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AF Stroke

Giovanni Filardo, Gorav Ailawadi, Benjamin D Pollock, Briget da Graca, Danielle M Sass, Teresa K Phan, Debbie E Montenegro, Vinod Thourani, Ralph Damiano
BACKGROUND: New-onset atrial fibrillation (AF) after coronary artery bypass graft surgery (CABG) is associated with increased morbidity and poorer long-term survival. Although many studies show differences in outcome in women versus men after CABG, little is known about the sex-specific incidence and characteristics of post-CABG AF. METHODS AND RESULTS: Overall, 11 236 consecutive patients without preoperative AF underwent isolated CABG from 2002 to 2010 at 4 US academic medical centers and 1 high-volume specialty cardiac hospital...
October 18, 2016: Circulation. Cardiovascular Quality and Outcomes
Steven Swiryn, Michael V Orlov, David G Benditt, John P DiMarco, Donald M Lloyd-Jones, Edward Karst, Fujian Qu, Mara T Slawsky, Melanie Turkel, Albert L Waldo
BACKGROUND: The RATE Registry (Registry of Atrial Tachycardia and Atrial Fibrillation Episodes) is a prospective, outcomes-oriented registry designed to document the prevalence of atrial tachycardia and/or fibrillation (AT/AF) of any duration in patients with pacemakers and implantable cardioverter defibrillators (ICDs) and evaluate associations between rigorously adjudicated AT/AF and predefined clinical events, including stroke. The appropriate clinical response to brief episodes of AT/AF remains unclear...
October 18, 2016: Circulation
Tsukasa Saito, Yuichiro Kawamura, Nobuyuki Sato, Naoyuki Hasebe
OBJECTIVE: Atrial fibrillation (AF) is a cardiac arrhythmia that does not infrequently induce ischemic strokes; however, little research has been reported on focal cerebral microangiopathic lesions in patients with AF. Recently cerebral microbleeds (CMBs) have been noticed for their potential implication in cerebral small vessel dis- ease. Therefore, we had 2 goals in the present study: (1) to compare the prevalence of CMBs in patients with AF with that in patients without AF, and (2) to prove that CMBs could be a clinical predictive factor for the development of future cerebral microangiopathy in patients with AF without a history of symptomatic cerebral infarction in a prospective manner...
September 2016: Journal of Hypertension
Giulia Renda, Fabrizio Ricci, Raffaele De Caterina
BACKGROUND: Non-vitamin K oral anticoagulants (NOACs) are now proven alternatives to vitamin K antagonists (VKAs) for stroke prevention in atrial fibrillation (AF). However, there are few data on the efficacy and safety of their use around cardioversion, where the risk of thromboembolic events is heightened. METHODS: We performed a random-effects meta-analysis of patients undergoing both electrical and pharmacological cardioversion for AF in the RE-LY, ROCKET-AF, ARISTOTLE, ENGAGE AF-TIMI 48, X-VeRT and ENSURE-AF trials...
October 14, 2016: American Journal of Medicine
Søren Due Andersen, Torben Bjerregaard Larsen, Anders Gorst-Rasmussen, Yousef Yavarian, Gregory Y H Lip, Flemming W Bach
BACKGROUND: Nearly one in 5 patients with ischemic stroke will invariably experience a second stroke within 5 years. Stroke risk stratification schemes based solely on clinical variables perform only modestly in non-atrial fibrillation (AF) patients and improvement of these schemes will enhance their clinical utility. Cerebral white matter hyperintensities are associated with an increased risk of incident ischemic stroke in the general population, whereas their association with the risk of ischemic stroke recurrence is more ambiguous...
October 18, 2016: Cerebrovascular Diseases
Peter Appelros, Maria Háls Berglund, Jakob O Ström
BACKGROUND: In the absence of active management, the stroke risk after a transient ischemic attack (TIA) may be high. Almost 10 years ago, the results of the EXPRESS and SOS-TIA studies called for a more rapid management of TIA patients. The purpose of this study was to investigate the other stroke risks in the longer term, after the implementation of a more active approach to TIA. We also wanted to assess the predictive value of the ABCD2 score in this context. METHODS: Riksstroke is the national stroke registry in Sweden...
October 18, 2016: Cerebrovascular Diseases
Joshua Xu, Jessica G Y Luc, Kevin Phan
Atrial fibrillation (AF) is the most prevalent cardiac arrhythmia in modern clinical practice, with an estimated prevalence of 1.5-2%. The prevalence of AF is expected to double in the next decades, progressing with age and increasingly becoming a global medical challenge. The first-line treatment for AF is often medical treatment with either rate control or anti-arrhythmic agents for rhythm control, in addition to anti-coagulants such as warfarin for stroke prevention in patient at risk. Catheter ablation has emerged as an alternative for AF treatment, which involves myocardial tissue lesions to disrupt the underlying triggers and substrates for AF...
September 2016: Journal of Thoracic Disease
Xavier Freixa, Laura Llull, Sameer Gafoor, Ignacio Cruz-Gonzalez, Samera Shakir, Heyder Omran, Sergio Berti, Gennaro Santoro, Joelle Kefer, Ulf Landmesser, Jens Erik Nielsen-Kudsk, Prapa Kanagaratnam, Fabian Nietlispach, Steffen Gloekler, Adel Aminian, Paolo Danna, Marco Rezzaghi, Friederike Stock, Miroslava Stolcova, Luis Paiva, Marco Costa, Xavier Millán, Reda Ibrahim, Tobias Tichelbäcker, Wolfgang Schillinger, Jai-Wun Park, Horst Sievert, Bernhard Meier, Apostolos Tzikas
Cardioembolic strokes are generally more lethal and disabling than other source of strokes. Data from PROTECT AF (Watchman Left Atrial Appendage Closure Technology for Embolic Protection in Patients With Atrial Fibrillation) suggest that strokes after left atrial appendage occlusion (LAAO) with the Watchman device are less disabling than those in the warfarin group. No data assessing the severity of strokes after LAAO with the AMPLATZER Cardiac Plug (ACP) are available. The objective of the study was to evaluate the severity of cerebrovascular events after LAAO with the ACP in a population mostly characterized by an absolute or relative contraindication to oral anticoagulation...
September 15, 2016: American Journal of Cardiology
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...
October 14, 2016: European Heart Journal
Laila Staerk, Emil Loldrup Fosbøl, Gregory Y H Lip, Morten Lamberts, Anders Nissen Bonde, Christian Torp-Pedersen, Brice Ozenne, Thomas Alexander Gerds, Gunnar Hilmar Gislason, Jonas Bjerring Olesen
BACKGROUND: Non-vitamin K antagonist (VKA) oral anticoagulants (NOACs) are widely used as stroke prophylaxis in non-valvular atrial fibrillation (AF), but comparative data are sparse. PURPOSE: To compare dabigatran, rivaroxaban, and apixaban vs. VKA and the risk of stroke/thromboembolism (TE) and intracranial bleeding in AF. METHODS: Using Danish nationwide registries (2011-15), anticoagulant-naïve AF patients were identified when initiating VKA or an NOAC...
October 14, 2016: European Heart Journal
Torsten Konrad, Sebastian Sonnenschein, Frank Patrick Schmidt, Hanke Mollnau, Karsten Bock, Blanca Quesada Ocete, Thomas Münzel, Cathrin Theis, Thomas Rostock
AIMS: Different cardiac arrhythmias have been suggested to be associated with Danon disease, e.g. Wolff-Parkinson-White syndrome. However, a systematic electrophysiological investigation of patients with Danon disease is lacking thus far. METHODS AND RESULTS: Seven patients with Danon disease (4 males, 35.8 ± 10.8 years; 3 females, 51.3 ± 19.9 years) from 3 different families were studied. In all patients, the presence of Danon disease was confirmed by western blot of biopsy material or genetic testing...
October 14, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
Fadar Oliver Otite, Priyank Khandelwal, Seemant Chaturvedi, Jose G Romano, Ralph L Sacco, Amer M Malik
OBJECTIVE: To evaluate trends in atrial fibrillation (AF) prevalence in acute ischemic stroke (AIS) and TIA in the United States. METHODS: We used the Nationwide Inpatient Sample to retrospectively compute weighted prevalence of AF in AIS (n = 4,355,140) and TIA (n = 1,816,459) patients admitted to US hospitals from 2004 to 2013. Multivariate-adjusted models were used to evaluate the association of AF with clinical factors, mortality, length of stay, and cost. RESULTS: From 2004 to 2013, AF prevalence increased by 22% in AIS (20%-24%) and by 38% in TIA (12%-17%)...
October 12, 2016: Neurology
Ngai-Yin Chan, Chi-Chung Choy
OBJECTIVE: The purpose of this study was to assess the feasibility of community screening for atrial fibrillation (AF) using a smartphone-based wireless single-lead ECG (SL-ECG) and to generate epidemiological data on the prevalence and risk factors of AF in Hong Kong. METHODS: In the period between 1 May 2014 to 30 April 2015, 13 122 Hong Kong citizens consented and voluntarily participated in a territory-wide community-based AF screening programme. RESULTS: 56 (0...
October 12, 2016: Heart: Official Journal of the British Cardiac Society
Maartje S Jacobs, Femke Kaasenbrood, Maarten J Postma, Marinus van Hulst, Robert G Tieleman
AIMS: Atrial fibrillation (AF) is the most common arrhythmia and prevalence increases with age. Patients with AF have a high risk of stroke, and screening for AF is recommended in all people aged 65 years or older to identify patients eligible for stroke prevention. A handheld, single-lead electrocardiogram (ECG) device can be used for systematic screening in the population at risk. The objective of this study is to estimate the cost-effectiveness of screening for AF in primary care with the MyDiagnostick(®) during seasonal influenza vaccination in the Netherlands...
October 12, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
Özcan Başaran, Osman Beton, Volkan Doğan, Mehmet Tekinalp, Ahmet Çağrı Aykan, Ezgi Kalaycıoğlu, İsmail Bolat, Onur Taşar, Özgen Şafak, Macit Kalçık, Mehmet Yaman, İbrahim Altun, Mustafa Özcan Soylu, Cevat Kırma, Murat Biteker
OBJECTIVE: Data regarding stroke prevention strategies in non-valvular atrial fibrillation (NVAF) are limited to vitamin K antagonists (VKAs). This study aimed to evaluate real-life stroke prevention strategies for NVAF patients in the era of non-VKA oral anticoagulants (NOACs). METHODS: We established a cross-sectional, multicenter, nationwide registry of NVAF patients. All consecutive atrial fibrillation (AF) patients and without mechanical heart valves or rheumatic mitral stenosis (but including those with any degree of mitral regurgitation) were enrolled in the ReAl-life Multicenter Survey Evaluating Stroke Prevention Strategies (RAMSES Study; ClinicalTrials...
October 2016: Anatolian Journal of Cardiology
Ken Okumura, Masatsugu Hori, Norio Tanahashi, A John Camm
Nonvalvular atrial fibrillation (AF) is a risk factor for stroke in elderly patients. Although warfarin has been used to prevent AF-associated stroke for more than 50 years, non-vitamin K antagonist oral anticoagulants (NOACs) including dabigatran, rivaroxaban, apixaban, and edoxaban recently have been developed to overcome the disadvantages of warfarin. Based on the results of NOAC clinical trials, Savelieva and Camm made recommendations regarding selection of NOACs in patients with nonvalvular AF. Recent accumulating evidence indicates that NOACs work differently in Asian and non-Asian individuals...
October 7, 2016: Clinical Cardiology
Francesco Pelliccia, Salvatore Rosanio, Giuseppe Marazzi, Sara Poggi, Alessandra Tanzilli, Cesare Greco, Carlo Gaudio, Giuseppe Rosano
The high risk of both stroke and major bleeding in atrial fibrillation (AF) patients with chronic kidney disease (CKD) defines an important population for whom the assessment of the balance between the risk of ischemic stroke and of bleeding is essential. The use of novel oral anticoagulants (NOACs) may be a viable option in this population due to their greater net clinical benefit than warfarin, as demonstrated by the results of the clinical phase III trials. NOACs have been found to have a greater net clinical benefit than warfarin in patients at high risk of either stroke (CHADS2≥1 or CHA2DS2-VASc score≥2) or bleeding (HAS-BLED≥3)...
October 1, 2016: International Journal of Cardiology
E R Wallace, D S Siscovick, C M Sitlani, S Dublin, P Mitchell, J A Robbins, H A Fink, J A Cauley, P Bůžková, L Carbone, Z Chen, S R Heckbert
: In this prospective cohort of 4462 older adults, incident atrial fibrillation (AF) was not statistically significantly associated with subsequent risk of incident fracture. INTRODUCTION: AF is associated with stroke, heart failure, dementia, and death, but its association with fracture is unknown. Therefore, we examined the association of incident AF with the risk of subsequent fracture in the Cardiovascular Health Study (CHS) cohort. METHODS: Of the CHS participants aged ≥65 years, 4462 were followed between 1991 and 2009, mean follow-up 8...
October 7, 2016: Osteoporosis International
Farah Z Dawood, Suzanne Judd, Virginia J Howard, Nita A Limdi, James F Meschia, Mary Cushman, George Howard, David M Herrington, Elsayed Z Soliman
The relation between inflammation and prothrombotic state in atrial fibrillation (AF) is well recognized. This suggests a potential role for high-sensitivity C-reactive protein (hs-CRP), a marker of systemic inflammation, in improving prediction of stroke in participants with AF. Cox proportional hazard analysis was used to examine the risk of stroke in 25,841 participants (40% black and 55% women) with and without AF who were enrolled in the Reasons for Geographic and Racial Differences in Stroke study from 2003 to 2007...
September 14, 2016: American Journal of Cardiology
Christian T Ruff, Robert P Giugliano, Eugene Braunwald, Sabina A Murphy, Karen Brown, Petr Jarolim, Michele Mercuri, Elliott M Antman, David A Morrow
Importance: Treatment decisions in atrial fibrillation (AF) are based on clinical assessment of risk. The CHA2DS2-VASc (cardiac failure or dysfunction, hypertension, age 65-74 [1 point] or ≥75 years [2 points], diabetes mellitus, and stroke, transient ischemic attack or thromboembolism [2 points]-vascular disease, and sex category [female]) risk score is pragmatic and widely used but has only moderate discrimination. Objective: To develop and test a cardiovascular biomarker score for indication of risk in patients with AF...
October 5, 2016: JAMA Cardiology
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