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https://www.readbyqxmd.com/read/28738007/comparison-of-intraosseous-pentobarbital-administration-and-thoracic-compression-for-euthanasia-of-anesthetized-sparrows-passer-domesticus-and-starlings-sturnus-vulgaris
#1
Joanne R Paul-Murphy, Andrew Engilis, Peter J Pascoe, D Colette Williams, Kate A Gustavsen, Tracy L Drazenovich, M Kevin Keel, Tamsen M Polley, Irene E Engilis
OBJECTIVE To compare intraosseous pentobarbital treatment (IPT) and thoracic compression (TC) on time to circulatory arrest and an isoelectric electroencephalogram (EEG) in anesthetized passerine birds. ANIMALS 30 wild-caught adult birds (17 house sparrows [Passer domesticus] and 13 European starlings [Sturnus vulgaris]). PROCEDURES Birds were assigned to receive IPT or TC (n = 6/species/group). Birds were anesthetized, and carotid arterial pulses were monitored by Doppler methodology. Five subdermal braided-wire electrodes were used for EEG...
August 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28736742/unique-morphological-characteristics-of-mitochondrial-subtypes-in-the-heart-the-effect-of-ischemia-and-ischemic-preconditioning
#2
Siavash Beikoghli Kalkhoran, Peter Munro, Fan Qiao, Sang-Bing Ong, Andrew R Hall, Hector Cabrera-Fuentes, Bibhas Chakraborty, William A Boisvert, Derek M Yellon, Derek J Hausenloy
RATIONALE: Three subsets of mitochondria have been described in adult cardiomyocytes - intermyofibrillar (IMF), subsarcolemmal (SSM), and perinuclear (PN). They have been shown to differ in physiology, but whether they also vary in morphological characteristics is unknown. Ischemic preconditioning (IPC) is known to prevent mitochondrial dysfunction induced by acute myocardial ischemia/reperfusion injury (IRI), but whether IPC can also modulate mitochondrial morphology is not known. AIMS: Morphological characteristics of three different subsets of adult cardiac mitochondria along with the effect of ischemia and IPC on mitochondrial morphology will be investigated...
January 2017: Discoveries
https://www.readbyqxmd.com/read/28733430/atherogenic-lipoprotein-determinants-of-cardiovascular-disease-and-residual-risk-among-individuals-with-low-low-density-lipoprotein-cholesterol
#3
Patrick R Lawler, Akintunde O Akinkuolie, Audrey Y Chu, Svati H Shah, William E Kraus, Damian Craig, Latha Padmanabhan, Robert J Glynn, Paul M Ridker, Daniel I Chasman, Samia Mora
BACKGROUND: Levels of LDL (low-density lipoprotein) cholesterol in the population are declining, and increasing attention is being focused on residual lipid-related pathways of atherosclerotic cardiovascular disease risk beyond LDL cholesterol. Among individuals with low (<130 mg/dL) LDL cholesterol, we undertook detailed profiling of circulating atherogenic lipoproteins in relation to incident cardiovascular disease in 2 populations. METHODS AND RESULTS: We performed proton nuclear magnetic resonance spectroscopy to quantify concentrations of LDL and VLDL (very low-density lipoprotein) particle subclasses in 11 984 JUPITER trial participants (NCT00239681)...
July 21, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28728743/outcomes-of-st-elevation-myocardial-infarction-complicated-by-out-of-hospital-cardiac-arrest-from-the-los-angeles-county-regional-system
#4
David M Shavelle, Nichole Bosson, Joseph L Thomas, Amy H Kaji, Gene Sung, William J French, James T Niemann
The objective of this study was to evaluate the time to primary percutaneous coronary intervention (PCI) and the outcome for patients with ST elevation myocardial infarction (STEMI) complicated by out-of-hospital cardiac arrest (OHCA). In this regional system, all patients with STEMI and/or OHCA with return of spontaneous circulation were transported to STEMI Receiving Centers. The outcomes registry was queried for patients with STEMI with underwent primary PCI from April 2011 to December 2014. Patients with STEMI complicated by OHCA were compared with a reference group of STEMI without OHCA...
June 15, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28727672/cardiac-rehabilitation-in-patients-with-left-ventricular-assist-device-a-systematic-review-and-meta-analysis
#5
Toufik Mahfood Haddad, Alok Saurav, Aiman Smer, Muhammad S Azzouz, Abhilash Akinapelli, Mark A Williams, Venkata M Alla
PURPOSE: Exercise-based cardiac rehabilitation (EBCR) has been demonstrated to improve functional capacity in heart failure (HF). However, there are limited data on the effect of EBCR in patients with advanced HF and left ventricular assist devices (LVADs). This meta-analysis sought to evaluate the effects of EBCR on functional capacity in patients with LVAD. METHODS: PubMed, Web of Science, CINAHL, and Cochrane Library databases were searched for randomized studies assessing the impact of EBCR in patients following LVAD implantation compared with standard therapy (ST)...
July 19, 2017: Journal of Cardiopulmonary Rehabilitation and Prevention
https://www.readbyqxmd.com/read/28724493/oral-transmucosal-detomidine-gel-in-new-zealand-white-rabbits-oryctolagus-cuniculus
#6
Morika D Williams, C Tyler Long, Jessica R Durrant, Gabriel P McKeon, Heather R Shive, Emily H Griffith, Kristen M Messenger, Richard E Fish
Handling and restraining rabbits for routine procedures may be impossible without prior sedation, result in unnecessary stress or injury to the rabbit or handler, and increase experimental variability. Parenteral administration of sedatives can cause stress also, as well as localized pain and tissue damage, especially in fractious animals. Detomidine hydrochloride, an α2-adrenergic receptor agonist, is commercially available in an oral transmucosal (OTM) gel formulation that is FDA-approved for sedation and restraint in horses...
July 1, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28719492/fifty-men-3510-marathons-cardiac-risk-factors-and-coronary-artery-calcium-scores
#7
William O Roberts, Robert S Schwartz, Ross F Garberich, Samantha Carlson, Thomas Knickelbine, Jonathan G Schwartz, Gretchen Peichel, John R Lesser, Kelly Wickstrom, Kevin M Harris
INTRODUCTION/PURPOSE: Many male marathon runners have elevated coronary artery calcium (CAC) scores despite high physical activity. We examined the association between CAC scores, cardiovascular risk factors, and lifestyle habits in long term marathoners. METHODS: We recruited men who had run ≥1 marathon annually for 25 consecutive years. CAC was assessed using coronary computed tomography angiography. Atherosclerotic cardiovascular disease (CAD) risk factors were measured with a 12-lead ECG, serum lipid panel, height, weight, resting blood pressure and heart rate, and a risk factor questionnaire...
July 17, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28712559/impact-of-percutaneous-mitral-valvuloplasty-on-left-ventricular-function-in-patients-with-mitral-stenosis-assessed-by-3d-echocardiography
#8
William Antonio M Esteves, Lucas Lodi-Junqueira, Juliana Rodrigues Soares, Guilherme Rafael Sant'Anna Athayde, Gabriela Assunção Goebel, Lucas Amorim Carvalho, Xin Zeng, Judy Hung, Timothy C Tan, Maria Carmo Pereira Nunes
BACKGROUND: The status of intrinsic left ventricular (LV) contractility in patients with isolated rheumatic mitral stenosis (MS) has been debated. The acute changes in loading conditions after percutaneous mitral valvuloplasty (PMV) may affect LV performance. We aimed to examine the acute effects of PMV on LV function and identify factors associated with LV ejection fraction (LVEF) changes, and determinants of long-term events following the procedure. METHODS: One hundred and forty-two patients who underwent PMV for symptomatic rheumatic MS (valve area of 0...
June 23, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28705875/electrical-and-structural-substrate-of-arrhythmogenic-right-ventricular-cardiomyopathy-determined-using-noninvasive-electrocardiographic-imaging-and-late-gadolinium-magnetic-resonance-imaging
#9
Christopher M Andrews, Neil T Srinivasan, Stefania Rosmini, Heerajnarain Bulluck, Michele Orini, Sharon Jenkins, Antonis Pantazis, William J McKenna, James C Moon, Pier D Lambiase, Yoram Rudy
BACKGROUND: Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a significant cause of sudden cardiac death in the young. Improved noninvasive assessment of ARVC and better understanding of the disease substrate are important for improving patient outcomes. METHODS AND RESULTS: We studied 20 genotyped ARVC patients with a broad spectrum of disease using electrocardiographic imaging (a method for noninvasive cardiac electrophysiology mapping) and advanced late gadolinium enhancement cardiac magnetic resonance scar imaging...
July 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28694349/the-linguistic-and-interactional-factors-impacting-recognition-and-dispatch-in-emergency-calls-for-out-of-hospital-cardiac-arrest-a-mixed-method-linguistic-analysis-study-protocol
#10
Marine Riou, Stephen Ball, Teresa A Williams, Austin Whiteside, Kay L O'Halloran, Janet Bray, Gavin D Perkins, Peter Cameron, Daniel M Fatovich, Madoka Inoue, Paul Bailey, Deon Brink, Karen Smith, Phillip Della, Judith Finn
INTRODUCTION: Emergency telephone calls placed by bystanders are crucial to the recognition of out-of-hospital cardiac arrest (OHCA), fast ambulance dispatch and initiation of early basic life support. Clear and efficient communication between caller and call-taker is essential to this time-critical emergency, yet few studies have investigated the impact that linguistic factors may have on the nature of the interaction and the resulting trajectory of the call. This research aims to provide a better understanding of communication factors impacting on the accuracy and timeliness of ambulance dispatch...
July 9, 2017: BMJ Open
https://www.readbyqxmd.com/read/28692690/risk-of-surgical-site-infection-acute-kidney-injury-and-clostridium-difficile-infection-following-antibiotic-prophylaxis-with-vancomycin-plus-a-beta-lactam-versus-either-drug-alone-a-national-propensity-score-adjusted-retrospective-cohort-study
#11
MULTICENTER STUDY
Westyn Branch-Elliman, John E Ripollone, William J O'Brien, Kamal M F Itani, Marin L Schweizer, Eli Perencevich, Judith Strymish, Kalpana Gupta
BACKGROUND: The optimal regimen for perioperative antimicrobial prophylaxis is controversial. Use of combination prophylaxis with a beta-lactam plus vancomycin is increasing; however, the relative risks and benefits associated with this strategy are unknown. Thus, we sought to compare postoperative outcomes following administration of 2 antimicrobials versus a single agent for the prevention of surgical site infections (SSIs). Potential harms associated with combination regimens, including acute kidney injury (AKI) and Clostridium difficile infection (CDI), were also considered...
July 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28678071/reporting-of-perioperative-adverse-events-by-pediatric-anesthesiologists-at-a-tertiary-children-s-hospital-targeted-interventions-to-increase-the-rate-of-reporting
#12
Glyn D Williams, Matthew K Muffly, Julianne M Mendoza, Nina Wixson, Kit Leong, Rebecca E Claure
BACKGROUND: Incident reporting systems (IRSs) are important patient safety tools for identifying risks and opportunities for improvement. A major IRS limitation is underreporting of incidents. Perioperative anesthesia IRSs have been established at multiple pediatric institutions and a national pediatric anesthesia IRS for perioperative serious adverse events (SAEs) is maintained by Wake Up Safe (WUS), a patient safety organization dedicated to pediatric anesthesia quality improvement...
July 1, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28674032/genetic-adjuvantation-of-a-cell-based-therapeutic-vaccine-for-amelioration-of-chagasic-cardiomyopathy
#13
Vanaja Konduri, Matthew M Halpert, Dan Liang, Jonathan M Levitt, Julio V C Cruz, Bin Zhan, Maria Elena Bottazzi, Peter J Hotez, Kathryn M Jones, William K Decker
Chagas disease, caused by infection with the protozoan parasite Trypanosoma cruzi, is a leading cause of heart disease ("Chagasic cardiomyopathy") in Latin America, disproportionately affecting people in resource poor areas. Efficacy of currently approved pharmaceutical treatments is mainly limited to acute infection, and there are no effective treatments for the chronic phase of the disease. Pre-clinical models of Chagas disease have demonstrated that antigen specific CD8(+)IFNγ(+) T-cell responses are essential for reducing parasite burdens, increasing survival, and decreasing cardiac pathology in both the acute and chronic phases of Chagas disease...
July 3, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28665234/magnesium-levels-and-neurologic-outcomes-in-patients-undergoing-therapeutic-hypothermia-after-cardiac-arrest
#14
William H Perucki, Brett Hiendlmayr, David M O'Sullivan, Angeline C Gunaseelan, Farruk Fayas, Antonio B Fernandez
Therapeutic hypothermia (TH) improves neurological outcomes after cardiac arrest by mitigating cerebral reperfusion injury. Serum magnesium (Mg) inhibits glutamate release, restores blood-brain barrier integrity, and decreases brain edema. The neuroprotective role of Mg in cardiac arrest patients undergoing TH is not well established. We analyzed 438 survivors of cardiac arrest who completed a TH protocol from 2008 through 2016. Multivariate and receiver operating characteristic (ROC) analyses examined the association between Mg supplementation and Mg levels before, during, and after TH with neurologic outcomes...
June 30, 2017: Therapeutic Hypothermia and Temperature Management
https://www.readbyqxmd.com/read/28663361/hyperaemic-microvascular-resistance-predicts-clinical-outcome-and-microvascular-injury-after-myocardial-infarction
#15
Guus A de Waard, Gregor Fahrni, Douwe de Wit, Hironori Kitabata, Rupert Williams, Niket Patel, Paul F Teunissen, Peter M van de Ven, Sabahattin Umman, Paul Knaapen, Divaka Perera, Takashi Akasaka, Murat Sezer, Rajesh K Kharbanda, Niels van Royen
OBJECTIVES: Early detection of microvascular dysfunction after acute myocardial infarction (AMI) could identify patients at high risk of adverse clinical outcome, who may benefit from adjunctive treatment. Our objective was to compare invasively measured coronary flow reserve (CFR) and hyperaemic microvascular resistance (HMR) for their predictive power of long-term clinical outcome and cardiac magnetic resonance (CMR)-defined microvascular injury (MVI). METHODS: Simultaneous intracoronary Doppler flow velocity and pressure measurements acquired immediately after revascularisation for AMI from five centres were pooled...
June 29, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28655164/role-of-diastolic-function-indices-in-the-risk-stratification-of-patients-with-mixed-aortic-valve-disease
#16
Alexander C Egbe, Arooj R Khan, Amber Boler, Sameh M Said, Jeffrey B Geske, William R Miranda, Emmanuel Akintoye, Heidi M Connolly, Carole A Warnes, Jae K Oh
Aims: Determine the role of diastolic function indices in pre-operative and post-operative risk stratification in patients with moderate mixed aortic valve disease (MAVD). Methods and results: A retrospective study was conducted of asymptomatic patients with moderate MAVD (a combination of moderate aortic stenosis and moderate aortic regurgitation) and an ejection fraction of 50% or more who were followed up at Mayo Clinic from 1 January 2004, to 31 December 2013...
June 23, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28651927/doxorubicin-plus-evofosfamide-versus-doxorubicin-alone-in-locally-advanced-unresectable-or-metastatic-soft-tissue-sarcoma-th-cr-406-sarc021-an-international-multicentre-open-label-randomised-phase-3-trial
#17
William D Tap, Zsuzsanna Papai, Brian A Van Tine, Steven Attia, Kristen N Ganjoo, Robin L Jones, Scott Schuetze, Damon Reed, Sant P Chawla, Richard F Riedel, Anders Krarup-Hansen, Maud Toulmonde, Isabelle Ray-Coquard, Peter Hohenberger, Giovanni Grignani, Lee D Cranmer, Scott Okuno, Mark Agulnik, William Read, Christopher W Ryan, Thierry Alcindor, Xavier F Garcia Del Muro, G Thomas Budd, Hussein Tawbi, Tillman Pearce, Stew Kroll, Denise K Reinke, Patrick Schöffski
BACKGROUND: Evofosfamide is a hypoxia-activated prodrug of bromo-isophosphoramide mustard. We aimed to assess the benefit of adding evofosfamide to doxorubicin as first-line therapy for advanced soft-tissue sarcomas. METHODS: We did this international, open-label, randomised, phase 3, multicentre trial (TH CR-406/SARC021) at 81 academic or community investigational sites in 13 countries. Eligible patients were aged 15 years or older with a diagnosis of an advanced unresectable or metastatic soft-tissue sarcoma, of intermediate or high grade, for which no standard curative therapy was available, an Eastern Cooperative Oncology Group performance status of 0-1, and measurable disease by Response Evaluation Criteria in Solid Tumors version 1...
June 23, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28648539/prothrombin-complex-concentrates-in-pediatric-cardiac-surgery-the-current-state-and-the-future
#18
REVIEW
Elena Ashikhmina, Sameh Said, Mark M Smith, Vilmarie Rodriguez, William C Oliver, Gregory A Nuttall, Joseph A Dearani, Hartzell V Schaff
BACKGROUND: After decades of practice of pediatric cardiac surgery, postoperative bleeding due to the immaturity of hemostasis, hemodilution, and hypothermia remains a concern. Recently, a new approach for adult coagulopathy after bypass has emerged. Prothrombin complex concentrates (PCCs), designed to treat bleeding in hemophilia patients, are safely and efficiently used off label for hemorrhage after bypass. However, optimal dosing, indications and contraindications, and laboratory tests to assess the efficacy of PCC use in children have not yet been established...
June 22, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28646592/influence-of-inspiratory-resistive-loading-on-expiratory-muscle-fatigue-in-healthy-humans
#19
Carli M Peters, Joseph F Welch, Paolo B Dominelli, Yannick Molgat-Seon, Lee M Romer, Donald C McKenzie, A William Sheel
What is the central question of this study? This study is the first to measure objectively both inspiratory and expiratory muscle fatigue after inspiratory resistive loading to determine whether the expiratory muscles are activated to the point of fatigue when specifically loading the inspiratory muscles. What is the main finding and its importance? The absence of abdominal muscle fatigue suggests that future studies attempting to understand the neural and circulatory consequences of diaphragm fatigue can use inspiratory resistive loading without considering the confounding effects of abdominal muscle fatigue...
June 24, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28630913/an-innovative-biologic-system-for-photon-powered-myocardium-in-the-ischemic-heart
#20
Jeffrey E Cohen, Andrew B Goldstone, Michael J Paulsen, Yasuhiro Shudo, Amanda N Steele, Bryan B Edwards, Jay B Patel, John W MacArthur, Michael S Hopkins, Casey E Burnett, Kevin J Jaatinen, Akshara D Thakore, Justin M Farry, Vi N Truong, Alexandra T Bourdillon, Lyndsay M Stapleton, Anahita Eskandari, Alexander S Fairman, William Hiesinger, Tatiana V Esipova, William L Patrick, Keven Ji, Judith A Shizuru, Y Joseph Woo
Coronary artery disease is one of the most common causes of death and disability, afflicting more than 15 million Americans. Although pharmacological advances and revascularization techniques have decreased mortality, many survivors will eventually succumb to heart failure secondary to the residual microvascular perfusion deficit that remains after revascularization. We present a novel system that rescues the myocardium from acute ischemia, using photosynthesis through intramyocardial delivery of the cyanobacterium Synechococcus elongatus...
June 2017: Science Advances
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