison Brawl., Zachary T Clark, Natalie Thiel, John Perry, Michael R Minckler

Articles, Abstracts, and Reports

Myocardial infarction (MI) is a serious and time-sensitive condition. MIs are typically seen in patients with coronary artery disease (CAD) and are caused by the rupture of an atherosclerotic plaque due to factors contributing to plaque instability. However, this case illustrates that plaque rupture can also be caused by blunt trauma to the chest. Considering MI as a possible result of chest trauma may decrease time from presentation to diagnosis and treatment and, therefore, improve outcomes in similar cases, particularly when patients presents unusually or with very few risk factors for MI.

Process Factors Affecting Reperfusion Time In Patients Presenting With St-Segment Elevation Myocardial Infarction (Stemi), Richard R. Wall

Theses and Dissertations

Abstract PROCESS FACTORS AFFECTING REPERFUSION TIME IN PATIENTS

PRESENTING WITH ST-SEGMENT ELEVATION MYOCARDIAL INFARCTION (STEMI) By Richard R. Wall MSRS, RT(R)(CT)(CI), RCIS

A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy at Virginia Commonwealth University.

Virginia Commonwealth University, 2020.

Dissertation Chair: Jeffrey S. Legg Ph.D. Associate Professor and Chair, Department of Radiation Sciences

An ST-segment myocardial infarction (STEMI) occurs when the blood flow to the myocardium is suddenly and completely blocked causing the myocardium to become ischemic. A STEMI is a life-threatening condition that necessitates emergent medical treatment. Research has shown that longer …

Results Of A Phase 1 Multicentre Investigation Of Dexmedetomidine Bolus And Infusion In Corrective Infant Cardiac Surgery, Athena F Zuppa, Susan C Nicolson, Nicole S Wilder, Juan C Ibla, Erin A Gottlieb, Kristin M Burns, Mario Stylianou, Felicia Trachtenberg, Hua Ni, Tera H Skeen, Dean B Andropoulos

Faculty, Staff and Students Publications

BACKGROUND: Dexmedetomidine (DEX) is increasingly used intraoperatively in infants undergoing cardiac surgery. This phase 1 multicentre study sought to: (i) determine the safety of DEX for cardiac surgery with cardiopulmonary bypass; (ii) determine the pharmacokinetics (PK) of DEX; (iii) create a PK model and dosing for steady-state DEX plasma levels; and (iv) validate the PK model and dosing.

METHODS: We included 122 neonates and infants (0-180 days) with D-transposition of the great arteries, ventricular septal defect, or tetralogy of Fallot. Dose escalation was used to generate NONMEM® PK modelling, and then validation was performed to achieve low (200-300 pg ml …

A Paramedic Staffed Prehospital Program May Reduce Hospital Readmissions For Heart Failure, Bruce Feldman Do, Christopher J. Greb Nrp, Orlando E. Rivera Rn, Mahek Shah Md, Jennifer Nesfeder, Deborah W. Sundlof Do, Nael Hawwa Md, Alma N. Ohl Crnp, Tara K. Henry-Morrow Emt-P, Jeanne L. Jacoby Md

Department of Emergency Medicine

No abstract provided.

A Case Of An Acutely Ill Adult Athlete With Previously Undiagnosed Hypertrophic Obstructive Cardiomyopathy., Michael R Minckler, Madeleine Maker

Articles, Abstracts, and Reports

Hypertrophic obstructive cardiomyopathy (HOCM) is a genetic condition most commonly characterized by hypertrophy of the ventricular septum, which leads to left ventricle outflow obstruction. Due to the severity of the condition, it is often diagnosed in adolescents, especially in those who exercise. We describe the case of a 53-year-old male, previously undiagnosed with hypertrophic cardiomyopathy (HCM), who became dyspneic during a bike race. He was found to have elevated troponin, pulmonary edema, and was diagnosed with HOCM. The late presentation of the case, in an active individual, makes the situation unique.

Patients With Refractory Out-Of-Cardiac Arrest And Sustained Ventricular Fibrillation As Candidates For Extracorporeal Cardiopulmonary Resuscitation - Prospective Multi-Center Observational Study., Takahiro Nakashima, Teruo Noguchi, Yoshio Tahara, Kunihiro Nishimura, Soshiro Ogata, Satoshi Yasuda, Daisuke Onozuka, Naoto Morimura, Ken Nagao, David F. Gaieski, Yasufumi Asai, Hiroyuki Yokota, Satoshi Nara, Mamoru Hase, Takahiro Atsumi, Tetsuya Sakamoto

Department of Emergency Medicine Faculty Papers

BACKGROUND: We investigated whether patients with out-of-hospital cardiac arrest (OHCA) and sustained ventricular fibrillation/pulseless ventricular tachycardia (VF/pVT) or conversion to pulseless electrical activity/asystole (PEA/asystole) benefit more from extracorporeal cardiopulmonary resuscitation (ECPR). Methods and Results: We analyzed data from the Study of Advanced Life Support for Ventricular Fibrillation with Extracorporeal Circulation in Japan, which was a prospective, multicenter, observational study with 22 institutions in the ECPR group and 17 institutions in the conventional CPR (CCPR) group. Patients were divided into 4 groups by cardiac rhythm and CPR group. The primary endpoint was favorable neurological outcome, defined as Cerebral Performance Category 1 …

Coronary Angiography After Cardiac Arrest - The Right Timing Or The Right Patients?, Benjamin S. Abella, David F. Gaieski

Department of Emergency Medicine Faculty Papers

No abstract provided.

Bevacizumab: A Rare Cause Of Nonischemic Cardiomyopathy., Oreoluwa Oladiran, Salik Nazir

Reading Hospital Internal Medicine Residency

Left ventricular dysfunction is a rare side effect of bevacizumab occurring in 2-4% of cases. We report the case of a 68-year-old woman who presented to the emergency department (ED) with sudden onset of shortness of breath, orthopnea, and paroxysmal nocturnal dyspnea. She was tachypneic and in respiratory distress. Physical examination revealed jugular venous distention, diffuse expiratory wheeze, and bipedal edema. She had been started on bevacizumab for the treatment of hereditary hemorrhagic telangiectasia 1 month prior to presentation. Laboratory tests revealed BNP of 1697 pg/ml with slightly elevated troponin 0.05 ng/ml. Chest X-ray showed interstitial edema with cardiomegaly, and …

Myocardial Dysfunction After Out-Of-Hospital Cardiac Arrest: Predictors And Prognostic Implications., Yuan Yao, Nicholas James Johnson, Sarah Muirhead Perman, Vimal Ramjee, Anne Victoria Grossestreuer, David Foster Gaieski

Department of Emergency Medicine Faculty Papers

We aim to determine the incidence of early myocardial dysfunction after out-of-hospital cardiac arrest, risk factors associated with its development, and association with outcome. A retrospective chart review was performed among consecutive out-of-hospital cardiac arrest (OHCA) patients who underwent echocardiography within 24 h of return of spontaneous circulation at three urban teaching hospitals. Our primary outcome is early myocardial dysfunction, defined as a left ventricular ejection fraction < 40% on initial echocardiogram. We also determine risk factors associated with myocardial dysfunction using multivariate analysis, and examine its association with survival and neurologic outcome. A total of 190 patients achieved ROSC and underwent echocardiography within 24 h. Of these, 83 (44%) patients had myocardial dysfunction. A total of 37 (45%) patients with myocardial dysfunction survived to discharge, 39% with intact neurologic status. History of congestive heart failure (OR 6.21; 95% CI 2.54-15.19), male gender (OR 2.27; 95% CI 1.08-4.78), witnessed arrest (OR 4.20; 95% CI 1.78-9.93), more than three doses of epinephrine (OR 6.10; 95% CI 1.12-33.14), more than four defibrillations (OR 4.7; 95% CI 1.35-16.43), longer duration of resuscitation (OR 1.06; 95% CI 1.01-1.10), and therapeutic hypothermia (OR 3.93; 95% CI 1.32-11.75) were associated with myocardial dysfunction. Cardiopulmonary resuscitation immediately initiated by healthcare personnel was associated with lower odds of myocardial dysfunction (OR 0.40; 95% CI 0.17-0.97). There was no association between early myocardial dysfunction and mortality or neurological outcome. Nearly half of OHCA patients have myocardial dysfunction. A number of clinical factors are associated with myocardial dysfunction, and may aid providers in anticipating which patients need early diagnostic evaluation and specific treatments. Early myocardial dysfunction is not associated with neurologically intact survival.

Variability Of Extracorporeal Cardiopulmonary Resuscitation Utilization For Refractory Adult Out-Of-Hospital Cardiac Arrest: An International Survey Study., Patrick J. Coppler, Benjamin S. Abella, Clifton W. Callaway, Minjung Kathy Chae, Seung Pill Choi, Jonathan Elmer, Won Young Kim, Young-Min Kim, Michael Kurz, Joo Suk Oh, Joshua C. Reynolds, Jon C. Rittenberger, Kelly N. Sawyer, Chun Song Youn, Byung Kook Lee, David F. Gaieski

Department of Emergency Medicine Faculty Papers

Objective: A growing interest in extracorporeal cardiopulmonary resuscitation (ECPR) as a rescue strategy for refractory adult out-of-hospital cardiac arrest (OHCA) currently exists. This study aims to determine current standards of care and practice variation for ECPR patients in the USA and Korea.

Methods: In December 2015, we surveyed centers from the Korean Hypothermia Network (KORHN) Investigators and the US National Post-Arrest Research Consortium (NPARC) on current targeted temperature management and ECPR practices. This project analyzes the subsection of questions addressing ECPR practices. We summarized survey.

Results: Overall, 9 KORHN and 4 NPARC centers reported having ECPR programs and had complete …

Validation Of An Icd Code For Accurately Identifying Emergency Department Patients Who Suffer An Out-Of-Hospital Cardiac Arrest., Shelby K. Shelton, Steve B. Chukwulebe, David F. Gaieski, Benjamin S. Abella, Brendan G. Carr, Sarah M. Perman

Department of Emergency Medicine Faculty Papers

AIM: International classification of disease (ICD-9) code 427.5 (cardiac arrest) is utilized to identify cohorts of patients who suffer out-of-hospital cardiac arrest (OHCA), though the use of ICD codes for this purpose has never been formally validated. We sought to validate the utility of ICD-9 code 427.5 by identifying patients admitted from the emergency department (ED) after OHCA.

METHODS: Adult visits to a single ED between January 2007 and July 2012 were retrospectively examined and a keyword search of the electronic medical record (EMR) was used to identify patients. Cardiac arrest was confirmed; and ICD-9 information and location of return …

Triple Valve Infective Endocarditis - A Late Diagnosis, Edme R. Mustafa, Sineta C. Firulescu, Cristina D. Parvanescu, Beatrice A. Chisalau, Georgica C. Tartea, Ion C. Efrem, Andreea L. Barbulescu, Stefan C. Dinescu, Paulina L. Ciurea, Lucretiu Radu, Ananu F. Vreju

Journal of Mind and Medical Sciences

Behcet's disease is a systemic vasculitis of unknown aetiology with cardiac involvement as well as damage to other organs. Whether the sterile valvular inflammation which occurs in this autoimmune disease predisposes to bacterial adhesion and infective endocarditis is not yet established.

We present the case of a patient with Behcet disease in which transthoracic echocardiography showed mobile masses on the aortic, tricuspid, and mitral valves, leading to multivalvular infective endocarditis diagnosis, possibly in the context of valvular inflammation.

The case presented in this article confirms observation of other studies, namely that ultrasonography plays an important role in the diagnosis and …

Optimal Scene Time To Achieve Favorable Outcomes In Out-Of-Hospital Cardiac Arrest: How Long Is Too Long?, Glenn Goodwin, Dyana Picache, Brian J. Louie, Nicholas Gaeto, Tarik Zeid, Paxton P. Aung, Sonu Sahni

Touro College of Osteopathic Medicine (New York) Publications and Research

Despite advances in resuscitation science and public health, out-of-hospital cardiac arrest (OOHCA) cases have an average survival rate of only 12% nationwide, compared to 24.8% of cases occurring in hospital. Many factors, including resuscitation interventions, contribute to positive patient outcomes and have, therefore, been studied in attempts to optimize emergency medical services (EMS) protocols to achieve higher rates of return of spontaneous circulation (ROSC) in the field. However, no consensus has been met regarding the appropriate amount of time for EMS to spend on scene.

Emergency Department Repair Of Blunt Right Atrial Rupture Utilizing Cardiopulmonary Bypass, Samuel P. Carmichael, Michael C. Bounds, Alexis E. Shafii, Phillip K. Chang

Internal Medicine Faculty Publications

Blunt cardiac injury (BCI) with free wall rupture carries a high risk of pre-hospital death. Cardiopulmonary bypass (CPB) has been utilized as a bridge to repair of cardiac lesions in select patients. We present an interesting case of emergency department repair of right atrial rupture with cardiopulmonary bypass.

Cardiac Arrest Risk Standardization Using Administrative Data Compared To Registry Data., Anne V. Grossestreuer, David F. Gaieski, Michael W. Donnino, Joshua I.M. Nelson, Eric L. Mutter, Brendan G. Carr, Benjamin S. Abella, Douglas J. Wiebe

Department of Emergency Medicine Faculty Papers

BACKGROUND: Methods for comparing hospitals regarding cardiac arrest (CA) outcomes, vital for improving resuscitation performance, rely on data collected by cardiac arrest registries. However, most CA patients are treated at hospitals that do not participate in such registries. This study aimed to determine whether CA risk standardization modeling based on administrative data could perform as well as that based on registry data.

METHODS AND RESULTS: Two risk standardization logistic regression models were developed using 2453 patients treated from 2000-2015 at three hospitals in an academic health system. Registry and administrative data were accessed for all patients. The outcome was death …

Diagnostic Effectiveness Of High-Sensitivity Troponins, Sean R. Bodin, Jacqueline Ramirez

Physician Assistant Capstones, 2016 to 2019

Background: Acute myocardial infarctions (AMI) are a leading cause of death in the United States. The key to increasing survivability is early recognition to expedite the proper treatment modalities. In conjunction with the clinical presentation and electrocardiograms, the use of cardiac biomarkers is exponentially important in not only recognizing a cardiac event but also determining the extent of injury. Advancement in laboratory technology has led to the development of high-sensitive troponin (hs-troponin) assays which can detect smaller cardiac troponin serum levels compared to conventional troponin assays. This implies that the use of hs-troponin assays is more effective in the …

Application Of D-Dimer To Aid In Diagnosis Of Acute Aortic Dissection, Hannah Scarboro, Julia Starkey

Physician Assistant Capstones, 2016 to 2019

Introduction: Acute aortic dissection (AAD) is an emergent, relatively uncommon condition that typically presents with sudden onset severe chest or back pain.1 Advanced imaging, such as computerized tomography, is currently the gold standard to diagnose AAD; this can be expensive and unavailable at all health care centers. D-dimer is a blood test that has been shown in recent studies to be elevated in acute aortic dissection. This may be a more cost-effective way to help the clinician “rule-out” an acute aortic dissection.1

Objective: The purpose of this research was to determine if there is significant data regarding the sensitivity and …

An Echocardiography Training Program For Improving The Left Ventricular Function Interpretation In Emergency Department; A Brief Report, Mary Jacob, Hamid A. Shokoohi, Fabith Moideen, Amelia Pousson, Keith S. Boniface

Emergency Medicine Faculty Publications

Introduction: Focused training in transthoracic echocardiography enables emergency physicians (EPs) to accurately estimate the left ventricular function. This study aimed to evaluate the efficacy of a brief training program utilizing standardized echocardiography video clips in this regard.
Methods: A before and after design was used to determine the efficacy of a 1 hour echocardiography training program using PowerPoint presentation and standardized echocardiography video clips illustrating normal and abnormal left ventricular ejection fraction (LVEF) as well as video clips emphasizing the measurement of mitral valve E-point septal separation (EPSS). Pre- and post-test evaluation used unique video clips and asked trainees to …

Shared Decision Making In Patients With Low Risk Chest Pain: Prospective Randomized Pragmatic Trial., Erik P. Hess, Judd E. Hollander, Jason T. Schaffer, Jeffrey A. Kline, Carlos A. Torres, Deborah B. Diercks, Russell Jones, Kelly P. Owen, Zachary F. Meisel, Michel Demers, Annie Leblanc, Nilay D. Shah, Jonathan Inselman, Jeph Herrin, Ana Castaneda-Guarderas, Victor M. Montori

Department of Emergency Medicine Faculty Papers

OBJECTIVE: To compare the effectiveness of shared decision making with usual care in choice of admission for observation and further cardiac testing or for referral for outpatient evaluation in patients with possible acute coronary syndrome.

DESIGN: Multicenter pragmatic parallel randomized controlled trial.

SETTING: Six emergency departments in the United States.

PARTICIPANTS: 898 adults (aged >17 years) with a primary complaint of chest pain who were being considered for admission to an observation unit for cardiac testing (451 were allocated to the decision aid and 447 to usual care), and 361 emergency clinicians (emergency physicians, nurse practitioners, and physician assistants) caring …

The Association Between Hemoglobin Concentration And Neurologic Outcome After Cardiac Arrest., Nicholas J. Johnson, Babette Rosselot, Sarah M. Perman, Kalani Dodampahala, Munish Goyal, David F. Gaieski, Anne V. Grossestreuer

Department of Emergency Medicine Faculty Papers

PURPOSE: The purpose of the study is to determine the association between hemoglobin concentration (Hgb) and neurologic outcome in postarrest patients.

METHODS: We conducted a retrospective cohort study using the Penn Alliance for Therapeutic Hypothermia (PATH) cardiac arrest registry. Inclusion criteria were resuscitated cardiac arrest (inhospital or out of hospital) and an Hgb value recorded within 24 hours of return of spontaneous circulation. The primary outcome was favorable neurologic status at hospital discharge. Survival to hospital discharge was a secondary outcome.

RESULTS: There were 598 eligible patients from 21 hospitals. Patients with favorable neurologic outcome had significantly higher median Hgb …

Biventricular Thrombus In Hypereosinophilic Syndrome Presenting With Shortness Of Breath, Abdul Baqi, Shahan Waheed, Fateh Ali Tipoo Sultan, Aamir Hameed

Section of Cardiology

A 48 years old male presented to clinic with 12 months of low grade fever with shortness of breath which has progressively worsened with no associated weight loss, night sweats or loss of appetite. There was no prior history of chronic illness before the current illness. Laboratory workup revealed a high white blood cell count with predominant eosinophils. Chest X-ray was normal. Transthoracic echocardiography and Cardiac Magnetic Resonance showed biventricular thrombi. On further extensive workup the findings were consistent with hypereosinophilic syndrome. The patient was started on oral steroids, hydroxyurea, imatanib mesylate and oral anticoagulation. The patient responded to the …

The Relationship Between Aldosterone And Left Ventricular Hypertrophy In Hypertensive Patients, Tahsin M. Rahman, Phillip Levy, Aaron M. Brody

Honors College Theses

Background - Aldosterone is a pertinent hormone in naturally elevating blood pressure within the body by increasing fluid retention in the body via electrolyte reabsorption in the kidneys. Consequently, aldosterone can have an indirect effect on the incidence of LVH considering the hormone can reinforce high blood pressure. However, recent studies have suggested that aldosterone and the renin-angiotensin-aldosterone-system (RAAS) may have a direct role in leading to an increase in left ventricular mass. Patients with hyperaldosteronism, otherwise elevated circulating aldosterone, have shown high frequencies of LVH regardless of the presence of hypertension. Furthermore, cardiomyocytes have been seen to contain mineralocorticoid …

Right Ventricular Dysfunction After Resuscitation Predicts Poor Outcomes In Cardiac Arrest Patients Independent Of Left Ventricular Function., Vimal Ramjee, Anne V. Grossestreuer, Yuan Yao, Sarah M. Perman, Marion Leary, James N. Kirkpatrick, Paul R. Forfia, Daniel M. Kolansky, Benjamin S. Abella, David F. Gaieski

Department of Emergency Medicine Faculty Papers

OBJECTIVE: Determination of clinical outcomes following resuscitation from cardiac arrest remains elusive in the immediate post-arrest period. Echocardiographic assessment shortly after resuscitation has largely focused on left ventricular (LV) function. We aimed to determine whether post-arrest right ventricular (RV) dysfunction predicts worse survival and poor neurologic outcome in cardiac arrest patients, independent of LV dysfunction.

METHODS: A single-center, retrospective cohort study at a tertiary care university hospital participating in the Penn Alliance for Therapeutic Hypothermia (PATH) Registry between 2000 and 2012.

PATIENTS: 291 in- and out-of-hospital adult cardiac arrest patients at the University of Pennsylvania who had return of spontaneous …