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Atrial fibrillation anticoagulant

Chi Zhang, Peizhe Zhang, Hongxia Li, Lianhua Han, Lei Zhang, Lei Zhang, Xiangjun Yang
OBJECTIVES: Dabigatran etexilate is widely used for stroke prevention in the patients with atrial fibrillation. The anticoagulation activity of dabigatran is not necessary monitored in routine clinical practice. We aimed to study the effect of dabigatran on thrombin generation (TG) and coagulation assays in rabbit and human plasma. METHODS: Rabbits received different concentrations of dabigatran etexilate (5 mg/kg, 10 mg/kg). Patients with atrial fibrillation took 110 mg dabigatran etexilate twice daily...
March 15, 2018: Thrombosis Research
Ali Yousif, Rajesh Samannan, Mazen Abu-Fadel
Acute renal artery embolism (RAE) is a rare condition associated with significant morbidity and mortality. The treatment strategy for RAE includes anticoagulation with or without thrombolysis or surgical or endovascular embolectomy. We describe here a case presentation of acute RAE secondary to atrial fibrillation treated successfully with Penumbra Indigo Aspiration System, a novel device in peripheral endovascular interventions. Our patient had ongoing symptoms and acute renal failure on presentation with contraindication to thrombolysis given hypertensive emergency...
January 1, 2018: Vascular and Endovascular Surgery
Daniele Pastori, José Miguel Rivera-Caravaca, María Asunción Esteve-Pastor, Vanessa Roldán, Francisco Marín, Pasquale Pignatelli, Francesco Violi, Gregory Y H Lip
BACKGROUND: Two risk scores have been developed to predict composite outcomes in atrial fibrillation (AF): the 2MACE and TIMI-AF scores. The aim of this study was to compare the predictive ability of these scores in 2 separate warfarin-treated cohorts (one 'real world', one clinical trial) of AF patients.Methods and Results:The 2MACE and TIMI-AF scores were calculated in the 'real-world' ATHERO-AF cohort (n=907), and in the randomized controlled AMADEUS trial (n=2,265). Endpoints were major adverse cardiovascular events (MACEs), net clinical outcomes (NCO) and a combination of them, namely "clinically relevant events" (CREs)...
March 16, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
Andrea Szegedi, Zoltán Csanádi
The significantly increased incidence of stroke and systemic embolisation caused by atrial fibrillation can be prevented by adequately adjusted anticoagulant therapy. Vitamin K antagonists effectively decrease the risk of thromboembolic events but this effect is influenced by many factors. The development of the new direct oral anticoagulant drugs (DOAC) in the last few years provided new opportunities for us to choose the suitable anticoagulant therapy. According to the results of the ENGAGE AF-TIMI 48 and ENSURE-AF multicenter, randomized trials, edoxaban, the recently introduced DOAC is equally effective as the traditional coumarin therapy, nevertheless, it ensures more tolerable anticoagulation for patients suffering from non-valvular atrial fibrillation...
March 2018: Orvosi Hetilap
Guangli Yin, Ruiqin Xie, Ling You, Hongning Yin, Yucui Sun, Jinglan Wu, Yansha Zhao, Xue Geng, Yanan Zhang
BACKGROUND: The conversion of atrial fibrillation (AF) to sinus rhythm is associated with transient dysfunction of the left atrium (LA). This study aimed to investigate the time course of LA function and inflammation after radiofrequency (RF) ablation for paroxysmal AF. METHODS: Fifty-three patients with paroxysmal AF undergoing RF ablation were recruited. White blood cells were counted and high-sensitivity C-reactive protein (hs-CRP), fibrinogen, and D-dimer levels were measured...
March 15, 2018: Journal of the Chinese Medical Association: JCMA
Jay Giri, Ashwin Nathan
No abstract text is available yet for this article.
March 8, 2018: JACC. Cardiovascular Interventions
Mathieu Kerneis, C Michael Gibson, Gerald Chi, Roxana Mehran, Fahad AlKhalfan, Usama Talib, Seyedmahdi Pahlavani, Mahshid Mir, Christoph Bode, Jonathan L Halperin, Tarek Nafee, Eric D Peterson, Freek W A Verheugt, Peter Wildgoose, Martin van Eickels, Gregory Y H Lip, Keith A A Fox, Marc Cohen
OBJECTIVES: This study sought to assess whether there were significant interactions of procedural access strategies and lesion characteristics with bleeding and ischemic events among atrial fibrillation (AF) patients anticoagulated with rivaroxaban or warfarin following a percutaneous coronary intervention. BACKGROUND: Among stented AF patients, the impact of procedural access strategies or lesion characteristics on antithrombotic safety and efficacy outcomes is unclear...
March 8, 2018: JACC. Cardiovascular Interventions
Janusz Bednarski, Paweł Balsam, Agata Tymińska, Krzysztof Ozierański, Katarzyna Żukowska, Martyna Zaleska, Katarzyna Szepietowska, Kacper Maciejewski, Michał Peller, Anna Praska-Oginska, Inna Zaboyska, Grzegorz Opolski
INTRODUCTION Atrial fibrillation (AF) is the most common cardiac arrhythmia with a significant risk of morbidity and mortality. Non-vitamin K antagonists (NOAC) are the first line drugs in stroke prevention in AF patients. The oral anticoagulation therapy (OAC) therapy may differ between medical centres. OBJECTIVES The study aimed to compare the clinical characteristic of AF patients treated with OAC between district and academic hospitals. PATIENTS AND METHODS This analysis consisted of 3528 patients from the multicentre, retrospective CRAFT study (NCT02987062): 2666 patients from academic hospital (Group A) and 862 patients from district hospital (Group B)...
March 17, 2018: Polish Archives of Internal Medicine
Hisao Otsuki, Junichi Yamaguchi, Kazuho Kamishima, Hiroyuki Arashi, Nobuhisa Hagiwara
Previous reports have focused on cardiovascular and bleeding events in patients with atrial fibrillation (AF) undergoing percutaneous coronary intervention (PCI). However, antithrombotic treatment strategies and clinical outcomes after second-generation drug-eluting stents (DES) implantation in AF patients remain to be determined. We enrolled 244 consecutive AF patients treated with second-generation DES. The study population was derived from multi-center AF registry (including 8 centers in Japan) from 2010 to 2012...
March 16, 2018: Heart and Vessels
Jaclyn Hirschey, Sunetra Bane, Moussa Mansour, Jodi Sperber, Stephen Agboola, Joseph Kvedar, Kamal Jethwani
BACKGROUND: Atrial fibrillation (AFib) is the most common form of heart arrhythmia and a potent risk factor for stroke. Nonvitamin K antagonist oral anticoagulants (NOACs) are routinely prescribed to manage AFib stroke risk; however, nonadherence to treatment is a concern. Additional tools that support self-care and medication adherence may benefit patients with AFib. OBJECTIVE: The aim of this study was to evaluate the perceived usability and usefulness of a mobile app designed to support self-care and treatment adherence for AFib patients who are prescribed NOACs...
March 15, 2018: JMIR Human Factors
Safi U Khan, Muhammad U Khan, Ali Raza Ghani, Ahmad N Lone, Adeel Arshad, Edo Kaluski
Current clinical practice prefers oral anticoagulation (OAC) plus dual antiplatelet therapy (DAPT) in atrial fibrillation (AF) after percutaneous coronary intervention (PCI). We conducted a meta-analysis to test the hypothesis that the superiority of OAC plus DAPT is mainly endorsed by observational studies (OSs); conversely, randomized clinical trials (RCTs) have suggested that OAC plus a single antiplatelet (SAP) agent is a safer and equally effective approach. Nine studies (4 RCTs and 5 OSs) were selected using MEDLINE, EMBASE, and CENTRAL (Inception, October 31, 2017)...
February 14, 2018: American Journal of Cardiology
Lisette Wintgens, Aleksandr Romanov, Karen Phillips, Gabriel Ballesteros, Martin Swaans, Richard Folkeringa, Ignacio Garcia-Bolao, Evgeny Pokushalov, Lucas Boersma
Aims: Long-term freedom from atrial fibrillation (AF) after catheter ablation (CA) and consequently the potential for stroke reduction remain unpredictable. Percutaneous left atrial appendage closure (LAAC) is an effective mechanical alternative to oral anticoagulation (OAC) for stroke prevention in AF patients. This study aims to evaluate long-term clinical results of combined CA and LAAC in one single procedure. Methods and results: Patients with non-valvular AF who underwent combined CA and LAAC procedure were included in the retrospective compilation of independent prospective general LAAC registries at the individual centres...
March 13, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
William F McIntyre, David Conen, Brian Olshansky, Jonathan L Halperin, Emil Hayek, Menno V Huisman, Gregory Y H Lip, Shihai Lu, Jeff S Healey
BACKGROUND: Antithrombotic prophylaxis with oral anticoagulation (OAC) substantially reduces stroke and mortality in patients with atrial fibrillation (AF). HYPOTHESIS: Analysis of data in GLORIA-AF, an international, observational registry of patients with newly-diagnosed AF, can identify factors associated with treatment decisions and outcomes. METHODS: Multivariable regression identified patient, physician, and temporal factors associated with OAC prescription, versus management with antiplatelet drugs or no antithrombotic drugs in North American patients enrolled between November 2011 and February 2014...
March 15, 2018: Clinical Cardiology
Cho-Kai Wu, Jyh-Ming Jimmy Juang, Jiun-Yang Chiang, Yi-Heng Li, Chia-Ti Tsai, Fu-Tien Chiang
Taiwanese heart registries for the main cardiovascular diseases have been conducted in the past 10 years, with the goal of examining the quality of cardiovascular patient care, which cannot be guaranteed by the universal Taiwan National Health Insurance. The results show suboptimal adherence to guideline recommendations. Door-to-balloon time and dual antiplatelet therapy use in acute coronary syndrome, standard medications for management of heart failure, low-density lipoprotein cholesterol levels in dyslipidemia, anticoagulant agent use in atrial fibrillation, and the understanding of sudden arrhythmia death syndrome were all found to be inadequate...
March 20, 2018: Journal of the American College of Cardiology
Alexander Buchholz, Laura Ueberham, Kaja Gorczynska, Borislav Dinov, Sebastian Hilbert, Nikolaos Dagres, Daniela Husser, Gerhard Hindricks, Andreas Bollmann
BACKGROUND: Apixaban is a non-vitamin K oral anticoagulant and has been approved for prevention of stroke and systemic embolism in patients with non-valvular atrial fibrillation (AF). Current labelling recommends dose reduction based on patients age, weight and renal function. OBJECTIVES: The aim of this study was to analyze adherence to current labeling instructions concerning initial apixaban dosing in clinical practice and to identify factors associated with inappropriate dose reduction...
March 15, 2018: Clinical Cardiology
Sylvie Perreault, Payman Shahabi, Robert Côté, Stéphanie Dumas, Étienne Rouleau-Mailloux, Yassamin Feroz Zada, Sylvie Provost, Ian Mongrain, Marc Dorais, Thao Huynh, Simon Kouz, Ariel Diaz, Mark Blostein, Simon de Denus, Jacques Turgeon, Jeffrey Ginsberg, Jacques Lelorier, Lyne Lalonde, Lambert Busque, Jeannine Kassis, Mario Talajic, Jean-Claude Tardif, Marie-Pierre Dubé
BACKGROUND: Over- and under-coagulation with warfarin is associated with hemorrhagic and thromboembolic events, respectively. Genetic and clinical factors affect warfarin response, and the causes of this variability remain unclear. We present descriptive statistics and test for predictors of poor anticoagulation control. METHODS: The Quebec Warfarin Cohort (QWC) comprises 1,059 new warfarin users, with prospective follow up using telephone questionnaires every 3 months for one year, and using healthcare administrative databases (RAMQ and Med-Echo) for 5-year prior to cohort entry and up to 10-years following active patient participation...
March 15, 2018: Clinical Cardiology
Arnaud Bisson, Alexandre Bodin, Nicolas Clementy, Anne Bernard, Dominique Babuty, Gregory Y H Lip, Laurent Fauchier
AIMS: We compared thromboembolic (TE) and bleeding risks in patients with atrial fibrillation (AF) according to the new 'Evaluated Heartvalves, Rheumatic or Artificial' (EHRA) valve classification. METHODS: Patients were divided into 3 categories: (i) EHRA type 1 corresponds to the previous 'valvular' AF patients, with either rheumatic mitral valve stenosis or mechanical prosthetic heart valves; (ii) EHRA type 2 includes AF patients with other valvular heart disease (VHD) and valve bioprosthesis or repair; and (iii) 'non-VHD controls' i...
March 7, 2018: International Journal of Cardiology
Hein Heidbuchel, Nikolaos Dagres, Matthias Antz, Karl-Heinz Kuck, Patrice Lazure, Suzanne Murray, Céline Carrera, Gerhard Hindricks, Alec Vahanian
Aims: Guideline-adherent treatment is associated with improved prognosis in atrial fibrillation (AF) patients but is insufficiently implemented in clinical practice. The European Society of Cardiology (ESC) performed a multinational educational needs assessment study among cardiologists, general practitioners/family physicians (GPs/FPs), and neurologists in order to evaluate knowledge and skills of physicians and system factors related to AF care delivery. Methods and results: A total of 561 physicians (294 cardiologists, 131 neurologists, and 136 GPs/FPs) from six European countries participated...
March 12, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
Paolo Di Giosia, Paolo Giorgini, Claudio Ferri
No abstract text is available yet for this article.
February 2018: Journal of Cardiovascular Medicine
Francesca Muscente, Gerda Tautermann, Raffaele De Caterina
No abstract text is available yet for this article.
February 2018: Journal of Cardiovascular Medicine
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