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Heart Rhythm: the Official Journal of the Heart Rhythm Society

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https://www.readbyqxmd.com/read/30419353/pacemaker-lead-surveillance-and-failure-is-there-a-signal-in-the-noise
#1
EDITORIAL
Laurence D Sterns
No abstract text is available yet for this article.
November 9, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/30414461/lower-sarcoplasmic-reticulum-ca-2-threshold-for-triggering-afterdepolarizations-in-diabetic-rat-hearts
#2
Iuliana Popescu, Guo Yin, Sathya Velmurugan, Jeffrey R Erickson, Florin Despa, Sanda Despa
BACKGROUND: Type-2 diabetes (T2D) increases the arrhythmias risk through incompletely elucidated mechanisms. Ventricular arrhythmias could be initiated by delayed afterdepolarizations (DADs) resulting from elevated spontaneous sarcoplasmic reticulum (SR) Ca2+ release (SR Ca2+ leak). OBJECTIVE: To test the role of DADs and SR Ca2+ leak in triggering arrhythmias in T2D hearts. METHODS: We compared rats with late-onset T2D that display pancreatic and cardiac phenotypes similar to those in humans with T2D (HIP rats) and their non-diabetic littermates (WT)...
November 7, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/30414460/outcomes-following-implantable-cardioverter-defibrillator-generator-replacement-in-patients-with-recovered-left-ventricular-systolic-function-the-national-cardiovascular-data-registry
#3
Isac C Thomas, Yongfei Wang, Vincent Y See, Karl E Minges, Jeptha P Curtis, Jonathan C Hsu
BACKGROUND: Some patients with heart failure (HF) experience recovery of left ventricular (LV) systolic function by the end of their ICD generator battery-life. Outcomes following generator replacement in this setting are poorly understood. OBJECTIVES: We sought to describe outcomes following implantable cardioverter-defibrillator (ICD) generator replacement associated with recovery of LV systolic function. METHODS: We evaluated 26,197 Medicare beneficiaries enrolled in the NCDR ICD Registry who underwent primary-prevention ICD generator replacement between 2006-2009, stratified by LV ejection fraction (LVEF): reduced (LVEF≤35%), partially-recovered (LVEF>35% and≤50%), and recovered (LVEF>50%)...
November 7, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/30391572/author-s-reply-a-10-second-ecg-based-root-mean-square-of-successive-rr-differences-is-only-an-approximate-measure-of-heart-rate-variability
#4
LETTER
Federico Lombardi, Marek Malik
No abstract text is available yet for this article.
November 1, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/30391571/depolarization-versus-repolarization-abnormality-underlying-inferolateral-j-wave-syndromes-new-concepts-in-sudden-cardiac-death-with-apparently-normal-hearts
#5
Michel Haïssaguerre, Koonlawee Nademanee, Mélèze Hocini, Ghassen Cheniti, Josselin Duchateau, Antonio Frontera, Frédéric Sacher, Nicolas Derval, Arnaud Denis, Thomas Pambrun, Rémi Dubois, Pierre Jaïs, David Benoist, Richard D Walton, Akihiko Nogami, Ruben Coronel, Mark Potse, Olivier Bernus
Early repolarization indicates a distinct electrocardiographic phenotype affecting the junction between the QRS complex and the ST segment in inferolateral leads (inferolateral J-Wave Syndromes). It has been considered a benign electrocardiographic variant for decades, but recent clinical studies have demonstrated its arrhythmogenicity in a small subset, supported by experimental studies showing transmural dispersion of repolarization. Here, we review the current knowledge and the issues of risk stratification which limit clinical management...
November 1, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/30391570/a-10-second-ecg-based-root-mean-square-of-successive-differences-is-a-valid-and-reliable-measure-of-heart-rate-variability
#6
LETTER
Balewgizie Sileshi Tegegne, Tengfei Man, Arie M van Roon, Harriëtte Riese, Harold Snieder
No abstract text is available yet for this article.
November 1, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/30412778/2018-acc-aha-hrs-guideline-on-the-evaluation-and-management-of-patients-with-bradycardia-and-cardiac-conduction-delay-a-report-of-the-american-college-of-cardiology-american-heart-association-task-force-on-clinical-practice-guidelines-and-the-heart-rhythm-society
#7
Fred M Kusumoto, Mark H Schoenfeld, Coletta Barrett, Richard Lee, James R Edgerton, Joseph E Marine, Kenneth A Ellenbogen, Christopher J McLeod, Michael R Gold, Keith R Oken, Nora F Goldschlager, Kristen K Patton, Robert M Hamilton, Cara N Pellegrini, José A Joglar, Kimberly A Selzman, Robert J Kim, Annemarie Thompson, Paul D Varosy
No abstract text is available yet for this article.
October 31, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/30412777/2018-acc-aha-hrs-guideline-on-the-evaluation-and-management-of-patients-with-bradycardia-and-cardiac-conduction-delay-executive-summary-a-report-of-the-american-college-of-cardiology-american-heart-association-task-force-on-clinical-practice-guidelines-and
#8
Fred M Kusumoto, Mark H Schoenfeld, Coletta Barrett, Richard Lee, James R Edgerton, Joseph E Marine, Kenneth A Ellenbogen, Christopher J McLeod, Michael R Gold, Keith R Oken, Nora F Goldschlager, Kristen K Patton, Robert M Hamilton, Cara N Pellegrini, José A Joglar, Kimberly A Selzman, Robert J Kim, Annemarie Thompson, Paul D Varosy
No abstract text is available yet for this article.
October 31, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/30412776/impact-of-physiologic-pacing-versus-right-ventricular-pacing-among-patients-with-left-ventricular-ejection-fraction-greater-than-35-a-systematic-review-for-the-2018-acc-aha-hrs-guideline-on-the-evaluation-and-management-of-patients-with-bradycardia-and-cardiac
#9
David J Slotwiner, Merritt H Raitt, Freddy Del-Carpio Munoz, Naseer Nasser, Siva K Mulpuru, Pamela N Peterson
BACKGROUND: It is unclear whether physiologic pacing by either cardiac biventricular pacing (BiVP) or His-bundle pacing (HisBP) may prevent adverse structural and functional consequences known to occur among some patients who receive right ventricular pacing (RVP). AIM: Our analysis sought to review existing literature to determine if BiVP and/or HisBP might prevent adverse remodeling and be associated with structural, functional, and clinical advantages compared with RVP among patients without severe left ventricular dysfunction (>35%) who required permanent pacing because of heart block...
October 31, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/30389442/competitive-athletes-with-implantable-cardioverter-defibrillators-how-to-program-data-from-the-implantable-cardioverter-defibrillator-sports-registry
#10
Brian Olshansky, Gourg Atteya, David Cannom, Hein Heidbuchel, Elizabeth Saarel, Ole-Gunnar Anfinsen, Alan Cheng, Michael R Gold, Andreas Müssigbrodt, Kristen K Patton, Leslie Saxon, Bruce Wilkoff, Rik Willems, James Dziura, Fangyong Li, Cynthia Brandt, Laura Simone, Wilhelm Matthias, Rachel Lampert
BACKGROUND: Athletes with ICDs may require unique optimal device-based tachycardia programming. OBJECTIVE: To assess the association of tachycardia programming characteristics of ICDs with occurrence of shocks, transient loss-of-consciousness, and death among athletes. METHODS: A sub-analysis of a prospective, observational, international registry of 440 athletes with ICDs followed 44 months (median) was performed. Programming characteristics were divided into groups for rate cut-off, very high, high, and low and for detection, long-detection intervals (>nominal) or nominal...
October 30, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/30389441/a-simple-mechanism-underlying-the-behavior-of-reentrant-atrial-tachycardia-during-ablation
#11
Masateru Takigawa, Nicolas Derval, Claire A Martin, Konstantinos Vlachos, Arnaud Denis, Takeshi Kitamura, Ghassen Cheniti, Felix Bourier, Anna Lam, Ruairidh Martin, Antonio Frontera, Nathaniel Thompson, Grégoire Massoullié, Michael Wolf, Josselin Duchateau, Nicolas Klotz, Thomas Pambrun, Frederic Sacher, Hubert Cochet, Mélèze Hocini, Michel Haïssaguerre, Pierre Jaïs
BACKGROUND: Ablation of complexed atrial tachycardias (ATs) is difficult OBJECTIVE: To elucidate a mechanism underlying the behavior of ATs during ablation and create an algorithm to predict it. METHODS: An algorithm predicting termination/conversion of AT, and the second AT-circuit associated with the ablation site, was developed from 52 index reentrant-AT high-resolution activation maps in 45 patients (retrospective phase). Firstly, the wavefront-collision site was identified...
October 30, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/30414841/long-term-suppression-of-atrial-fibrillation-by-botulinum-toxin-injection-into-epicardial-fat-pads-in-patients-undergoing-cardiac-surgery-three-year-follow-up-of-a-randomized-study
#12
Alexander Romanov, Evgeny Pokushalov, Dmitry Ponomarev, Sevda Bayramova, Vitaliy Shabanov, Denis Losik, Ilya Stenin, Dmitry Elesin, Igor Mikheenko, Artem Strelnikov, David Sergeevichev, Boris Kozlov, Sunny S Po, Jonathan S Steinberg
BACKGROUND: Botulinum toxin (BTX) injections into epicardial fat pads in patients undergoing coronary artery bypass grafting (CABG) has resulted in suppression of atrial fibrillation (AF) during the early postoperative period through 1-year of follow-up in a pilot program. OBJECTIVE: The purpose of this study was to report 3-year AF patterns by the use of implantable cardiac monitors (ICMs). METHODS: Sixty patients with a history of paroxysmal AF and indications for CABG were randomized 1:1 to either BTX or placebo injections into 4 posterior epicardial fat pads...
October 29, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/30385383/intracardiac-pulsed-field-ablation-proof-of-feasibility-in-a-chronic-porcine-model
#13
Mark T Stewart, David E Haines, Atul Verma, Nicole Kirchhof, Noah Barka, Erin Grassl, Brian Howard
BACKGROUND: Radiofrequency (RF) has become an accepted energy source for myocardial ablation but may result in discontinuous lesions and non-targeted tissue injury. We examined feasibility and safety of lesion formation using high amplitude, bipolar pulsed electric fields delivered from a multi-electrode array catheter. OBJECTIVE: Compare duty-cycled RF ablation (RFA) to pulsed field ablation (PFA) in terms of acute electrical effects, two-week lesion formation, and injury to non-targeted tissues...
October 29, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/30414840/temporary-autonomic-modulation-with-botulinum-toxin-type-a-to-reduce-atrial-fibrillation-after-cardiac-surgery
#14
Nathan H Waldron, Mary Cooter, John C Haney, Jacob N Schroder, Jeffrey G Gaca, Shu S Lin, Martin I Sigurdsson, Marat Fudim, Mihai V Podgoreanu, Mark Stafford-Smith, Carmelo A Milano, Jonathan P Piccini, Joseph P Mathew
BACKGROUND: Postoperative atrial fibrillation (POAF) frequently complicates cardiac surgery and is associated with worse outcomes. The cardiac autonomic nervous system is implicated in the pathogenesis of POAF. OBJECTIVE: The purpose of this study was to determine the efficacy and safety of selective cardiac autonomic modulation in preventing POAF. METHODS: In this randomized, double-blind, placebo-controlled trial, adults undergoing cardiac surgery were randomized 1:1 to intraoperative injection of 250 units onabotulinumtoxinA (botulinum toxin type A [BoNTA]) or placebo into epicardial fat pads...
October 26, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/30385382/performance-and-limitations-of-noninvasive-cardiac-activation-mapping
#15
Josselin Duchateau, Frédéric Sacher, Thomas Pambrun, Nicolas Derval, Judit Chamorro-Servent, Arnaud Denis, Sylvain Ploux, Mélèze Hocini, Pierre Jaïs, Olivier Bernus, Michel Haissaguerre, Rémi Dubois
BACKGROUND: Activation mapping using noninvasive electrocardiographic imaging (ECGi) has recently been used to describe the physiology of different pathologies. These descriptions differ from prior invasive studies, and both methods have not been thoroughly confronted in a clinical setting. OBJECTIVE: We directly compared noninvasive ventricular activation maps with high-density epicardial contact maps. METHODS: Fifty-nine maps were obtained in 55 patients and aligned on a common geometry...
October 26, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/30366163/use-and-outcomes-of-subcutaneous-implantable-cardioverter-defibrillator-icd-after-trans-venous-icd-extraction-an-analysis-of-current-clinical-practice-and-a-comparison-with-trans-venous-icd-reimplantation
#16
Stefano Viani, Federico Migliore, Gianfranco Tola, Ennio Cl Pisanò, Antonio Dello Russo, Giovanni Luzzi, Paolo Sartori, Agostino Piro, Roberto Rordorf, Giovanni Battista Forleo, Anna Rago, Luca Segreti, Emanuele Bertaglia, Mauro Biffi, Mariolina Lovecchio, Sergio Valsecchi, Igor Diemberger, Maria Grazia Bongiorni
BACKGROUND: The subcutaneous implantable cardioverter-defibrillator (S-ICD) does not require the insertion of any leads into the cardiovascular system. OBJECTIVE: This analysis describes current practice concerning S-ICD use after transvenous ICD (TV-ICD) explantation. METHODS: We analyzed all consecutive patients who underwent transvenous extraction of an ICD and subsequent implantation of an S-ICD or a single-chamber TV-ICD at 12 Italian centers from 2011 to 2017...
October 23, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/30366162/ablation-compared-to-drug-therapy-for-recurrent-ventricular-tachycardia-in-arrhythmogenic-right-ventricular-cardiomyopathy-results-from-a-multicenter-study
#17
Saagar Mahida, Jeroen Venlet, Ardan Muammer Saguner, Saurabh Kumar, Samuel H Baldinger, Amir AbdelWahab, Usha B Tedrow, Silvia Castelletti, Antonis Pantazis, Roy M John, William J McKenna, Pier D Lambiase, Firat Duru, John L Sapp, Katja Zeppenfeld, William G Stevenson
BACKGROUND: The comparative efficacy of antiarrhythmic drug therapy (AAD) versus ventricular tachycardia (VT) ablation in arrhythmogenic right ventricular cardiomyopathy (ARVC) is unknown. OBJECTIVES: We compared outcomes of AAD and/or beta blocker (BB) therapy to VT ablation (with AAD/BB) in ARVC patients with recurrent VT. METHODS: In a multicenter retrospective study, 110 ARVC patients (38±17 years, 83% male) with a minimum of 3 VT episodes were included; 77 (70%) were initially treated with AAD/BB and 32 (29%) underwent ablation...
October 23, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/30366161/long-term-performance-of-a-pacing-lead-family-a-single-center-experience
#18
Mikhael F El-Chami, Birju Rao, Anand D Shah, Carolyn Wood, Michael Sayegh, Patrick Zakka, Krista Ginn, Lauren Pallotta, Bryanna Evans, Michael H Hoskins, David Delurgio, Michael Lloyd, Jonathan Langberg, Angel R Leon, Faisal M Merchant
BACKGROUND: The performance of Abbott/St Jude Tendril pacing leads has not been well characterized. OBJECTIVE: We sought to determine the performance of Tendril leads as compared to different pacing leads. METHODS: We retrospectively identified patients implanted with the following leads: Tendril leads 1888 TC, 2088 TC and 1688 TC, Medtronic 4076 CapSure Fix Novus, and Boston Scientific FINELINE™II Sterox Pacing EZ Leads (4469, 4470 and 4471)...
October 23, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/30366160/incidence-and-predictors-of-atrial-fibrillation-progression-a-systematic-review-and-meta-analysis
#19
Steffen Blum, Pascal Meyre, Stefanie Aeschbacher, Sebastian Berger, Chloé Auberson, Matthias Briel, Stefan Osswald, David Conen
BACKGROUND: More sustained forms of atrial fibrillation (AF) are less amenable to treatment and associated with worse outcomes, but the incidence and predictors of AF-progression are not well defined. OBJECTIVE: To perform a systematic review and meta-analysis assessing the incidence and predictors of AF-progression. METHODS: PubMed, EMBASE and the Cochrane Library were searched from inception to August 2017. AF-progression was defined as progression from paroxysmal to persistent/permanent or from persistent to permanent AF...
October 23, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/30366159/significance-of-clinical-ventricular-tachycardias-induced-by-antitachycardia-pacing-in-patients-with-prior-myocardial-infarction
#20
Ghaith Sharaf-Dabbagh, Konstantinos C Siontis, Rakesh Latchamsetty, Krit Jongnarangsin, Miki Yokokawa, Sangeeta Lathkar-Pradhan, Fred Morady, Frank Bogun
BACKGROUND: In patients with implantable cardioverter-defibrillators (ICD), ventricular tachycardia (VT) can occur spontaneously or as a result of antitachycardia pacing (ATP) that changes, rather than terminates, a spontaneous VT to a different VT. The relevance of ATP-induced VTs is uncertain. OBJECTIVE: To assess the clinical relevance of ATP-mediated VTs in patients undergoing VT ablation procedures. METHODS: Stored ICD electrograms of 162 consecutive patients with prior myocardial infarction referred for VT ablation (mean age 67...
October 23, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
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