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Atrial fibrilation

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https://www.readbyqxmd.com/read/29458135/porcine-heart-interatrial-septum-anatomy
#1
Mateusz K Hołda, Mateusz Koziej, Katarzyna Piątek, Wiesława Klimek-Piotrowska
BACKGROUND: The left-sided atrial septal pouch (SP), a recently re-discovered anatomical structure within the human interatrial septum, has emerged as a possible source of thrombi formation and a trigger for atrial fibrillation, thereby potentially increasing the risk for ischemic stroke. In many studies, the swine interatrial septum has been used as model of the human heart. Also, possible new strategies and devices for management of the SPs may first be tested in this pig model. Therefore, in this study, we aimed to evaluate swine interatrial septum morphology and to compare it with the human analog, especially in the light of SP occurrence...
February 16, 2018: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/29458056/alcohol-and-cv-health-jekyll-and-hyde-j-curves
#2
REVIEW
Evan L O'Keefe, James J Di Nicolantonio, James H O'Keefe, Carl J Lavie
A routine of light or moderate alcohol consumption (≤1 drink/day for women and 1 to 2 drinks/day for men) were associated with a lower risk for all-cause mortality, coronary artery disease (CAD), type 2 diabetes mellitus (T2D), heart failure (HF), and stroke. Conversely, heavy drinking, (>4 drinks/day) is associated with an increased risk for death and cardiovascular (CV) disease (CVD). Excessive alcohol intake trails behind only smoking and obesity among the 3 leading causes of premature deaths in the United States (US)...
February 16, 2018: Progress in Cardiovascular Diseases
https://www.readbyqxmd.com/read/29457840/population-pharmacokinetics-and-pharmacogenomics-of-apixaban-in-japanese-adult-patients-with-atrial-fibrillation
#3
Satoshi Ueshima, Daiki Hira, Yuuma Kimura, Ryo Fujii, Chiho Tomitsuka, Takuya Yamane, Yohei Tabuchi, Tomoya Ozawa, Hideki Itoh, Seiko Ohno, Minoru Horie, Tomohiro Terada, Toshiya Katsura
AIMS: This study aimed to analyse the effects of genetic polymorphisms in drug transporters and metabolising enzymes, and clinical laboratory data on the pharmacokinetic parameters of apixaban. METHODS: Data were collected from 81 Japanese patients with atrial fibrillation. Pharmacogenomic data were stratified by ABCB1, ABCG2, and CYP3A5 polymorphisms. The pharmacokinetic profile of apixaban was described by a one-compartment model with first-order absorption. Population pharmacokinetic analysis was conducted using non-linear mixed effect modelling (NONMEM™) program...
February 19, 2018: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29457358/crt-survey-ii-a-european-society-of-cardiology-survey-of-cardiac-resynchronisation-therapy-in-11-088-patients-who-is-doing-what-to-whom-and-how
#4
Kenneth Dickstein, Camilla Normand, Angelo Auricchio, Nigussie Bogale, John G Cleland, Anselm K Gitt, Christoph Stellbrink, Stefan D Anker, Gerasimos Filippatos, Maurizio Gasparini, Gerhard Hindricks, Carina Blomström Lundqvist, Piotr Ponikowski, Frank Ruschitzka, Giovanni Luca Botto, Alan Bulava, Gabor Duray, Carsten Israel, Christophe Leclercq, Peter Margitfalvi, Óscar Cano, Chris Plummer, Nedim Umutay Sarigul, Maciej Sterlinski, Cecilia Linde
BACKGROUND: Cardiac resynchronisation therapy (CRT) reduces morbidity and mortality in appropriately selected patients with heart failure and is strongly recommended for such patients by guidelines. A European Society of Cardiology (ESC) CRT survey conducted in 2008-2009 showed considerable variation in guideline adherence and large individual, national and regional differences in patient selection, implantation practice and follow-up. Accordingly, two ESC associations, the European Heart Rhythm Association and the Heart Failure Association, designed a second prospective survey to describe contemporary clinical practice regarding CRT...
February 19, 2018: European Journal of Heart Failure
https://www.readbyqxmd.com/read/29457323/anticoagulation-knowledge-in-patients-with-atrial-fibrillation-an-australian-survey
#5
Kehinde O Obamiro, Leanne Chalmers, Kenneth Lee, Bonnie J Bereznicki, Luke R E Bereznicki
BACKGROUND: Atrial fibrillation (AF) is the most commonly diagnosed arrhythmia in clinical practice, and is associated with a significant medical and economic burden. Anticoagulants reduce the risk of stroke and systemic embolism by approximately two-thirds compared with no therapy. Knowledge regarding anticoagulant therapy can influence treatment outcomes in patients with AF. OBJECTIVE: To measure the level of anticoagulation knowledge in patients with AF taking oral anticoagulants (OACs), investigate the association between patient-related factors and anticoagulation knowledge, and compare these results in patients taking warfarin and direct-acting oral anticoagulant (DOACs)...
February 19, 2018: International Journal of Clinical Practice
https://www.readbyqxmd.com/read/29457264/comparison-of-left-atrial-size-and-function-in-hypertrophic-cardiomyopathy-and-in-fabry-disease-with-left-ventricular-hypertrophy
#6
María Cristina Saccheri, Tomás Francisco Cianciulli, Wilde Challapa Licidio, Jorge A Lax, Martín A Beck, Luis A Morita, Juan A Gagliardi
BACKGROUND: Fabry disease (FD) and hypertrophic cardiomyopathy (HCM) are two diseases with a different pathophysiology, both cause left ventricular hypertrophy (LVH) and myocardial fibrosis. Although remodeling and systolic dysfunction of the left atrium (LA) are associated with atrial fibrillation and stroke in HCM, changes in the size and function of the LA have not been well studied in FD with LVH. METHODS: The following groups were studied prospectively, and their respective findings compared: 19 patients with non-obstructive HCM (Group I), 20 patients with a diagnosis of Fabry cardiomyopathy (Group II), and 20 normal subjects matched for sex and age (Group III)...
February 19, 2018: Echocardiography
https://www.readbyqxmd.com/read/29457260/prediction-of-postoperative-atrial-fibrillation-with-left-atrial-mechanical-functions-and-nt-pro-anp-levels-after-coronary-artery-bypass-surgery-a-three-dimensional-echocardiography-study
#7
Şiho Hidayet, Julide Yağmur, Adil Bayramoğlu, M Hakan Taşolar, Ertuğrul Kurtoğlu, Fatma Özyalın
OBJECTIVE: Postoperative AF (POAF) is the most common cause of morbidity after coronary artery bypass surgery. In this study, we aimed to show the relationship between POAF and N-terminal pro-atrial natriuretic peptide (NT-pro ANP) levels and the relationship between mechanical functions and left atrial volume measured using preoperative three-dimensional echocardiography (3D ECHO) among patients that will undergo isolated coronary artery bypass grafting (CABG) in elective conditions...
February 19, 2018: Echocardiography
https://www.readbyqxmd.com/read/29456047/catheter-versus-surgical-ablation-of-atrial-fibrillation-an-analysis-of-outcomes
#8
REVIEW
Menachem M Weiner, Elvera L Baron, Kamal Joshi, Pedro Villablanca, David Briceno, Gianluca Torregrossa, Adam S Evans, Yianni Augoustides, Harish Ramakrishna
No abstract text is available yet for this article.
January 31, 2018: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29455950/sex-differences-in-atrial-fibrillation
#9
REVIEW
Jason G Andrade, Marc W Deyell, Andrea Y K Lee, Laurent Macle
Atrial fibrillation (AF) is a chronic progressive disease characterized by exacerbations and remissions. It remains the most common sustained arrhythmia seen in clinical practice, and represents a major burden to health care systems. Similar to other cardiovascular conditions, significant sex-specific differences have been observed in the epidemiology (lower rate of prevalence in women, women present at a later age), pathophysiology (sex-related differences in AF triggers and substrate), clinical presentation (women are more likely symptomatic, with relatively more severe symptoms), and natural history...
December 6, 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/29455789/geographical-variation-in-the-clinical-presentation-of-endomyocardial-fibrosis-in-india
#10
Prabha Nini Gupta, Subair M Kunju, Baiju Rajan, A George Koshy, Sunitha Vishwanathan, Preeti Sara George, Praveen Velappan
OBJECTIVES: To compare the clinical presentation, clinical profile and survival of two groups of endomyocardial fibrosis patients. METHODS: The study was a prospective cohort study, or a prospective case series, comparing all consecutive echocardiographically proven patients with endomyocardial fibrosis seen in Medical College Trivandrum with the patients seen in Medical College Hospital, Alappuzha(Alleppey) (or TD Medical College). In all patients the clinical details like age, sex, type of endomyocardial fibrosis, the presence of anaemia, eosinophilia, neutrophilia and type of rhythm(Sinus or atrial fibrillation) etc were compared by both simple X2 and by Kaplan Meier survival curves...
January 2018: Indian Heart Journal
https://www.readbyqxmd.com/read/29455785/esophageal-positions-relative-to-the-left-atrium-data-from-293-patients-before-catheter-ablation-of-atrial-fibrillation
#11
Zdenek Starek, Frantisek Lehar, Jiri Jez, Martin Scurek, Jiri Wolf, Tomas Kulik, Alena Zbankova
AIMS: Three-dimensional rotational angiography (3DRA) of the left atrium (LA) and the esophagus is a simple and safe method for analyzing the relationship between the esophagus and the LA during catheter ablation of atrial fibrillation. The purpose of this study is to describe the location of the esophagus relative to the LA and mobility of the esophagus during ablation procedure. METHODS: From 3/2011 to 9/2015, 3DRA of the LA and esophagus was performed in 326 patients before catheter ablation of atrial fibrillation...
January 2018: Indian Heart Journal
https://www.readbyqxmd.com/read/29455405/bariatric-surgery-in-patients-on-chronic-anticoagulation-therapy
#12
Gautam Sharma, Zubaidah Nor Hanipah, Ali Aminian, Suriya Punchai, Emre Bucak, Philip R Schauer, Stacy A Brethauer
BACKGROUND: Perioperative management of chronically anti-coagulated patients undergoing bariatric surgery requires a balance of managing hemorrhagic and thromboembolic risks. The aim of this study is to evaluate the incidence of hemorrhagic complications and their management in chronically anticoagulated (CAT) patients undergoing bariatric surgery. METHODS: A retrospective review of CAT patients undergoing bariatric surgery at an academic center from 2008 to 2015 was studied...
February 17, 2018: Obesity Surgery
https://www.readbyqxmd.com/read/29454773/relationship-between-left-atrial-functional-measures-and-incident-atrial-fibrillation-in-the-general-population-the-copenhagen-city-heart-study
#13
Flemming J Olsen, Rasmus Møgelvang, Gorm B Jensen, Jan S Jensen, Tor Biering-Sørensen
OBJECTIVES: This study sought to investigate whether left atrial (LA) functional measures predict atrial fibrillation (AF) in the general population. BACKGROUND: Increasing evidence suggests LA functional measures are predictors of AF in several patient groups. METHODS: In a community-based cohort study, approximately 2,000 individuals underwent a transthoracic echocardiogram. Conventional echocardiographic measures and extended LA measures, including the minimal and maximal LA volumes (LAVmin and LAVmax , respectively) and left atrial emptying fraction (LAEF), were performed...
February 9, 2018: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29454666/right-atrium-enlargement-predicts-clinically-significant-supraventricular-arrhythmia-in-patients-with-pulmonary-arterial-hypertension
#14
Marcin Waligóra, Anna Tyrka, Tomasz Miszalski-Jamka, Małgorzata Urbańczyk-Zawadzka, Piotr Podolec, Grzegorz Kopeć
BACKGROUND: Right atrial (RA) enlargement is a common finding in patients with pulmonary arterial hypertension (PAH) and an important predictor of mortality, however its relation to the risk of atrial arrhythmias has not been assessed. OBJECTIVES: To assess whether RA enlargement is associated with supraventricular arrhythmias (SVA) and whether it predicts new clinically significant SVA (csSVA). METHODS: Patients with PAH were recruited between January 2010 and December 2014 and followed until January 2017...
February 14, 2018: Heart & Lung: the Journal of Critical Care
https://www.readbyqxmd.com/read/29454582/predictors-and-outcomes-of-cardiac-surgery-associated-delirium-a-single-centre-retrospective-cohort-study
#15
Daryl Jones, George Matalanis, Johan Mårtensson, Raymond Robbins, Margaret Shaw, Siven Seevanayagam, Dean Cowie, Rinaldo Bellomo
BACKGROUND: The predictors and independent outcome association of delirium after cardiac surgery are important and yet poorly characterised. METHODS: We performed a retrospective observational study of cardiac surgery patients between January 2009 and March 2016. We defined delirium using ICD-10 diagnostic codes. Multivariable analysis was conducted to find independent associations between baseline variables, delirium, and key clinical outcomes. RESULTS: We studied 2447 study patients (28...
February 8, 2018: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29454558/clinical-characteristics-and-management-of-patients-with-atrial-fibrillation-treated-with-direct-oral-anticoagulants-according-to-blood-pressure-control
#16
M de la Figuera, S Cinza, I Egocheaga, N Marín, M A Prieto
OBJECTIVE: To determine the clinical characteristics and management of hypertensive patients with nonvalvular atrial fibrillation (AF) treated with direct oral anticoagulants (DOACs) according to blood pressure (BP) control. METHODS: For this purpose, data from two observational, cross-sectional and multicenter studies were combined. In both studies, patients on chronic treatment with anticoagulants and that were on current treatment with DOACs at least for 3 months were included...
February 14, 2018: Hipertensión y Riesgo Vascular
https://www.readbyqxmd.com/read/29454549/technology-advances-to-improve-response-to-cardiac-resynchronization-therapy-what-clinicians-should-know
#17
Angelo Auricchio, Ward A Heggermont
Cardiac resynchronization therapy (CRT) is a well-established treatment for symptomatic heart failure patients with reduced left ventricular ejection fraction, prolonged QRS duration, and abnormal QRS morphology. The ultimate goals of modern CRT are to improve the proportion of patients responding to CRT and to maximize the response to CRT in patients who do respond. While the rate of CRT nonresponders has moderately but progressively decreased over the last 20 years, mostly in patients with left bundle branch block, in patients without left bundle branch block the response rate is almost unchanged...
February 14, 2018: Revista Española de Cardiología
https://www.readbyqxmd.com/read/29453694/percutaneous-left-atrial-appendage-occlusion-in-the-prevention-of-stroke-in-atrial-fibrillation-a-systematic-review
#18
REVIEW
Jayson R Baman, Moussa Mansour, E Kevin Heist, David T Huang, Yitschak Biton
Atrial fibrillation is commonly coexistent with heart failure, and the management of the heart failure patient would be incomplete without an appreciation for atrial fibrillation management. There are many complications associated with oral anticoagulation in the prevention of stroke related to atrial fibrillation. In recent years, the advent of several percutaneous left atrial appendage (LAA) occlusion/closure strategies has sought to provide an alternative treatment modality. Here, we systematically review the published literature to investigate the efficacy and safety of percutaneous LAA occlusion/closure devices...
February 17, 2018: Heart Failure Reviews
https://www.readbyqxmd.com/read/29453674/contrast-enhanced-ultrasonography-of-post-interventional-hematoma-the-bleeding-mushroom-is-growing-inside
#19
Francesca Di Vece, Paola Tombesi, Lara Bianchi, Matteo Bertini, Sergio Sartori
Catheter ablation is an effective treatment in patients with symptomatic atrial fibrillation. Complications are infrequent and usually resolve with minimal or no intervention, but active bleeding due to arterial injury during the vascular access can sometimes represent a life-threatening complication. Contrast-enhanced computed tomography is the standard technique to detect active bleeding, but it may not be immediately available. We report a case of iatrogenic hemorrhage after catheter ablation, in which contrast-enhanced ultrasonography played a decisive role in the recognition of active arterial bleeding due to injury to the right common femoral artery...
February 16, 2018: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29453615/vidarabine-an-anti-herpesvirus-agent-prevents-catecholamine-induced-arrhythmias-without-adverse-effect-on-heart-function-in-mice
#20
Kenji Suita, Takayuki Fujita, Wenqian Cai, Yuko Hidaka, Huiling Jin, Rajesh Prajapati, Masanari Umemura, Utako Yokoyama, Motohiko Sato, Björn C Knollmann, Satoshi Okumura, Yoshihiro Ishikawa
Sympathetic activation causes clinically important arrhythmias including atrial fibrillation (AF) and ventricular tachyarrhythmia. Although the usefulness of β-adrenergic receptor blockade therapy is widely accepted, its multiple critical side effects often prevent its initiation or continuation. The aim of this study is to determine the advantages of vidarabine, an adenylyl cyclase (AC)-targeted anti-sympathetic agent, as an alternative treatment for arrhythmia. We found that vidarabine, which we identified as a cardiac AC inhibitor, consistently shortens AF duration and reduces the incidence of sympathetic activation-induced ventricular arrhythmias...
February 16, 2018: Pflügers Archiv: European Journal of Physiology
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