Permanent His-bundle pacing using stylet-directed, active-fixation leads placed via coronary sinus sheaths compared to conventional lumen-less system
The use of coronary sinus (CS) sheaths to deliver stylet-driven leads (SDLs) for His-bundle pacing (HBP) has not been described. Conventionally, HBP is achieved using a stylet-less lead delivered through a customized catheter. (Source: Heart Rhythm)
Source: Heart Rhythm - August 15, 2019 Category: Cardiology Authors: Michael V. Orlov, David Casavant, Ioannis Koulouridis, Mikhail Maslov, Aharon Erez, Amy Hicks, Ahad Jahangir, Joe Aoun, John V. Wylie Source Type: research

Permanent His Bundle Pacing using Stylet Directed, Active Fixation Leads Placed via Coronary Sinus Sheaths as Compared to Conventional Lumen-less System
The use of coronary sinus sheaths to deliver stylet-driven leads for His bundle pacing (HBP) has not been described. Conventionally, HBP is achieved using a styletless lead delivered through a customized catheter. (Source: Heart Rhythm)
Source: Heart Rhythm - August 15, 2019 Category: Cardiology Authors: Michael V. Orlov, David Casavant, Ioannis Koulouridis, Mikhail Maslov, Aharon Erez, Amy Hicks, Ahad Jahangir, Joe Aoun, John V. Wylie Source Type: research

High-sensitivity troponin and the risk of atrial fibrillation in chronic kidney disease: Results from the Chronic Renal Insufficiency Cohort Study
Patients with chronic kidney disease (CKD) are at an increased risk of atrial fibrillation (AF). There is a need for novel biomarkers to reliably and accurately predict AF in this population. High-sensitivity troponin (HsTP) allows the detection of low troponin concentrations. The utility of HsTP for evaluating the risk of AF in CKD has not been established. (Source: Heart Rhythm)
Source: Heart Rhythm - August 13, 2019 Category: Cardiology Authors: Scott E. Janus, Jamal Hajjari, Sadeer Al-Kindi Source Type: research

High Sensitivity Troponin and the Risk of Atrial Fibrillation in Chronic Kidney Disease: Results from the Chronic Renal Insufficiency Cohort (CRIC) Study
Patients with chronic kidney disease (CKD) are at increased risk for atrial fibrillation (AF). There is a need for novel biomarkers to reliably and accurately predict AF in this population. High sensitivity troponin (HsTP) allows detection of very low troponin concentrations. The utility of HsTP for evaluating the risk of AF in CKD has not been established. (Source: Heart Rhythm)
Source: Heart Rhythm - August 13, 2019 Category: Cardiology Authors: Scott E. Janus, Jamal Hajjari, Sadeer Al-Kindi Source Type: research

Catheter ablation in children and patients with congenital heart disease: Review of 1021 procedures at a high-volume single center in Japan
Although pediatric catheter ablation therapy has often been described, there are few reports on outcomes in a large series of patients at a single center. (Source: Heart Rhythm)
Source: Heart Rhythm - August 11, 2019 Category: Cardiology Authors: Yuko Kato, Tsugutoshi Suzuki, Yoko Yoshida, Noriyasu Ozaki, Hisaaki Aoki, Shintaro Kishimoto, Shuichiro Yoshida, Shigeo Watanabe, Yoshihide Nakamura Source Type: research

Chronic venous obstruction during cardiac device revision: Incidence, predictors, and efficacy of percutaneous techniques to overcome the stenosis
In recent years, upgrade and revision procedures of cardiac implantable electronic devices (CIEDs) have become increasingly frequent. Patency of the access veins is critical for procedural success. (Source: Heart Rhythm)
Source: Heart Rhythm - August 9, 2019 Category: Cardiology Authors: Giovanni Morani, Bruna Bolzan, Sergio Valsecchi, Martina Morosato, Flavio Luciano Ribichini Source Type: research

Chronic Venous Obstruction During Cardiac Device Revision: Incidence, Predictors and Efficacy Of Percutaneous Techniques to Overcome the Stenosis
In the recent years, upgrade and revision procedures of cardiac implantable electronic device (CIED) have become increasingly frequent. The patency of the access veins is critical for procedural success. (Source: Heart Rhythm)
Source: Heart Rhythm - August 9, 2019 Category: Cardiology Authors: Giovanni Morani, Bruna Bolzan, Sergio Valsecchi, Martina Morosato, Flavio Luciano Ribichini Source Type: research

To the Editor — Temperature measurement from both electrodes during bipolar radiofrequency ablation—It is feasible
We have read with interest a recent HRS/EHRA/APHRS/LAHRS expert consensus statement on catheter ablation of ventricular arrhythmias, particularly a chapter on bipolar radiofrequency catheter ablation. The authors state that one of the limitations of this emerging approach is the fact that temperature measurements can be obtained only from 1 of 2 catheters used.1 Actually this can be done if temperature data from the thermistor located at the tip of catheter used as a ground are transferred to a temperature monitor (ie, a second radiofrequency generator). (Source: Heart Rhythm)
Source: Heart Rhythm - August 8, 2019 Category: Cardiology Authors: Piotr Futyma, Piotr Ku łakowski Tags: Letter to the editor Source Type: research

Reply to the Editor — Temperature measurement from both electrodes during bipolar radiofrequency ablation—It is feasible
We thank Drs Futyma and Ku łakowski for their interest in the recently published 2019 HRS/EHRA/APHRS/LAHRS Expert Consensus Statement on Catheter Ablation of Ventricular Arrhythmias and further thank the authors for bringing to our attention their work on catheter tip size, which was published after the completion of the cli nical document.1 We agree that temperature monitoring of both catheter tips is possible, but that such a system is not yet, to our knowledge, commercially available or approved. (Source: Heart Rhythm)
Source: Heart Rhythm - August 8, 2019 Category: Cardiology Authors: Edmond M. Cronin, Frank M. Bogun, Luis Aguinaga, John L. Sapp, William G. Stevenson Source Type: research

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In this issue of HeartRhythm, Hu et  al1 present an interesting article strengthening the importance of ablation of the area overlapping the right anterior ganglionated plexus (GP) as a primary target for cardioneuroablation (CNA).2 The study is remarkable because it confirms the initial publication, emphasizing the finding with a no teworthy cohort of 115 patients with vasovagal syncope, followed by 21.4 ± 13.1 months. One hundred six patients (92.2%) had no more syncope. The authors endorsed that ablation of the right anterior GP persistently increases the heart rate, reinforcing the idea that CNA promotes pe...
Source: Heart Rhythm - August 8, 2019 Category: Cardiology Authors: Jose Carlos Pachon-M Tags: Editorial Commentary Source Type: research

Cardioneuroablation for Neurocardiogenic Syncope
CNA was proposed for treating several conditions related to vagal hyperactivity:[2] reflex and/or functional bradyarrhythmias and vagal atrial fibrillation (AF). In the nineties, was observed that ablation of AF-Nests (AFN)[3], a kind of atrial myocardium with disconnected cells, resulted in vagal denervation, reducing drastically de heart rate variability and making the heart nonresponsive to atropine[2,4]. Therefore, in 2005 was published the first study describing the CNA by ablating the AFN, mainly the ones overlapping the main GPs. (Source: Heart Rhythm)
Source: Heart Rhythm - August 8, 2019 Category: Cardiology Authors: Jose Carlos Pachon-M Source Type: research

Author's Reply to: Temperature measurement from both electrodes during bipolar radiofrequency ablation - it is feasible
We thank Drs. Futyma and Ku łakowski for their interest in the recently published 2019 HRS/EHRA/APHRS/LAHRS Expert Consensus Statement on Catheter Ablation of Ventricular Arrhythmias and further thank the authors for bringing to our attention their work on catheter tip size, which was published after completion of the clinica l document.1 We agree that temperature monitoring of both catheter tips is possible, but that such a system is not yet, to our knowledge, commercially available or approved. Monitoring of impedance and temperature during bipolar catheter ablation is not straightforward and the optimal setup and para ...
Source: Heart Rhythm - August 8, 2019 Category: Cardiology Authors: Edmond M. Cronin, Frank M. Bogun, Luis Aguinaga, John L. Sapp, William G. Stevenson Source Type: research

Temperature measurement from both electrodes during bipolar radiofrequency ablation - it is feasible
Refers to: 2019 HRS/EHRA/APHRS/LAHRS expert consensus statement on catheter ablation of ventricular arrhythmias. Heart Rhythm. 2019 May 8. pii: S1547-5271(19)30210-3. https://doi.org/10.1016/j.hrthm.2019.03.002. (Source: Heart Rhythm)
Source: Heart Rhythm - August 8, 2019 Category: Cardiology Authors: Piotr Futyma, Piotr Ku łakowski Source Type: research

Risk of thromboembolic events after percutaneous left atrial appendage ligation in patients with atrial fibrillation: Long-term results from a multi-center study
Percutaneous left atrial appendage (LAA) occlusion with Lariat has emerged as a viable alternative to oral anticoagulation (OAC) to prevent thromboembolic (TE) events in patients with atrial fibrillation (AF). (Source: Heart Rhythm)
Source: Heart Rhythm - August 6, 2019 Category: Cardiology Authors: Sanghamitra Mohanty, Carola Gianni, Chintan Trivedi, Varuna Gadiyaram, Domenico Giovani Della Rocca, Bryan MacDonald, Rodney Horton, Amin Al-Ahmad, Douglas N. Gibson, Matthew Price, Andrew K. Krumerman, Eugen C. Palma, Luigi Di Biase, Dhanunjaya Lakkiredd Source Type: research

Caring for the Pregnant Woman with an Inherited Arrhythmia Syndrome
Pregnancy is a period of heightened cardiovascular risk in a woman ’s life. In the setting of an inherited arrhythmia syndrome (IAS), cardiologists and obstetricians may be unfamiliar with cardiovascular optimization and risk stratification in pregnancy. Historically, there were few data addressing the safety of pregnancy in these rare disorders. Recent advances suggest that no type of IAS represents an absolute contraindication to pregnancy. However, it is imperative that obstetric and cardiovascular clinicians understand the major forms of IAS and how they affect the risks and course of pregnancy. (Source: Heart Rhythm)
Source: Heart Rhythm - August 6, 2019 Category: Cardiology Authors: Thomas M. Roston, Christian van der Werf, Christopher C. Cheung, Jasmine Grewal, Brianna Davies, Arthur A.M. Wilde, Andrew D. Krahn Source Type: research

Long-term Outcomes After Low Power, Slower Movement versus High Power, Faster Movement Irrigated-Tip Catheter Ablation for Atrial Fibrillation
High power, shorter duration (HPSD) ablation strategies have been advocated to increase efficacy and minimize posterior wall deep tissue thermal injury during atrial fibrillation (AF) ablation. (Source: Heart Rhythm)
Source: Heart Rhythm - August 5, 2019 Category: Cardiology Authors: T. Jared Bunch, Heidi T. May, Tami L. Bair, Brian G. Crandall, Michael J. Cutler, Charles Mallender, J. Peter Weiss, Jeffrey S. Osborn, John D. Day Source Type: research

EP News: Quality Improvement and Outcomes
In this issue of HeartRhythm, we present recent publications relevant to quality of care and outcomes, particularly in relation to clinical decision support and shared decision making. (Source: Heart Rhythm)
Source: Heart Rhythm - August 1, 2019 Category: Cardiology Authors: Jennifer M. Wright, Anne Marie Smith, Paul D. Varosy Tags: EP News Source Type: research

Human subpulmonary infundibulum has an endocardial network of specialized conducting cardiomyocytes
The right ventricular outflow tract is the most common source of ventricular arrhythmias in nonstructural heart disease. Most of these arrhythmias are of endocardial origin, but their morphologic substrate is mostly unknown. (Source: Heart Rhythm)
Source: Heart Rhythm - July 31, 2019 Category: Cardiology Authors: Marcos C. De Almeida, Robert S. Stephenson, Robert H. Anderson, Luiz A. Benvenuti, Marios Loukas, Vera D. Aiello Source Type: research

Electrical parameters with His-bundle pacing: Considerations for automated programming
Programming of His-bundle pacing may be challenging because current implantable pulse generators are not specifically designed for this pacing modality. (Source: Heart Rhythm)
Source: Heart Rhythm - July 31, 2019 Category: Cardiology Authors: Neasa Starr, Nicolas Dayal, Giulia Domenichini, Carine Stettler, Haran Burri Source Type: research

The human subpulmonary infundibulum has an endocardial network of specialized conducting cardiomyocytes. Short title: Human subpulmonary infundibular network
The right ventricular outflow tract is the most common source of ventricular arrhythmias in non-structural heart disease. Most of these arrhythmias are of endocardial origin, but their morphological substrate is mostly unknown. (Source: Heart Rhythm)
Source: Heart Rhythm - July 31, 2019 Category: Cardiology Authors: Marcos C. De Almeida, Robert S. Stephenson, Robert H. Anderson, Luiz A. Benvenuti, Marios Loukas, Vera D. Aiello Source Type: research

Thromboembolic, Bleeding, and Mortality Risks among Patients with Nonvalvular Atrial Fibrillation Treated with Dual Antiplatelet Therapy versus Oral Anticoagulants: A Population-Based Study
Dual antiplatelet therapy (DAPT) with aspirin plus clopidogrel is used for stroke prevention in patients with atrial fibrillation (AF) when patients refuse to use oral anticoagulants (OAC) in clinical practice. However, there are limited clinical data comparing these treatments. (Source: Heart Rhythm)
Source: Heart Rhythm - July 31, 2019 Category: Cardiology Authors: Wallis C.Y. Lau, Ian J. Douglas, Ian C.K. Wong, Liam Smeeth, Gregory Y.H. Lip, Wai K. Leung, Chung-Wah Siu, Bernard M.Y. Cheung, Michael T.C. Mok, Esther W. Chan Source Type: research

Electrical parameters with His bundle pacing: considerations for automated programming
Programming of His bundle pacing may be challenging because current implantable pulse generators are not specifically designed for this pacing modality. (Source: Heart Rhythm)
Source: Heart Rhythm - July 31, 2019 Category: Cardiology Authors: Neasa Starr, Nicolas Dayal, Giulia Domenichini, Carine Stettler, Haran Burri Source Type: research

EP News: Allied Professionals
Cardiomyopathy caused by a mutation in the LMNA (lamin) gene is associated with a high risk of sudden death due to ventricular arrhythmias (VAs). As such, guidelines published by the European Society of Cardiology (Priori et  al, Eur Heart J 2015;36:2793–2867, PMID 26320108) and the American College of Cardiology/American Heart Association (Al-Khatib et al, Heart Rhythm 2018;10:e190–e252, PMID 29097320) recommend implantable cardioverter-defibrillator (ICD) in patients with laminopathy and ≥2 high-risk features. (Source: Heart Rhythm)
Source: Heart Rhythm - July 29, 2019 Category: Cardiology Authors: Erica S. Zado Tags: EP News Source Type: research

EP News: Basic and Translational
In the current study, Lussier et  al (Sci Rep 2019;9:9113, PMID 31235733) tested the functional significance of the stoichiometries of the 4 hyperpolarization-activated cyclic nucleotide–gated (HCN) channel isoforms and their auxiliary subunit KCNE2 using single-molecule subunit counting. The number of KCNE2 subunits in complex with the pore-forming subunits of human HCN channels differs with each HCN isoform and is dynamic with respect to concentration. Moreover, these interactions can be altered by KCNE2 gene variants. (Source: Heart Rhythm)
Source: Heart Rhythm - July 29, 2019 Category: Cardiology Authors: Nipavan Chiamvimonvat Tags: EP News Source Type: research

Quadripolar versus bipolar leads in cardiac resynchronization therapy: An analysis of the National Cardiovascular Data Registry
The introduction of quadripolar (QP) cardiac resynchronization therapy (CRT) leads aimed to improve procedural and clinical outcomes. (Source: Heart Rhythm)
Source: Heart Rhythm - July 28, 2019 Category: Cardiology Authors: Emad Uddin Hakemi, Rami Doukky, Craig S. Parzynski, Jeptha P. Curtis, Christopher Madias Source Type: research

Gene discovery: From biological plausibility to genetic evidence supporting disease causation
Methods of gene discovery have changed dramatically over the years. In the absence of automated DNA sequencing technology, classical genetics relied primarily on limited DNA sequence knowledge, specifically in the form of polymorphic DNA markers representing short sequences of repetitive nucleotide sequences. Knowledge of the distribution of these markers across the genome allowed researchers to perform linkage analysis studies in large families and to identify a shared set of DNA markers common to affected cases but absent in unaffected family members, effectively localizing a genomic region where the culprit gene must re...
Source: Heart Rhythm - July 28, 2019 Category: Cardiology Authors: Michael H. Gollob Tags: EDITORIAL COMMENTARY Source Type: research

Enhanced arrhythmogenic potential induced by renal autonomic nerve stimulation: Role of renal artery catheter ablation
Renal artery catheter ablation has been reported as a possible therapeutic option for drug-refractory ventricular arrhythmias (VAs) associated with structural heart diseases. (Source: Heart Rhythm)
Source: Heart Rhythm - July 28, 2019 Category: Cardiology Authors: Masaomi Chinushi, Osamu Saitoh, Ayari Sugai, Ayaka Oikawa, Junya Watanabe, Hiroshi Furushima Source Type: research

Enhanced arrhythmogenic potential induced by renal autonomic nerves stimulation: Role of renal artery catheter ablation
Renal artery catheter ablation has been reported as a possible therapeutic option for drug-refractory ventricular arrhythmias (VAs) associated with structural heart diseases. (Source: Heart Rhythm)
Source: Heart Rhythm - July 28, 2019 Category: Cardiology Authors: Masaomi Chinushi, Osamu Saitoh, Ayari Sugai, Ayaka Oikawa, Junya Watanabe, Hiroshi Furushima Source Type: research

Additional Antitachycardia Pacing Programming Strategies Further Reduce Unnecessary Implantable Cardioverter Defibrillator Shocks
Antitachycardia pacing (ATP) is routinely used to terminate ventricular tachyarrhythmias. However, little guidance exists on the most effective programming of ATP. (Source: Heart Rhythm)
Source: Heart Rhythm - July 28, 2019 Category: Cardiology Authors: Boyoung Joung, Daniel R. Lexcen, Chi-Keong Ching, Marc T. Silver, Jonathan P. Piccini, Laurence D. Sterns, Rafael Rabinovich, Robert A. Pickett, Shufeng Liu, MS; Mark L. Brown, Alan Cheng Source Type: research

Quadripolar versus Bipolar Leads in Cardiac Resynchronization Therapy: An Analysis from the National Cardiovascular Data Registry
The introduction of quadripolar (QP) cardiac resynchronization therapy (CRT) leads aimed to improve procedural and clinical outcomes. (Source: Heart Rhythm)
Source: Heart Rhythm - July 28, 2019 Category: Cardiology Authors: Emad Uddin Hakemi, Rami Doukky, Craig S. Parzynski, Jeptha P. Curtis, Christopher Madias Source Type: research

Enhanced arrhythmogenic potential induced by the renal autonomic nerves stimulation: Role of renal artery catheter ablation
Renal artery catheter ablation has been reported as a possible therapeutic option for drug-refractory ventricular arrhythmias (VA) associated with structural heart diseases. (Source: Heart Rhythm)
Source: Heart Rhythm - July 28, 2019 Category: Cardiology Authors: Masaomi Chinushi, Osamu Saitoh, Ayari Sugai, Ayaka Oikawa, Junya Watanabe, Hiroshi Furushima Source Type: research

Gene Discovery: From Biologic Plausibility to Genetic Evidence Supporting Disease Causation
Methods of gene discovery have changed dramatically over the years. In the absence of automated DNA sequencing technology, classical genetics relied primarily on limited DNA sequence knowledge, specifically in the form of polymorphic DNA markers representing short sequences of repetitive nucleotide sequences. Knowledge of the distribution of these markers across the genome allowed researchers to perform linkage analysis studies in large families, and to identify a shared set of DNA markers common to affected cases but absent in unaffected family members, effectively localizing a genomic region where the culprit gene must r...
Source: Heart Rhythm - July 28, 2019 Category: Cardiology Authors: Michael H. Gollob Source Type: research

Termination of an unusual long RP tachycardia: What is the mechanism?
A 36-year-old woman underwent a diagnostic electrophysiology study because of rapid palpitations and KardiaPro (AliveCor, Mountain View, CA) documented supraventricular tachycardia unresponsive to metoprolol therapy. She denied syncope. Her 12-lead electrocardiogram was normal. Baseline atrio-His and His-ventricular intervals measured 48 and 42 ms, respectively. Programmed atrial extrastimulation using single atrial extrastimuli repeatedly induced her supraventricular tachycardia (Figure  1). The response to ventricular overdrive pacing is shown in Figure 2. (Source: Heart Rhythm)
Source: Heart Rhythm - July 26, 2019 Category: Cardiology Authors: Reginald T. Ho, Jonathan P. Logue Tags: Unknown of the Month Source Type: research

QRS complex change during carotid sinus massage in ventricular pre-excitation
A 27-year-old man with a 4-year history of palpitations was seen in the outpatient clinic. His 12-lead electrocardiogram showed ventricular preexcitation during sinus rhythm. Of interest, and shown in Figure  1, are the changes in the QRS configuration during carotid sinus massage. (Source: Heart Rhythm)
Source: Heart Rhythm - July 26, 2019 Category: Cardiology Authors: Hein J. Wellens Tags: Josephson and Wellens ECG Lessons: A Monthly Visit to the 12 Lead ECG Source Type: research

HRS 40th anniversary viewpoints: Present at the creation —My viewpoint on the origins of cellular and clinical electrophysiology of arrhythmias
To most cellular and clinical electrophysiologists studying arrhythmias today, the origin and development of their disciplines are in the forgotten past. While the mechanisms of cardiac arrhythmias had been a focus of interest since the early 20th century,1 the elucidation of the cellular electrophysiology (EP) of arrhythmias began to take shape in the early 1960s.2 The origin of clinical EP soon followed. To a septuagenarian such as myself who has been involved in both aspects, the 1960s feels like yesterday. (Source: Heart Rhythm)
Source: Heart Rhythm - July 26, 2019 Category: Cardiology Authors: Andrew L. Wit Tags: Viewpoint Source Type: research

Effect of remote ischemic preconditioning on electrophysiological parameters in nonvalvular paroxysmal atrial fibrillation: The RIPPAF Randomized Clinical Trial
Atrial fibrillation (AF) remains the most relevant arrhythmia with a prevalence of 2%. The treatment options are either highly invasive and cost-intensive or limited by potential side effects or insufficient efficacy. However, no direct means of prevention that could reduce the burden of AF have been tested. (Source: Heart Rhythm)
Source: Heart Rhythm - July 25, 2019 Category: Cardiology Authors: Jedrzej Kosiuk, Katharina Langenhan, Clara Stegmann, Tobias Uhe, Nikolaos Dagres, Borislav Dinov, Simon Kircher, Sergio Richter, Philipp Sommer, Livio Bertagnolli, Andreas Bollmann, Gerhard Hindricks Source Type: research

Effect of remote ischemic preconditioning on electrophysiological parameters in non-valvular paroxysmal atrial fibrillation: The RIPPAF Randomized Clinical Trial
Atrial fibrillation (AF) remains the most relevant arrhythmia with a prevalence of 2%. The treatment options are either highly invasive and cost-intensive or limited by potential side effects or insufficient efficacy. However, no direct means of prevention that could reduce the burden of AF have been tested. (Source: Heart Rhythm)
Source: Heart Rhythm - July 25, 2019 Category: Cardiology Authors: Jedrzej Kosiuk, Katharina Langenhan, Clara Stegmann, Tobias Uhe, Nikolaos Dagres, Borislav Dinov, Simon Kircher, Sergio Richter, Philipp Sommer, Livio Bertagnolli, Andreas Bollmann, Gerhard Hindricks Source Type: research

Mahaim fibers: Should they be renamed?
In 1938, Mahaim and Benatt described the pathological findings of fibers connecting the AV node and His bundle to the ventricular septum1. The role of such fibers in causing arrhythmias is controversial. (Source: Heart Rhythm)
Source: Heart Rhythm - July 23, 2019 Category: Cardiology Authors: Seshadri Balaji, Patrick Tchou, Ronald Kanter Source Type: research

The Electrocardiogram in the Diagnosis and Management of Patients with Hypertrophic Cardiomyopathy
In an era of rapid technological development and evolving diagnostic possibilities, the electrocardiogram (ECG) is living an authentic “renaissance” in myocardial diseases. To date, the ECG remains an irreplaceable first step when evaluating patients with hypertrophic cardiomyopathy (HCM) and an abnormal ECG may be the only manifestation of disease at an early stage. In some instances specific electrical anomalies may different iate HCM from phenocopies such as cardiac amyloidosis and glycogen storage diseases. (Source: Heart Rhythm)
Source: Heart Rhythm - July 22, 2019 Category: Cardiology Authors: Gherardo Finocchiaro, Nabeel Sheikh, Elena Biagini, Michael Papadakis, Nicolo ’ Maurizi, Gianfranco Sinagra, Antonio Pelliccia, Claudio Rapezzi, Sanjay Sharma, Iacopo Olivotto Source Type: research

Catheter Ablation Of Supraventricular Tachycardia After Tricuspid Valve Surgery In Patients With Congenital Heart Disease: A Multicenter Comparative Study
Tricuspid valve (TV) surgery is often required for congenital heart disease (CHD), but may hinder catheter ablation when artificial material or imbricated tissue cover the tricuspid annulus. (Source: Heart Rhythm)
Source: Heart Rhythm - July 22, 2019 Category: Cardiology Authors: Jeremy P. Moore, Roberto G. Gallotti, Anca Chiriac, Christopher J. McLeod, Elizabeth A. Stephenson, Khadijah Maghrabi, Frank A. Fish, Orhan U. Kilinc, David Bradley, Ulrich Krause, Seshadri Balaji, Kevin M. Shannon Source Type: research

EP News: Clinical
van der Werf et  al (Eur Heart J May 30, 2019; https://doi.org/10.1093/eurheartj/ehz309, PMID 31145795) assessed the efficacy and complications of implantable cardioverter-defibrillators (ICDs) placed in patients with catecholaminergic polymorphic ventricular tachycardia (CPVT) and sudden cardiac arrest (SCA). The investigators analyzed 136 patients who presented with SCA and in whom CPVT was diagnosed subsequently, leading to the initiation of guideline-directed therapy, including β-blockers, flecainide, and/or left cardiac sympathetic denervation. (Source: Heart Rhythm)
Source: Heart Rhythm - July 21, 2019 Category: Cardiology Authors: N.A. Mark Estes Tags: EP News Source Type: research

Right anterior ganglionated plexus: the primary target of cardioneuroablation?
Catheter ablation on ganglionated plexus (GP) as cardioneuroablation in left atrium (LA) has been used to treat the vasovagal syncope (VVS). (Source: Heart Rhythm)
Source: Heart Rhythm - July 18, 2019 Category: Cardiology Authors: Feng Hu, Lihui Zheng, Erpeng Liang, Ligang Ding, Lingmin Wu, Gang Chen, Xiaohan Fan, Yan Yao Source Type: research

Incidence of false-positive transmissions during remote rhythm monitoring with implantable loop recorders
Implantable loop recorder (ILR) is preferred strategy for prolonged rhythm monitoring. (Source: Heart Rhythm)
Source: Heart Rhythm - July 15, 2019 Category: Cardiology Authors: Muhammad R. Afzal, Julie Mease, Tanner Koppert, Toshimasa Okabe, Jaret Tyler, Mahmoud Houmsse, Ralph S. Augostini, Raul Weiss, John D. Hummel, Steven J. Kalbfleisch, Emile G. Daoud Source Type: research

Multicenter prospective observational long-term follow-up study of endocardial cardiac resynchronization therapy using the Jurdham procedure
Endocardial cardiac resynchronization therapy (eCRT) avoids the limitations and failures of coronary sinus (CS) resynchronization. However, data regarding long-term outcomes are lacking. (Source: Heart Rhythm)
Source: Heart Rhythm - July 15, 2019 Category: Cardiology Authors: Benjamin Elencwajg, N éstor López-Cabanillas, Avi Fischer, Alberto Negrete, Jorge Marin, Lorena Delgado, Michael Glikson, Luis Molina, Seth Worley, Jaime Arnez, Fernando Vidal, Paul Friedman, Jurdham Group Source Type: research

Incidence Of False Positive Transmissions During Remote Rhythm Monitoring With Implantable Loop Recorders
Implantable loop recorder (ILR) is preferred strategy for prolonged rhythm monitoring. (Source: Heart Rhythm)
Source: Heart Rhythm - July 15, 2019 Category: Cardiology Authors: Muhammad R. Afzal, Julie Mease, Tanner Koppert, Toshimasa Okabe, Jaret Tyler, Mahmoud Houmsse, Ralph S. Augostini, Raul Weiss, John D. Hummel, Steven J. Kalbfleisch, Emile G. Daoud Source Type: research

Dielectric-Based Imaging And Navigation Of The Heart
Electroanatomic (EA) mapping systems are increasingly indispensable for complex mapping and ablation procedures in electrophysiology. An ideal ‘wish-list’ for such mapping may include accurate, real-time, acquisition of cardiac geometry, dynamic imaging of cardiac motion, localization of any catheter or wire within the heart, characterizing ablated versus non-ablated tissue, and electrophysiologic identification of voltage, activation times, physiological potentials and arrhythmogenic indices. In fact, few EA mapping systems meet these criteria. (Source: Heart Rhythm)
Source: Heart Rhythm - July 15, 2019 Category: Cardiology Authors: Albert J. Rogers, Sanjiv M. Narayan Source Type: research

A Multicenter prospective observational long-term follow up study of endocardial cardiac resynchronization therapy using the Jurdham procedure
Endocardial cardiac resynchronization therapy (eCRT) avoids the limitations and failures of coronary sinus (CS) resynchronization. However, data regarding long-term outcomes are lacking. (Source: Heart Rhythm)
Source: Heart Rhythm - July 15, 2019 Category: Cardiology Authors: Benjamin Elencwajg, N éstor López-Cabanillas, Avi Fischer, Alberto Negrete, Jorge Marin, Lorena Delgado, Michael Glikson, Luis Molina, Seth Worley, Jaime Arnez, Fernando Vidal, Paul Friedman, Jurdham Group Source Type: research

Making the case for cascade screening among families with inherited heart disease
A common scenario is that we spend time explaining the inheritance risks and need for evaluation of at-risk relatives in the family. Ultimately in many cases there is almost no uptake of these recommendations. We might try various methods, such as providing a letter to the family, giving specific details about local cardiologists, and offering to allow relatives to call us directly, yet the message does not get through to a sizeable proportion of families. This is not just a breakdown in communication but likely also is related to the perceived importance of screening. (Source: Heart Rhythm)
Source: Heart Rhythm - July 12, 2019 Category: Cardiology Authors: Jodie Ingles, Christopher Semsarian Tags: EDITORIAL COMMENTARY Source Type: research

EP News: Case Reports
Implantable cardiac device migration can negatively impact device function, result in patient discomfort, and adversely impact lead stability in patients with transvenous leads. In patients who receive a subcutaneous implantable cardioverter-defibrillator (SICD), device migration can significantly impact sensing of ventricular tachyarrhythmias as well as defibrillation thresholds. Xiang et  al (DOI: https://doi.org/10.1016/j.hrcr.2019.05.003) described a 44-year-old female patient with morbid obesity (body mass index 41 kg/m2) who underwent ICD implantation for secondary prevention after presentation with out-of-hospi...
Source: Heart Rhythm - July 12, 2019 Category: Cardiology Authors: T. Jared Bunch Tags: EP News Source Type: research

Making The Case For Cascade Screening Amongst Families With Inherited Heart Diseases
A common scenario is that we spend time explaining the inheritance risks and need for evaluation of the at-risk relatives in the family, and ultimately in many cases there is almost no uptake of these recommendations. We might try various methods, providing a family letter, giving specific details of local cardiologists, offering for relatives to call us directly, yet there remains a sizeable proportion of families where the message does not get through. It is not just a break down in communication, but likely also relates to the perceived importance of screening. (Source: Heart Rhythm)
Source: Heart Rhythm - July 12, 2019 Category: Cardiology Authors: Jodie Ingles, Christopher Semsarian Source Type: research