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Journal of Cardiovascular Electrophysiology

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https://www.readbyqxmd.com/read/28884931/percutaneous-ventricular-assist-devices-for-catheter-ablation-of-ventricular-tachycardia-in-structural-heart-disease-a-conditio-sine-qua-non
#1
EDITORIAL
Jorge Romero, Luigi Di Biase
No abstract text is available yet for this article.
September 8, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28884923/low-voltage-areas-detected-by-high-density-electroanatomical-mapping-predict-recurrence-after-ablation-for-paroxysmal-atrial-fibrillation
#2
Konstantinos Vlachos, Michael Efremidis, Konstantinos P Letsas, George Bazoukis, Ruairidh Martin, Maria Kalafateli, Louiza Lioni, Stamatis Georgopoulos, Athanasios Saplaouras, Theodore Efremidis, Tong Liu, Kosmas Valkanas, Nikolaos Karamichalakis, Dimitrios Asvestas, Antonios Sideris
INTRODUCTION: We aimed to evaluate the extent of atrial fibrosis in paroxysmal atrial fibrillation (AF) and the correlation with ablation outcomes after pulmonary vein antral isolation (PVΑI) using a mapping system with high-resolution and high-spatial sampling. METHODS AND RESULTS: We prospectively enrolled 80 consecutive patients (45 males, median age 60.26 years) with symptomatic paroxysmal AF who were scheduled for PVAI. Prior to PVAI, high-density bipolar voltage mapping (median number of 2,485 points) was carried out during sinus rhythm in all patients...
September 8, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28884873/impact-of-premature-activation-of-the-right-ventricle-with-programmed-stimulation-in-brugada-syndrome
#3
Koji Nakagawa, Satoshi Nagase, Hiroshi Morita, Tadashi Wada, Masamichi Tanaka, Masato Murakami, Atsuyuki Watanabe, Nobuhiro Nishii, Kazufumi Nakamura, Kengo F Kusano, Hiroshi Ito, Tohru Ohe
BACKGROUND: In Brugada syndrome (BrS), it has been reported that delayed activation in the RV is related to the development of type-1 ECG which is more critical than type-2. On the other hand, the coexistence of complete right bundle-branch block (CRBBB), which also causes delayed activation in the RV, sometimes makes typical BrS ECG misleading. We hypothesized that premature stimulation of the RV can unmask the influence of delayed activation in the RV and convert the morphology of ECG in BrS patients...
September 8, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28884872/the-tip-of-the-muscle-is-a-dominant-location-of-ventricular-ectopy-originating-from-papillary-muscles-in-the-left-ventricle
#4
Petr Peichl, Jakub Baran, Dan Wichterle, Robert Čihák, Tomáš Skála, Bashar Aldhoon, Matevž Jan, Bor Antolič, Josef Kautzner
INTRODUCTION: Frequent ventricular premature complexes (VPCs) may cause symptoms and/or lead to deterioration of LV systolic function. Although frequent VPCs may be abolished by catheter ablation, it may be challenging in case of their origin from the LV papillary muscles (PMs). Our collaborative study aimed to analyze in detail the site of origin and the outcome of ablation. METHODS: Consecutive 34 patients (males: 68%; aged 62±12 years; LV ejection fraction: 50±9%) undergoing catheter ablation of VPCs originating from PMs were included...
September 8, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28884868/a-novel-multielectrode-combined-mapping-and-ablation-basket-catheter-a-future-player-in-the-atrial-fibrillation-ablation-space
#5
EDITORIAL
J Paul Mounsey
No abstract text is available yet for this article.
September 8, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28884858/unassisted-return-of-spontaneous-circulation-after-ventricular-fibrillation
#6
Wern Yew Ding, Mohammed Meah, Paul Mann
No abstract text is available yet for this article.
September 8, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28877379/short-term-safety-and-efficacy-of-left-atrial-appendage-closure-with-the-watchman-device-in-patients-with-small-left-atrial-appendage-ostia
#7
Ganesh Venkataraman, S Adam Strickberger, Shephal Doshi, Christopher Ellis, Dhanunjaya Lakkireddy, S Patrick Whalen, Frank Cuoco
INTRODUCTION: Left atrial appendage (LAA) closure with the WATCHMAN device, according to FDA labelling, is recommended in patients with a maximal LAA ostial width between 17-31 mm. The safety and efficacy of LAA closure in patients with a maximal LAA ostial width < 17 mm has not been evaluated. The goal of this study was to determine the acute and short-term safety and efficacy of LAA closure with the WATCHMAN device in patients with a maximal LAA ostial width < 17 mm. METHODS AND RESULTS: Thirty-two consecutive patients with a maximal LAA ostial width < 17 mm as determined by a screening transesophageal echocardiogram (TEE) underwent LAA closure with the WATCHMAN device between March 2015 and November 2016 at five medical centers, and were included in this study...
September 6, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28862806/initial-experience-of-a-novel-mapping-system-combined-with-remote-magnetic-navigation-in-the-catheter-ablation-of-atrial-fibrillation
#8
Changjian Lin, Steen Pehrson, Peter Karl Jacobsen, Xu Chen
BACKGROUND: There have been advancements of sophisticated mapping systems used for ablation procedures over the last decade. Utilization of these novel mapping systems in combination with remote magnetic navigation (RMN) needs to be established. We investigated the new EnSite Precisionۛ mapping system (St Jude Medical, Inc.), which collects magnetic data for checking navigation field stability and is built on an open platform, allowing physicians to choose diagnostic and ablation catheters...
September 1, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28862787/panoramic-atrial-mapping-with-basket-catheters-a-quantitative-analysis-to-optimize-practice-patient-selection-and-catheter-choice
#9
Shohreh Honarbakhsh, Richard J Schilling, Rui Providência, Gurpreet Dhillon, Vinit Sawhney, Claire A Martin, Emily Keating, Malcolm Finlay, Syed Ahsan, Anthony Chow, Mark J Earley, Ross J Hunter
INTRODUCTION: Panoramic mapping with basket catheters have been used to map atrial fibrillation (AF). However, the limited tissue contact and coverage achieved has raised concerns. METHODS AND RESULTS: Patients undergoing catheter ablation for atrial tachycardia (AT) and persistent AF were recruited. Unipolar signals were recorded with the Constellation or FIRMap catheters. The proportion and distribution of anatomical coverage by the catheters was determined and tissue contact achieved measured...
September 1, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28862779/gaps-in-physician-knowledge-are-associated-with-under-referral-for-evidence-based-implantable-cardioverter-defibrillator-therapy-how-can-we-improve-care
#10
EDITORIAL
Andrea M Russo
No abstract text is available yet for this article.
September 1, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28845890/long-term-aspirin-does-not-lower-risk-of-stroke-and-increases-bleeding-risk-in-low-risk-atrial-fibrillation-ablation-patients
#11
Victoria Jacobs, Heidi T May, Tami L Bair, Brian G Crandall, Michael J Cutler DO, John D Day, Charles Mallender, Jeffrey S Osborn, J Peter Weiss, T Jared Bunch
BACKGROUND: Stroke risk is a significant concern in patients with atrial fibrillation (AF). Low stroke risk patients (CHADS2 VASc 0-2) are often treated long-term with aspirin after catheter ablation. Defining the long-term risks versus benefits of aspirin therapy, after an ablation, is essential to validate this common clinical approach. METHODS: A total of 4,124 AF ablation patients undergoing their index ablation were included in this retrospective observational study...
August 28, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28841251/procedural-findings-and-ablation-outcome-in-patients-with-atrial-fibrillation-referred-after-two-or-more-failed-catheter-ablations
#12
Sanghamitra Mohanty, Chintan Trivedi, Carola Gianni, Domenico Giovanni Della Rocca, Eli Hamilton Morris, J David Burkhardt, Javier E Sanchez, Rodney Horton, G Joseph Gallinghouse, Richard Hongo, Salwa Beheiry, Amin Al-Ahmad, Luigi Di Biase, Andrea Natale
INTRODUCTION: This study reports the procedural findings and ablation outcome in AF patients referred after ≥2 failed PV isolation (PVI). METHODS: Three hundred and five consecutive AF patients referred after ≥2 PVI were included in the analysis. High-dose isoproterenol challenge was used to identify PV reconnection and non-PV triggers; the latter were ablated based on the operator's discretion during the index procedure. At the repeat procedure, non-PV triggers were ablated in all...
August 25, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28841250/narrow-qrs-tachycardia-in-a-patient-with-old-infarction-what-is-the-mechanism
#13
Bharatraj Banavalikar, Jayaprakash Shenthar
No abstract text is available yet for this article.
August 25, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28841249/assessing-physician-knowledge-regarding-indications-for-a-primary-prevention-implantable-defibrillator-and-potential-barriers-for-referral
#14
Rochelle Bernier, Satish R Raj, Dat Tran, Lucy Reyes, Michel Sauve, Glen L Sumner, Derek V Exner, Roopinder K Sandhu
BACKGROUND: Although there is clear evidence to demonstrate that primary prevention implantable defibrillators (ICDs) reduce mortality in high-risk patients, ICDs are underutilized. Limited data exist assessing referring physicians' knowledge about guideline indications and attitudes towards ICDs, which may influence decision for referral. METHODS AND RESULTS: The Arrhythmia Working Group from the Alberta Cardiovascular and Stroke Strategic Clinical Network developed a web-based survey consisting of case scenarios regarding primary prevention ICD indications and a list of barriers for referral to aid in the design of a complex device care pathway...
August 25, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28836709/persistency-of-left-atrial-linear-lesions-after-radiofrequency-catheter-ablation-for-atrial-fibrillation-data-from-an-invasive-follow-up-electrophysiology-study
#15
Nebojša Mujović, Milan Marinković, Nebojša Marković, Goran Stanković, Gregory Y H Lip, Carina Blomstrom-Lundqvist, T Jared Bunch, Tatjana S Potpara
BACKGROUND: Data on the roof line (RL) and mitral isthmus line (MIL) reconnections after atrial fibrillation (AF) catheter-ablation (CA) are scarce. OBJECTIVE: We studied the RL and MIL completeness and localization of reconnection sites in consecutive patients after their first-ever AF-CA. METHODS: We prospectively included 41 consecutive AF patients who underwent predefined lesion sets of two circumferential lines (CLs) for ipsilateral pulmonary vein isolation (PVI) combined with a RL and lateral MIL...
August 24, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28833757/the-sawtooth-ekg-pattern-of-typical-atrial-flutter-is-not-related-to-slow-conduction-velocity-at-the-cavotricuspid-isthmus
#16
Arunashis Sau, Markus B Sikkel, Vishal Luther, Ian Wright, Fernando Guerrero, Michael Koa-Wing, David Lefroy, Nicholas Linton, Norman Qureshi, Zachary Whinnett, Phang Boon Lim, Prapa Kanagaratnam, Nicholas S Peters, D Wyn Davies
INTRODUCTION: We hypothesized that very high-density mapping of typical atrial flutter (AFL) would facilitate a more complete understanding of its circuit. Such very high-density mapping was performed with the Rhythmia(TM) (Boston Scientific) mapping system using its 64 electrode basket catheter. METHODS AND RESULTS: Data were acquired from 13 patients in AFL. Functional anatomy of the right atrium (RA) was readily identified during mapping including the Crista Terminalis and Eustachian ridge...
August 22, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28833720/near-field-impedance-accurately-distinguishes-among-pericardial-intracavitary-and-anterior-mediastinal-position
#17
David A Burkland, Anand V Ganapathy, Mathews John, Brian D Greet, Mohammad Saeed, Abdi Rasekh, Mehdi Razavi
INTRODUCTION: Epicardial catheter ablation is increasingly used to treat arrhythmias with an epicardial component. Nevertheless, percutaneous epicardial access remains associated with a significant risk of major complications. Developing a technology capable of confirming proper placement within the pericardial space could decrease complication rates. The purpose of this study was to examine differences in bioimpedance among the pericardial space, anterior mediastinum, and right ventricle...
August 22, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28833819/intermittent-alternance-of-brugada-ecg-patterns-insights-from-a-unique-electrophysiological-phenomenon
#18
Giuseppe Ciconte, Manuel Conti, Gabriele Vicedomini, Vincenzo Santinelli, Josep Brugada, Carlo Pappone
No abstract text is available yet for this article.
August 18, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28833780/stellate-ganglion-blockade-for-the-treatment-of-refractory-ventricular-arrhythmias-a-systematic-review-and-meta-analysis
#19
Marat Fudim, Richard Boortz-Marx, Arun Ganesh, Nathan H Waldron, Yawar J Qadri, Chetan B Patel, Carmelo A Milano, Albert Y Sun, Joseph P Mathew, Jonathan P Piccini
INTRODUCTION: Treatment refractory ventricular arrhythmias (VAs) are often driven and exacerbated by heightened sympathetic tone. We aim to conduct a systematic review and meta-analysis of published studies of a temporary percutaneous stellate ganglion block (SGB) on VA burden and defibrillation episodes in patients with treatment refractory VAs. METHODS: Relevant studies from January 1960 through May 2017 were identified in PubMed and Google Scholar. We performed a patient-level analysis using Student's t-test to compare outcomes before and after SGB...
August 18, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28833764/ganglionated-plexi-as-neuromodulation-targets-for-atrial-fibrillation
#20
Eue-Keun Choi, Ye Zhao, Thomas H Everett, Peng-Sheng Chen
The autonomic nervous system plays an important role in the genesis of atrial fibrillation and is one of the candidate targets for atrial fibrillation therapy. This review focuses on the role of the autonomic nervous system in atrial fibrillation development and discusses the results of the ganglionated plexi catheter and surgical ablation in preclinical and clinical studies. The heart is innervated by the extrinsic and intrinsic autonomic nervous systems. The intrinsic autonomic nervous system consists of multiple ganglionated plexi and axons, which innervate the neighboring atrial myocardium and control their electrophysiological properties...
August 18, 2017: Journal of Cardiovascular Electrophysiology
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