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https://www.readbyqxmd.com/read/28329395/long-term-symptom-improvement-and-patient-satisfaction-following-catheter-ablation-of-supraventricular-tachycardia-insights-from-the-german-ablation-registry
#1
Johannes Brachmann, Thorsten Lewalter, Karl-Heinz Kuck, Dietrich Andresen, Stephan Willems, Stefan G Spitzer, Florian Straube, Burghard Schumacher, Lars Eckardt, Dejan Danilovic, Dierk Thomas, Matthias Hochadel, Jochen Senges
Aims: To analyse outcomes of supraventricular tachycardia (SVT) ablations performed within a prospective German Ablation Quality Registry. Methods and results: Data from 12 566 patients who underwent catheter ablation of SVT between January 2007 and January 2010 to treat atrial fibrillation (AFIB, 37.2% of procedures), atrial flutter (AFL, 29.9%), atrioventricular nodal re-entrant tachycardia (AVNRT, 23.2%), atrioventricular re-entrant tachycardia (6.3%), and focal atrial tachycardia (AT, 3...
March 17, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28323173/outcomes-of-cardiac-resynchronization-therapy-in-patients-with-intermittent-atrial-fibrillation-or-atrial-flutter-in-the-companion-trial
#2
Matthew M Kalscheur, Leslie A Saxon, Byron K Lee, Jonathan S Steinberg, Chaoqun Mei, Kevin A Buhr, David L DeMets, Michael R Bristow, Steven N Singh
BACKGROUND: Controlled clinical trial data are lacking for cardiac resynchronization therapy (CRT) outcomes in patients with advanced heart failure (HF) from reduced left ventricular ejection fraction (HFrEF) and intermittent atrial fibrillation or flutter (AF/AFL). OBJECTIVE: To describe CRT outcomes in patients with intermittent AF/AFL and advanced HF. METHODS: HF outcomes in patients from the COMPANION trial with NYHA Class III or IV HFrEF, LVEF ≤ 0...
March 17, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28297123/embolization-of-watchman-device-following-a-hybrid-radiofrequency-ablation-of-atrial-fibrillation-and-watchman-implantation-procedure
#3
James Gabriels, Stuart Beldner, Mohammad Khan, Jonah Zeitlin, Ram Jadonath, Apoor Patel
A 24-year-old man with a history of type 1 diabetes mellitus, an ischemic left middle cerebral artery stroke and atrial flutter with a prior ablation was found to have paroxysmal atrial fibrillation (AF) on an implantable loop recorder. He was encouraged to continue anticoagulation with apixaban (CHA2 DS2 -VASc: 3). This article is protected by copyright. All rights reserved.
March 15, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28294644/electrocardiogram-changes-and-atrial-arrhythmias-in-individuals-carrying-sodium-channel-scn5a-d1275n-mutation
#4
Sari U M Vanninen, Kjell Nikus, Katriina Aalto-Setälä
INTRODUCTION: The cardiac sodium channel SCN5A regulates atrioventricular and ventricular depolarization as well as cardiac conduction. Patients with cardiac electrical abnormalities have an increased risk of sudden cardiac death (SCD) and cardio-embolic stroke. Optimal management of cardiac disease includes the understanding of association between the causative mutations and the clinical phenotype. A 12-lead electrocardiogram (ECG) is an easy and inexpensive tool for finding risk patients...
March 15, 2017: Annals of Medicine
https://www.readbyqxmd.com/read/28290787/-efficacy-and-safety-of-prolonged-use-of-rivaroxaban-in-patients-with-atrial-flutter-type-i-and-adherence-to-this-treatment
#5
A V Fedoseenko, S A Zenin, O V Kononenko, O V Pyataeva
No abstract text is available yet for this article.
February 2017: Kardiologiia
https://www.readbyqxmd.com/read/28283175/efficacy-of-intravenous-sotalol-for-treatment-of-incessant-tachyarrhythmias-in-children
#6
Xiaomei Li, Yan Zhang, Haiju Liu, He Jiang, Haiyan Ge, Yi Zhang
Our objective was to evaluate the efficacy and safety of intravenous (IV) sotalol in the treatment of incessant tachyarrhythmias in children with normal cardiac function. Eighty-three children admitted to hospital from October 2011 to December 2014 were treated with IV sotalol or IV sotalol plus IV propafenone. The time to conversion to sinus rhythm and maintaining sinus rhythm were evaluated. Blood pressure, heart rate, QTc, PR intervals, and rhythm were monitored; 50 patients (60%) were converted to sinus rhythm with IV sotalol; time to conversion was 12...
February 10, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28279291/clinical-benefit-of-ablating-localized-sources-for-human-atrial-fibrillation-the-indiana-university-firm-registry
#7
John M Miller, Vikas Kalra, Mithilesh K Das, Rahul Jain, Jason B Garlie, Jordan A Brewster, Gopi Dandamudi
BACKGROUND: Mounting evidence shows that localized sources maintain atrial fibrillation (AF). However, it is unclear in unselected "real-world" patients if sources drive persistent atrial fibrillation (PeAF), long-standing persistent atrial fibrillation (LPeAF), or paroxysmal atrial fibrillation (PAF); if right atrial sites are important; and what the long-term success of source ablation is. OBJECTIVES: The aim of this study was to analyze the role of rotors and focal sources in a large academic registry of consecutive patients undergoing source mapping for AF...
March 14, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28275069/atrial-arrhythmias-and-electroanatomical-remodeling-in-patients-with-left-ventricular-assist-devices
#8
Amrish Deshmukh, Gene Kim, Martin Burke, Emeka Anyanwu, Valluvan Jeevanandam, Nir Uriel, Roderick Tung, Cevher Ozcan
BACKGROUND: The incidence, predictors, and impact of atrial arrhythmias along with left atrial structural changes in patients with left ventricular assist devices (LVADs) remain undetermined. METHODS AND RESULTS: All patients who underwent LVAD implantation from 2008 to 2015 at the University of Chicago Medical Center were included. Electronic medical records, electrocardiograms, echocardiograms, and cardiac electrical device interrogations were reviewed. The association of arrhythmias and clinical covariates with survival was evaluated by Kaplan-Meier and Cox proportional hazards analyses...
March 8, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28275066/cardioversion-efficacy-using-pulsed-biphasic-or-biphasic-truncated-exponential-waveforms-a-randomized-clinical-trial
#9
Anders S Schmidt, Kasper G Lauridsen, Kasper Adelborg, Peter Torp, Leif F Bach, Simon M Jepsen, Nete Hornung, Charles D Deakin, Hans Rickers, Bo Løfgren
BACKGROUND: Several different defibrillators are currently used for cardioversion and defibrillation of cardiac arrhythmias. The efficacy of a novel pulsed biphasic (PB) waveform has not been compared to other biphasic waveforms. Accordingly, this study aims to compare the efficacy and safety of PB shocks with biphasic truncated exponential (BTE) shocks in patients undergoing cardioversion of atrial fibrillation or -flutter. METHODS AND RESULTS: This prospective, randomized study included patients admitted for elective direct current cardioversion...
March 8, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28265962/treatment-of-fetal-supraventricular-tachycardia
#10
REVIEW
Bridget B Zoeller
Fetal arrhythmia is a common reason for referral to fetal cardiology. Fetal supraventricular tachycardia can be subdivided into several groups with the most common being re-entrant supraventricular tachycardia and atrial flutter. Fetal tachycardia can lead to hydrops fetalis, which increases the risk of fetal demise, perinatal morbidities, and premature delivery. The diagnosis of fetal tachycardia can be a challenge as a traditional electrocardiogram cannot be completed on a fetus, and other methods must be used by fetal echocardiogram...
January 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28265782/predictors-of-acute-inefficacy-and-the-radiofrequency-energy-time-required-for-cavotricuspid-isthmus-dependent-atrial-flutter-ablation
#11
Jordi Pérez-Rodon, Julian Rodriguez-García, Axel Sarrias-Merce, Nuria Rivas-Gandara, Ivo Roca-Luque, Jaume Francisco-Pascual, Alba Santos-Ortega, Gabriel Martín-Sánchez, Ignacio Ferreira-González, Jose Rodríguez-Palomares, Artur Evangelista-Masip, David García-Dorado, Àngel Moya-Mitjans
PURPOSE: Although cavotricuspid isthmus-dependent atrial flutter (CTI-AFL) ablation is a highly efficacious treatment, a bidirectional CTI block cannot be achieved in some patients. In this study, we sought to determine the predictors of acute inefficacy of CTI-AFL ablation and the predictors of the radiofrequency (RF) energy time required to achieve a complete bidirectional CTI block. METHODS: All consecutive patients who underwent stand-alone CTI-AFL ablation in our institution, except patients with congenital heart disease, were included in this retrospective study...
March 6, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28264715/the-effects-of-rhythm-control-strategies-versus-rate-control-strategies-for-atrial-fibrillation-and-atrial-flutter-a-protocol-for-a-systematic-review-with-meta-analysis-and-trial-sequential-analysis
#12
Naqash J Sethi, Sanam Safi, Emil E Nielsen, Joshua Feinberg, Christian Gluud, Janus C Jakobsen
BACKGROUND: Atrial fibrillation is the most common arrhythmia of the heart with a prevalence of approximately 2% in the western world. Atrial flutter, another arrhythmia, occurs less often with an incidence of approximately 200,000 new patients per year in the USA. Patients with atrial fibrillation and atrial flutter have an increased risk of death and morbidities. The management of atrial fibrillation and atrial flutter is often based on interventions aiming at either a rhythm control strategy or a rate control strategy...
March 6, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28262200/outcomes-of-direct-current-cardioversion-in-adults-with-congenital-heart-disease
#13
Alexander C Egbe, Samuel J Asirvatham, Heidi M Connolly, Suraj Kapa, Christopher V Desimone, Vaibhav R Vaidya, Abhishek J Deshmukh, Arooj R Khan, Christopher J McLeod, Rowlens M Melduni, Naser M Ammash
Few data exist on direct current cardioversion (DCCV) in adult patients with congenital heart disease (CHD). This is a retrospective case-control study of 279 adults with CHD and 279 adults without CHD (control group) who had elective DCCV for atrial arrhythmias at Mayo Clinic, 2001 to 2013. Control patients were matched by gender and arrhythmia type. The objective was to compare DCCV procedural failure (failure to terminate the presenting arrhythmia) and arrhythmia recurrence (AR). In the CHD group (mean age 55 ± 20 years; men 166 [59%]), the most common diagnosis was Fontan palliation (61; 22%)...
February 9, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28258848/conduction-recovery-following-catheter-ablation-in-patients-with-recurrent-atrial-fibrillation-and-heart-failure
#14
Matteo Anselmino, Mario Matta, T Jared Bunch, Martin Fiala, Marco Scaglione, Georg Nölker, Pierre Qian, Thomas Neumann, Federico Ferraris, Fiorenzo Gaita
BACKGROUND: Atrial fibrillation (AF) catheter ablation is increasingly proposed for patients suffering from AF and concomitant heart failure (HF). However, the optimal ablation strategy remains controversial. We performed this study to assess the prevalence of pulmonary vein (PV) or linear lesion reconnection in HF patients undergoing repeated procedures. METHODS AND RESULTS: At seven high-volume centres, 165 patients with HF underwent a repeat procedure after a first AF ablation including PV isolation alone (47 patients, group A) or PV isolation plus left atrial lines (118 patients, group B)...
February 22, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28245195/characterization-of-rate-and-regularity-of-ventricular-response-during-atrial-tachyarrhythmias-insight-on-atrial-and-nodal-determinants
#15
Michela Masè, Marcello Disertori, Massimiliano Marini, Flavia Ravelli
Ventricular rate and regularity affect hemodynamic stability and are targets of rate control therapy in patients with atrial flutter (AFL) and atrial fibrillation (AF). Nevertheless the characteristics and determinants of ventricular response during these atrial arrhythmias are poorly understood. This work aims to investigate the effects of changes in atrial activity and atrioventricular (AV) conduction patterns on ventricular response in patients with atrial tachyarrhythmias by a combined quantitative analysis of atrial and ventricular time series...
February 28, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28240435/ventricular-tachyarrhythmias-in-patients-with-hypertrophic-cardiomyopathy-and-defibrillators-triggers-treatment-and-implications
#16
Mark S Link, Katy Bockstall, Jonathan Weinstock, Alawi A Alsheikh-Ali, Christopher Semsarian, N A Mark Estes, Paolo Spirito, Tammy S Haas, Ethan J Rowin, Martin S Maron, Barry J Maron
INTRODUCTION: Triggers and ICD interventions of ventricular arrhythmias in patients with hypertrophic cardiomyopathy (HCM) offers insight into mechanisms and treatment. METHODS AND RESULTS: Intracardiac ICD electrograms from 71 HCM patients in the HCM I and II studies were analyzed by 3 individuals. Rhythms were defined as VF (polymorphic ventricular arrhythmia), VT (monomorphic ventricular tachycardia), and ventricular flutter (VFL) (VT ≥ 240 bpm). Physical activity and rhythm preceding the arrhythmia were ascertained...
February 27, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28238239/ablation-of-macro-re-entrant-atrial-arrhythmia-late-after-surgical-aortic-valve-replacement
#17
Michał Orczykowski, Paweł Derejko, Piotr Urbanek, Robert Bodalski, Katarzyna Kodziszewska, Radosław Sierpiński, Rafał Baranowski, Maria Bilińska, Łukasz Szumowski
BACKGROUND: Re-entrant atrial arrhythmias are common in patients after cardiac surgery. To date, however, no studies have reported the safety and efficacy of radiofrequency (RF) ablation of macro-re-entrant atrial arrhythmias in a unique, homogeneous group of patients after surgical replacement of the aortic valve and single right atriotomy. METHODS: Among over 4,000 RF catheter ablations performed at the authors' center between 2008 and 2014, eight patients (seven males, one female; mean age 55...
September 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28237125/biomarkers-of-atrial-cardiopathy-and-atrial-fibrillation-detection-on-mobile-outpatient-continuous-telemetry-after-embolic-stroke-of-undetermined-source
#18
Denise Sebasigari, Alexander Merkler, Yang Guo, Gino Gialdini, Benjamin Kummer, Morgan Hemendinger, Christopher Song, Antony Chu, Shawna Cutting, Brian Silver, Mitchell S V Elkind, Hooman Kamel, Karen L Furie, Shadi Yaghi
BACKGROUND: Biomarkers of atrial dysfunction or "cardiopathy" are associated with embolic stroke risk. However, it is unclear if this risk is mediated by undiagnosed paroxysmal atrial fibrillation or flutter (AF). We aim to determine whether atrial cardiopathy biomarkers predict AF on continuous heart-rhythm monitoring after embolic stroke of undetermined source (ESUS). METHODS: This was a single-center retrospective study including all patients with ESUS undergoing 30 days of ambulatory heart-rhythm monitoring to look for AF between January 1, 2013 and December 31, 2015...
February 22, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28228428/the-effect-of-aggressive-blood-pressure-control-on-the-recurrence-of-atrial-fibrillation-after-catheter-ablation-a-randomized-open-label-clinical-trial-substrate-modification-with-aggressive-blood-pressure-control-smac-af
#19
Ratika Parkash, George A Wells, John L Sapp, Jeffrey S Healey, Jean-Claude Tardif, Isabelle Greiss, Léna Rivard, Jean-Francois Roux, Lorne Gula, Isabelle Nault, Paul G Novak, David H Birnie, Andrew C Ha, Stephen B Wilton, Iqwal Mangat, Christopher J Gray, Martin J Gardner, Anthony S L Tang
Background -Radiofrequency catheter ablation for atrial fibrillation has become an important therapy for AF, however recurrence rates remain high. We proposed to determine whether aggressive blood pressure (BP) lowering prevents recurrent atrial fibrillation (AF) after catheter ablation in patients with AF and a high symptom burden. Methods -We randomly assigned 184 patients with AF and a BP greater than 130/80 mmHg to aggressive BP (target <120/80 mm Hg) or standard BP treatment (target <140/90 mmHg) prior to their scheduled AF catheter ablation...
February 22, 2017: Circulation
https://www.readbyqxmd.com/read/28225684/assessing-the-risks-associated-with-mri-in-patients-with-a-pacemaker-or-defibrillator
#20
MULTICENTER STUDY
Robert J Russo, Heather S Costa, Patricia D Silva, Jeffrey L Anderson, Aysha Arshad, Robert W W Biederman, Noel G Boyle, Jennifer V Frabizzio, Ulrika Birgersdotter-Green, Steven L Higgins, Rachel Lampert, Christian E Machado, Edward T Martin, Andrew L Rivard, Jason C Rubenstein, Raymond H M Schaerf, Jennifer D Schwartz, Dipan J Shah, Gery F Tomassoni, Gail T Tominaga, Allison E Tonkin, Seth Uretsky, Steven D Wolff
Background The presence of a cardiovascular implantable electronic device has long been a contraindication for the performance of magnetic resonance imaging (MRI). We established a prospective registry to determine the risks associated with MRI at a magnetic field strength of 1.5 tesla for patients who had a pacemaker or implantable cardioverter-defibrillator (ICD) that was "non-MRI-conditional" (i.e., not approved by the Food and Drug Administration for MRI scanning). Methods Patients in the registry were referred for clinically indicated nonthoracic MRI at a field strength of 1...
February 23, 2017: New England Journal of Medicine
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