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Atrial Fibrillation

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46 papers 0 to 25 followers
https://www.readbyqxmd.com/read/28228428/the-effect-of-aggressive-blood-pressure-control-on-the-recurrence-of-atrial-fibrillation-after-catheter-ablation-a-randomized-open-label-clinical-trial-substrate-modification-with-aggressive-blood-pressure-control-smac-af
#1
Ratika Parkash, George A Wells, John L Sapp, Jeffrey S Healey, Jean-Claude Tardif, Isabelle Greiss, Léna Rivard, Jean-Francois Roux, Lorne Gula, Isabelle Nault, Paul G Novak, David H Birnie, Andrew C Ha, Stephen B Wilton, Iqwal Mangat, Christopher J Gray, Martin J Gardner, Anthony S L Tang
Background -Radiofrequency catheter ablation for atrial fibrillation has become an important therapy for AF, however recurrence rates remain high. We proposed to determine whether aggressive blood pressure (BP) lowering prevents recurrent atrial fibrillation (AF) after catheter ablation in patients with AF and a high symptom burden. Methods -We randomly assigned 184 patients with AF and a BP greater than 130/80 mmHg to aggressive BP (target <120/80 mm Hg) or standard BP treatment (target <140/90 mmHg) prior to their scheduled AF catheter ablation...
February 22, 2017: Circulation
https://www.readbyqxmd.com/read/28185918/warfarin-use-and-the-risk-of-mortality-stroke-and-bleeding-in-hemodialysis-patients-with-atrial-fibrillation
#2
Brandon Kai, Yuliya Bogorad, Leigh-Ann N Nguyen, Su-Jau Yang, Wansu Chen, Hillard T Spencer, Albert Y-J Shen, Ming-Sum Lee
BACKGROUND: The optimal management of stroke prophylaxis in hemodialysis patients with atrial fibrillation is controversial. OBJECTIVE: The objectives of this study were to determine the risk of mortality, stroke, and bleeding associated with the use of warfarin in hemodialysis patients with atrial fibrillation. METHODS: This is a retrospective, population-based study of hemodialysis patients with atrial fibrillation between Jan 1, 2006 to Sept 30, 2015...
February 6, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28161513/the-burden-of-proof-the-current-state-of-atrial-fibrillation-prevention-and-treatment-trials
#3
Rosita Zakeri, David R Van Wagoner, Hugh Calkins, Tom Wong, Heather M Ross, E Kevin Heist, Timothy E Meyer, Peter R Kowey, Robert J Mentz, John G Cleland, Bertram Pitt, Faiez Zannad, Cecilia Linde
Atrial fibrillation (AF) is an age-related arrhythmia of enormous socio-economic significance. In recent years, our understanding of the basic mechanisms that initiate and perpetuate AF has evolved rapidly, catheter ablation of AF has progressed from concept to reality, and recent studies suggest lifestyle modification may help prevent AF recurrence. Emerging developments in genetics, imaging, and informatics also present new opportunities for personalised care. However considerable challenges remain. These include a paucity of studies examining AF prevention, modest efficacy of existing antiarrhythmic therapies, diverse ablation technologies and practice, and limited evidence to guide management in high-risk patients with multiple comorbidities...
February 1, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28166312/association-between-subclinical-cardiac-biomarkers-and-clinically-manifest-cardiac-diseases-with-cortical-cerebral-microinfarcts
#4
Saima Hilal, Yuek Ling Chai, Susanne van Veluw, Muhammad Amin Shaik, Mohammad Kamran Ikram, Narayanaswamy Venketasubramanian, Arthur Mark Richards, Geert Jan Biessels, Christopher Chen
Importance: Subclinical and clinical cardiac diseases have been previously linked to magnetic resonance imaging (MRI) manifestations of cerebrovascular disease, such as lacunes and white matter hyperintensities, as well as dementia. Cortical cerebral microinfarcts (CMIs), a novel MRI marker of cerebral vascular disease, have not been studied, to date, in relation to subclinical and clinical cardiac diseases. Objective: To examine the association of blood biomarkers of subclinical cardiac disease and clinically manifest cardiac diseases with CMIs graded on 3-T MRI in a memory clinic population...
February 6, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28151434/detection-of-atrial-fibrillation-episodes-using-a-wristband-device
#5
Valentina D A Corino, Rita Laureanti, Lorenzo Ferranti, Giorgio Scarpini, Federico Lombardi, Luca Mainardi
Undiagnosed atrial fibrillation (AF) patients are at high risk of cardioembolic stroke or other complications. The aim of this study was to analyze the blood volume pulse (BVP) signals obtained from a wristband device and develop an algorithm for discriminating AF from normal sinus rhythm (NSR) or from other arrhythmias (ARR). Thirty patients with AF, 9 with ARR and 31 in NSR were included in the study. The recordings were obtained at rest from Empatica E4 wristband device and lasted 10 minutes. The analysis, on a two-minute segment, included spectral, variability and irregularity analysis performed on the inter-diastolic interval series, and similarity analysis performed on the BVP signal...
February 2, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28110303/stroke-prevention-in-atrial-fibrillation
#6
Gregory Y H Lip
No abstract text is available yet for this article.
January 1, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28110309/close-connections-between-contraction-and-rhythm-a-new-genetic-cause-of-atrial-fibrillation-cardiomyopathy-and-what-it-can-teach-us
#7
EDITORIAL
Stanley Nattel
No abstract text is available yet for this article.
January 1, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28129965/genetic-risk-scores-for-atrial-fibrillation-do-they-improve-risk-estimation
#8
EDITORIAL
Henry D Huang, Dawood Darbar
No abstract text is available yet for this article.
December 14, 2016: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28104790/contemporary-management-of-patients-undergoing-atrial-fibrillation-ablation-in-hospital-and-1-year-follow-up-findings-from-the-esc-ehra-atrial-fibrillation-ablation-long-term-registry
#9
Elena Arbelo, Josep Brugada, Carina Blomström Lundqvist, Cécile Laroche, Josef Kautzner, Evgeny Pokushalov, Pekka Raatikainen, Michael Efremidis, Gerhard Hindricks, Alberto Barrera, Aldo Maggioni, Luigi Tavazzi, Nikolaos Dagres
AIMS: The ESC-EHRA Atrial Fibrillation Ablation Long-Term registry is a prospective, multinational study that aims at providing an accurate picture of contemporary real-world ablation for atrial fibrillation (AFib) and its outcome. METHODS AND RESULTS: A total of 104 centres in 27 European countries participated and were asked to enrol 20-50 consecutive patients scheduled for first and re-do AFib ablation. Pre-procedural, procedural and 1-year follow-up data were captured on a web-based electronic case record form...
January 18, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28028066/head-to-head-comparison-of-the-alivecor-heart-monitor-and-microlife-watchbp-office-afib-for-atrial-fibrillation-screening-in-a-primary-care-setting
#10
LETTER
Pak-Hei Chan, Chun-Ka Wong, Louise Pun, Yu-Fai Wong, Michelle Man-Ying Wong, Daniel Wai-Sing Chu, Chung-Wah Siu
No abstract text is available yet for this article.
January 3, 2017: Circulation
https://www.readbyqxmd.com/read/27933666/risk-of-stroke-and-recurrence-after-af-ablation-in-patients-with-an-initial-event-free-period-of-12-months
#11
Simon Kochhäuser, Pouria Alipour, Tanjah Haig-Carter, Kathleen Trought, Philip Hache, Yaariv Khaykin, Zaev Wulffhart, Alfredo Pantano, Bernice Tsang, David Birnie, Atul Verma
INTRODUCTION: Because of the unclear prognostic effects of ablation of atrial fibrillation (AF), oral anticoagulation (OAC) is often continued after ablation even in asymptomatic patients. We sought to determine the frequency of stroke and AF recurrence in patients on and off therapeutic OAC one year after a successful AF ablation. METHODS AND RESULTS: Patients that underwent AF ablation and were free of AF 12 months after ablation were selected from our AF database...
December 9, 2016: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/27705839/30-year-nationwide-trends-in-incidence-of-atrial-fibrillation-in-denmark-and-associated-5-year-risk-of-heart-failure-stroke-and-death
#12
Morten Schmidt, Sinna Pilgaard Ulrichsen, Lars Pedersen, Hans Erik Bøtker, Jens Cosedis Nielsen, Henrik Toft Sørensen
BACKGROUND: Long-term nationwide trends in atrial fibrillation (AF) incidence and 5-year outcomes are rare. METHODS: We conducted a population-based cohort study using the Danish National Patient Registry covering all Danish hospitals. We computed standardized incidence rates during 1983-2012. We used Cox regression to estimate hazard ratios (HRs) of heart failure, stroke, and death within 5years, comparing 5-year calendar periods with the earliest period (1983-1987) as reference...
December 15, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27825974/complexity-of-af-genetic-susceptibility-begets-complexity-of-interpretation
#13
EDITORIAL
Lee L Eckhardt, Jonathan C Makielski
No abstract text is available yet for this article.
February 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/27725286/stabilizing-ryanodine-receptor-gating-quiets-arrhythmogenic-events-in-human-heart-failure-and-atrial-fibrillation
#14
EDITORIAL
Donald M Bers
No abstract text is available yet for this article.
October 7, 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/27746384/role-of-ranolazine-in-the-prevention-and-treatment-of-atrial-fibrillation-a-meta-analysis-of-randomized-clinical-trials
#15
Mengqi Gong, Zhiwei Zhang, Nikolaos Fragakis, Panagiotis Korantzopoulos, Konstantinos P Letsas, Guangping Li, Gan-Xin Yan, Tong Liu
BACKGROUND: Randomized controlled trials (RCTs) on the use of ranolazine (RN) for prevention and cardioversion of atrial fibrillation (AF) have yielded conflicting results. OBJECTIVE: The purpose of this study was to conduct a meta-analysis of RCTs to examine the potential role of RN in the prevention and cardioversion of AF. METHODS: PubMed and EMBASE were searched until June 2016. Of 484 initially identified studies, 8 RCTs were finally analyzed...
January 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/27756707/unique-cardiomyocyte-ultrastructure-in-atria-role-of-t-tubules-in-subcellular-ca-2-signaling-and-atrial-arrhythmogenesis
#16
EDITORIAL
Dobromir Dobrev
No abstract text is available yet for this article.
October 15, 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/27756709/gain-of-function-mutations-in-gata6-lead-to-atrial-fibrillation
#17
Nathan R Tucker, Saagar Mahida, Jiangchuan Ye, Elizabeth J Abraham, Julie A Mina, Victoria A Parsons, Michael A McLellan, Marisa A Shea, Alan Hanley, Emelia J Benjamin, David J Milan, Honghuang Lin, Patrick T Ellinor
BACKGROUND: The genetic basis of atrial fibrillation (AF) and congenital heart disease remains incompletely understood. OBJECTIVE: We sought to determine the causative mutation in a family with AF, atrial septal defects, and ventricular septal defects. METHODS: We evaluated a pedigree with 16 family members, 1 with an atrial septal defect, 1 with a ventricular septal defect, and 3 with AF; we performed whole exome sequencing in 3 affected family members...
October 15, 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/27742809/a-frameshift-deletion-in-the-sarcomere-gene-myl4-causes-early-onset-familial-atrial-fibrillation
#18
Daniel F Gudbjartsson, Hilma Holm, Patrick Sulem, Gisli Masson, Asmundur Oddsson, Olafur Th Magnusson, Jona Saemundsdottir, Hafdis Th Helgadottir, Hannes Helgason, Hrefna Johannsdottir, Solveig Gretarsdottir, Sigurjon A Gudjonsson, Inger Njølstad, Maja-Lisa Løchen, Larry Baum, Ronald C W Ma, Gunnlaugur Sigfusson, Augustine Kong, Guðmundur Thorgeirsson, Jon Th Sverrisson, Unnur Thorsteinsdottir, Kari Stefansson, David O Arnar
AIMS: Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia in man, causing substantial morbidity and mortality with a major worldwide public health impact. It is increasingly recognized as a highly heritable condition. This study aimed to determine genetic risk factors for early-onset AF. METHODS AND RESULTS: We sequenced the whole genomes of 8453 Icelanders and imputed genotypes of the 25.5 million sequence variants we discovered into 1799 Icelanders with early-onset AF (diagnosed before 60 years of age) and 337 453 controls...
January 1, 2017: European Heart Journal
https://www.readbyqxmd.com/read/27650424/antiarrhythmic-effects-of-dantrolene-in-human-diseased-cardiomyocytes
#19
Nico Hartmann, Steffen Pabel, Jonas Herting, Felix Schatter, André Renner, Jan Gummert, Hanna Schotola, Bernhard C Danner, Lars S Maier, Norbert Frey, Gerd Hasenfuss, Thomas H Fischer, Samuel Sossalla
BACKGROUND: Cardiac type 2 ryanodine receptors (RyR2s) play a pivotal role in cellular electrophysiology and contractility. Increased RyR2-mediated diastolic sarcoplasmic reticulum (SR) Ca(2+) release is linked to heart failure (HF) and arrhythmias. Dantrolene, a drug used for the treatment of malignant hyperthermia, is known to stabilize RyRs in skeletal muscle. OBJECTIVE: The purpose of this study was to investigate the effects of dantrolene on arrhythmogenic triggers and contractile function in human atrial fibrillation (AF) and HF cardiomyocytes (CM)...
September 17, 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/27651389/the-search-for-the-tipping-point-on-when-to-anticoagulate-patients-with-atrial-fibrillation
#20
EDITORIAL
Hein Heidbuchel
No abstract text is available yet for this article.
September 20, 2016: Heart: Official Journal of the British Cardiac Society
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