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Atrial fibrillation ablation

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https://www.readbyqxmd.com/read/29792215/adding-left-atrial-appendage-closure-to-open-heart-surgery-provides-protection-from-ischemic-brain-injury-six-years-after-surgery-independently-of-atrial-fibrillation-history-the-laacs-randomized-study
#1
Jesper Park-Hansen, Susanne J V Holme, Akhmadjon Irmukhamedov, Christian L Carranza, Anders M Greve, Gina Al-Farra, Robert G C Riis, Brian Nilsson, Johan S R Clausen, Anne S Nørskov, Christina R Kruuse, Egill Rostrup, Helena Dominguez
BACKGROUND: Open heart surgery is associated with high occurrence of atrial fibrillation (AF), subsequently increasing the risk of post-operative ischemic stroke. Concomitant with open heart surgery, a cardiac ablation procedure is commonly performed in patients with known AF, often followed by left atrial appendage closure with surgery (LAACS). However, the protective effect of LAACS on the risk of cerebral ischemia following cardiac surgery remains controversial. We have studied whether LAACS in addition to open heart surgery protects against post-operative ischemic brain injury regardless of a previous AF diagnosis...
May 23, 2018: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/29791576/catheter-ablation-for-atrial-fibrillation-in-patients-with-heart-failure
#2
Mauricio Scanavacca, Edimar Alcides Bocchi
No abstract text is available yet for this article.
April 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29789334/x-ray-exposure-in-cardiac-electrophysiology-a-retrospective-analysis-in-8150-patients-over-7-years-of-activity-in-a-modern-large-volume-laboratory
#3
Michela Casella, Antonio Dello Russo, Eleonora Russo, Valentina Catto, Francesca Pizzamiglio, Martina Zucchetti, Benedetta Majocchi, Stefania Riva, Giulia Vettor, Maria Antonietta Dessanai, Gaetano Fassini, Massimo Moltrasio, Fabrizio Tundo, Carlo Vignati, Sergio Conti, Alice Bonomi, Corrado Carbucicchio, Luigi Di Biase, Andrea Natale, Claudio Tondo
BACKGROUND: Only a few studies have systematically evaluated fluoroscopy data of electrophysiological and device implantation procedures. Aims of this study were to quantify ionizing radiation exposure for electrophysiological/device implantation procedures in a large series of patients and to analyze the x-ray exposure trend over years and radiation exposure in patients undergoing atrial fibrillation ablation considering different technical aspects. METHODS AND RESULTS: We performed a retrospective analysis of all electrophysiological/device implantation procedures performed during the past 7 years in a modern, large-volume laboratory...
May 22, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29788351/uninterrupted-apixaban-for-atrial-fibrillation-ablation-is-a-reasonable-alternative-but-what-is-the-significance-of-silent-cerebral-infarctions
#4
Daniel J Friedman, Christopher B Granger
No abstract text is available yet for this article.
May 19, 2018: European Heart Journal
https://www.readbyqxmd.com/read/29786530/meta-analysis-of-safety-and-efficacy-of-oral-anti-coagulants-in-patients-requiring-catheter-ablation-for-atrial-fibrillation
#5
Hammad Rahman, Safi U Khan, Michael DePersis, Tehseen Hammad, Fahad Nasir, Edo Kaluski
BACKGROUND: The ideal oral anticoagulant agent during catheter ablation (CA) for atrial fibrillation (AF) remained unclear. HYPOTHESIS: Novel oral anticoagulants (NOACs) are safer and effective compared to uninterrupted vitamin K antagonists (U-VKA) among patients requiring CA for AF. METHODS: Four randomized controlled trials (RCTs) and 9 observational studies (OS) were selected using PubMed/Medline, EMBASE and the CENTRAL data bases (Inception-December-2017)...
May 9, 2018: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/29784485/p-wave-analysis-in-the-era-of-atrial-fibrillation-ablation
#6
REVIEW
Fabio M Leonelli, Emanuela T Locati, Giuseppe Bagliani, Roberto De Ponti, Luigi Padeletti, Laura Cipolletta, Alessandro Capucci
The common arrhythmia atrial fibrillation (AF) is incompletely understood. The mechanism of initiation and the perpetuation of AF remain speculative. This article summarizes current knowledge of the complex relationship between arrhythmias triggering AF and their long-term effects on atrial tissue, leading to perpetuation of tachycardia. It focuses on the role of the electrocardiogram (ECG) from AF diagnosis to identification of sinus P wave abnormalities predicting future occurrences. The role of ambulatory ECG recordings in managing AF and the use of frequency analysis determining degree of organization and identification of AF triggers are discussed...
June 2018: Cardiac Electrophysiology Clinics
https://www.readbyqxmd.com/read/29780037/past-and-present-work-practices-of-european-interventional-cardiologists-in-the-context-of-radiation-protection-of-the-eye-lens-results-of-the-euraloc-study
#7
Joanna Karolina Domienik-Andrzejewska, Olivera Ciraj-Bjelac, Panagiotis Askounis, Peter Covens, Octavian Dragusin, Sophie Jacob, Jad Farah, Emilio Gianicolo, Renato Padovani, Pedro Manuel Peixoto Teles, Anders Widmark, Lara Struelens
This paper investigates over five decades of work practices in interventional cardiology with special emphasis on radiation protection. The analysis is based on the data from more than 400 cardiologists from different European countries recruited for EURALOC study collected in the period from 2014 to 2016. Information on the types of procedures performed and their annual mean number, fluoroscopy time, access site choice, X-ray units and radiation protection means used was collected using an occupational questionnaire...
May 21, 2018: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/29777366/is-ganglionated-plexus-ablation-effective-for-treating-atrial-fibrillation
#8
Michiko Watanabe, Hiroki Kohno, Yusuke Kondo, Hideki Ueda, Keiichi Ishida, Yusaku Tamura, Shinichiro Abe, Yasunori Sato, Yoshio Kobayashi, Goro Matsumiya
PURPOSE: Very few studies have investigated the efficacy of ganglionated plexus ablation during the conventional maze procedure. In this study, we sought to evaluate its additive effect in reducing recurrent atrial fibrillation after concomitant maze surgery. METHODS: A retrospective study was conducted of 79 patients who underwent Cox maze IV concomitantly with open-heart surgery with (GP group) or without (Maze group) ganglionated plexus mapping. All active ganglionated plexuses were ablated...
May 18, 2018: Surgery Today
https://www.readbyqxmd.com/read/29777140/different-responses-of-left-atrium-and-left-atrial-appendage-to-radiofrequency-catheter-ablation-of-atrial-fibrillation-a-follow-up-mri-study
#9
Yun Gi Kim, Jaemin Shim, Suk-Kyu Oh, Hee-Soon Park, Kwang-No Lee, Sung Ho Hwang, Jong-Il Choi, Young-Hoon Kim
Atrial fibrillation (AF) is known to cause adverse remodeling of left atrium (LA). Radiofrequency catheter ablation (RFCA) of AF is associated with decrease in LA volume. However, the impact of RFCA on left atrial appendage (LAA) volume and hemodynamic function is not fully understood. We analyzed 123 patients who underwent cardiac magnetic resonance imaging (MRI) evaluation before and after RFCA in Korea University Anam Hospital. LA and LAA volume were measured before and after RFCA based on cardiac MRI. Baseline LA volume was 99...
May 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29776959/symptom-burden-of-atrial-fibrillation-and-its-relation-to-interventions-and-outcome-in-europe
#10
Renate B Schnabel, Ladislav Pecen, Nargiz Rzayeva, Markus Lucerna, Yanish Purmah, Francisco M Ojeda, Raffaele De Caterina, Paulus Kirchhof
BACKGROUND: Little is known about the association of atrial fibrillation symptom burden with quality of life and outcomes. METHODS AND RESULTS: In the Prevention of Thromboembolic Events-European Registry in Atrial Fibrillation (n=6196 patients with atrial fibrillation; mean±SD age, 71.8±10.4 years; 39.7% women), we assessed European Heart Rhythm Association score symptoms and calculated correlations with the standardized health status questionnaire (EQ-5D-5L)...
May 18, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29776386/impact-of-vkorc1-cyp4f2-and-nqo1-gene-variants-on-warfarin-dose-requirement-in-han-chinese-patients-with-catheter-ablation-for-atrial-fibrillation
#11
Jiao Li, Wenlong Yang, Zhonghui Xie, Kun Yu, Yuhua Chen, Kaijun Cui
BACKGROUND: The anticoagulation of atrial fibrillation catheter ablation during the perioperative stage does matter and should be treated with discretion. We aimed to assess impact of three important genes participating in vitamin K cycle (i.e. VKORC1 rs9923231, CYP4F2 rs2108622 and NQO1 rs1800566) on the daily stable warfarin dose requirement in Sichuan Han Chinese patients with catheter ablation of atrial fibrillation. METHODS: A total of 222 atrial fibrillation patients taking stable warfarin therapy after catheter ablation operation were enrolled in this study...
May 18, 2018: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29775967/bilateral-breast-calciphylaxis-in-a-patient-who-survived-earlier-extensive-tissue-necrosis-5-years-previously-a-case-report
#12
E M J Verstappen, A J G Maaskant-Braat, M R Scheltinga
INTRODUCTION: Calciphylaxis is a rare condition including patchy dermal necrosis that mostly affects chronic hemodialysis patients. The syndrome usually heralds impending death although patients may survive following a set of measures including an adapted dialysis regimen. The present case is a unique patient who recovered from an earlier episode of upper leg calciphylaxis 5 years previously but developed fatal bilateral breast necrosis. PRESENTATION OF CASE: A 69 year old Caucasian woman with a history of atrial fibrillation, hypertension, CVA, hyperparathyroidectomy for secondary hyperparathyroidism and end stage renal disease with hemodialysis recovered in 2012 from extensive symptomatic left upper leg necrosis due to calciphylaxis...
May 7, 2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29773211/treating-obstructive-sleep-apnea-with-continuous-positive-airway-pressure-reduces-risk-of-recurrent-atrial-fibrillation-after-catheter-ablation-a-meta-analysis
#13
REVIEW
Feilong Deng, Ali Raza, Jun Guo
INTRODUCTION: Recent studies have suggested that there is a strong relationship between obstructive sleep apnea (OSA) and atrial fibrillation (AF). However, they have not identified whether treating OSA with continuous positive airway pressure (CPAP) might reduce rates of recurrent AF. OBJECTIVE: To investigate the recurrent risk of AF after catheter ablation among patients with OSA who did receive or did nor receive CPAP therapy. METHODS: A systematic review of PubMed, Embase, Medline, Cochrane library, China National Knowledge Infrastructure (CNKI) and Wan-fang databases was conducted to obtain relevant cohort studies and randomized controlled trials (RCTs)...
June 2018: Sleep Medicine
https://www.readbyqxmd.com/read/29769223/comprehensive-multicenter-study-of-the-common-isthmus-in-post-atrial-fibrillation-ablation-multiple-loop-atrial-tachycardia
#14
Masateru Takigawa, Nicolas Derval, Philippe Maury, Ruairidh Martin, Arnaud Denis, Shinsuke Miyazaki, Seigo Yamashita, Antonio Frontera, Konstantinos Vlachos, Takeshi Kitamura, Ghassen Cheniti, Greégoire Massoullieé, Nathaniel Thompson, Claire A Martin, Michael Wolf, Xavier Pillois, Josselin Duchateau, Nicolas Klotz, Alexandre Duparc, Anne Rollin, Thomas Pambrun, Frédéric Sacher, Hubert Cochet, Mélèze Hocini, Michel Haiïssaguerre, Pierre Jaiïs
BACKGROUND: Characteristics of multiple-loop atrial tachycardia (AT) circuits have never precisely examined. METHODS: In 193 consecutive post-atrial fibrillation ablation patients with AT, 44 multiple-loop ATs including 42 dual-loop AT and 2 triple-loop AT in 41 (21.2%) were diagnosed with the high-resolution mapping system and analyzed off-line. RESULTS: In dual-loop ATs, 3 types were identified: type M, a combination of 2 anatomic macroreentrant ATs (AMATs) in 19 (43...
June 2018: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29768672/catheter-ablation-for-atrial-fibrillation-on-uninterrupted-direct-oral-anticoagulants-a-safe-approach
#15
V Sawhney, M Shaukat, E Volkova, N Jones, R Providencia, S Honarbakhsh, G Dhillon, A Chow, M Lowe, P Lambiase, M Dhinoja, S Sporton, M J Earley, R J Schilling, R J Hunter
BACKGROUND: Current consensus guidelines suggest DOACs are interrupted peri-procedurally for catheter ablation (CA) of AF. However, this may predispose patients to thromboembolic complications. This study investigates the safety of CA for AF on uninterrupted DOACs compared to uninterrupted warfarin. METHODS: Single centre, retrospective study of consecutive patients undergoing CA for AF. All patients were heparinised prior to trans-septal puncture with a target activated clotting time (ACT) of 300-350 seconds...
May 16, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29768386/are-left-ventricular-ejection-fraction-and-left-atrial-diameter-related-to-atrial-fibrillation-recurrence-after-catheter-ablation-a-meta-analysis
#16
Xiao Jin, Jianke Pan, Huanlin Wu, Danping Xu
Atrial fibrillation (AF), the most common form of arrhythmia, is associated with the prevalence of many common cardiovascular and cerebrovascular diseases. Catheter ablation is considered the first-line therapy for AF; however, AF recurrence is very common after catheter ablation. Studies have been performed to analyze the factors associated with AF recurrence, but none have reached a consistent conclusion on whether left ventricular ejection fraction (LVEF) and left atrial diameter (LA diameter) affect AF recurrence after catheter ablation...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29765687/machine-learning-methods-for-locating-re-entrant-drivers-from-electrograms-in-a-model-of-atrial-fibrillation
#17
Max Falkenberg McGillivray, William Cheng, Nicholas S Peters, Kim Christensen
Mapping resolution has recently been identified as a key limitation in successfully locating the drivers of atrial fibrillation (AF). Using a simple cellular automata model of AF, we demonstrate a method by which re-entrant drivers can be located quickly and accurately using a collection of indirect electrogram measurements. The method proposed employs simple, out-of-the-box machine learning algorithms to correlate characteristic electrogram gradients with the displacement of an electrogram recording from a re-entrant driver...
April 2018: Royal Society Open Science
https://www.readbyqxmd.com/read/29761335/-biomarkers-and-atrial-fibrillation-prediction-of-recurrences-and-thromboembolic-events-after-rhythm-control-management
#18
REVIEW
Jelena Kornej, Katja Schumacher, Daniela Husser, Gerhard Hindricks
Atrial fibrillation (AF) is the most common arrhythmia in clinical praxis and is associated with an increased risk for cardio- and cerebrovascular complications leading to an increased mortality. Catheter ablation represents one of the most important and efficient therapy strategies in AF patients. Nevertheless, the high incidence of arrhythmia recurrences after catheter ablation leads to repeated procedures and higher treatment costs. Recently, several scores had been developed to predict rhythm outcomes after catheter ablation...
May 14, 2018: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/29759785/manual-versus-robotic-catheter-ablation-for-the-treatment-of-atrial-fibrillation-the-man-and-machine-trial
#19
Andreas Rillig, Boris Schmidt, Luigi Di Biase, Tina Lin, Leonie Scholz, Christian H Heeger, Andreas Metzner, Daniel Steven, Peter Wohlmuth, Stephan Willems, Chintan Trivedi, Joseph G Galllinghouse, Andrea Natale, Feifan Ouyang, Karl-Heinz Kuck, Roland Richard Tilz
OBJECTIVES: Circumferential pulmonary vein isolation (CPVI) using irrigated radiofrequency is the most frequently used ablation technique for the treatment of atrial fibrillation worldwide. BACKGROUND: To date, no large randomized multicenter trials have evaluated the efficacy and safety of CPVI using robotic navigation (RN) systems compared with the current gold standard of manual ablation (MN). METHODS: In this prospective, international multicenter noninferiority trial, 258 patients with paroxysmal or persistent atrial fibrillation were randomized for CPVI using either RN (RN group, n = 131) or manual ablation (MN group, n = 127)...
August 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29759784/atrial-tachycardias-after-surgical-atrial-fibrillation-ablation-clinical-characteristics-electrophysiological-mechanisms-and-ablation-outcomes-from-a-large-multicenter-study
#20
Rakesh Gopinathannair, Philip L Mar, Muhammad Rizwan Afzal, Luigi Di Biase, Yixi Tu, Thanmay Lakkireddy, Jaimin R Trivedi, Mark S Slaughter, Andrea Natale, Dhanunjaya Lakkireddy
OBJECTIVES: The clinical characteristics, electrophysiological mechanisms, and ablation outcomes of post-surgical atrial fibrillation ablation (SAFA) atrial tachycardias (ATs) have not been studied in a large, multicenter cohort. BACKGROUND: ATs are often seen following SAFA. METHODS: Analysis was performed on 137 patients (age, 62 ± 10 years; 74% male) who underwent catheter ablation for symptomatic post-SAFA AT from 2004 to 2013 at 3 high-volume institutions in the United States...
August 2017: JACC. Clinical Electrophysiology
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