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Tachycardia ablation

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https://www.readbyqxmd.com/read/28350861/efficacy-and-effects-on-cardiac-function-of-radiofrequency-catheter-ablation-vs-direct-current-cardioversion-of-persistent-atrial-fibrillation-with-left-ventricular-systolic-dysfunction
#1
Maojing Wang, Shanglang Cai, Wei Ding, Yujie Deng, Qing Zhao
OBJECTIVE: To evaluate the effect of catheter ablation vs. direct current synchronized cardioversion (DCC) in patients with persistent atrial fibrillation (AF) and left ventricular systolic dysfunction, and to define baseline features of patients that will get more benefit from ablation. METHODS: From July 2013 to October 2014, 97 consecutive single-center patients with persistent AF and symptomatic heart failure (left ventricular ejection fraction (LVEF) <50%) underwent DCC followed by amiodarone (n = 40) or circumferential pulmonary vein isolation (PVI; n = 57) according to patient's preference were recruited in the study...
2017: PloS One
https://www.readbyqxmd.com/read/28340160/safety-of-fluoroscopy-guided-transseptal-approach-for-ablation-of-left-sided-arrhythmias
#2
Zviad Matoshvili, Hamid Bastani, Tara Bourke, Frieder Braunschweig, Nikola Drca, Kristjan Gudmundsson, Per Insulander, Anette Jemtrén, Göran Kennebäck, Ott Saluveer, Jonas Schwieler, Jari Tapanainen, Christer Wredlert, Mats Jensen-Urstad
Aims: The transseptal approach is used for left atrial access during the ablation of atrial fibrillation (AF) and other left-sided arrhythmia substrates. Transseptal puncture (TP) is commonly performed with fluoroscopic guidance, contrast injection, and pressure monitoring. In many centres, additional techniques [intracardiac echocardiography (ICE), transoesophageal echocardiography (TEE), radiofrequency needle] are used to facilitate TP but its use adds costs. In this retrospective study, we studied the safety and complication rate when TP was routinely done with fluoroscopic guidance, contrast injection, and pressure monitoring using ICE or TEE only in selected cases...
March 10, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28340121/atrioventricular-nodal-echoes-over-a-wide-echo-window-as-a-therapeutic-end-point-for-the-catheter-guided-radiofrequency-ablation-of-atrioventricular-nodal-reentrant-tachycardia-a-prospective-study
#3
Mohammad Hossein Nikoo, Armin Attar, Mohammad Pourmontaseri, Mohammad Vahid Jorat, Mohammad Kafi
Aims: In previous retrospective studies, it was shown that the presence of residual single atrioventricular node (AVN) echoes with an echo zone longer than 30 ms may increase the rate of recurrence after radiofrequency ablation (RFA) of slow pathway in patients with AVN reentrant tachycardia (AVNRT). Based on that, some centres perform additional RFA in these patients. However, this opinion has never been tested prospectively and many centres do not perform re-ablation in these patients...
March 15, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28340054/outcomes-of-atrial-arrhythmia-radiofrequency-catheter-ablation-in-patients-with-ebstein-s-anomaly
#4
Abdallah Hassan, Nicholas Y Tan, Htin Aung, Heidi M Connolly, David O Hodge, Emily R Vargas, Bryan C Cannon, Douglas L Packer, Samuel J Asirvatham, Christopher J McLeod
Aims: Atrial arrhythmias are common in patients with Ebstein's anomaly (EA) despite cardiac surgical repair and concomitant Maze procedures. We aimed to evaluate the outcome of radiofrequency catheter ablation in this group of patients. Methods and results: All patients with EA and atrial arrhythmias who underwent catheter ablation for atrial arrhythmias between 1/1999 and 1/2016 were included. Atrial arrhythmia recurrence was identified as the primary outcome; secondary outcomes included repeat ablation, need for antiarrhythmic medications after ablation, and death...
February 27, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28339842/epicardial-ablation-may-not-be-necessary-in-all-patients-with-arrhythmogenic-right-ventricular-dysplasia-cardiomyopathy-and-frequent-ventricular-tachycardia
#5
A Müssigbrodt, E Efimova, H Knopp, L Bertagnolli, N Dagres, S Richter, D Husser, A Bollmann, G Hindricks, A Arya
No abstract text is available yet for this article.
February 28, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28339750/downstream-overdrive-pacing-and-intracardiac-concealed-fusion-to-guide-rapid-identification-of-atrial-tachycardia-after-atrial-fibrillation-ablation
#6
Chirag R Barbhaiya, Samuel H Baldinger, Saurabh Kumar, Jason S Chinitz, Alan D Enriquez, Roy John, William G Stevenson, Gregory F Michaud
Aims: Atrial tachycardia (AT) related to atrial fibrillation (AF) ablation frequently poses a diagnostic challenge. Downstream overdrive pacing (DOP) can be used to rapidly detect reentry and assess proximity of a pacing site to an AT circuit or focus. We hypothesized that systematic DOP using multielectrode catheters would facilitate AT mapping. Methods and results: DOP identified constant fusion when the post-pacing interval (PPI)-tachycardia cycle length (TCL) <40 ms and stimulus to adjacent upstream atrial electrogram interval >75% of TCL...
February 17, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28339558/impact-of-sedation-vs-general-anaesthesia-on-percutaneous-epicardial-access-safety-and-procedural-outcomes
#7
Ammar M Killu, Alan Sugrue, Thomas M Munger, David O Hodge, Siva K Mulpuru, Christopher J McLeod, Douglas L Packer, Samuel J Asirvatham, Paul A Friedman
Aims: Patient movement while under moderate/deep sedation may complicate percutaneous epicardial access (EpiAcc), mapping and ablation. We sought to compare procedural outcomes in patients undergoing EpiAcc under sedation vs. general anaesthesia (GA) for ablation. Methods and results: Patients undergoing EpiAcc between January 2004 and July 2014 were included. Safety, procedural, and clinical outcomes were compared between patients undergoing EpiAcc under sedation or GA for ventricular tachycardia or premature ventricular complex ablation...
November 15, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
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
#8
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/28329357/catheter-ablation-of-supraventricular-tachycardias-where-we-have-been-where-we-are-and-where-we-are-going
#9
Douglas P Zipes
No abstract text is available yet for this article.
March 17, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28328585/mechanical-support-with-impella-during-malignant-arrhythmia-ablation-a-case-report-on-the-growing-trend-in-the-electrophysiology-laboratory
#10
Adam C Adler, Ramesh Kodavatiganti
Congenitally corrected transposition of the great arteries is a rare form of congenital heart disease in which the persistence of the right ventricle as the systemic ventricle leads to heart failure, tricuspid valve insufficiency, and arrhythmia. Supraventricular arrhythmias are especially common in these patients. We discuss the anesthetic management of a 33-year-old patient with congenitally corrected transposition of the great arteries who required a ventricular assist device to maintain cardiac output during ablation of supraventricular tachyarrythmia...
March 17, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28324925/non-invasive-imaging-of-ventricular-activation-during-pacing-and-arrhythmia-methods-and-validation
#11
Long Yu, Steven Pogwizd, Bin He
Cardiovascular disease continued to be a leading killer world widely. Each year, about 400,000 cases of sudden cardiac arrest are reported in the U.S. alone. Clinically, radio-frequency ablative procedure has become widely applied in the treatment of ventricular arrhythmia. Non-invasive approaches have been demonstrated to be able to provide important information on the arrhythmogenesis and potentially assist in the clinical practice. In this work, we develop and validate a novel temporal sparse based imaging method, Cardiac Electrical Sparse Imaging (CESI)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28318819/slow-pathway-radiofrequency-ablation-using-magnetic-navigation-a-description-of-technique-and-retrospective-case-analysis
#12
Abhishek Bhaskaran, Maha Albarri, Neil Ross, Sara Al Raisi, Rahul Samantha, Leonette Roode, Fazlur Nadri, Jeanette Ng, Stuart Thomas, Aravinda Thiagalingam, Pramesh Kovoor
BACKGROUND: The Magnetic Navigation System (MNS) catheter was shown to be stable in the presence of significant cardiac wall motion and delivered more effective lesions compared to manual control. This stability could potentially make AV junctional reentrant tachycardia (AVNRT) ablation safer. The aim of this study is to describe the method of mapping and ablation of AVNRT with MNS and 3-D electro-anatomical mapping system (CARTO, Biosense Webster, Diamond bar, CA, USA) anatomical mapping, with a view to improve the safety of ablation...
February 21, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28316148/ablation-of-complex-fractionated-electrograms-with-or-without-additional-linear-lesions-for-persistent-atrial-fibrillation-the-adline-trial
#13
Sonia Ammar-Busch, Felix Bourier, Tilko Reents, Verena Semmler, Marta Telishevska, Susanne Kathan, Monika Hofmann, Gabriele Hessling, Isabel Deisenhofer
BACKGROUND: For persistent atrial fibrillation (AF) ablation, different strategies including complex fractionated atrial electrograms (CFAE) ablation and linear lesions (LL) have been used in addition to pulmonary vein isolation (PVI). However, it is still a matter of debate if extended substrate modification improves long-term outcome. The aim of this study was to determine the benefit of LL in addition to PVI and CFAE ablation regarding freedom from arrhythmia recurrence in patients with persistent AF...
March 18, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28315135/repeat-procedures-using-the-second-generation-cryoballoon-for-recurrence-of-atrial-fibrillation-after-initial-ablation-with-conventional-radiofrequency
#14
Valentina De Regibus, Saverio Iacopino, Juan-Pablo Abugattas, Giacomo Mugnai, Darragh Moran, Erwin Ströker, Hugo-Enrique Coutino, Ken Takarada, Rajin Choudhury, Gaetano Paparella, Vincent Umbrain, Pedro Brugada, Carlo de Asmundis, Gian-Battista Chierchia
PURPOSE: Pulmonary vein isolation is now widely accepted for the treatment of symptomatic atrial fibrillation refractory to antiarrhythmic drugs. However, multiple procedures are often required to significantly reduce atrial fibrillation (AF) recurrence. In the present study, we analyzed the acute results and the midterm clinical outcome of a second-generation cryoballoon ablation (CB-A) performed during repeat procedures for recurrence of AF after an initial procedure performed with conventional radiofrequency (RF)...
March 17, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28298801/stellate-ganglion-block-as-rescue-therapy-in-refractory-ventricular-tachycardia
#15
M C Rajesh, K V Deepa, E K Ramdas
Pain physicians and anesthesiologists routinely perform stellate ganglion block for the treatment of painful upper extremity sympathetic dystrophy. Close proximity of ganglion to vascular structures warrants some expertise and training in the procedure. Off late, successful use of the technique in intractable ventricular tachyarrhythmias has come in literature. We have few cases wherein we could successfully ablate intractable ventricular tachycardia with stellate block which was refractory to repeated shocks...
January 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/28298182/electrocardiogram-his-bundle-potentials-can-be-recorded-noninvasively-beat-by-beat-on-surface-electrocardiogram
#16
Gaopin Wang, Renguang Liu, Qinghua Chang, Zhaolong Xu, Yingjie Zhang, Dianzhu Pan
BACKGROUND: The micro waveform of His bundle potential can't be recorded beat-to-beat on surface electrocardiogram yet. We have found that the micro-wavelets before QRS complex may be related to atrioventricular conduction system potentials. This study is to explore the possibility of His bundle potential can be noninvasively recorded on surface electrocardiogram. METHODS: We randomized 65 patients undergoing radiofrequency catheter ablation of paroxysmal superventricular tachycardia (exclude overt Wolff-Parkinson-White syndrome) to receive "conventional electrocardiogram" and "new electrocardiogram" before the procedure...
March 15, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28292755/early-catheter-ablation-for-unstable-ventricular-tachycardia-still-too-early-to-tell
#17
EDITORIAL
John L Sapp, Ratika Parkash, George Wells
No abstract text is available yet for this article.
March 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28292752/fascicular-ventricular-tachycardia-originating-from-papillary-muscles-purkinje-network-involvement-in-the-reentrant-circuit
#18
Yuki Komatsu, Akihiko Nogami, Kenji Kurosaki, Itsuro Morishima, Keita Masuda, Tomoya Ozawa, Takashi Kaneshiro, Yuichi Hanaki, Yasutoshi Shinoda, Ahmed Karim Talib, Shinya Kowase, Yukio Sekiguchi, Kazutaka Aonuma
BACKGROUND: Verapamil-sensitive fascicular ventricular tachycardia (FVT) has been demonstrated to be a reentrant mechanism using the Purkinje network as a part of its reentrant circuit. Although the papillary muscles (PMs) are implicated in arrhythmogenic structure, reentrant FVT originating from the PMs has not been well defined. METHODS AND RESULTS: We studied 13 patients in whom FVT was successfully eliminated by ablation at the posterior PMs (n=8; PPM-FVT) and anterior PMs (n=5; APM-FVT)...
March 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28292751/impact-of-substrate-modification-by-catheter-ablation-on-implantable-cardioverter-defibrillator-interventions-in-patients-with-unstable-ventricular-arrhythmias-and-coronary-artery-disease-results-from-the-multicenter-randomized-controlled-sms-substrate-modification
#19
Karl-Heinz Kuck, Roland Richard Tilz, Thomas Deneke, Boris A Hoffmann, Rodolfo Ventura, Peter Steen Hansen, Markus Zarse, Stefan H Hohnloser, Josef Kautzner, Stephan Willems
BACKGROUND: The implantable cardioverter-defibrillator (ICD) is the standard therapy to prevent sudden cardiac death in patients with coronary artery disease and unstable ventricular tachyarrhythmias. The prospective multinational SMS (Substrate Modification Study) was designed to assess whether prophylactic ablation of the arrhythmogenic substrate reduces or prevents the recurrence of ventricular tachycardia/ventricular fibrillation in such patients. METHODS AND RESULTS: Of 111 patients included in an intention-to-treat analysis, 54 were randomly assigned catheter ablation plus ICD implantation (ablation group: 68±8 years; 47 men), whereas 57 were assigned ICD implantation without catheter ablation (ICD-only group: 66±8 years; 46 men)...
March 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28288961/feasibility-of-rapid-linear-endocardial-and-epicardial-ventricular-ablation-using-an-irrigated-multipolar-radiofrequency-ablation-catheter
#20
Babak Nazer, Tomos E Walters, Srikant Duggirala, Edward P Gerstenfeld
BACKGROUND: A common strategy for ablation of scar-based ventricular tachycardia is delivering multiple lesions in a linear pattern. METHODS AND RESULTS: We tested the efficacy of a novel linear irrigated multipolar ablation catheter capable of creating linear lesions with a single application. Healthy swine underwent endocardial and epicardial linear ablation using a novel linear irrigated ablation catheter; control animals underwent focal lesions in a linear pattern over 3...
March 2017: Circulation. Arrhythmia and Electrophysiology
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