Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 18 of 18

Full-Text Articles in Entire DC Network

A Chinese Scoring System For Predicting Successful Retrograde Collateral Traverse In Patients With Chronic Total Coronary Occlusion, Qiu Yu Li, Xiao Long Lin, Fan Qi Li, Zi Chao Cheng, Jia Yu Tian, Dong Hui Zhao, Wayne Bond Lau, Jing Hua Liu, Qian Fan Jul 2023

A Chinese Scoring System For Predicting Successful Retrograde Collateral Traverse In Patients With Chronic Total Coronary Occlusion, Qiu Yu Li, Xiao Long Lin, Fan Qi Li, Zi Chao Cheng, Jia Yu Tian, Dong Hui Zhao, Wayne Bond Lau, Jing Hua Liu, Qian Fan

Department of Emergency Medicine Faculty Papers

BACKGROUND: Retrograde approach technique has been challenging in percutaneous coronary interventional treatment of chronic total occlusion (CTO) coronary disease. The present study endeavors to determine a novel Chinese scoring system for predicting successful collateral channels traverse via retrograde approach.

METHODS: The demographic characteristics and angiographic characteristics of 309 CTO patient were analyzed by univariable and multivariable analysis for selecting potential predictors. And the nomogram was used to establish the scoring system. Then it was evaluated by the internal and external validation.

RESULTS: The predictors of Age, Connections between collateral channels and recipient vessels, and Channel Tortuosity (ACT) were identified with …


Sorting Through Life: Evaluating Patient-Important Measures Of Success In A Medication For Opioid Use Disorder (Moud) Treatment Program, Megan K Reed, Kelsey R Smith, Francesca Ciocco, Richard W. Hass, Avery Lin Cox, Erin L Kelly, Lara Weinstein Jan 2023

Sorting Through Life: Evaluating Patient-Important Measures Of Success In A Medication For Opioid Use Disorder (Moud) Treatment Program, Megan K Reed, Kelsey R Smith, Francesca Ciocco, Richard W. Hass, Avery Lin Cox, Erin L Kelly, Lara Weinstein

Department of Emergency Medicine Faculty Papers

Background: Medication for opioid use disorder (MOUD) is the gold standard treatment for opioid use disorder. Traditionally, "success" in MOUD treatment is measured in terms of program retention, adherence to MOUD, and abstinence from opioid and other drug use. While clinically meaningful, these metrics may overlook other aspects of the lives of people with opioid use disorder (OUD) and surprisingly do not reflect the diagnostic criteria for OUD.

Methods: Authors identified items for a pilesorting task to identify participant-driven measures of MOUD treatment success through semi-structured interviews. Interviews were transcribed verbatim and coded in Nvivo using directed and conventional content …


Association Of Initial Sars-Cov-2 Test Positivity With Patient-Reported Well-Being 3 Months After A Symptomatic Illness., Lauren E Wisk, Michael A Gottlieb, Erica S Spatz, Huihui Yu, Ralph C Wang, B. H. Slovis, Sharon Saydah, Ian D Plumb, Kelli N O'Laughlin, Juan Carlos C Montoy, Samuel A Mcdonald, Zhenqiu Lin, Jin-Mann S Lin, Katherine Koo, Ahamed H Idris, Ryan M Huebinger, Mandy J Hill, Nicole L Gentile, Anna Marie Chang, Jill Anderson, Bala Hota, Arjun K Venkatesh, Robert A Weinstein, Joann G Elmore, Graham Nichol Dec 2022

Association Of Initial Sars-Cov-2 Test Positivity With Patient-Reported Well-Being 3 Months After A Symptomatic Illness., Lauren E Wisk, Michael A Gottlieb, Erica S Spatz, Huihui Yu, Ralph C Wang, B. H. Slovis, Sharon Saydah, Ian D Plumb, Kelli N O'Laughlin, Juan Carlos C Montoy, Samuel A Mcdonald, Zhenqiu Lin, Jin-Mann S Lin, Katherine Koo, Ahamed H Idris, Ryan M Huebinger, Mandy J Hill, Nicole L Gentile, Anna Marie Chang, Jill Anderson, Bala Hota, Arjun K Venkatesh, Robert A Weinstein, Joann G Elmore, Graham Nichol

Department of Emergency Medicine Faculty Papers

IMPORTANCE: Long-term sequelae after symptomatic SARS-CoV-2 infection may impact well-being, yet existing data primarily focus on discrete symptoms and/or health care use.

OBJECTIVE: To compare patient-reported outcomes of physical, mental, and social well-being among adults with symptomatic illness who received a positive vs negative test result for SARS-CoV-2 infection.

DESIGN, SETTING, AND PARTICIPANTS: This cohort study was a planned interim analysis of an ongoing multicenter prospective longitudinal registry study (the Innovative Support for Patients With SARS-CoV-2 Infections Registry [INSPIRE]). Participants were enrolled from December 11, 2020, to September 10, 2021, and comprised adults (aged ≥18 years) with acute symptoms suggestive …


Serum Ctrp9 And High-Molecular Weight Adiponectin Are Associated With Ischemic Stroke., Yan-Qing Zhang, Yan-Wei Zhang, Jian-Li Dai, Chen Li, Wen-Qing Wang, Hai-Feng Zhang, Wayne Bond Lau, Xiao-Ming Wang, Xiao-Gang Liu, Rong Li Nov 2022

Serum Ctrp9 And High-Molecular Weight Adiponectin Are Associated With Ischemic Stroke., Yan-Qing Zhang, Yan-Wei Zhang, Jian-Li Dai, Chen Li, Wen-Qing Wang, Hai-Feng Zhang, Wayne Bond Lau, Xiao-Ming Wang, Xiao-Gang Liu, Rong Li

Department of Emergency Medicine Faculty Papers

BACKGROUND: C1q/TNF-related protein 9 (CTRP9) and adiponectin (APN) have beneficial metabolic regulatory and vasoprotective effects. This study explored alteration of CTRP9 and APN multimers during onset of ischemic stroke and development, to provide novel clinical and experimental basis for recognition and prevention of ischemic stroke.

METHODS: There were 269 patients with ischemic stroke and 182 control subjects included in this study. Serum levels of CTRP9 and APN multimers in different disease stages were measured.

RESULTS: Serum CTRP9, total APN (tAPN), and high-molecular weight (HMW) APN decreased gradually in stage I (acute stage, within 72 h of onset) of ischemic stroke …


Predicting At-Risk Opioid Use Three Months After Ed Visit For Trauma: Results From The Aurora Study, Brittany E. Punches, Uwe Stolz, Caroline E. Freiermuth, Rachel M. Ancona, Samuel A. Mclean, Stacey L. House, Francesca L. Beaudoin, Xinming An, Jennifer S. Stevens, Donglin Zeng, Thomas C. Neylan, Gari D. Clifford, Tanja Jovanovic, Sarah D. Linnstaedt, Laura T. Germine, Kenneth A. Bollen, Scott L. Rauch, John P. Haran, Alan B. Storrow, Christopher Lewandowski, Paul I. Musey Jr., Phyllis L. Hendry, Sophia Sheikh, Christopher W. Jones, Michael C. Kurz, Nina T. Gentile, Meghan E. Mcgrath, Lauren A. Hudak, Jose L. Pascual, Mark J. Seamon, Erica Harris, Anna M. Chang, Claire Pearson, David A. Peak, Roland C. Merchant, Robert M. Domeier, Niels K. Rathlev, Brian J. O'Neil, Leon D. Sanchez, Steven E. Bruce, Robert H. Pietrzak, Jutta Joormann, Deanna M. Barch, Diego A. Pizzagalli, Jordan W. Smoller, Beatriz Luna, Steven E. Harte, James M. Elliott, Ronald C. Kessler, Kerry J. Ressler, Karestan C. Koenen, Michael S. Lyons Sep 2022

Predicting At-Risk Opioid Use Three Months After Ed Visit For Trauma: Results From The Aurora Study, Brittany E. Punches, Uwe Stolz, Caroline E. Freiermuth, Rachel M. Ancona, Samuel A. Mclean, Stacey L. House, Francesca L. Beaudoin, Xinming An, Jennifer S. Stevens, Donglin Zeng, Thomas C. Neylan, Gari D. Clifford, Tanja Jovanovic, Sarah D. Linnstaedt, Laura T. Germine, Kenneth A. Bollen, Scott L. Rauch, John P. Haran, Alan B. Storrow, Christopher Lewandowski, Paul I. Musey Jr., Phyllis L. Hendry, Sophia Sheikh, Christopher W. Jones, Michael C. Kurz, Nina T. Gentile, Meghan E. Mcgrath, Lauren A. Hudak, Jose L. Pascual, Mark J. Seamon, Erica Harris, Anna M. Chang, Claire Pearson, David A. Peak, Roland C. Merchant, Robert M. Domeier, Niels K. Rathlev, Brian J. O'Neil, Leon D. Sanchez, Steven E. Bruce, Robert H. Pietrzak, Jutta Joormann, Deanna M. Barch, Diego A. Pizzagalli, Jordan W. Smoller, Beatriz Luna, Steven E. Harte, James M. Elliott, Ronald C. Kessler, Kerry J. Ressler, Karestan C. Koenen, Michael S. Lyons

Department of Emergency Medicine Faculty Papers

OBJECTIVE: Whether short-term, low-potency opioid prescriptions for acute pain lead to future at-risk opioid use remains controversial and inadequately characterized. Our objective was to measure the association between emergency department (ED) opioid analgesic exposure after a physical, trauma-related event and subsequent opioid use. We hypothesized ED opioid analgesic exposure is associated with subsequent at-risk opioid use.

METHODS: Participants were enrolled in AURORA, a prospective cohort study of adult patients in 29 U.S., urban EDs receiving care for a traumatic event. Exclusion criteria were hospital admission, persons reporting any non-medical opioid use (e.g., opioids without prescription or taking more than prescribed …


Promotion Of Covid-19 Va(X)Ccination In The Emergency Department-Procovaxed: Study Protocol For A Cluster Randomized Controlled Trial., Robert M Rodriguez, Kelli O'Laughlin, Stephanie A Eucker, Anna Marie Chang, Kristin L. Rising, Graham Nichol, Alena Pauley, Hemal Kanzaria, Alexzandra Gentsch, Cindy Li, Herbie Duber, Jonathan Butler, Vidya Eswaran, Dave Glidden Apr 2022

Promotion Of Covid-19 Va(X)Ccination In The Emergency Department-Procovaxed: Study Protocol For A Cluster Randomized Controlled Trial., Robert M Rodriguez, Kelli O'Laughlin, Stephanie A Eucker, Anna Marie Chang, Kristin L. Rising, Graham Nichol, Alena Pauley, Hemal Kanzaria, Alexzandra Gentsch, Cindy Li, Herbie Duber, Jonathan Butler, Vidya Eswaran, Dave Glidden

Department of Emergency Medicine Faculty Papers

Background: We conducted in-depth interviews to characterize reasons for COVID-19 vaccine hesitancy in emergency department (ED) patients and developed messaging platforms that may address their concerns. In this trial, we seek to determine whether provision of these COVID-19 vaccine messaging platforms in EDs will be associated with greater COVID-19 vaccine acceptance and uptake in unvaccinated ED patients.

Methods: This is a cluster-randomized controlled trial (RCT) evaluating our COVID-19 vaccine messaging platforms in seven hospital EDs (mix of academic, community, and safety-net EDs) in four US cities. Within each study site, we randomized 30 1-week periods to the intervention and 30 …


Study Protocol For The Innovative Support For Patients With Sars-Cov-2 Infections Registry (Inspire): A Longitudinal Study Of The Medium And Long-Term Sequelae Of Sars-Cov-2 Infection, Kelli N O'Laughlin, Matthew Thompson, Bala Hota, Michael Gottlieb, Ian D Plumb, Anna Marie Chang, Lauren E Wisk, Aron J Hall, Ralph C Wang, Erica S Spatz, Kari A Stephens, Ryan M Huebinger, Samuel A Mcdonald, Arjun Venkatesh, Nikki Gentile, B. H. Slovis, Mandy Hill, Sharon Saydah, Ahamed H Idris, Robert Rodriguez, Harlan M Krumholz, Joann G Elmore, Robert A Weinstein, Graham Nichol Mar 2022

Study Protocol For The Innovative Support For Patients With Sars-Cov-2 Infections Registry (Inspire): A Longitudinal Study Of The Medium And Long-Term Sequelae Of Sars-Cov-2 Infection, Kelli N O'Laughlin, Matthew Thompson, Bala Hota, Michael Gottlieb, Ian D Plumb, Anna Marie Chang, Lauren E Wisk, Aron J Hall, Ralph C Wang, Erica S Spatz, Kari A Stephens, Ryan M Huebinger, Samuel A Mcdonald, Arjun Venkatesh, Nikki Gentile, B. H. Slovis, Mandy Hill, Sharon Saydah, Ahamed H Idris, Robert Rodriguez, Harlan M Krumholz, Joann G Elmore, Robert A Weinstein, Graham Nichol

Department of Emergency Medicine Faculty Papers

Background: Reports on medium and long-term sequelae of SARS-CoV-2 infections largely lack quantification of incidence and relative risk. We describe the rationale and methods of the Innovative Support for Patients with SARS-CoV-2 Registry (INSPIRE) that combines patient-reported outcomes with data from digital health records to understand predictors and impacts of SARS-CoV-2 infection.

Methods: INSPIRE is a prospective, multicenter, longitudinal study of individuals with symptoms of SARS-CoV-2 infection in eight regions across the US. Adults are eligible for enrollment if they are fluent in English or Spanish, reported symptoms suggestive of acute SARS-CoV-2 infection, and if they are within 42 days …


Contemporary Nstemi Management: The Role Of The Hospitalist., Charles V Pollack, Alpesh Amin, Tracy Wang, Steven Deitelzweig, Marc Cohen, David Slattery, John Fanikos, Christopher Dilascia, Regan Tuder, Scott Kaatz Feb 2020

Contemporary Nstemi Management: The Role Of The Hospitalist., Charles V Pollack, Alpesh Amin, Tracy Wang, Steven Deitelzweig, Marc Cohen, David Slattery, John Fanikos, Christopher Dilascia, Regan Tuder, Scott Kaatz

Department of Emergency Medicine Faculty Papers

Non-ST-segment elevation myocardial infarction (NSTEMI) is defined as elevated cardiac biomarkers of necrosis in the absence of persistent ST-segment elevation in the setting of anginal symptoms or other acute event. It carries a poorer prognosis than most ST-segment elevation events, owing to the typical comorbidity burden of the older NSTEMI patients as well as diverse etiologies that add complexity to therapeutic decision-making. It may result from an acute atherothrombotic event ('Type 1') or as the result of other causes of mismatch of myocardial oxygen supply and demand ('Type 2'). Regardless of type and other clinical factors, the hospital medicine specialist …


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 Aug 2018

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.


An Assessment Of Emotional Intelligence In Emergency Medicine Resident Physicians., Dimitrios Papanagnou, Kathryn M Linder, Anuh Shah, Kory Scott London, Shruti Chandra, Robin Naples Dec 2017

An Assessment Of Emotional Intelligence In Emergency Medicine Resident Physicians., Dimitrios Papanagnou, Kathryn M Linder, Anuh Shah, Kory Scott London, Shruti Chandra, Robin Naples

Department of Emergency Medicine Faculty Papers

Objectives: To define the emotional intelligence (EI) profile of emergency medicine (EM) residents, and identify resident EI strengths and weaknesses.

Methods: First-, second-, and third-year residents (post-graduate years [PGY] 1, 2, and 3, respectively) of Thomas Jefferson University Hospital's EM Program completed the Emotional Quotient Inventory (EQ-i 2.0), a validated instrument offered by Multi-Health Systems. Reported scores included total mean EI, 5 composite scores, and 15 subscales of EI. Scores are reported as means with 95% CIs. The unpaired, two-sample t-test was used to evaluate differences in means.

Results: Thirty-five residents completed the assessment (response rate 97.2%). Scores were normed …


An Assessment Of Emotional Intelligence In Emergency Medicine Resident Physicians., Dimitrios Papanagnou, Kathryn Linder, Anuj Shah, Kory Scott London, Shruti Chandra, Robin Naples Dec 2017

An Assessment Of Emotional Intelligence In Emergency Medicine Resident Physicians., Dimitrios Papanagnou, Kathryn Linder, Anuj Shah, Kory Scott London, Shruti Chandra, Robin Naples

Department of Emergency Medicine Faculty Papers

OBJECTIVES: To define the emotional intelligence (EI) profile of emergency medicine (EM) residents, and identify resident EI strengths and weaknesses.

METHODS: First-, second-, and third-year residents (post-graduate years [PGY] 1, 2, and 3, respectively) of Thomas Jefferson University Hospital's EM Program completed the Emotional Quotient Inventory (EQ-i 2.0), a validated instrument offered by Multi-Health Systems. Reported scores included total mean EI, 5 composite scores, and 15 subscales of EI. Scores are reported as means with 95% CIs. The unpaired, two-sample t-test was used to evaluate differences in means.

RESULTS: Thirty-five residents completed the assessment (response rate 97.2%). Scores were normed …


Clinician-Performed Bedside Ultrasound In Improving Diagnostic Accuracy In Patients Presenting To The Ed With Acute Dyspnea., Dimitrios Papanagnou, Michael Secko, John Gullett, Michael Stone, Shahriar Zehtabchi Apr 2017

Clinician-Performed Bedside Ultrasound In Improving Diagnostic Accuracy In Patients Presenting To The Ed With Acute Dyspnea., Dimitrios Papanagnou, Michael Secko, John Gullett, Michael Stone, Shahriar Zehtabchi

Department of Emergency Medicine Faculty Papers

INTRODUCTION: Diagnosing acute dyspnea is a critical action performed by emergency physicians (EP). It has been shown that ultrasound (US) can be incorporated into the work-up of the dyspneic patient; but there is little data demonstrating its effect on decision-making. We sought to examine the impact of a bedside, clinician-performed cardiopulmonary US protocol on the clinical impression of EPs evaluating dyspneic patients, and to measure the change in physician confidence with the leading diagnosis before and after US.

METHODS: We conducted a prospective observational study of EPs treating adult patients with undifferentiated dyspnea in an urban academic center, excluding those …


Recurrent Violent Injury: Magnitude, Risk Factors, And Opportunities For Intervention From A Statewide Analysis., Elinore Kaufman, Kristin L. Rising, Md, Ms, Douglas J. Wiebe, David J. Ebler, Marie L. Crandall, M. Kit Delgado Sep 2016

Recurrent Violent Injury: Magnitude, Risk Factors, And Opportunities For Intervention From A Statewide Analysis., Elinore Kaufman, Kristin L. Rising, Md, Ms, Douglas J. Wiebe, David J. Ebler, Marie L. Crandall, M. Kit Delgado

Department of Emergency Medicine Faculty Papers

INTRODUCTION: Although preventing recurrent violent injury is an important component of a public health approach to interpersonal violence and a common focus of violence intervention programs, the true incidence of recurrent violent injury is unknown. Prior studies have reported recurrence rates from 0.8% to 44%, and risk factors for recurrence are not well established.

METHODS: We used a statewide, all-payer database to perform a retrospective cohort study of emergency department visits for injury due to interpersonal violence in Florida, following up patients injured in 2010 for recurrence through 2012. We assessed risk factors for recurrence with multivariable logistic regression and …


Low-Dose Versus Standard-Dose Tissue Plasminogen Activator In Acute Ischemic Stroke In Asian Populations: A Meta-Analysis., Meng-Dong Liu, Wei-Dong Ning, Ren-Cong Wang, Wei Chen, Yang Yang, Yan Lin, Da-Hai Hu, Wayne Bond Lau, Yan Qu Dec 2015

Low-Dose Versus Standard-Dose Tissue Plasminogen Activator In Acute Ischemic Stroke In Asian Populations: A Meta-Analysis., Meng-Dong Liu, Wei-Dong Ning, Ren-Cong Wang, Wei Chen, Yang Yang, Yan Lin, Da-Hai Hu, Wayne Bond Lau, Yan Qu

Department of Emergency Medicine Faculty Papers

Recent studies have investigated the most efficacious dose of intravenous tissue plasminogen activator (IV-tPA) for acute ischemic stroke (AIS) patients. There remains no definitive consensus concerning the superior efficacious IV-tPA dose (standard- vs. low-dose), prompting us to perform a meta-analysis comparing the efficacy and safety profile of standard- versus low-dose IV-tPA.We identified relevant studies pertaining to the specific aim of our meta-analysis by searching PubMed and EMBASE (January 1990-September 2015) Either a fixed- or random-effects model was employed (dependent upon data heterogeneity) to analyze the efficacy and safety outcome.Ten cohort studies involving 4389 sum patients were included in the meta-analysis. …


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 Nov 2015

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 …


Racial Disparities In Intravenous Recombinant Tissue Plasminogen Activator Use Persist At Primary Stroke Centers., Hugo J. Aparicio, Brendan G. Carr, Scott E. Kasner, Michael J. Kallan, Karen C. Albright, Dawn O. Kleindorfer, Michael T. Mullen Oct 2015

Racial Disparities In Intravenous Recombinant Tissue Plasminogen Activator Use Persist At Primary Stroke Centers., Hugo J. Aparicio, Brendan G. Carr, Scott E. Kasner, Michael J. Kallan, Karen C. Albright, Dawn O. Kleindorfer, Michael T. Mullen

Department of Emergency Medicine Faculty Papers

BACKGROUND: Primary stroke centers (PSCs) utilize more recombinant tissue plasminogen activator (rt-PA) than non-PSCs. The impact of PSCs on racial disparities in rt-PA use is unknown.

METHODS AND RESULTS: We used data from the Nationwide Inpatient Sample from 2004 to 2010, limited to states that publicly reported hospital identity and race. Hospitals certified as PSCs by The Joint Commission were identified. Adults with a diagnosis of ischemic stroke were analyzed. Rt-PA use was defined by the International Classification of Diseases, 9th Revision procedure code 99.10. Discharges (304 152 patients) from 26 states met eligibility criteria, and of these 71.5% were …


Aging Aggravates Nitrate-Mediated Ros/Rns Changes., Qian Fan, Lifen Chen, Shujuan Cheng, Fang Li, Wayne Bond Lau, Le Feng Wang, Jing Hua Liu Mar 2014

Aging Aggravates Nitrate-Mediated Ros/Rns Changes., Qian Fan, Lifen Chen, Shujuan Cheng, Fang Li, Wayne Bond Lau, Le Feng Wang, Jing Hua Liu

Department of Emergency Medicine Faculty Papers

Nitrates are the most frequently prescribed and utilized drugs worldwide. The elderly are a major population receiving nitrate therapy. Both nitrates and aging can increase in vivo reactive oxygen species (ROS) and reactive nitrogen species (RNS). To date, the effects of aging upon nitrate-induced ROS/RNS alteration are unknown. The present study tested the effects of aging upon nitrate-induced ROS/RNS alteration in vivo. 32 adults and 43 elderly unstable angina (UA) patients were subjected to 48 hours of isosorbide dinitrate intravenous injection (50  μg/minutes) in this clinical study. Blood samples were obtained at baseline and conclusion. Outcome measures of oxidative stress …


Systemic Adiponectin Malfunction As A Risk Factor For Cardiovascular Disease., Wayne Bond Lau, Ling Tao, Yajing Wang, Rong Li, Xin L Ma Oct 2011

Systemic Adiponectin Malfunction As A Risk Factor For Cardiovascular Disease., Wayne Bond Lau, Ling Tao, Yajing Wang, Rong Li, Xin L Ma

Department of Emergency Medicine Faculty Papers

Adiponectin (Ad) is an abundant protein hormone regulatory of numerous metabolic processes. The 30 kDa protein originates from adipose tissue, with full-length and globular domain circulatory forms. A collagenous domain within Ad leads to spontaneous self-assemblage into various oligomeric isoforms, including trimers, hexamers, and high-molecular-weight multimers. Two membrane-spanning receptors for Ad have been identified, with differing concentration distribution in various body tissues. The major intracellular pathway activated by Ad includes phosphorylation of AMP-activated protein kinase, which is responsible for many of Ad's metabolic regulatory, anti-inflammatory, vascular protective, and anti-ischemic properties. Additionally, several AMP-activated protein kinase-independent mechanisms responsible for Ad's anti-inflammatory …