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atrial fibrillation heart failure ablation

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https://www.readbyqxmd.com/read/28191906/intracardiac-echocardiography-for-verification-for-left-atrial-appendage-thrombus-presence-detected-by-transesophageal-echocardiography-the-actionice-ii-study
#1
Jakub Baran, Beata Zaborska, Roman Piotrowski, Malgorzata Sikora-Frąc, Ewa Pilichowska-Paszkiet, Piotr Kułakowski
BACKGROUND: Transesophageal echocardiography (TEE) remains the gold standard for exclusion of left atrial appendage (LAA) thrombus in patients scheduled for direct electrical cardioversion (DEC) or atrial fibrillation (AF) ablation. Recently, intracardiac echocardiography (ICE) of the pulmonary artery (PA) has been shown to provide excellent LAA images and to be useful in verification of equivocal TEE findings. HYPOTHESIS: ICE of the PA may have a role in detecting false-positive TEE results...
February 13, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28155102/stratification-of-cardiovascular-risk-in-patients-with-atrial-fibrillation-and-obstructive-sleep-apnea-validity-of-the-2mace-score
#2
Anna E Platek, Filip M Szymanski, Krzysztof J Filipiak, Alicja Dudzik-Plocica, Bartosz Krzowski, Grzegorz Karpinski
BACKGROUND: Risk stratification in patients with atrial fibrillation (AF) is critically important because this group is at high risk of mortality and morbidity. One of the comorbidities potentially affecting thromboembolic and total cardiovascular risk is obstructive sleep apnea (OSA). The aim of this study was to determine whether or not patients with atrial fibrillation and concomitant obstructive sleep apnea have a higher predicted cardiovascular risk than those without sleep-disordered breathing...
February 2, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28153995/atrial-fibrillation-and-ventricular-arrhythmias-sex-differences-in-electrophysiology-epidemiology-clinical-presentation-and-clinical-outcomes
#3
Anne M Gillis
Sex-specific differences in the epidemiology, pathophysiology, clinical presentation, clinical treatment, and clinical outcomes of atrial fibrillation (AF), sustained ventricular arrhythmias, and sudden cardiac death are recognized. Sex hormones cause differences in cardiac electrophysiological parameters between men and women that may affect the risk for arrhythmias. The incidence and prevalence of AF is lower in women than in men. However, because women live longer and AF prevalence increases with age, the absolute number of women with AF exceeds that of men...
February 7, 2017: Circulation
https://www.readbyqxmd.com/read/28138764/-ablation-for-atrial-fibrillation-in-the-elderly
#4
Clemens Jilek, Thorsten Lewalter
Atrial fibrillation is mainly an arrhythmia among the elderly. The current ESC guideline determines that there is no justification to deny atrial fibrillation ablation to any age group; however, the guideline does not provide specific scientific data. Thus, the goal of this article is to summarize the data on efficacy and safety of atrial fibrillation ablation among elderly people and give treatment recommendations: (1) The success of atrial fibrillation ablation is the same between elderly and younger patients...
January 30, 2017: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/28120557/a-thin-left-atrial-antral-wall-around-the-pulmonary-vein-reflects-structural-remodeling-by-atrial-fibrillation-and-is-associated-with-stroke
#5
Junbeom Park, Chul Hwan Park, Jae Sun Uhm, Hui Nam Pak, Moon Hyoung Lee, Boyoung Joung
PURPOSE: Circumferential pulmonary (PV) vein isolation (CPVI) is the most important treatment strategy for atrial fibrillation (AF). While understanding left atrial wall thickness around PVs (PVWT) prior to catheter ablation is important, its clinical implications are not known. This study aimed to evaluate PVWT characteristics according to underlying disease and to identify associations between PVWT and reconnections of PV potentials (PVPs) in redo ablation. MATERIALS AND METHODS: In 28 patients who underwent redo-AF ablation, PVWT and reconnected PVPs were evaluated at 12 sites (1-12 o'clock) around each PV...
March 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/28119381/brain-emboli-after-left-ventricular-endocardial-ablation
#6
Isaac R Whitman, Rachel A Gladstone, Nitish Badhwar, Henry H Hsia, Byron Lee, S Andrew Josephson, Karl M Meisel, William P Dillon, Christopher Hess, Edward P Gerstenfeld, Gregory M Marcus
BACKGROUND: -Catheter ablation for ventricular tachycardia (VT) and premature ventricular complexes (PVCs) is common. Catheter ablation of atrial fibrillation is associated with a risk of cerebral emboli attributed to cardioversions and numerous ablation lesions in the low-flow left atrium, but cerebral embolic risk in ventricular ablation has not been evaluated. METHODS: -We enrolled 18 consecutive patients meeting study criteria scheduled for VT or PVC ablation over a 9-month period...
January 24, 2017: Circulation
https://www.readbyqxmd.com/read/28108547/characterising-the-difference-in-electrophysiological-substrate-and-outcomes-between-heart-failure-and-non-heart-failure-patients-with-persistent-atrial-fibrillation
#7
Shouvik K Haldar, David G Jones, Habib Khan, Sandeep Panikker, Julian W E Jarman, Charlie Butcher, Eric Lim, Gareth Wynn, Dhiraj Gupta, Wajid Hussain, Vias Markides, Tom Wong
AIMS: Characterizing the differences in substrate and clinical outcome between heart failure (HF) and non-heart failure (non-HF) patients undergoing persistent atrial fibrillation (AF) ablation. METHODS AND RESULTS: Using complex fractionated electrograms (CFE) as a surrogate marker of substrate complexity, we compared the bi-atrial substrate in patients with persistent AF with and without HF, at baseline and after ablation, to determine its impact on clinical outcome...
January 20, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27999513/choosing-non-vitamin-k-antagonist-oral-anticoagulants-practical-considerations-we-need-to-know
#8
REVIEW
Alpesh Amin
BACKGROUND: Warfarin is a well-established agent for use in the prevention of stroke or systemic embolic event (SEE) in patients with nonvalvular atrial fibrillation (NVAF) and for the treatment of venous thromboembolism (VTE). However, management of patients requiring oral anticoagulation with warfarin can be complicated by the need for frequent monitoring, drug-drug and drug-food interactions, and a variable response based on genetic polymorphisms. The non-vitamin K antagonist oral anticoagulants (NOACs) were developed as alternatives to warfarin; they do not require routine monitoring and have predictable pharmacokinetics, fewer drug-drug interactions, and limited drug-food interactions...
2016: Ochsner Journal
https://www.readbyqxmd.com/read/27912983/hypertrophic-obstructive-cardiomyopathy
#9
REVIEW
Josef Veselka, Nandan S Anavekar, Philippe Charron
Hypertrophic obstructive cardiomyopathy is an inherited myocardial disease defined by cardiac hypertrophy (wall thickness ≥15 mm) that is not explained by abnormal loading conditions, and left ventricular obstruction greater than or equal to 30 mm Hg. Typical symptoms include dyspnoea, chest pain, palpitations, and syncope. The diagnosis is usually suspected on clinical examination and confirmed by imaging. Some patients are at increased risk of sudden cardiac death, heart failure, and atrial fibrillation...
November 30, 2016: Lancet
https://www.readbyqxmd.com/read/27910083/radiofrequency-catheter-ablation-of-accessory-pathways-in-patients-with-ebstein-s-anomaly-at-8-years-of-follow-up
#10
Michał Orczykowski, Paweł Derejko, Robert Bodalski, Piotr Urbanek, Joanna Zakrzewska-Koperska, Radosław Sierpiński, Katarzyna Kalin, Andrzej Hasiec, Grzegorz Warmiński, Maria Miszczak-Knecht, Katarzyna Bieganowska, Rafał Baranowski, Maria Bilińska, Elżbieta Biernacka, Piotr Hoffman, Łukasz Szumowski
BACKGROUND: Data regarding long-term follow-up of radiofrequency catheter ablation (RFCA) of accessory pathways (APs) in patients with Ebstein's anomaly (EA) are limited. The procedures are challenging due to multiple or wide APs. METHODS: Analysis was performed on clinical and periprocedural data of patients with EA referred to the centre in order to perform catheter ablation of accessory pathway (AP). The group consisted of 22 patients (female 40.9%, mean age 33...
December 2, 2016: Cardiology Journal
https://www.readbyqxmd.com/read/27893055/assessment-of-use-vs-discontinuation-of-oral-anticoagulation-after-pulmonary-vein-isolation-in-patients-with-atrial-fibrillation
#11
Sara Själander, Fredrik Holmqvist, J Gustav Smith, Pyotr G Platonov, Milos Kesek, Peter J Svensson, Carina Blomström-Lundqvist, Fariborz Tabrizi, Jari Tapanainen, Dritan Poci, Anders Jönsson, Anders Själander
Importance: Pulmonary vein isolation (PVI) is a recommended treatment for patients with atrial fibrillation, but it is unclear whether it results in a lower risk of stroke. Objectives: To investigate the proportion of patients discontinuing anticoagulation treatment after PVI in association with the CHA2DS2-VASc (congestive heart failure, hypertension, age ≥75 years [doubled], diabetes, stroke [doubled], vascular disease, age 65-74 years, sex category [female]) score, identify factors predicting stroke after PVI, and explore the risk of cardiovascular events after PVI in patients with and without guideline-recommended anticoagulation treatment...
February 1, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/27886924/how-to-improve-cardiac-resynchronization-therapy-benefit-in-atrial-fibrillation-patients-pulmonary-vein-isolation-and-beyond
#12
REVIEW
Carola Gianni, Luigi Di Biase, Sanghamitra Mohanty, Yalçın Gökoğlan, Mahmut Fatih Güneş, Amin Al-Ahmad, J David Burkhardt, Andrea Natale
Although cardiac resynchronization therapy (CRT) is an important treatment of symptomatic heart failure patients in sinus rhythm with low left ventricular ejection fraction and ventricular dyssynchrony, its role is not well defined in patients with atrial fibrillation (AF). CRT is not as effective in patients with AF because of inadequate biventricular capture and loss of atrioventricular synchrony. Both can be addressed with catheter ablation of AF. It is still unclear if these therapies offer additive benefits in patients with ventricular dyssynchrony...
January 2017: Heart Failure Clinics
https://www.readbyqxmd.com/read/27886923/atrioventricular-node-ablation
#13
REVIEW
Maurizio Gasparini
Cardiac resynchronization therapy (CRT) is a device-based, nonpharmacologic approach that has shown to improve the outcome in patients with heart failure in terms of mortality and morbidity reduction. Large randomized trials have virtually enrolled patients in New York Heart Association class III-IV, with reduced left ventricular ejection fraction, with evidence of electrical dyssynchrony, and receiving optimal medical therapy and who were in sinus rhythm. Guidelines remain imprecise as to defining differentiated approaches according to the forms of atrial fibrillation other than permanent...
January 2017: Heart Failure Clinics
https://www.readbyqxmd.com/read/27873022/current-rare-indications-and-future-directions-for-implantable-loop-recorders
#14
Simon Wechselberger, Christopher Piorkowski, Matthias Pohl
The scope of application for implantable loop recorders has shifted away from the evaluation of unclear palpitations and syncope episodes to more complex conditions. This article focuses on rare indications of growing importance such as rhythm monitoring after ablation of atrial fibrillation or after cryptogenic stroke. Furthermore, forthcoming applications in various clinical settings are described, e. g., arrhythmia detection after myocardial infarction, after catheter-based valve interventions, in heart failure, and in cardiomyopathies...
December 2016: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/27807090/surgical-ablation-of-atrial-fibrillation-a-protocol-for-a-systematic-review-and-meta-analysis-of-randomised-controlled-trials
#15
Graham R McClure, Emilie P Belley-Cote, Rohit K Singal, Iqbal H Jaffer, Nazari Dvirnik, Kevin R An, Gabriel Fortin, Jessica Spence, Richard P Whitlock
INTRODUCTION: Atrial fibrillation (AF) affects 10% of patients undergoing cardiac surgery and is an independent risk factor for all-cause mortality, ischaemic stroke and heart failure. Surgical AF ablation has been shown to significantly improve maintenance of sinus rhythm, however, small to medium size trials conducted to date lack the power required to assess patient-important outcomes such as mortality, stroke, heart failure and health-related quality of life. Moreover, a recent randomised trial (RCT) suggested harm by surgical AF ablation with an almost threefold increase in the requirement for permanent pacemaker postablation...
November 2, 2016: BMJ Open
https://www.readbyqxmd.com/read/27802430/prognostic-value-of-red-blood-cell-distribution-width-on-bleeding-events-in-nonvalvular-atrial-fibrillation-patients-taking-dabigatran-110-mg-b-i-d-after-catheter-ablation
#16
Qing Zhang, Yao Qin, Dong-Sheng Zhao, Hai-Ping Zhao, Lei Zhou
OBJECTIVES: Recent research has indicated that red blood cell distribution width (RDW) is associated with the prognosis of cardiovascular diseases such as chronic heart failure and coronary heart disease. We aimed to study the predictive value of RDW for bleeding events in patients with nonvalvular atrial fibrillation (NVAF) during the administration of 110 mg of dabigatran twice a day after catheter ablation. METHODS: One hundred and seventy-two NVAF patients who were hospitalized and received catheter ablation in Jiangsu Provincial People's Hospital from January 2014 to January 2015 were enrolled (110 mg of dabigatran was administered orally to outpatients preoperatively twice a day for 3 weeks)...
November 2, 2016: Cardiology
https://www.readbyqxmd.com/read/27782345/safety-and-clinical-outcomes-of-catheter-ablation-of-atrial-fibrillation-in-patients-with-chronic-kidney-disease
#17
Aditya J Ullal, Daniel W Kaiser, Jun Fan, Susan K Schmitt, Claire T Than, Wolfgang C Winkelmayer, Paul A Heidenreich, Jonathan P Piccini, Marco V Perez, Paul J Wang, Mintu P Turakhia
INTRODUCTION: Data regarding catheter ablation of atrial fibrillation (AF) in patients with chronic kidney disease (CKD) is limited. We therefore assessed the association of CKD with common safety and clinical outcomes in a nationwide sample of ablation recipients. METHODS: Using MarketScan(®) Commercial Claims and Medicare Supplemental Databases, we evaluated 30-day safety and 1-year clinical outcomes in patients who underwent a first AF ablation procedure between 2007 and 2011...
January 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/27775782/observation-of-the-efficacy-of-radiofrequency-catheter-ablation-on-patients-with-different-forms-of-atrial-fibrillation
#18
R-C Zhao, W Han, J Han, J Yu, J Guo, J-L Fu, Z Li, R-Z Zhao
OBJECTIVE: To study the efficacy and safety of radiofrequency catheter ablation (RFCA) in patients with different forms of atrial fibrillation. PATIENTS AND METHODS: By retrospective analysis, we summarize 720 cases, where patients diagnosed with atrial fibrillation in our hospital were treated with RFCA from February 2010 to October 2014. Among the cases, 425 were diagnosed with paroxysmal atrial fibrillation and 295 with non-paroxysmal atrial fibrillation (including persistent atrial fibrillation and permanent atrial fibrillation)...
October 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/27754137/os-27-01-is-hypertension-a-risk-factor-for-recurrence-after-radiofrequency-catheter-ablation-in-atrial-fibrillation
#19
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
https://www.readbyqxmd.com/read/27748530/sudden-death-and-its-risk-factors-after-atrioventricular-junction-ablation-and-pacemaker-implantation-in-patients-with-atrial-fibrillation
#20
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...
January 2017: Clinical Cardiology
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