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Journal of Cardiovascular Electrophysiology

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https://www.readbyqxmd.com/read/28800192/efficacy-and-safety-of-driver-guided-catheter-ablation-for-atrial-fibrillation-a-systematic-review-and-meta-analysis
#1
F Daniel Ramirez, David H Birnie, Girish M Nair, Agnieszka Szczotka, Calum J Redpath, Mouhannad M Sadek, Pablo B Nery
INTRODUCTION: Targeting localized drivers (electrical rotors or focal impulses) during catheter ablation for atrial fibrillation (AF) has been proposed as a strategy to improve procedural success. However, the strength and quality of the evidence to support this approach is unclear. METHODS AND RESULTS: Clinical studies reporting efficacy or safety outcomes of driver-guided ablation for AF were identified in Medline, Embase, the Cochrane Central Register of Controlled Trials, the Cochrane Database of Systematic Reviews, Pubmed, and conference abstracts from major scientific meetings...
August 11, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28800179/short-term-outcomes-of-atrial-flutter-ablation
#2
Byomesh Tripathi, Shilpkumar Arora, Abhishek Mishra, Vishwa Reddy Kundoor, Sopan Lahewala, Varun Kumar, Mahek Shah, Dhairya Lakhani, Harshil Shah, Nilay V Patel, Nileshkumar J Patel, Mihir Dave, Abhishek Deshmukh, Sattur Sudhakar, Radha Gopalan
BACKGROUND: Understanding the factors associated with early readmissions following atrial flutter (AFL) ablation is critical to reduce the cost and improving the quality of life in AFL patients. METHOD: The study cohort was derived from the National readmission database 2013-14. International Classification of Diseases, 9th Revision (ICD-9-CM) diagnosis code 427.32 and procedure code 37.34 were used to identify AFL and catheter ablation respectively. The primary and secondary outcomes were 90-day readmission and complications including in-hospital mortality...
August 11, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28800178/outcomes-of-catheter-ablation-of-ventricular-tachycardia-with-mechanical-hemodynamic-support-an-analysis-of-the-medicare-database
#3
Arash Aryana, André d'Avila, Christina L Cool, Marc A Miller, Fermin C Garcia, Gregory E Supple, Srinivas R Dukkipati, Dhanunjaya Lakkireddy, T Jared Bunch, Mark R Bowers, Padraig Gearoid O'Neill, Vivek Y Reddy, Francis E Marchlinski
INTRODUCTION: There is a paucity of data in favor of mechanical support during catheter ablation of ventricular tachycardia (VT). This study investigated the outcomes of VT ablation associated with mechanical support using percutaneous ventricular assist device (PVAD) versus intra-aortic balloon pump (IABP). METHODS AND RESULTS: We retrospectively examined the outcomes of patients who underwent VT ablation associated with PVAD versus IABP from 2010-2013, captured by the Medicare Inpatient Standard Analytic File database...
August 11, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28800177/exercise-stress-test-reveals-ineligibility-for-subcutaneous-implantable-cardioverter-defibrillator-in-patients-with-brugada-syndrome
#4
Motomi Tachibana, Nobuhiro Nishii, Hiroshi Morita, Koji Nakagawa, Atsuyuki Watanabe, Kazufumi Nakamura, Hiroshi Ito
BACKGROUND: The eligibility of patients with Brugada syndrome (BrS) for implantation of a subcutaneous implantable cardioverter defibrillator (S-ICD) is not well known. This study aimed to clarify the eligibility of BrS patients for S-ICD using electrocardiography (ECG) at rest and during exercise testing. We also analyzed factors associated with ineligibility for S-ICD from standard 12-lead ECG at rest. METHODS: We enrolled 110 consecutive BrS patients who visited Okayama university hospital from December 2015 to December 2016...
August 11, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28800176/catheter-ablation-of-left-atrial-arrhythmias-on-uninterrupted-oral-anticoagulation-with-vitamin-k-antagonists-how-is-the-relationship-between-international-normalized-ratio-activated-clotting-time-and-procedure-related-complications
#5
Marc Kottmaier, Felix Bourier, Verena Semmler, Martha Telishevska, Katharina Koch-Büttner, Carsten Lennerz, Sarah Lengauer, Marielouise Kornmayer, Elena Rousseva, Stephanie Brooks, Amir Brkic, Christian Grebmer, Christoph Kolb, Gabriele Hessling, Isabel Deisenhofer, Tilko Reents
BACKGROUND: Ablation of atrial fibrillation (AF) on uninterrupted phenprocoumon reduces periprocedural thromboembolic and bleeding complications. Heparin is administered intraprocedurally to achieve activated clotting times (ACT) of 300-400 seconds. We investigated the effect of international normalized ratio (INR) on ACT and intraprocedural heparin requirements. Moreover, safety of a target ACT of 250-300 seconds was investigated. METHODS AND RESULTS: We studied 949 patients referred for AF or left atrial tachycardia ablation...
August 11, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28800169/global-multi-electrode-contact-mapping-plus-ablation-with-a-single-catheter-preclinical-and-preliminary-experience-in-humans-with-atrial-fibrillation
#6
Hans Kottkamp, Fabian Moser, Andreas Rieger, Doreen Schreiber, Christian Pönisch, Monica Trofin
INTRODUCTION: One question for the technological advancement of catheter ablation of atrial fibrillation (AF) is whether a creative new concept can combine and even improve the diagnostic mapping options of single-tip and basket catheters with the simplicity of the use of balloon catheters for ablation. Herein, we describe the first in-human experience with a single catheter offering such a complete solution. METHODS AND RESULTS: A new catheter (Globe®) with a distal multi-electrode array consisting of 16 ribs with 122 gold-plated electrodes was used...
August 11, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28791747/ecg-morphology-of-premature-ventricular-contractions-predicts-presence-of-myocardial-fibrotic-substrate-on-cardiac-magnetic-resonance-imaging-in-patients-undergoing-ablation
#7
Sabrina Oebel, Borislav Dinov, Arash Arya, Sebastian Hilbert, Philipp Sommer, Andreas Bollmann, Gerhard Hindricks, Ingo Paetsch, Cosima Jahnke
BACKGROUND: The most likely origin of PVCs may be deduced from surface ECG analysis while planning an electrophysiological study (EPS). Apart from purely benign forms of increased ventricular ectopy, myocardial substrate (e.g., regional fibrosis) may be present in certain cases, which will significantly impact the ablation approach. CMR imaging can reliably identify fibrotic target lesions and, hence, may assist in adequate patient selection and procedural planning. METHODS AND RESULTS: We analyzed 101 patients (59% male, mean age 57...
August 9, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28776824/pathophysiology-of-reflex-syncope-a-review
#8
REVIEW
Wayne O Adkisson, David G Benditt
In this correspondence the pathophysiology of reflex syncope (vasovagal syncope, carotid sinus syndrome and situational syncope) is reviewed, including clarification of the nomenclature. This article is protected by copyright. All rights reserved.
August 4, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28776822/ripple-mapping-initial-multicenter-experience-of-an-intuitive-approach-to-overcoming-the-limitations-of-3d-activation-mapping
#9
Vishal Luther, Nuno Cortez-Dias, Luis Carpinteiro, João de Sousa, Richard Navaratnum Balasubramaniam, Sharad C Agarwal, David Farwell, Solomon Mark Sopher, Girish Babu, Richard Till, Nikki Jones, Stuart Tan, Anthony Chow, Martin Lowe, Jem Lane, Naveen Pappachan, Nick Wf Linton, Prapa Kanagaratnam
BACKGROUND: Ripple Mapping (RM) displays electrograms as moving bars over a 3D surface displaying bipolar voltage, and has shown in a single-center series to be effective for atrial tachycardia (AT) mapping without annotation of local activation time or window-of-interest assignment. We tested the reproducibility of these findings in operators naive to RM, using it for the first time in post ablation AT. METHODS: Maps were collected with multielectrode catheters and CARTO ConfiDENSE...
August 4, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28744991/utility-of-high-density-multielectrode-mapping-during-ablation-of-scar-related-ventricular-tachycardia
#10
Óscar Cano, Diego Plaza, Assumpció Saurí, Joaquín Osca, Pau Alonso, Ana Andrés, María-José Sancho-Tello, Luis Martínez-Dolz
INTRODUCTION: Multielectrode mapping catheters (MEMC) allow the performance of high resolution and density maps but the utility of these catheters in ventricular tachycardia (VT) ablation procedures has not been yet widely described. We sought to evaluate the utility of a MEMC during scar-related VT ablation procedures. METHODS: 85 consecutive scar-related VT ablation procedures were performed in 81 patients. In the first 26 procedures, a standard 3.5 mm tip linear catheter was employed for endocardial/epicardial mapping (control group)...
July 26, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28744977/supraventricular-premature-beats-and-risk-of-new-onset-atrial-fibrillation-in-coronary-artery-disease
#11
Santeri Nortamo, Tuomas V Kenttä, Olavi Ukkola, Heikki V Huikuri, Juha S Perkiömäki
INTRODUCTION: The significance of premature atrial contraction (PAC) count and supraventricular runs (SVR) for the risk of development of new-onset atrial fibrillation (AF) in patients with coronary artery disease (CAD) is not well established. METHODS: The Innovation to Reduce Cardiovascular Complications of Diabetes at the Intersection (ARTEMIS) study cohort consisted of 1946 patients with CAD who underwent clinical and echocardiographic examinations, 24-hour ambulatory ECG monitoring and laboratory tests...
July 26, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28744959/predicting-appropriate-shocks-in-patients-with-heart-failure-patient-level-meta-analysis-from-scd-heft-and-madit-ii
#12
Emily P Zeitler, Sana M Al-Khatib, Daniel J Friedman, Joo Yoon Han, Jeanne E Poole, Gust H Bardy, J Thomas Bigger, Alfred E Buxton, Arthur J Moss, Kerry L Lee, Paul Dorian, Riccardo Cappato, Alan H Kadish, Peter J Kudenchuk, Daniel B Mark, Lurdes Y T Inoue, Gillian D Sanders
BACKGROUND: No precise tools exist to predict appropriate shocks in patients with a primary prevention ICD. We sought to identify characteristics predictive of appropriate shocks in patients with a primary prevention implantable cardioverter defibrillator (ICD). METHODS: Using patient-level data from the Multicenter Automatic Defibrillator Implantation Trial II (MADIT II) and the Sudden Cardiac Death in Heart Failure Trial (SCD-HeFT), we identified patients with any appropriate shock...
July 26, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28744928/evaluation-of-left-atrial-thrombus-prior-to-catheter-ablation-of-atrial-fibrillation-is-it-time-for-an-individualized-approach
#13
EDITORIAL
Avishag Laish-Farkash, Mahmoud Suleiman
No abstract text is available yet for this article.
July 26, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28730712/slow-conduction-through-an-arc-of-block-a-basis-for-arrhythmia-formation-post-myocardial-infarction
#14
Eugene Patterson, Benjamin J Scherlag, Edward J Berbari, Ralph Lazzara
INTRODUCTION: The electrophysiologic basis for characteristic rate-dependent, constant-late-coupled (390+54 msec) premature ventricular beats (PVBs) present 4-5 days following coronary artery occlusion were examined in 108 anesthetized dogs. METHODS AND RESULTS: Fractionated/double potentials were observed in injured zone bipolar and composite electrograms at prolonged sinus cycle lengths (1296 ± 396 msec). At shorter cycle lengths, conduction of the delayed potential decremented, separating from the initial electrogram by a progressively prolonged isoelectric interval...
July 21, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28730651/a-comparison-of-the-electrophysiologic-and-electroanatomic-characteristics-between-the-right-and-left-atrium-in-persistent-atrial-fibrillation-is-the-right-atrium-a-window-into-the-left
#15
Sandeep Prabhu, Aleksandr Voskoboinik, Alex Ja McLellan, Kah Y Peck, Bupesh Pathik, Chrishan J Nalliah, Geoff R Wong, Sonia M Azzopardi, Geoffrey Lee, Justin Mariani, Liang-Han Ling, Andrew J Taylor, Jonathan M Kalman, Peter M Kistler
INTRODUCTION: The right atrium (RA) is readily accessible; however, it is unclear whether changes in the RA are representative of the LA. We performed detailed bi-atrial electroanatomic mapping to determine the electrophysiological relationship between the atria. METHODS AND RESULTS: Consecutive patients with persistent AF underwent bi-atrial electroanatomical mapping with a contact force catheter acquiring points with a CF > 10 g prior to ablation. Points were analyzed for tissue voltage, complex electrograms, low voltage (< 0...
July 21, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28730649/focal-atrial-tachycardia-from-extremely-high-level-of-superior-vena-cava
#16
Kenichi Tokutake, Seigo Yamashita, Michihiro Yoshimura, Teiichi Yamane
No abstract text is available yet for this article.
July 21, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28727256/localization-of-ventricular-arrhythmias-the-importance-of-evaluating-the-frontal-axis
#17
EDITORIAL
James E Ip
No abstract text is available yet for this article.
July 20, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28727203/the-association-between-acute-mental-stress-and-abnormal-left-atrial-electrophysiology
#18
Wesley T O'Neal, Muhammad Hammadah, Pratik B Sandesara, Zakaria Almuwaqqat, Ayman Samman-Tahhan, Mohamad M Gafeer, Naser Abdelhadi, Kobina Wilmot, Ibhar Al Mheid, Douglas Bremner, Michael Kutner, Elsayed Z Soliman, Amit J Shah, Arshed A Quyyumi, Viola Vaccarino
BACKGROUND: Acute stress may trigger atrial fibrillation (AF), but the underlying mechanisms are unclear. We examined if acute mental stress results in abnormal left atrial electrophysiology as detected by more negative deflection of P-wave terminal force in lead V1 (PTFV1 ), a well-known marker of AF risk. METHODS AND RESULTS: We examined this hypothesis in 422 patients (mean age = 56±10 years; 61% men; 44% white) with stable coronary heart disease who underwent mental (speech task) stress testing...
July 20, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28727202/influence-of-the-left-atrial-contact-areas-on-fixed-low-voltage-zones-during-atrial-fibrillation-and-sinus-rhythm-in-persistent-atrial-fibrillation
#19
Shiro Nakahara, Yuichi Hori, Naoki Nishiyama, Yasuo Okumura, Reiko Fukuda, Sayuki Kobayashi, Takaaki Komatsu, Yoshihiko Sakai, Isao Taguchi
BACKGROUND: Atrial low-voltage zones (LVZ) are suggested as important factors for maintaining persistent atrial fibrillation (PsAF). The relationship between LVZs and left atrial (LA) contact areas (CoAs) is still unclear. OBJECTIVE: To assess whether CoA regions were involved in atrial substrate properties maintaining PsAF. METHODS: A total of 50 patients with PsAF (36 long-lasting) were analyzed. Three representative CoA detection areas (ascending aorta-anterior-LA, descending aorta-left pulmonary vein antrum, and vertebrae-posterior-LA) were registered on the mapping geometry...
July 20, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28727199/can-the-electrocardiogram-distinguish-foci-from-rotors-during-ventricular-fibrillation
#20
EDITORIAL
Bradley J Roth
No abstract text is available yet for this article.
July 20, 2017: Journal of Cardiovascular Electrophysiology
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