A5066665433- Cardiac Arrest and Resuscitation
- Cardiac electrophysiology and arrhythmias
- Mechanical Circulatory Support Devices
- Trauma and Emergency Care Studies
- Cardiac Ischemia and Reperfusion
- Heart Rate Variability and Autonomic Control
- Disaster Response and Management
- Acute Myocardial Infarction Research
- Trauma Management and Diagnosis
- Emergency and Acute Care Studies
- Cardiac Arrhythmias and Treatments
- Traumatic Brain Injury and Neurovascular Disturbances
- ECG Monitoring and Analysis
- Cardiac pacing and defibrillation studies
- Traumatic Brain Injury Research
- Sepsis Diagnosis and Treatment
- Intensive Care Unit Cognitive Disorders
- Heart Failure Treatment and Management
- Restraint-Related Deaths
- Cardiovascular Effects of Exercise
- Cardiovascular Function and Risk Factors
- Atrial Fibrillation Management and Outcomes
- Respiratory Support and Mechanisms
- Cardiac Imaging and Diagnostics
- Healthcare Technology and Patient Monitoring
UCLA Medical Center
2014-2023
University of California, Los Angeles
2012-2023
Harbor–UCLA Medical Center
2014-2023
Long Beach Medical Center
2021
LAC+USC Medical Center
2021
Virginia Commonwealth University
2021
New York City Fire Department
2021
Los Angeles County Museum of Art
2021
University of North Carolina Health Care
2021
Stryker (United States)
2021
BACKGROUND Early countershock of ventricular fibrillation has been shown to improve immediate and long-term outcome cardiac arrest. However, a number investigations in the laboratory clinical population indicate that prolonged most commonly is followed by asystole or nonperfusing spontaneous rhythm, neither which rarely respond current therapy. The use epinephrine doses greater than those currently recommended recently both cerebral myocardial perfusion during cardiopulmonary resuscitation...
ACADEMIC EMERGENCY MEDICINE 2010; 17:926–931 © 2010 by the Society for Academic Emergency Medicine Abstract Background: The goal of out‐of‐hospital endotracheal intubation (ETI) is to reduce mortality and morbidity patients with airway ventilatory compromise. Yet several studies, mostly involving trauma patients, have demonstrated similar or worse neurologic outcomes survival‐to‐hospital discharge rates after ETI. To date, there no study comparing ETI bag‐valve‐mask (BVM) ventilation outcome...
Maintenance of arterial pressure and consciousness by vigorous coughing during ventricular fibrillation has been previously documented. Observations in 4 additional patients with unstable rhythms fibrillating dogs confirm that coughing: (1) produces an pulse; (2) opening the aortic valve; (3) generates forward blood flow; (4) can maintain circulatory arrest. The authors speculate cough-induced systemic perfusion results from compression pulmonary vascular beds a rise intrathoracic pressure,...
The purpose of this study was to evaluate sex differences in out-of-hospital cardiac arrest (OHCA) characteristics, interventions, and outcomes.This is a retrospective analysis from regionalized system. Data on patients treated for OHCA are reported single registry, which all adult were identified 2011 through 2014. Characteristics, treatment, outcomes evaluated with stratification by sex. adjusted odds ratio (OR) survival good neurological outcome (cerebral performance category 1 or 2)...
Reperfusion of ST elevation myocardial infarction (STEMI) is most effective when performed early. Notification the cardiac catheterization laboratory (cath lab) prior to hospital arrival based on paramedic-performed ECGs has been proposed as a strategy decrease time reperfusion and mortality. The purpose this study was compare effects cath lab activation patient versus after at emergency department (ED).We retrospective cohort (n = 1933 cases) using Los Angeles County STEMI database from May...
Clinically, asystole or a bradyarrhythmia may follow countershock of ventricular fibrillation (VF) in up to 40% attempts. This study evaluated the effects artificial cardiac pacing, calcium chloride (CaCl2), and epinephrine postcountershock asystole/bradycardia. Micromanometer catheters were positioned aorta (Ao) right atrium (RA) ten dogs VF induced by (RV) stimulation. After 2 min VF, 400-J was given. In six animals, pulseless followed one countershock. four three countershocks needed...
Objectives: The standard porcine cardiac arrest model uses electrical induction of ventricular fibrillation. Reported restoration spontaneous circulation and survival rates in this are as high 90% for fibrillation durations 7–10 mins, values substantially greater than the clinical population (i.e., 20% to 30%). A first shock success rate, infrequent refibrillation, short times typical model. purpose study was determine whether ischemic swine followed by advanced life support would result...
Post-resuscitation care of cardiac arrest patients at specialized centers may improve outcome after out-of-hospital (OOHCA). This study describes experience with regionalized resuscitated patients.Los Angeles (LA) County established in 2006. Since 2010, protocols mandate transport nontraumatic OOHCA field return spontaneous circulation (ROSC) to a STEMI Receiving Center (SRC) hypothermia protocol. All SRC report outcomes registry maintained by the LA Emergency Medical Services (EMS) Agency....
Objectives: To determine the causes of software misinterpretation ST elevation myocardial infarction (STEMI) compared to clinically identified STEMI identify opportunities improve prehospital identification. Methods: We ECGs acquired from July 2011 through June 2012 using LIFEPAK 15 on adult patients transported by Los Angeles Fire Department. Cases included ≥18 years who received a ECG. Software interpretation ECG (STEMI or not) was with data in regional EMS registry classify as true...
Background Public health emergencies may significantly impact emergency medical services responses to cardiovascular emergencies. We compared out-of-hospital cardiac arrest (OHCA) and ST-segment‒elevation myocardial infarction (STEMI) during the 2020 COVID-19 pandemic 2018 2019 evaluated of California's March 19, stay-at-home order. Methods Results conducted a population-based cross-sectional study using Los Angeles County registry data for adult patients with paramedic provider impression...
Objective In the prehospital setting, countershock terminates ventricular fibrillation (VF) in about 80% of cases. However, is most commonly followed by asystole or pulseless electrical activity (PEA). The consequences such a outcome have not been well studied. purpose this investigation was to compare VF victims shocked into PEA with that patients whose first documented rhythm (primary PEA). Design Observational, retrospective study conducted over 5 yrs (1995–1999). Setting A municipal...
The objectives were to compare the proportion of false-positive activations and intervention times between emergency department (ED) field-based activation coronary catheterization laboratory (cath) team for medical services (EMS) patients identified by out-of-hospital (OOH) 12-lead electrocardiogram (ECG) with ST-segment elevation myocardial infarction (STEMI).This was a retrospective review prospectively collected continuous quality improvement data at single, urban, academic center. By...