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atrial fibrillation heart failure ablation

Ru-Xing Wang, Hon-Chi Lee, Jia-Ping Li, David O Hodge, Yong-Mei Cha, Paul A Friedman, Thomas M Munger, Komandoor Srivathsan, Behzad B Pavri, Win-Kuang Shen
BACKGROUND: Although sudden death (SD) is a rare complication after atrioventricular junction (AVJ) ablation and permanent pacemaker implantation, the risk factors leading to this SD remain unknown. The purpose of this study was to investigate SD and its risk factors after ablate-and-pace strategy for rate control in atrial fibrillation (AF) patients during long-term follow-up. HYPOTHESIS: METHODS: From January 2005 to December 2009, we enrolled into this study 517 AF patients with AVJ ablation and right ventricular pacemaker implantation...
October 17, 2016: Clinical Cardiology
Zdeňka Límanová, Jan Jiskra
Cardiovascular system is essentially affected by thyroid hormones by way of their genomic and non-genomic effects. Untreated overt thyroid dysfunction is associated with higher cardiovascular risk. Although it has been studied more than 3 decades, in subclinical thyroid dysfunction the negative effect on cardiovascular system is much more controversial. Large meta-analyses within last 10 years have shown that subclinical hyperthyroidism is associated with higher cardiovascular risk than subclinical hypothyroidism...
2016: Vnitr̆ní Lékar̆ství
Petra Maagh, Gunnar Plehn, Arnd Christoph, Ahmet Oernek, Axel Meissner
Background: Atrial fibrillation (AF) represents a turning point in hypertrophic cardiomyopathy (HCM). Pulmonary Vein Isolation (PVI) with Radiofrequency Catheter Ablation (RFCA) is accepted to be successful in restoring sinus rhythm (SR) in HCM patients. The efficacy of cryoballoon (CB) therapy in HCM patients has not been studied so far. Methods: 166 patients with AF underwent PVI with CB technology in our single center between 1/2012 and 12/2015. To evaluate the efficacy of the CB therapy in HCM patients, we compared their clinical outcome with those in "Non-HCM" AF patients in a 3 and 6 months follow-up...
2016: International Journal of Medical Sciences
Mi-Na Kim, Donghyuk Cho, Jae-Min Shim, Jong Il Choi, Seong-Mi Park, Young-Hoon Kim, Wan-Joo Shim
OBJECTIVE: Hypertension (HT) is the important risk factor for atrial fibrillation (AF). Hemodynamic overload by increased blood pressure causes atrial wall stretch and atrial dysfunction. Left atrial (LA) dysfunction has been regarded as the most important risk factor for AF recurrence after radiofrequency catheter ablation (RFCA). But there are controversies regarding the role of hypertension as a risk factor of AF recurrence after RFCA. The aim of this study was to assess whether the hypertension is an independent risk factor for AF recurrence after RFCA...
September 2016: Journal of Hypertension
Riccardo Cappato, Robert Welsh
The vast clinical research programme for the direct, oral factor Xa inhibitor rivaroxaban has generated a wealth of data since the first rivaroxaban approval in 2008 for the prevention of venous thromboembolism (VTE) in patients undergoing elective hip or knee replacement surgery. While rivaroxaban is widely used across a spectrum of seven indications, there is continuous commitment to investigating its wider benefits in new indications and attempts to refine current evidence. Key data from recently completed randomised controlled trials (RCTs) have shown that rivaroxaban is a feasible anticoagulation option for patients with non-valvular atrial fibrillation (NVAF) undergoing cardioversion or catheter ablation...
September 28, 2016: Thrombosis and Haemostasis
Karen P Phillips
No abstract text is available yet for this article.
August 2016: Journal of Thoracic Disease
Eleonora Grandi, Mary M Maleckar
Atrial fibrillation (AF), the most common cardiac arrhythmia, is associated with increased risk of cerebrovascular stroke, and with several other pathologies, including heart failure. Current therapies for AF are targeted at reducing risk of stroke (anticoagulation) and tachycardia-induced cardiomyopathy (rate or rhythm control). Rate control, typically achieved by atrioventricular nodal blocking drugs, is often insufficient to alleviate symptoms. Rhythm control approaches include antiarrhythmic drugs, electrical cardioversion, and ablation strategies...
September 6, 2016: Pharmacology & Therapeutics
Raquel Ferreira, João Primo, Luís Adão, Anabela Gonzaga, Helena Gonçalves, Rui Santos, Paulo Fonseca, José Santos, Vasco Gama
Cardiac surgery for structural heart disease (often involving the left atrium) and radiofrequency catheter ablation of atrial fibrillation have led to an increased incidence of regular atrial tachycardias, often presenting as atypical flutters. This type of flutter is particularly common after pulmonary vein isolation, especially after extensive atrial ablation including linear lesions and/or defragmentation. The authors describe the case of a 51-year-old man, with no relevant medical history, referred for a cardiology consultation in 2009 for paroxysmal atrial fibrillation...
October 2016: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
Jonathan P Piccini, Laurent Fauchier
Many patients with atrial fibrillation have substantial symptoms despite ventricular rate control and require restoration of sinus rhythm to improve their quality of life. Acute restoration (ie, cardioversion) and maintenance of sinus rhythm in patients with atrial fibrillation are referred to as rhythm control. The decision to pursue rhythm control is based on symptoms, the type of atrial fibrillation (paroxysmal, persistent, or long-standing persistent), patient comorbidities, general health status, and anticoagulation status...
August 20, 2016: Lancet
Isabelle C Van Gelder, Michiel Rienstra, Harry J G M Crijns, Brian Olshansky
Control of the heart rate (rate control) is central to atrial fibrillation management, even for patients who ultimately require control of the rhythm. We review heart rate control in patients with atrial fibrillation, including the rationale for the intervention, patient selection, and the treatments available. The choice of rate control depends on the symptoms and clinical characteristics of the patient, but for all patients with atrial fibrillation, rate control is part of the management. Choice of drugs is patient-dependent...
August 20, 2016: Lancet
Rohan Shah, Manesh R Patel
BACKGROUND: The safety and efficacy of the oral anticoagulant rivaroxaban were studied in the Rivaroxaban Once Daily Oral Direct Factor Xa Inhibition Compared with Vitamin K Antagonism for Prevention of Stroke and Embolism Trial in Atrial Fibrillation (ROCKET AF trial). A number of subanalyses of the ROCKET AF trial have subsequently analyzed the use of rivaroxaban in special patient populations. METHODS: The outcomes of the ROCKET AF trial were reviewed. The use of rivaroxaban in higher risk populations, as determined by the presence of co-morbidities included in the CHADS2 criteria, was analyzed...
August 23, 2016: Therapeutic Advances in Cardiovascular Disease
Niv Ad, Sari D Holmes, Deborah Lamont, Deborah J Shuman
BACKGROUND: Growing evidence indicates the effectiveness of surgical ablation confined to the left atrium, especially with short duration of atrial fibrillation (AF) and smaller left atrial (LA) size. This study examined rhythm status and predictors of failure in this group of patients. METHODS: Of 800 patients who underwent concomitant surgical ablation (2005 to 2015), 110 had LA-only ablation. Rhythm status was defined according to Heart Rhythm Society guidelines: sinus rhythm (SR) without class I/III antiarrhythmic drugs (AADs)...
August 17, 2016: Annals of Thoracic Surgery
Giacomo Mugnai, Darragh Moran, Erwin Ströker, Diego Ruggiero, Hugo Enrique Coutino-Moreno, Ken Takarada, Valentina De Regibus, Rajin Choudhury, Saverio Iacopino, Pasquale Filannino, Vincent Umbrain, Stefan Beckers, Pedro Brugada, Carlo de Asmundis, Gian-Battista Chierchia
PURPOSE: Our aim was to analyse the temperature behaviour during second-generation cryoballoon ablation (CB-A) in patients with ongoing atrial fibrillation (AF) compared with those in sinus rhythm (SR). METHODS: Consecutive patients with drug-resistant AF who underwent pulmonary vein (PV) isolation by CB-A from April 2014 to May 2015 were analysed. The exclusion criteria were any contraindication for the procedure including the presence of an intracavitary thrombus, uncontrolled heart failure, contraindications to general anaesthesia and cardioversion to SR during the ablation procedure...
August 15, 2016: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
Yoshio Takemoto, Rafael J Ramirez, Miki Yokokawa, Kuljeet Kaur, Daniela Ponce-Balbuena, Mohamad C Sinno, B Cicero Willis, Hamid Ghanbari, Steven R Ennis, Guadalupe Guerrero-Serna, Bettina C Henzi, Rakesh Latchamsetty, Roberto Ramos-Mondragon, Hassan Musa, Raphael P Martins, Sandeep V Pandit, Sami F Noujaim, Thomas Crawford, Krit Jongnarangsin, Frank Pelosi, Frank Bogun, Aman Chugh, Omer Berenfeld, Fred Morady, Hakan Oral, José Jalife
OBJECTIVES: To determine whether Gal-3 mediates sustained atrial fibrillation (AF)-induced atrial structural and electrical remodeling and contributes to AF perpetuation. BACKGROUND: Galectin-3 (Gal-3) mediates extracellular matrix remodeling in heart failure, but its role in AF progression remains unexplored. METHODS: We examined intracardiac blood samples from patients with AF (N=55) to identify potential biomarkers of AF recurrence. In a sheep model of tachypacing-induced AF (N=20), we tested the effects of Gal-3 inhibition during AF progression...
April 2016: JACC. Basic to Translational Science
Min Zhu, Xinbin Zhou, Hongwen Cai, Zhijun Wang, Huimin Xu, Shenjie Chen, Jie Chen, Xiaoming Xu, Haibin Xu, Wei Mao
BACKGROUND: The effectiveness of restoring the sinus rhythm by catheter ablation relative to that of medical rate control for persistent atrial fibrillation (AF) patients with heart failure (HF) remains to be defined. METHODS: We systematically searched Embase, Pubmed, the Cochrane Library, and for articles that compared the outcomes of interest between catheter ablation and medical rate control therapy in persistent AF patients with HF and left ventricular systolic dysfunction (LVSD)...
July 2016: Medicine (Baltimore)
Lohit Garg, Charity Chen, David E Haines
INTRODUCTION: Warfarin therapy for stroke prevention is recommended for patients with AF, but its value in patients with chronic kidney disease on HD is unknown. METHODS: The anticoagulation regimens of patients with a prior history of AF hospitalized for initiation of chronic HD, and of patients receiving chronic HD who had a new diagnosis of AF between 2009 and 2012 were reviewed. Exclusions were renal transplant, peritoneal dialysis, rheumatic valve disease, prosthetic heart valve, GI bleeding, malignancy with chemotherapy in last 6months or still undergoing treatment, a history of AF ablation, a history of ICD implantation, or those receiving warfarin for non-AF indications...
November 1, 2016: International Journal of Cardiology
R Jing, X Y Guo, S J Xia, S S Chang, J Y Li, S X Lu, X Du, J Z Dong, C S Ma
OBJECTIVE: To investigate the current situation, time trends and factors associated with long-term use of oral anticoagulation (OAC) among atrial fibrillation (AF) patients with ischemic stroke. METHODS: We used the dataset from the CAFR (Chinese Atrial Fibrillation Registry), a prospective, multicenter, hospital-based registry study involving 20 tertiary and 12 nontertiary hospitals in Beijing. In brief, 380 consecutive AF patients with following ischemic stroke were enrolled from 2003 to 2014...
July 12, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Mark S Link, Michel Haïssaguerre, Andrea Natale
Atrial fibrillation (AF) is the most common arrhythmia encountered by cardiologists and is a major cause of morbidity and mortality. Risk factors for AF include age, male sex, genetic predisposition, hypertension, diabetes mellitus, sleep apnea, obesity, excessive alcohol, smoking, hyperthyroidism, pulmonary disease, air pollution, heart failure, and possibly excessive exercise. The management of AF involves decisions about rate versus rhythm control. Asymptomatic patients are generally managed with rate control and anticoagulation...
July 26, 2016: Circulation
David G Jones, Shouvik K Haldar, Jacqueline Donovan, Theresa A McDonagh, Rakesh Sharma, Wajid Hussain, Vias Markides, Tom Wong
BACKGROUND: To investigate the effects of catheter ablation and rate control strategies on cardiac and inflammatory biomarkers in patients with heart failure and persistent atrial fibrillation (AF). METHODS: Patients were recruited from the ARC-HF trial (catheter Ablation vs Rate Control for management of persistent AF in Heart Failure, NCT00878384), which compared ablation with rate control for persistent AF in heart failure. B-type natriuretic peptide (BNP), midregional proatrial natriuretic peptide (MR-proANP), apelin, and interleukin-6 (IL-6) were assayed at baseline, 3 months, 6 months, and 12 months...
September 2016: Pacing and Clinical Electrophysiology: PACE
Hee Tae Yu, Jihei Sara Lee, Tae-Hoon Kim, Jae-Sun Uhm, Boyoung Joung, Geu-Ru Hong, Moon-Hyoung Lee, Chi Young Shim, Hui-Nam Pak
BACKGROUND: The risk of stroke imposed by atrial fibrillation (AF) is significantly greater in women than men; however, the mechanism remains elusive. We hypothesized that left atrial (LA) remodeling and poor contractile function of LA appendage (LAA) would be more predominant in women than men among AF patients. METHODS AND RESULTS: A total of 579 AF patients (216 women vs age-, AF type-, and incidences of heart failure, hypertension, diabetes mellitus, stroke or transient ischemic attack, and vascular disease-matched 363 men, 61...
July 2016: Journal of the American Heart Association
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