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Atrial fibrillation

Kensuke Ihara, Koji Sugiyama, Kentaro Takahashi, Masahiro Yamazoe, Tetsuo Sasano, Tetsushi Furukawa
Recent genome-wide association studies targeting atrial fibrillation (AF) have indicated a strong association between the genotype and electrophysiological phenotype in the atria. That encourages us to utilize a genetically-engineered mouse model to elucidate the mechanism of AF. However, it is difficult to evaluate the electrophysiological properties in murine atria due to their small size. This protocol describes the electrophysiological evaluation of atria using an optical mapping system with a high temporal and spatial resolution in Langendorff perfused murine hearts...
February 22, 2018: Journal of Visualized Experiments: JoVE
Kumar Mukherjee, Khalid M Kamal
Background Atrial fibrillation is a significant risk factor for ischemic stroke and increases cost of treatment. Aims To estimate the incremental inpatient cost and length of stay due to atrial fibrillation among adults hospitalized with a primary diagnosis of ischemic stroke after controlling for sociodemographic, clinical, and hospital characteristics in a nationally representative discharge record of US population. Methods Hospital discharge records with a primary diagnosis of ischemic stroke were identified from the National Inpatient Sample data for the years 2010-2013...
January 1, 2018: International Journal of Stroke: Official Journal of the International Stroke Society
Yukio Abe, Kanako Akamatsu, Kazato Ito, Yoshiki Matsumura, Kenji Shimeno, Takahiko Naruko, Yosuke Takahashi, Toshihiko Shibata, Minoru Yoshiyama
BACKGROUND: We investigated the prevalence and prognostic significance of functional mitral regurgitation (MR) and tricuspid regurgitation (TR) in patients with atrial fibrillation (AF) and preserved left ventricular ejection fraction (LVEF).Methods and Results:We retrospectively studied the cases of 11,021 consecutive patients who had undergone transthoracic echocardiography. AF appeared in 1,194 patients, and we selected 298 with AF and LVEF ≥50% but without other underlying heart diseases...
March 16, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
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
Signe S Risom, Johanne Lind, Pamela J McCabe, Selina Kikkenborg Berg
Purpose: The CopenHeartRFA trial was designed and conducted to explore the effects of rehabilitation on patients treated with ablation for atrial fibrillation (AF). It included a cardiac rehabilitation program consisting of physical exercise and psychoeducational consultations over 6 months. As part of the evaluation of the CopenHeartRFA trial, both quantitative and qualitative data were collected. The intervention was delivered by a multidisciplinary team. Aim: This study aimed to understand the experience of patients treated for AF with ablation who participated in the CopenHeartRFA cardiac rehabilitation program...
2018: Journal of Multidisciplinary Healthcare
Wi Jin Kim, Georgios Zenonos, Michael M McDowell, Paul A Gardner, Johnathan A Engh
No abstract text is available yet for this article.
March 15, 2018: World Neurosurgery
Cagdas Baran, Mustafa Serkan Durdu, Fatih Gumus, Mehmet Cakici, Mustafa Bahadir Inan, Mustafa Sirlak, Ahmet Ruchan Akar
OBJECTIVES: Sutureless aortic valve replacement (SU-AVR) is an alternative technique to standard aortic valve replacement. We evaluated our experience with the Perceval SU-AVR with concomitant mitral valve surgery, with or without tricuspid valve surgery, and aimed to discuss the technical considerations. METHODS: From January 2013 through June 2016, 30 patients with concomitant severe mitral valve disease, with or without tricuspid valve disease, underwent SU-AVR with the Perceval prosthesis in a single center...
February 21, 2018: Journal of Thoracic and Cardiovascular Surgery
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
Tomonori Watanabe, Shinsuke Miyazaki, Takatsugu Kajiyama, Sadamitsu Ichijo, Takamitsu Takagi, Miyako Igarashi, Hiroaki Nakamura, Hiroshi Taniguchi, Hitoshi Hachiya, Yoshito Iesaka
Persistent iatrogenic atrial septal defects (iASDs) can be observed after intervention requiring a left atria (LA) access, including pulmonary vein isolation (PVI) of atrial fibrillation (AF). We investigated the incidence of iASDs post-second-generation cryoballoon ablation and the pre-procedural predictors. Eighty-three paroxysmal AF patients underwent PVI using second-generation cryoballoons. The LA was accessed with single 15-Fr steerable sheaths following a radiofrequency transseptal puncture, and the iASD was evaluated with transthoracic echocardiography (TTE), a median of 9...
March 17, 2018: Heart and Vessels
Renate B Schnabel, Ladislav Pecen, Daniel Engler, Markus Lucerna, Jean Marc Sellal, Francisco M Ojeda, Raffaele De Caterina, Paulus Kirchhof
OBJECTIVES: Determinants of atrial fibrillation (AF) patterns and of progression of earlier forms to permanent AF, and their relationship with outcome are still poorly understood. METHODS: We examined AF patterns (paroxysmal, persistent and permanent), rate and predictors of AF progression, and outcomes in the PREFER (PREvention oF thromboembolic events-European Registry) in AF. The primary analysis was performed in the PREFER in AF prolongation dataset (n=3223 patients with AF with a complete 1-year follow-up, mean age 72±9 years, 40% women)...
March 17, 2018: Heart: Official Journal of the British Cardiac Society
Benjamin D Bray, Lizz Paley, Alex Hoffman, Martin James, Patrick Gompertz, Charles D A Wolfe, Harry Hemingway, Anthony G Rudd
BACKGROUND: We aimed to estimate socioeconomic disparities in the incidence of hospitalisation for first-ever stroke, quality of care, and post-stroke survival for the adult population of England. METHODS: In this cohort study, we obtained data collected by a nationwide register on patients aged 18 years or older hospitalised for first-ever acute ischaemic stroke or primary intracerebral haemorrhage in England from July 1, 2013, to March 31, 2016. We classified socioeconomic status at the level of Lower Super Output Areas using the Index of Multiple Deprivation, a neighbourhood measure of deprivation...
March 14, 2018: Lancet. Public Health
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
Chen Chen, Xinbin Zhou, Min Zhu, Shenjie Chen, Jie Chen, Hongwen Cai, Jin Dai, Xiaoming Xu, Wei Mao
PURPOSE: The superiority of catheter ablation (CA) for persistent (and long-standing persistent) atrial fibrillation (AF) is currently not well defined. We performed a meta-analysis of randomized controlled trials (RCTs) to assess the clinical outcomes of CA compared with medical therapy in persistent AF patients. METHODS: We systematically searched PubMed, EMBASE, the Cochrane Library, and for RCTs comparing CA with medical therapy in patients with persistent AF...
March 16, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
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
Florence Dive, Jean-Benoit le Polain de Waroux, Sophie Pierard, Geoffrey C Colin
No abstract text is available yet for this article.
March 16, 2018: Intensive Care Medicine
Paulo Bettencourt, Patrícia Lourenço
No abstract text is available yet for this article.
March 16, 2018: Heart: Official Journal of the British Cardiac Society
Sander van Doorn, Geert-Jan Geersing, Rogier F Kievit, Yvonne van Mourik, Loes C Bertens, Evelien E S van Riet, Leandra J Booman-de Winter, Karel G M Moons, Arno W Hoes, Frans H Rutten
OBJECTIVE: Heart failure (HF) often coexists in atrial fibrillation (AF) but is frequently unrecognised due to overlapping symptomatology. Furthermore, AF can cause elevated natriuretic peptide levels, impairing its diagnostic value for HF detection. We aimed to assess the prevalence of previously unknown HF in community-dwelling patients with AF, and to determine the diagnostic value of the amino-terminal pro B-type natriuretic peptide (NTproBNP) for HF screening in patients with AF...
March 16, 2018: Heart: Official Journal of the British Cardiac Society
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