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Circulation. Arrhythmia and Electrophysiology

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https://www.readbyqxmd.com/read/27879279/heart-rate-turbulence-is-a-powerful-predictor-of-cardiac-death-and-ventricular-arrhythmias-in-postmyocardial-infarction-and-heart-failure-patients-a-systematic-review-and-meta-analysis
#1
Marcello Disertori, Michela Masè, Marta Rigoni, Giandomenico Nollo, Flavia Ravelli
BACKGROUND: Heart rate turbulence (HRT) has been proposed as a candidate marker of altered autonomic tone, and some studies showed its prognostic value for both cardiac death (CD) and sudden death. Nevertheless, HRT is not currently used in the clinical practice. METHODS AND RESULTS: We performed a systematic review and meta-analysis of the predictive value of HRT for the end points of total mortality, CD, and fatal and nonfatal ventricular arrhythmias in postacute myocardial infarction and heart failure patients...
December 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27879278/formation-of-functional-conduction-block-during-the-onset-of-reentrant-ventricular-tachycardia
#2
Edward J Ciaccio, James Coromilas, Andrew L Wit, Nicholas S Peters, Hasan Garan
No abstract text is available yet for this article.
December 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27864312/atrial-pathology-findings-in-a-patient-with-prkag2-cardiomyopathy-and-persistent-atrial-fibrillation
#3
Eduardo Back Sternick, Stanley de Almeida Araújo, Elizabeth Ribeiro da Silva Camargos, Geraldo Brasileiro Filho
No abstract text is available yet for this article.
December 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27864311/late-dehiscence-of-left-atrial-appendage-closure-device
#4
Santosh K Padala, Parikshit S Sharma, Walter H J Paulsen, Vigneshwar Kasirajan, John D Grizzard, Matthew Sackett, Kenneth A Ellenbogen
No abstract text is available yet for this article.
December 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27793958/subcutaneous-implantable-cardioverter-defibrillator-shocks-after-left-ventricular-assist-device-implantation
#5
Tobias J Pfeffer, Thorben König, David Duncker, Roman Michalski, Stephan Hohmann, Hanno Oswald, Jan D Schmitto, Christian Veltmann
No abstract text is available yet for this article.
November 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27793957/right-ventricular-pacing-induced-hemodynamic-compromise-in-a-patient-with-a-left-ventricular-assist-device
#6
Matthew C Hyman, Robert D Schaller, Andrew E Epstein, J Eduardo Rame
No abstract text is available yet for this article.
November 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27784740/when-is-a-pathway-not-a-pathway-explaining-late-recurrences-after-successful-ablation-of-pediatric-atrioventricular-nodal-reentrant-tachycardia
#7
EDITORIAL
Joel A Kirsh
No abstract text is available yet for this article.
November 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27784739/long-term-follow-up-after-catheter-ablation-of-atrioventricular-nodal-reentrant-tachycardia-in-children
#8
David Backhoff, Sophia Klehs, Matthias J Müller, Heike E Schneider, Thomas Kriebel, Thomas Paul, Ulrich Krause
BACKGROUND: Catheter ablation of the slow conducting pathway (SP) is treatment of choice for atrioventricular nodal reentrant tachycardia (AVNRT). Although there are abundant data on AVNRT ablation in adult patients, little is known about the long-term results ≥3 years after AVNRT ablation in pediatric patients. METHODS AND RESULTS: Follow-up data from 241 patients aged ≤18 years who had undergone successful AVNRT ablation were analyzed. Median age at ablation had been 12...
November 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27784738/pulmonary-vein-antral-isolation-and-nonpulmonary-vein-trigger-ablation-are-sufficient-to-achieve-favorable-long-term-outcomes-including-transformation-to-paroxysmal-arrhythmias-in-patients-with-persistent-and-long-standing-persistent-atrial-fibrillation
#9
Jackson J Liang, Melissa A Elafros, Daniele Muser, Rajeev K Pathak, Pasquale Santangeli, Erica S Zado, David S Frankel, Gregory E Supple, Robert D Schaller, Rajat Deo, Fermin C Garcia, David Lin, Mathew D Hutchinson, Michael P Riley, David J Callans, Francis E Marchlinski, Sanjay Dixit
BACKGROUND: Transformation from persistent to paroxysmal atrial fibrillation (AF) after ablation suggests modification of the underlying substrate. We examined the nature of initial arrhythmia recurrence in patients with nonparoxysmal AF undergoing antral pulmonary vein isolation and nonpulmonary vein trigger ablation and correlated recurrence type with long-term ablation efficacy after the last procedure. METHODS AND RESULTS: Three hundred and seventeen consecutive patients with persistent (n=200) and long-standing persistent (n=117) AF undergoing first ablation were included...
November 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27784737/readthrough-promoting-drugs-gentamicin-and-ptc124-fail-to-rescue-nav1-5-function-of-human-induced-pluripotent-stem-cell-derived-cardiomyocytes-carrying-nonsense-mutations-in-the-sodium-channel-gene-scn5a
#10
Georgios Kosmidis, Christiaan C Veerman, Simona Casini, Arie O Verkerk, Simone van de Pas, Milena Bellin, Arthur A M Wilde, Christine L Mummery, Connie R Bezzina
BACKGROUND: Several compounds have been reported to induce translational readthrough of premature stop codons resulting in the production of full-length protein by interfering with ribosomal proofreading. Here we examined the effect of 2 of these compounds, gentamicin and PTC124, in human-induced pluripotent stem cell (hiPSC)-derived cardiomyocytes bearing nonsense mutations in the sodium channel gene SCN5A, which are associated with conduction disease and potential lethal arrhythmias...
November 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27784736/characteristics-of-decremental-accessory-pathways-in-children
#11
Allison C Hill, Michael J Silka, Choo Phei Wee, Yaniv Bar-Cohen
BACKGROUND: Although retrograde decremental accessory pathways (DAPs) are thought to typically present as permanent junctional reciprocating tachycardia (permanent junctional reciprocating tachycardia), they may also be diagnosed unexpectedly during electrophysiology study. We aimed to compare the clinical and electrophysiological characteristics of patients with DAPs to an age-matched cohort with nondecremental accessory pathways. METHODS AND RESULTS: We retrospectively studied pediatric patients (<21 years of age) with retrograde DAPs and an age-matched control population with nondecremental accessory pathways who underwent electrophysiology study between 2005 and 2014...
November 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27733498/catheter-ablation-of-ventricular-tachycardia-in-nonischemic-dilated-cardiomyopathy-a-difficult-field-where-we-should-focus-our-efforts
#12
Paolo Della Bella, Nicola Trevisi
No abstract text is available yet for this article.
October 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27733497/don-t-just-do-something-stand-there-unraveling-the-complexities-of-riata
#13
Andrew H Voigt, Samir Saba
No abstract text is available yet for this article.
October 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27733496/outside-in-subepicardial-dissection-during-percutaneous-epicardial-ventricular-tachycardia-ablation
#14
Guo Jincun, Zhou Faguang, Huang Weibin, Wang Yan, Dong Kang, Roderick Tung
No abstract text is available yet for this article.
October 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27733495/ranolazine-for-congenital-long-qt-syndrome-type-iii-experimental-and-long-term-clinical-data
#15
Ehud Chorin, Dan Hu, Charles Antzelevitch, Aviram Hochstadt, Luiz Belardinelli, David Zeltser, Hector Barajas-Martinez, Uri Rozovski, Raphael Rosso, Arnon Adler, Jesaia Benhorin, Sami Viskin
BACKGROUND: The basic defect in long-QT syndrome type III (LQT3) is an excessive inflow of sodium current during phase 3 of the action potential caused by mutations in the SCN5A gene. Most sodium channel blockers reduce the early (peak) and late components of the sodium current (INa and INaL), but ranolazine preferentially reduces INaL. We, therefore, evaluated the effects of ranolazine in LQT3 caused by the D1790G mutation in SCN5A. METHODS AND RESULTS: We performed an experimental study of ranolazine in TSA201 cells expressing the D1790G mutation...
October 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27733494/long-term-outcome-after-catheter-ablation-of-ventricular-tachycardia-in-patients-with-nonischemic-dilated-cardiomyopathy
#16
Daniele Muser, Pasquale Santangeli, Simon A Castro, Rajeev K Pathak, Jackson J Liang, Tatsuya Hayashi, Silvia Magnani, Fermin C Garcia, Mathew D Hutchinson, Gregory G Supple, David S Frankel, Michael P Riley, David Lin, Robert D Schaller, Sanjay Dixit, Erica S Zado, David J Callans, Francis E Marchlinski
BACKGROUND: Catheter ablation (CA) of ventricular tachycardia (VT) in patients with nonischemic dilated cardiomyopathy can be challenging because of the complexity of underlying substrates. We sought to determine the long-term outcomes of endocardial and adjuvant epicardial CA in nonischemic dilated cardiomyopathy. METHODS AND RESULTS: We examined 282 consecutive patients (aged 59±15 years, 80% males) with nonischemic dilated cardiomyopathy who underwent CA. Ablation was guided by activation/entrainment mapping for tolerated VT and pacemapping/targeting of abnormal electrograms for unmappable VT...
October 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27733493/canadian-registry-of-implantable-electronic-device-outcomes-surveillance-of-the-riata-lead-under-advisory
#17
Ratika Parkash, Bernard Thibault, Iqwal Mangat, Benoit Coutu, Matthew Bennett, Jeffrey Healey, Atul Verma, Francois Philippon, Roopinder Sandhu, Douglas Cameron, Felix Ayala-Paredes, Laurence Sterns, Vidal Essebag, Teresa Kus, Pablo Nery, Elizabeth Stephenson, Raymond Yee, Derek Exner, Satish Toal, David Birnie, George Wells, Andrew Krahn
BACKGROUND: The Riata lead under advisory has posed a unique clinical scenario where inside-out abrasion results in externalization of conductor cables, with a higher risk of electrical failure. We developed a comprehensive registry to assist with clinical management of this lead. METHODS AND RESULTS: This Canadian registry reports the findings of 3763 (74.2% of all Riata leads in Canada) Riata leads under advisory, with a mean follow-up time of 8.9±1.5 years. The overall electrical failure rate was 5...
October 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27733492/long-term-outcome-of-patients-initially-diagnosed-with-idiopathic-ventricular-fibrillation-a-descriptive-study
#18
Marloes Visser, Jeroen F van der Heijden, Jasper J van der Smagt, Pieter A Doevendans, Arthur A Wilde, Peter Loh, Rutger J Hassink
BACKGROUND: Idiopathic ventricular fibrillation (IVF) is a rare cause of sudden cardiac arrest. Limited data are available on the long-term outcome of IVF patients. METHODS AND RESULTS: In this retrospective cohort study, 107 consecutive patients with an initial diagnosis of IVF were analyzed (age at index event 40.4 years, 60% male). Missing diagnostic data were acquired during follow-up, including genetic testing, to exclude underlying disease. A specific diagnosis was revealed in 22 of 107 patients (21%) during a median follow-up of 10...
October 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27729346/double-layer-separate-ventricular-activation-patterns-during-ventricular-tachycardia-associated-with-myocarditis
#19
Takumi Yamada, Steven G Lloyd, Naoki Yoshida, G Neal Kay
No abstract text is available yet for this article.
October 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27729345/challenging-radiofrequency-catheter-ablation-of-idiopathic-ventricular-arrhythmias-originating-from-the-left-ventricular-summit-near-the-left-main-coronary-artery
#20
Takumi Yamada, Harish Doppalapudi, Silvio H Litovsky, H Thomas McElderry, G Neal Kay
BACKGROUND: Radiofrequency catheter ablation (RFCA) of idiopathic ventricular arrhythmias (VAs) originating from the basal portion of the left ventricular (LV) summit, which is divided from the apical LV (A-LV) summit by the great cardiac vein (GCV), is challenging. This study investigated the efficacy of RFCA and electrocardiographic and electrophysiological characteristics of these VAs. METHODS AND RESULTS: Forty-five consecutive patients with symptomatic idiopathic LV summit VAs were studied...
October 2016: Circulation. Arrhythmia and Electrophysiology
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