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https://www.readbyqxmd.com/read/28823072/prevalence-and-predictors-of-digoxin-utilization-among-heart-failure-patients-with-reduced-ejection-fraction-in-qatar
#1
Alaa Abdullah Rahhal, Ahmed Awaisu, Kawthar M Tawengi, Safae AbuYousef, Lylia Mekideche
Background Digoxin is a cardiac glycoside that is recommended by clinical practice guidelines to be used in patients with heart failure with reduced ejection fraction (HFrEF) who still have persistent symptoms despite optimal medical therapy. However, this recommendation is based on limited and old trial data. Moreover, pharmacoepidemiologic studies are important in determining the prevalence of digoxin use and factors influencing this. Objective This study aimed to determine the prevalence and the predictors of digoxin utilization among patients with HFrEF with or without atrial fibrillation (AF) in Qatar...
August 19, 2017: International Journal of Clinical Pharmacy
https://www.readbyqxmd.com/read/28823052/sensitivity-analysis-of-ventricular-activation-and-electrocardiogram-in-tailored-models-of-heart-failure-patients
#2
C Sánchez, G D'Ambrosio, F Maffessanti, E G Caiani, F W Prinzen, R Krause, A Auricchio, M Potse
Cardiac resynchronization therapy is not effective in a variable proportion of heart failure patients. An accurate knowledge of each patient's electroanatomical features could be helpful to determine the most appropriate treatment. The goal of this study was to analyze and quantify the sensitivity of left ventricular (LV) activation and the electrocardiogram (ECG) to changes in 39 parameters used to tune realistic anatomical-electrophysiological models of the heart. Electrical activity in the ventricles was simulated using a reaction-diffusion equation...
August 19, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28822967/temporal-dynamics-of-cardiac-hypertrophic-growth-in-response-to-pressure-overload
#3
Yuan Wang, Yuannyu Zhang, Guanqiao Ding, Herman May, Jian Xu, Thomas G Gillette, Hang Wang, Zhao V Wang
Hypertension is one of the most important risk factors of heart failure. In response to high blood pressure, the left ventricle manifests hypertrophic growth to ameliorate wall stress, which may progress into decompensation and trigger pathological cardiac remodeling. Despite the clinical importance, the temporal dynamics of pathological cardiac growth remains elusive. Here, we took advantage of the puromycin labeling approach to measure the relative rates of protein synthesis as a way to delineate the temporal regulation of cardiac hypertrophic growth...
August 19, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28822963/%C3%AE-1a-subtype-adrenergic-agonist-therapy-for-failing-right-ventricle
#4
Patrick M Cowley, Guan-Ying Wang, Sunil K Joshi, Philip M Swigart, David H Lovett, Paul C Simpson, Anthony J Baker
Failure of the right ventricle (RV) is a serious disease with a poor prognosis and limited treatment options. Signaling by α1-adrenergic receptors (α1-ARs), in particular the α1A-subtype, mediate cardioprotective effects in multiple heart failure models. Recent studies show that chronic treatment with the α1A-subtype agonist A61603 improves function and survival in a model of LV failure. The goal of this study was to determine if chronic A61603 treatment is beneficial in a RV failure model. We used tracheal instillation of the fibrogenic antibiotic bleomycin in mice to induce pulmonary fibrosis, pulmonary hypertension, and RV failure within 2 wk...
August 19, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28822770/regulation-of-autoimmune-myocarditis-by-host-responses-to-the-microbiome
#5
Jobert G Barin, Monica V Talor, Nicola L Diny, SuFey Ong, Julie A Schaub, Elizabeth Gebremariam, Djahida Bedja, Guobao Chen, Hee Sun Choi, Xuezhou Hou, Lei Wu, Ashley B Cardamone, Daniel A Peterson, Noel R Rose, Daniela Čiháková
The extensive, diverse communities that constitute the microbiome are increasingly appreciated as important regulators of human health and disease through inflammatory, immune, and metabolic pathways. We sought to elucidate pathways by which microbiota contribute to inflammatory, autoimmune cardiac disease. We employed an animal model of experimental autoimmune myocarditis (EAM), which results in inflammatory and autoimmune pathophysiology and subsequent maladaptive cardiac remodeling and heart failure. Antibiotic dysbiosis protected mice from EAM and fibrotic cardiac dysfunction...
August 16, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28822746/outcomes-of-early-adolescent-donor-hearts-in-adult-transplant-recipients
#6
Shivank Madan, Snehal R Patel, Peter Vlismas, Omar Saeed, Sandhya Murthy, Stephen Forest, William Jakobleff, Daniel Sims, Jacqueline M Lamour, Daphne T Hsu, Julia Shin, Daniel Goldstein, Ulrich P Jorde
OBJECTIVES: This study sought to determine outcomes of adult recipients of early adolescent (EA) (10 to 14 years) donor hearts. BACKGROUND: Despite a shortage of donor organs, EA donor hearts (not used for pediatric patients) are seldom used for adults because of theoretical concerns for lack of hormonal activation and changes in left ventricular mass. Nonetheless, the outcomes of adult transplantation using EA donor hearts are not clearly established. METHODS: All adult (≥18 years of age) heart transplant recipients in the United Network for Organ Sharing database between April 1994 and September 2015 were eligible for this analysis...
August 3, 2017: JACC. Heart Failure
https://www.readbyqxmd.com/read/28822745/discordant-perceptions-of-prognosis-and-treatment-options-between-physicians-and-patients-with-advanced-heart-failure
#7
Amrut V Ambardekar, Jennifer T Thibodeau, Adam D DeVore, Michelle M Kittleson, Rhondalyn C Forde-McLean, Maryse Palardy, Maria M Mountis, Linda Cadaret, Jeffrey J Teuteberg, Salpy V Pamboukian, Rongbing Xie, Lynne W Stevenson, Garrick C Stewart
OBJECTIVES: This study assessed patient and physician perceptions of heart failure (HF) disease severity and treatment options. BACKGROUND: The prognosis for ambulatory patients with advanced HF on medical therapy is uncertain, yet has important implications for decision making regarding transplantation and left ventricular assist device (LVAD) placement. METHODS: Ambulatory patients with advanced HF (New York Heart Association functional class III to IV, Interagency Registry for Mechanically Assisted Circulatory Support profiles 4 to 7) on optimized medical therapy were enrolled across 11 centers...
August 3, 2017: JACC. Heart Failure
https://www.readbyqxmd.com/read/28822744/aldosterone-renin-cardiovascular-events-and-all-cause-mortality-among-african%C3%A2-americans-the-jackson-heart-study
#8
Joshua J Joseph, Justin B Echouffo-Tcheugui, Rita R Kalyani, Hsin-Chieh Yeh, Alain G Bertoni, Valery S Effoe, Ramon Casanova, Mario Sims, Wen-Chih Wu, Gary S Wand, Adolfo Correa, Sherita H Golden
OBJECTIVES: This study examined the association of aldosterone and plasma renin activity (PRA) with incident cardiovascular disease (CVD), using a composite endpoint of coronary heart disease, stroke, and/or heart failure and mortality among African Americans in the Jackson Heart Study. BACKGROUND: There is a paucity of data for the association of aldosterone and PRA with incident CVD or all-cause mortality among community-dwelling African Americans. METHODS: A total of 4,985 African American adults, 21 to 94 years of age, were followed for 12 years...
August 3, 2017: JACC. Heart Failure
https://www.readbyqxmd.com/read/28822743/medical-management-of-patients-with-a%C3%A2-left-ventricular-assist-device-for-the%C3%A2-non-left-ventricular-assist-device%C3%A2-specialist
#9
REVIEW
Adam D DeVore, Priyesh A Patel, Chetan B Patel
More than 2,400 continuous-flow left ventricular assist devices (LVADs) are implanted each year in the United States alone. Both the number of patients living with LVADs and the life expectancy of these patients are increasing. As a result, patients with LVADs are increasingly encountered by non-LVAD specialists who do not have training in managing advanced heart failure for general medical care, cardiovascular procedures, and other subspecialty care. An understanding of the initial evaluation and management of patients with LVADs is now an essential skill for many health care providers...
August 3, 2017: JACC. Heart Failure
https://www.readbyqxmd.com/read/28822726/recurrent-out-of-hospital-cardiac-arrest
#10
Ziad Nehme, Emily Andrew, Resmi Nair, Stephen Bernard, Karen Smith
BACKGROUND: Little is known about the burden of recurrent out-of-hospital cardiac arrest (OHCA) episodes in initial survivors of OHCA. We sought to investigate the frequency of recurrent OHCA, describe time-to-event trends, and establish baseline predictors of occurrence. METHODS: Between January 2000 and June 2015, we included consecutive OHCA survivors to hospital discharge from the Victorian Ambulance Cardiac Arrest Registry. Patient identifiers were used to match index and recurrent episodes of OHCA, and death records from a government database...
August 16, 2017: Resuscitation
https://www.readbyqxmd.com/read/28822714/cardiovascular-disease-leads-to-a-new-algorithm-for-diabetes-treatment
#11
REVIEW
Valentina Rodriguez, Matthew C Weiss, Howard Weintraub, Ira J Goldberg, Arthur Schwartzbard
Patients with diabetes mellitus have increased rates of atherosclerotic cardiovascular disease (CVD) and heart failure (HF). This increase occurs despite optimal lipid-lowering therapies. We reviewed clinical trials of diabetes treatments and their effects on circulating plasma lipoproteins and CVD. Several earlier studies failed to demonstrate clear CVD benefit from diabetes therapies. In addition, triglyceride-reducing agents did not reduce overall CVD in large clinical trials although these trials were not conducted in cohorts selected as hypertriglyceridemic...
July 22, 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/28822701/clinical-applications-of-biomarkers-in-atrial-fibrillation
#12
REVIEW
Kay-Won Chang, Jonathan C Hsu, Avinash Toomu, Sutton Fox, Alan S Maisel
While biomarkers have greatly impacted the diagnosis and management of myocardial infarction and heart failure, the use of biomarkers has been slow to permeate management of atrial fibrillation. Guideline recommendations on the use of biomarkers in atrial fibrillation were virtually non-existent until the 2016 European Society of Cardiology guidelines on atrial fibrillation offered a class IIb recommendation to consider using biomarkers such as high sensitivity troponin and natriuretic peptide to further refine stroke and bleeding risk in atrial fibrillation patients...
August 16, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28822689/cholesterol-lowering-gene-therapy-counteracts-the-development-of-non-ischemic-cardiomyopathy-in-mice
#13
Ilayaraja Muthuramu, Ruhul Amin, Andrey Postnov, Mudit Mishra, Joseph Pierre Aboumsallem, Tom Dresselaers, Uwe Himmelreich, Paul P Van Veldhoven, Olivier Gheysens, Frank Jacobs, Bart De Geest
A causal role of hypercholesterolemia in non-ischemic heart failure has never been demonstrated. Adeno-associated viral serotype 8 (AAV8)-low-density lipoprotein receptor (AAV8-LDLr) gene transfer was performed in LDLr-deficient mice without and with pressure overload induced by transverse aortic constriction (TAC). AAV8-LDLr gene therapy resulted in an 82.8% (p < 0.0001) reduction of plasma cholesterol compared with controls. Mortality rate was lower (p < 0.05) in AAV8-LDLr TAC mice compared with control TAC mice (hazard ratio for mortality 0...
August 1, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28822669/left-ventricular-lead-position-guided-by-parametric-strain-echocardiography-improves-response-to-cardiac-resynchronization-therapy
#14
Donato Mele, Marianna Nardozza, Michele Malagù, Emanuela Leonetti, Cristina Fragale, Antonio Rondinella, Roberto Ferrari, Matteo Bertini
BACKGROUND: There is still a significant proportion of patients with heart failure who fail to improve after cardiac resynchronization therapy (CRT). The investigators used parametric two-dimensional speckle-tracking echocardiography with polar plots of the amplitude and timing of left ventricular (LV) longitudinal strain to guide implantation of the LV lead, with the aim of increasing CRT response. METHODS: Sixty-four patients who underwent LV lead implantation guided by two-dimensional speckle-tracking echocardiography (study group) and 64 patients treated with standard CRT implantation (control group) were retrospectively analyzed in this study...
August 16, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28822659/incidence-and-risk-factors-of-groin-lymphocele-formation-after-venoarterial-extracorporeal-membrane-oxygenation-in-cardiogenic-shock-patients
#15
Michael Salna, Hiroo Takayama, Arthur R Garan, Paul Kurlansky, Maryjane A Farr, Paolo C Colombo, Thomas Imahiyerobo, Nicholas Morrissey, Yoshifumi Naka, Koji Takeda
OBJECTIVE: Venous-arterial extracorporeal membrane oxygenation (VA-ECMO) is a well-established therapy for refractory cardiopulmonary failure. Femoral cannulation offers a quick and effective means of providing circulatory support but is not without complication. Inflammation or lymphatic disruption at the site of cannulation can cause the formation of lymphoceles, leading to the patient's discomfort and possibly necessitating intervention. The purpose of this study was to evaluate the incidence of in-hospital lymphocele formation in VA-ECMO patients and to identify predictors for their development...
August 16, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28822655/a-national-vascular-quality-initiative-database-comparison-of-hybrid-and-open-repair-for-aortoiliac-femoral-occlusive-disease
#16
Marco Zavatta, Matthew W Mell
OBJECTIVE: We sought to analyze the outcomes of revascularization for aortoiliac-femoral occlusive disease by comparing hybrid repair by endovascular revascularization and open common femoral endarterectomy (ER-CFE) with open aortoiliac reconstruction and CFE (OR-CFE). METHODS: Using the national Society for Vascular Surgery Vascular Quality Initiative database from 2009 to 2015, we identified all patients receiving open or endovascular revascularization of the aortoiliac system and who additionally underwent CFE...
August 16, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28822652/do-heart-failure-clinics-have-to-reinvent-themselves-to-remain-germane
#17
EDITORIAL
Anique Ducharme
No abstract text is available yet for this article.
July 17, 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28822649/a-complex-heart-team-s-approach-to-a-patient-with-giant-cell-myocarditis
#18
Michal Pazdernik, Ivan Netuka, Jiri Maly, Jiri Kettner, Ludek Voska, Hynek Riha, Jan Pirk, Vojtech Melenovsky, Josef Kautzner
Giant cell myocarditis is known as a rare and frequently fatal type of myocarditis that is usually characterized by progressive congestive heart failure and frequent ventricular arrhythmias. We report a rare case of giant cell myocarditis in a 64-year-old previously healthy woman. The case was complicated by the rapid development of progressive acute heart failure, which required the comprehensive care of our heart team. Using a broad spectrum of therapeutic approaches, the patient successfully underwent heart transplantation...
June 10, 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28822531/cardio-oncology-a-new-subspecialty-with-collaboration-at-its-heart
#19
REVIEW
Arjun K Ghosh, J Malcolm Walker
Cardio-Oncology is the care of cancer patients with cardiovascular disease, overt or occult, already established or acquired during treatment. Cancer patients can present with a variety of cardiovascular problems not all of which are directly related to cancer therapy (medications or radiotherapy). The cardiovascular problems of oncology patients can range from ischaemia to arrhythmias and can also include valve problems and heart failure. As such, within cardiology, teamwork is required with members of different cardiology subspecialties...
July 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28822504/is-smog-innocuous-air-pollution-and-cardiovascular-disease
#20
EDITORIAL
Sundeep Mishra
Air pollution is a significant environmental and health hazard. Earlier studies had examined the adverse health effects associated with short- and long-term exposure to particulate matter on respiratory disease. However, later studies demonstrated that was actually cardiovascular disease that accounted for majority of mortality. Furthermore, it was not gaseous pollutants like oxides of nitrate, sulfur, carbon mono-oxide or ozone but the particulate matter or PM, of fine or coarse size (PM2.5 and PM10) which was linearly associated with mortality; PM2...
July 2017: Indian Heart Journal
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