Electrocardiographic Localization of Ventricular Arrhythmias Successfully Ablated from the Distal Great Cardiac Vein
ConclusionCombining a “w” wave in lead I with an early precordial pattern break and a MDI ≥ 0.5 is highly sensitive and specific for identifying the dGCV as a successful ablation site for PVCs.This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - July 3, 2020 Category: Cardiology Authors: David Chang, James Gabriels, Aditi Vaishnav, Beom Soo Kim, Kristie Coleman, Mohammad Khan, Kyle Maisel, Haisam Ismail, Bruce Goldner, Jonathan Willner, Raman Mitra, Roy M. John, Apoor Patel, Laurence M. Epstein, Stavros Mountantonakis, Stua Tags: ORIGINAL ‐ ELECTROPHYSIOLOGY Source Type: research

Mechanism of Spontaneous Initiation of Ventricular Fibrillation in Patients with Implantable Defibrillators
ConclusionSome spontaneous VF events in ICD recipients appear to be initiated by a train of multiple PVC or nonsustained VT rather than a single PVC. This finding indicates that patterns of a single PVC are not an important determinant of VF initiation and thus accounts for conflicting results in previous studies.This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - July 3, 2020 Category: Cardiology Authors: Eric Xie, Katarina Mayer, Melissa F. Capps, Andreas Barth, Charles J. Love, Ruben Coronel, Hiroshi Ashikaga Tags: ORIGINAL ‐ ELECTROPHYSIOLOGY Source Type: research

Unusual response to overdrive pacing during a postinfarction ventricular tachycardia: What is the mechanism?
Journal of Cardiovascular Electrophysiology, EarlyView. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - July 3, 2020 Category: Cardiology Authors: Taihei Itoh, Masaomi Kimura, Shogo Hamaura, Kimitaka Nishizaki, Yuji Ishida, Noriyoshi Kaname, Hirofumi Tomita Tags: EP ROUNDS Source Type: research

Multipolar mapping with the high ‐density grid catheter compared with conventional point‐by‐point mapping to guide catheter ablation for focal arrhythmias
ConclusionMPM with the HDG catheter for focal tachycardias identified earlier activation times and was associated with shorter mapping and procedure duration with equivalent success to PbyP mapping. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - July 3, 2020 Category: Cardiology Authors: David Chieng, Anandaroop Lahiri, Hariharan Sugumar, Ahmed Al ‐Kaisey, Ramanathan Parameswaran, Robert D. Anderson, Sandeep Prabhu, Liang‐Han Ling, Joseph B. Morton, Alex J. McLellan, Geoffrey Lee, Jonathan M. Kalman, Andrew D. McGavigan, Tags: ORIGINAL ARTICLES Source Type: research

Hot balloon vs. cryoballoon ablation for persistent atrial fibrillation: lesion area, efficacy, and safety
AbstractIntroductionThe clinical efficacy and safety of hot balloon ablation (HBA) for treatment of persistent AF (PerAF) remain unclear. We aimed to evaluate the clinical efficacy and safety of HBA vs. cryoballoon ablation (CBA) as treatment for PerAF.MethodsOf 195 consecutive patients who underwent initial catheter ablation for PerAF (AF lasting>7 days but
Source: Journal of Cardiovascular Electrophysiology - July 1, 2020 Category: Cardiology Authors: Yuji Wakamatsu, Shiro Nakahara, Koichi Nagashima, Reiko Fukuda, Naoki Nishiyama, Ryuta Watanabe, Masaru Arai, Naoto Otsuka, Sayaka Kurokawa, Hirotsugu Sato, Tetsuya Ishikawa, Yuichi Hori, Yasuo Okumura, Isao Taguchi Tags: ORIGINAL ARTICLES Source Type: research

A novel local impedance algorithm to guide effective pulmonary vein isolation in AF patients: preliminary experience across different ablation sites from the CHARISMA Pilot Study
AbstractIntroductionRecently, a novel technology able to measure local tissue impedance (LI) and tissue characteristics has been made available for clinical use. This analysis explores the relationships among LI and generator impedance (GI) parameters in atrial fibrillation (AF) patients. Characterization of LI among different ablation spots and procedural success were also evaluated.Methods and ResultsConsecutive patients undergoing AF ablation from the CHARISMA registry at 5 Italian centers were included. A novel RF ablation catheter with a dedicated algorithm (DIRECTSENSE ™) was used to measure LI and to guide abl...
Source: Journal of Cardiovascular Electrophysiology - July 1, 2020 Category: Cardiology Authors: Luca Segreti, Antonio De Simone, Vincenzo Schillaci, Maria Grazia Bongiorni, Gemma Pelargonio, Claudio Pandozi, Andrea Di Cori, Giuseppe Stabile, Marco Pepe, Giulio Zucchelli, Gergana Shopova, Raffaele De Lucia, Chiara Ferrari, Francesca Casa Tags: ORIGINAL ARTICLES Source Type: research

Issue Information
Journal of Cardiovascular Electrophysiology, Volume 31, Issue 7, Page 1569-1576, July 2020. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - July 1, 2020 Category: Cardiology Tags: ISSUE INFORMATION Source Type: research

Persistent atrial fibrillation; It is time to regroup
Journal of Cardiovascular Electrophysiology, Volume 31, Issue 7, Page 1879-1879, July 2020. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - July 1, 2020 Category: Cardiology Authors: Ali R. Keramati, Hugh Calkins Tags: COMPREHENSIVE REVIEW Source Type: research

Caudo ‐cranial Transseptal Approach for Placement of Endocardial Left Ventricular Leads
This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - July 1, 2020 Category: Cardiology Authors: Mohamad C. Sinno, Thomas Carrigan, J. Christian Hays Tags: CASE REPORT Source Type: research

Supraventricular bigeminy originating from the mitral annulus: What is the mechanism?
This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 30, 2020 Category: Cardiology Authors: Masaaki Yokoyama, Seigo Yamashita, Michifumi Tokuda, Saagar Mahida, Michiiro Yoshimura, Teiichi Yamane Tags: CASE REPORT Source Type: research

Re ‐definition of Blanking Period in Radiofrequency Catheter Ablation of Atrial Fibrillation in the Contact Force Era
ConclusionPAF patients with ER who have undergone CF ‐guided ablation have a greater risk of LR than those who have undergone non‐CF‐guided ablation. ER in the 3rd month after CF ‐guided ablation may indicate an absolute risk of LR. Blanking period could be defined as 2 months in the CF era.This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 30, 2020 Category: Cardiology Authors: Shunsuke Uetake, Yasushi Miyauchi, Tatsuya Mitsuishi, Mitsunori Maruyama, Yoshihiko Seino, Wataru Shimizu Tags: ORIGINAL ARTICLES Source Type: research

Increasing atrial fibrillation: what is the cause?
This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 30, 2020 Category: Cardiology Authors: Carola Gianni, Domenico G Della Rocca, Jun Kim, Anu Sahore Salwan, Andrea Natale, Amin Al ‐Ahmad Tags: DEVICE ROUNDS Source Type: research

Comparative study of strategies to prevent esophageal and periesophageal injury during atrial fibrillation ablation
Journal of Cardiovascular Electrophysiology, EarlyView. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 29, 2020 Category: Cardiology Authors: Shailee Shah, Marcela Mercado ‐Montoya, Jason Zagrodzky, Erik Kulstad Tags: LETTER TO THE EDITOR Source Type: research

Corrigendum
Journal of Cardiovascular Electrophysiology, EarlyView. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 29, 2020 Category: Cardiology Authors: Gabriele D'Ambrosio, Silvio Romano, Obaida Alothman, Markus Frommhold, Georgi Borisov, Giuseppe Patti, Mohammad El Garhy, Karam Issa, Maria Penco, Santi Raffa, Johann C. Geller Tags: CORRIGENDUM Source Type: research

A Simple Method to Detect Leaks after Left Atrial Appendage Occlusion with Watchman
AbstractBackgroundWe evaluated the efficacy of a new method in identifying peri ‐device leak (PDL) using morphology of the thrombus formed inside the left atrial appendage (LAA) as seen on follow‐up transesophageal echo (TEE).MethodA total of 291 consecutive patients undergoing Watchman procedure were included in this analysis. TEE was performed at 45 days post ‐procedure. Based on the presence of the thrombus inside the LAA behind the device, patients were grouped as 1) White (W) group: LAA completely filled with thrombus (n=101), 2) Non‐white (NW) group: LAA completely black or mixed (part black and part white) (...
Source: Journal of Cardiovascular Electrophysiology - June 29, 2020 Category: Cardiology Authors: H üseyin Ayhan, Sanghamitra Mohanty, Ömer Gedikli, Chintan Trivedi, Ugur Canpolat, Alfredo Chauca Tapia, Qiong Chen, Domenico Giovanni Della Rocca, Carola Gianni, Anu Salwan, Alisara Annanab, Bryan MacDonald, Angel Mayedo, J. David Burkhard Tags: ORIGINAL ARTICLE Source Type: research

Unusual response to overdrive pacing during a post ‐infarction ventricular tachycardia: What is the mechanism?
This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 25, 2020 Category: Cardiology Authors: Taihei Itoh, Masaomi Kimura, Shogo Hamaura, Kimitaka Nishizaki, Yuji Ishida, Noriyoshi Kaname, Hirofumi Tomita Tags: EP ROUNDS Source Type: research

Outcomes of Incident Atrial Fibrillation in Heart Failure with Preserved or Reduced Ejection Fraction: A Community ‐Based Study
AbstractIntroductionThe best management strategy for patients with atrial fibrillation (AF) with heart failure (HF) and preserved left ventricular ejection fraction (HFpEF) is unknown.Methods and ResultsThis cohort study was conducted in Olmsted County, Minnesota, with resources of the Rochester Epidemiology Project.Patients with incident AF occurring between 2000 and 2014 with prior or concurrent HF were included.Patients with LVEF ≥ 50% were designated as HFpEF and those with LVEF
Source: Journal of Cardiovascular Electrophysiology - June 25, 2020 Category: Cardiology Authors: Pei Zhang, Alanna M. Chamberlain, David O. Hodge, Cheng Cai, Pei Lin Xiao, Jie Han, Chen ‐Yang Jiang, Margaret M. Redfield, Veronique L. Roger, Yong‐Mei Cha Tags: ORIGINAL ARTICLES Source Type: research

Focal Arrhythmia Ablation with Multipolar Mapping: Does it Still Make Sense to Stay Off ‐Grid?
This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 24, 2020 Category: Cardiology Authors: Jay A. Montgomery Tags: EDITORIAL ‐ INVITED Source Type: research

Embarking Upon Atrial Fibrillation Management in Heart Failure with Preserved Ejection Fraction: Charting a Course
This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 24, 2020 Category: Cardiology Authors: Ravi B. Patel, Rod S. Passman, Sanjiv J. Shah Tags: EDITORIAL ‐ INVITED Source Type: research

Non ‐Pulmonary Vein Triggers in Non‐Paroxysmal Atrial Fibrillation Ablation: Implications of Pathophysiology for Catheter Ablation
This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 24, 2020 Category: Cardiology Authors: Domenico G. Della Rocca, Nicola Tarantino, Chintan Trivedi, Sanghamitra Mohanty, Alisara Anannab, Anu Sahore Salwan, Carola Gianni, Mohamed Bassiouny, Amin Al ‐Ahmad, Jorge Romero, David F. Briceño, J. David Burkhardt, G. Joseph Gallinghous Tags: REVIEW Source Type: research

Multipolar mapping with the high density grid catheter compared with conventional point by point mapping to guide catheter ablation for focal arrhythmias
ConclusionMultipolar mapping with the HDG catheter for focal tachycardias identified earlier activation times and was associated with shorter mapping and procedure duration with equivalent success to PbyP mapping.This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 24, 2020 Category: Cardiology Authors: David Chieng, Anandaroop Lahiri, Hariharan Sugumar, Ahmed Al ‐Kaisey, Ramanathan Parameswaran, Robert D Anderson, Sandeep Prabhu, Liang‐Han Ling, Joseph B Morton, Alex J McLellan, Geoffrey Lee, Jonathan M Kalman, Andrew D McGavigan, Peter Tags: ORIGINAL ARTICLES Source Type: research

Intermittent Bifascicular Block in a Young Athlete: A Novel Variant of Ventricular Preexcitation?
This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 24, 2020 Category: Cardiology Authors: Hussam Ali, Sara Foresti, Gabriele Egidy Assenza, Pierpaolo Lupo, Guido De Ambroggi, Riccardo Cappato Tags: EP ROUNDS Source Type: research

Implantable Cardioverter ‐Defibrillator Therapy to Reduce Sudden Cardiac Death in Adults with Congenital Heart Disease: A Registry Study
ConclusionsICD insertion in the ACHD population involves careful balance of the risks and benefits. Our data show a significant proportion of patients receiving appropriate therapy indicating that ICDs were inserted appropriately.This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 24, 2020 Category: Cardiology Authors: Thomas A Slater, Blanche Cupido, Helen Parry, Michael Drozd, Michael E Blackburn, Dominic Hares, Christopher B Pepper, Linda Birkitt, Damien Cullington, Klaus K Witte, James Oliver, Kate M English, Anshuman Sengupta Tags: ORIGINAL ‐ DEVICES Source Type: research

The Utility of Drug Challenge Testing in Brugada Syndrome: a Systematic Review and Meta ‐analysis
ConclusionsThe incidence of MAE in drug challenge induced Type ‐1 in asymptomatic patients is low. The incidence of MAE between symptomatic drug challenge induced and asymptomatic spontaneous Type‐1 was similar.This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 23, 2020 Category: Cardiology Authors: Pattara Rattanawong, Jakrin Kewcharoen, Chanavuth Kanitsoraphan, Wasawat Vutthikraivit, Prapaipan Puttapiban, Narut Prasitlumkum, Poemlarp Mekraksakit, Raktham Mekrittikrai, Eugene H Chung Tags: ORIGINAL ‐ ELECTROPHYSIOLOGY Source Type: research

EP lessons by legendary quartet of “Jackman‐Klein‐Prystowsky‐Stevenson”: “A priceless opportunity” during the COVID‐19 era
Journal of Cardiovascular Electrophysiology, EarlyView. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 22, 2020 Category: Cardiology Authors: Ozcan Ozeke, Serkan Cay, Firat Ozcan, Ahmet Korkmaz, Meryem Kara, Serkan Topaloglu, Dursun Aras Tags: LETTER TO THE EDITOR Source Type: research

Conduction gap mapping of linear ablation lesions with high ‐density mapping
ConclusionConduction gaps of linear ablation lesions can be visualized by high ‐density mapping with a high probability. Unipolar propagation, when used with bipolar mapping, may help detect conduction gap sites. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 22, 2020 Category: Cardiology Authors: Kentaro Nakai, Asami Kashiwa, Akira Kunitomi, Shunzo Matsuoka Tags: ORIGINAL ARTICLES Source Type: research

Left Ventricle Automatic Pacing Threshold Management in CRT systems: a Comprehensive Review
This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 22, 2020 Category: Cardiology Authors: Franco Zoppo, Giulia Gagno Tags: REVIEW Source Type: research

Interrelationships between interventricular electrical delays in cardiac resynchronization therapy
ABSTRACTIntroductionIn cardiac resynchronization therapy, pacing the left ventricle (LV) at sites of prolonged electrical delay is associated with better outcomes. We sought to characterize the interrelationships between intrinsic, right ‐ventricular (RV)‐paced, and LV‐paced interventricular delays.Methods and ResultsThe following electrical timings were measured at implantation for all electrodes of the LV quadripolar leads: QLV, interventricular delay in intrinsic rhythm (RVs ‐LVs), in RV‐paced rhythm (RVp‐LVs), and in LV‐paced rhythm (LVp‐RVs). We included 32 patients (78% men, age 72 years, LV ejection ...
Source: Journal of Cardiovascular Electrophysiology - June 20, 2020 Category: Cardiology Authors: Ghassan Moubarak, Fr édéric A. Sebag, Pierre Socie, Olivier Villejoubert, Jules Louembe, Virginie Ferchaud Tags: ORIGINAL ARTICLES Source Type: research

Not so Typical: The Role of Epicardial Connections in Typical Flutter Refractory to Block across the Cavotricuspid Isthmus
This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 20, 2020 Category: Cardiology Authors: Tharian Cherian, David J. Callans Tags: EDITORIAL ‐ INVITED Source Type: research

Electrophysiologic evidence of epicardial connections between low right atrium and remote right atrial region or coronary sinus musculature: relevance for catheter ablation of typical atrial flutter
ConclusionOur observations suggested the existence of epicardial fibers connecting the LRA with either the CS musculature or a remote right atrial region. When AFl ablation fails whereas evidence for local endocardial block is observed, the operators should integrate this finding in the diagnosis and ablation strategy.This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 20, 2020 Category: Cardiology Authors: Corentin Chaumont, Nadir Saoudi, Arnaud Savour é, Decebal Gabriel Lațcu, Frédéric Anselme Tags: ORIGINAL ‐ ELECTROPHYSIOLOGY Source Type: research

The efficacy of left bundle branch area pacing compared with biventricular pacing in patients with heart failure: a matched case ‐control study
ConclusionsIt is effective and safe to correct CLBBB with LBBAP in heart failure patients. Compared with BIVP, LBBAP can better optimize electrical synchrony and improve cardiac function.This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 20, 2020 Category: Cardiology Authors: Yao Wang, Kai Gu, Zhiyong Qian, Xiaofeng Hou, Xing Chen, Yuanhao Qiu, Zeyu Jiang, Xinwei Zhang, Hongping Wu, Minglong Chen, Jiangang Zou Tags: ORIGINAL ‐ DEVICES Source Type: research

Endo ‐epicardial ablation vs endocardial ablation for the management of ventricular tachycardia in arrhythmogenic right ventricular cardiomyopathy: A systematic review and meta‐analysis
AbstractBackgroundThe pathologic process of ARVC (arrhythmogenic right ventricular cardiomyopathy) typically originates in the epicardium or subepicardial layers with progression toward endocardium. However, in the most recent ARVC international task force consensus statement, epicardial ventricular tachycardia (VT) ablation is recommended as a Class I indication only in patients with at least one failed endocardial VT ablation attempt.ObjectiveThe aim of this meta ‐analysis is to assess the outcomes of ARVC patients undergoing combined endo‐epicardial VT ablation, as compared to endocardial ablation alone.MethodsA sys...
Source: Journal of Cardiovascular Electrophysiology - June 18, 2020 Category: Cardiology Authors: Jorge Romero, Kavisha Patel, David Briceno, Isabella Alviz, Mohamed Gabr, Juan Carlos Diaz, Chintan Trivedi, Sanghamitra Mohanty, Domenico Della Rocca, Amin Al ‐Ahmad, Ruike Yang, Saul Rios, Luis Cerna, Xianfeng Du, Nicola Tarantino, Xiao Tags: ORIGINAL ‐ ELECTROPHYSIOLOGY Source Type: research

Conversion of positive ‐pressure cardiac catheterization and electrophysiology laboratories to a novel 2‐zone negative‐pressure system during COVID‐19 pandemic
In this report, we describe a novel, quick, readily implantable, and resource‐friendly approach on how to secure air quality in catheterization and electrophysiology laboratories by converting a positive‐pressu re ventilation room to a two‐zone negative ventilation system to minimize the risk of transmission. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 17, 2020 Category: Cardiology Authors: Monica Truesdell, Paul Guttman, Barbara Clarke, Sheryl Wagner, Jim Bloom, Jeff DuShane, Linda Richardson, Kristen VanderElzen, Stanley Chetcuti, Hakan Oral Tags: BRIEF COMMUNICATION Source Type: research

Pulmonary Vein Isolation and QT prolongation in Paroxysmal Atrial fibrillation: What Have We Learned?
This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 17, 2020 Category: Cardiology Authors: Farah Abdulhai, Marwan M. Refaat Tags: EDITORIAL ‐ INVITED Source Type: research

Recurrent ventricular tachycardia after cardiac sympathetic denervation: prolonged cycle length with improved hemodynamic tolerance and ablation outcomes
ConclusionRFA for recurrent MMVT post ‐CSD is a reasonable treatment option with intermediate‐term clinical success in 50% of patients. Clinical VT cycle length was significantly increased after CSD with associated improvement in mappable, hemodynamically tolerated VT during RFA.This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 17, 2020 Category: Cardiology Authors: Justin Hayase, Veronica Dusi, Duc Do, Olujimi A. Ajijola, Marmar Vaseghi, Jay M. Lee, Jane Yanagawa, Nir Hoftman, Sha'Shonda Revels, Eric F. Buch, Houman Khakpour, Osamu Fujimura, Yuliya Krokhaleva, Carlos Macias, Julie Sorg, Jean Gima, Ge Tags: ORIGINAL ARTICLES Source Type: research

Prolongation of QT interval after pulmonary vein isolation for paroxysmal atrial fibrillation
AbstractIntroductionPulmonary vein isolation (PVI) affects the ganglionated plexi (GP) around the atrium leading to a modification of intrinsic cardiac autonomic system (ANS). In animal models, GP ablation has the potential risk of QT prolongation and ventricular arrhythmias. However, the impact of PVI on QT intervals in human remains unclear.Methods and ResultsWe analyzed electrocardiograms of 117 consecutive patients with paroxysmal atrial fibrillation (AF) who underwent their first PVI procedures and maintained sinus rhythm without antiarrhythmic drugs at all evaluation points (4 h, day 1, 1 month, and 3 months after PV...
Source: Journal of Cardiovascular Electrophysiology - June 17, 2020 Category: Cardiology Authors: Akio Chikata, Takeshi Kato, Kazuo Usuda, Shuhei Fujita, Michiro Maruyama, Kanichi Otowa, Keisuke Usuda, Satoru Niwa, Toyonobu Tsuda, Kenshi Hayashi, Masayuki Takamura Tags: ORIGINAL ‐ ELECTROPHYSIOLOGY Source Type: research

Right atrial conduction time for predicting coexistent typical atrial flutter in patients with paroxysmal atrial fibrillation
This study investigated whether a prolonged right atrial conduction time (RACT) estimated by tissue Doppler imaging (TDI) predicts patients with concomitant AFL and AF.Methods and ResultsWe retrospectively analyzed 398 patients (mean age 61.6 years, 73.4% men) undergoing catheter ablation of paroxysmal AF. The patients were classified into 2 groups according to whether they had evidence of AFL (N=122, 30.7%) determined by a clinical observation (N=68), induction during procedures (N=33), or AFL recurrence after procedures (N=21) or not (N=276, 69.3%). The preoperative RACT, defined as a longer duration between the onset of...
Source: Journal of Cardiovascular Electrophysiology - June 17, 2020 Category: Cardiology Authors: Satoshi Higuchi, Koichiro Ejima, Morio Shoda, Miwa Kanai, Shohei Kataoka, Kyoichiro Yazaki, Daigo Yagishita, Ayano Yoshida, Sae Tanino, Chihiro Saito, Yoshimi Yagishita, Kotaro Arai, Kyomi Ashihara, Nobuhisa Hagiwara Tags: ORIGINAL ARTICLES Source Type: research

The importance of electrical mapping of VT in the approaching era of clinical imaging
This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 16, 2020 Category: Cardiology Authors: Paolo Della Bella, Antonio Frontera Tags: EDITORIAL ‐ INVITED Source Type: research

Catheter Ablation of Orthodromic Reciprocating Tachycardia and Atrioventricular Nodal Reentrant Tachycardia in Children with Hypoplastic Left Heart Syndrome
ConclusionTranscatheter ablation for ORT and AVNRT in children with hypoplastic left heart syndrome can be performed with excellent acute and long ‐term success without major complications.This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 16, 2020 Category: Cardiology Authors: Manish Malkar, Prince J. Kannankeril, Andrew E Radbill, Frank A Fish Tags: ORIGINAL ‐ ELECTROPHYSIOLOGY Source Type: research

Association of Scar Distribution with Epicardial Electrograms and Surface Ventricular Tachycardia QRS Duration in Nonischemic Cardiomyopathy
AbstractIntroductionThe association of late gadolinium enhancement (LGE) on cardiac magnetic resonance (CMR) with epicardial and surface ventricular tachycardia (VT) electrogram features, in nonischemic cardiomyopathy (NICM), is unknown. We sought to define the association of LGE and viable wall thickness with epicardial electrogram features and exit site paced QRS duration in patients with NICM.MethodsA total of 19 patients (age 53.5 ± 11.5 years) with NICM (ejection fraction 40.2 ± 13.2%) underwent CMR before VT ablation. LGE transmurality was quantified on CMR and co‐registered with 2294 endocardial and ...
Source: Journal of Cardiovascular Electrophysiology - June 16, 2020 Category: Cardiology Authors: Jaeseok Park, Benoit Desjardins, Jackson J. Liang, Tarek Zghaib, Shuanglun Xie, Irene Lucena ‐Padros, Erica Zado, Pasquale Santangeli, David S. Frankel, David J. Callans, Rob J. Geest, Francis E. Marchlinski, Saman Nazarian Tags: ORIGINAL ‐ ELECTROPHYSIOLOGY Source Type: research

Association between interatrial block, left atrial fibrosis, and mechanical dyssynchrony: Electrocardiography ‐magnetic resonance imaging correlation
ConclusionAdvanced IAB is associated with larger LA volumes, lower emptying fraction, and more fibrosis. Longer P ‐wave duration is also associated with more LA fibrosis and higher LA mechanical dyssynchrony. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 15, 2020 Category: Cardiology Authors: Luisa Ciuffo, Vanesa Bru ña, Manuel Martínez‐Sellés, Henrique Doria Vasconcellos, Susumu Tao, Tarek Zghaib, Saman Nazarian, David D. Spragg, Joseph Marine, Ronald D. Berger, Joao A. C. Lima, Hugh Calkins, Antonio Bayés‐de‐Luna, Hiro Tags: ORIGINAL ARTICLE Source Type: research

Irregularly irregular —Nonuniform cardiac anisotropy as a substrate for atrial fibrillation
Journal of Cardiovascular Electrophysiology, EarlyView. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 15, 2020 Category: Cardiology Authors: Anna Pfenniger Tags: EDITORIAL ‐INVITED Source Type: research

Comparative study of strategies to prevent esophageal and periesophageal injury during atrial fibrillation ablation
This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 14, 2020 Category: Cardiology Authors: Cristiano F. Pisani, B árbara D. Oliveira, Conrado P. Balbo, Mauricio I. Scanavacca Tags: RESPONSE TO LETTER TO EDITOR Source Type: research

Effect of ICD implantation on cardiovascular outcomes in patients with cardiac amyloidosis: A systematic review and meta ‐anaylsis
ConclusionThe frequency of appropriate ICD treatment in cardiac amyloidosis is low and is not predicted by nonsustained ventricular tachycardia. Male gender is associated with appropriate ICD treatment. New York Heart Association class III or IV heart failure is associated with lower rate of appropriate ICD treatment. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 13, 2020 Category: Cardiology Authors: Ahmad Halawa, Henok G. Woldu, Kristina Gifft Kacey, Martin A. Alpert Tags: ORIGINAL ARTICLE Source Type: research

“Atrial fibrillation and premature ventricular complexes”: Is there a unifying diagnosis?
Journal of Cardiovascular Electrophysiology, EarlyView. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 13, 2020 Category: Cardiology Authors: Luis Quininir, Emily Hodkinson, Kim H. Chan, Raymond W. Sy Tags: EP ROUNDS Source Type: research

Irregular narrow QRS complex tachycardia with intermittent atrioventricular dissociation: What is the mechanism?
This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 12, 2020 Category: Cardiology Authors: Atsushi Doi, Naoko Miyazaki, Tomohiko Goda, Haruya Yamane, Kei Tanaka, Ryo Araki, Fumi Sato, Takayuki Yamada Tags: EP ROUNDS Source Type: research

EP lessons by Legendary Quartet of “Jackman‐Klein‐Prystowsky‐Stevenson”: "A Priceless Opportunity" during the COVID‐19 Era
This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 12, 2020 Category: Cardiology Authors: Ozcan Ozeke, Serkan Cay, Firat Ozcan, Ahmet Korkmaz, Meryem Kara, Serkan Topaloglu, Dursun Aras Tags: LETTER TO THE EDITOR Source Type: research

Safety and efficacy of Catheter Ablation for Atrial Fibrillation in Patients with Percutaneous Atrial Septal Closure Device. Electrophysiology Collaborative Consortium for Metaanalysis – ELECTRAM Investigators
ConclusionCatheter ablation for atrial fibrillation in patients with prior percutaneous ASD closure device is feasible and safe with favorable long ‐term outcomes.This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 12, 2020 Category: Cardiology Authors: Jalaj Garg, Kuldeep Shah, Mohit K. Turagam, Pragna Janagam, Andrea Natale, Dhanunjaya Lakkireddy Tags: ORIGINAL ARTICLES Source Type: research

Visualization of the electrophysiologically defined junction between the superior vena cava and right atrium
This study consisted of 15 consecutive AF patients (11 males, age 59 ±10 years). A 3D mapping catheter was positioned in the SVC‐RA junction region while delivering a single extra‐stimulus from the right atrial appendage (RAA), to discriminate the RA and SVC potentials. The electrophysiological SVC‐RA junction was defined as the most proximal points where the SVC potentials were recorded, which were tagged on the 3D mapping system around the SVC‐RA junction, where radiofrequency energy applications were applied.ResultsAround the SVC ‐RA junction, 9±2 points were tagged on the 3D mapping system. The ...
Source: Journal of Cardiovascular Electrophysiology - June 12, 2020 Category: Cardiology Authors: Nobuhiro Nishiyama, Kenji Hashimoto, Terumasa Yamashita, Hiroshi Miyama, Taishi Fujisawa, Yoshinori Katsumata, Takehiro Kimura, Keiichi Fukuda, Seiji Takatsuki Tags: ORIGINAL ARTICLES Source Type: research

Cavotricuspid Isthmus Ablation in Atrial Fibrillation With or Without Typical Atrial Flutter: A Meta ‐analysis
ConclusionIn AF patients, irrespective of the presence of typical AFL, additional CTI ablation is not associated with improvement in recurrence of all ‐atrial arrhythmias, compared to PVI alone.This article is protected by copyright. All rights reserved. (Source: Journal of Cardiovascular Electrophysiology)
Source: Journal of Cardiovascular Electrophysiology - June 12, 2020 Category: Cardiology Authors: Jorge Romero, Kavisha Patel, David Briceno, Dhanunjaya Lakkireddy, Mohamed Gabr, Juan Carlos Diaz, Isabella Alviz, Dalvert Polanco, Domenico G. Della Rocca, Prasant Mohanty, Sanghamitra Mohanty, Chintan Trivedi, Andrea Natale, Luigi Di Biase Tags: ORIGINAL ‐ ELECTROPHYSIOLOGY Source Type: research