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Journal of Cardiovascular Electrophysiology

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https://www.readbyqxmd.com/read/29782689/common-and-distinctive-electrocardiographic-characteristics-and-effective-catheter-ablation-of-idiopathic-ventricular-arrhythmias-originating-from-different-areas-of-ventricular-septum-adjacent-to-atrioventricular-annulus
#1
Su-Qin Zhang, Cheng Zheng, Yue-Chun Li, Kang-Ting Ji, Ri-Peng Yin, Jia-Feng Lin, Jia Li
OBJECTIVE: To investigate electrocardiographic (ECG) characteristics and radiofrequency catheter ablation (RFCA) efficacy for premature ventricular complexes (PVCs) and idiopathic ventricular tachycardias (IVTs) originating from ventricular septum areas adjacent to atrioventricular annulus (VS-AVA). METHODS: Among 1505 consecutive PVCs/IVTs cases, 106 (7.04%) were confirmed as origin of VS-AVA guided by both fluoroscopy and three-dimensional mapping system during RFCA...
May 21, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29777559/utility-of-heart-rate-turbulence-and-t-wave-alternans-to-assess-risk-for-re-admission-and-cardiac-death-in-hospitalized-heart-failure-patients
#2
Shinya Yamada, Akiomi Yoshihisa, Yu Sato, Takamasa Sato, Masashi Kamioka, Takashi Kaneshiro, Masayoshi Oikawa, Atsushi Kobayashi, Hitoshi Suzuki, Takafumi Ishida, Yasuchika Takeishi
BACKGROUND: Heart failure (HF) patients have a higher risk of recurrent HF and cardiac death, and electrical remodeling is considered to be an important factor for HF progression. The present study aimed to validate the utility of electrocardiogram and Holter monitoring for the risk stratification of HF patients. METHODS: Our study comprised 215 patients (144 males, mean age 62 years) who had been hospitalized due to acute decompensated HF. Electrocardiogram (QRS duration and QTc interval) and 24-hour Holter monitoring (heart rate variability, heart rate turbulence and T-wave alternans [TWA]) were performed in stable condition before discharge...
May 18, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29777558/response-to-the-letter-to-the-editor-on-impact-of-left-atrial-volume-sphericity-and-fibrosis-on-the-outcome-of-catheter-ablation-for-atrial-fibrillation
#3
LETTER
Dennis W den Uijl, Lluís Mont
No abstract text is available yet for this article.
May 18, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29777556/electrophysiology-and-structural-interventions-in-adults-with-congenital-heart-disease-comparison-of-combined-versus-separate-procedures
#4
Ian Lindsay, Farnoosh Nik-Ahd, Jamil A Aboulhosn, Jeremy P Moore
BACKGROUND: Electrophysiologic (EP) and structural interventions in adult congenital heart disease (ACHD) are typically completed during separate hospital encounters. With planning/coordination, these cases can be combined. OBJECTIVES: We hypothesized that this integrated approach would yield patient and health system benefits. METHODS: Consecutive ACHD patients undergoing combined interventions were matched to controls with identical but separate procedures...
May 18, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29777553/letter-to-the-editor-regarding-the-paper-impact-of-left-atrial-volume-sphericity-and-fibrosis-on-the-outcome-of-catheter-ablation-for-atrial-fibrillation
#5
LETTER
Katja Schumacher, Petra Büttner, Jelena Kornej
No abstract text is available yet for this article.
May 18, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29777548/higher-contact-force-during-radiofrequency-ablation-leads-to-a-much-larger-increase-in-edema-as-compared-to-chronic-lesion-size
#6
Samuel Thomas, Josh Silvernagel, Nathan Angel, Eugene Kholmovski, Elyar Ghafoori, Nan Hu, John Ashton, Derek J Dosdall, Rob MacLeod, Ravi Ranjan
INTRODUCTION: Reversible edema is a part of any radiofrequency ablation but its relationship with contact force is unknown. The goal of this study was to characterize through histology and MRI, acute and chronic ablation lesions and reversible edema with contact force. METHODS AND RESULTS: In a canine model (n = 14), chronic ventricular lesions were created with a 3.5 mm tip ThermoCool SmartTouch (Biosense Webster) catheter at 25W or 40W for 30 sec. Repeat ablation was performed after 3 months to create a second set of lesions (acute)...
May 18, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29771455/statistical-guidance-of-vt-ablation
#7
EDITORIAL
Miguel Rodrigo, Sanjiv M Narayan
No abstract text is available yet for this article.
May 17, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29733479/levosimendan-differentially-modulates-electrophysiological-activities-of-sinoatrial-nodes-pulmonary-veins-and-the-left-and-right-atria
#8
Yung-Kuo Lin, Yao-Chang Chen, Yi-Ann Chen, Jen-Hung Huang, Shih-Ann Chen, Yi-Jen Chen
INTRODUCTION: Calcium overload increases the risk of atrial fibrillation (AF). Levosimedan, a calcium sensitizer, increases myofilament contractility. Clinical reports suggested that levosimendan might increase AF occurrence, but the electrophysiological effects of levosimendan on AF substrates and triggers (pulmonary veins, PVs) are not clear. METHODS AND RESULTS: Conventional microelectrodes were used to record action potentials (APs) in isolated rabbit PVs, sinoatrial nodes (SANs), the left atrium (LA), and right atrium (RA) before and after application of different concentrations of levosimendan with or without milrinone (a phosphodiesterase (PDE) III inhibitor) and glibenclamide (an ATP-sensitive potassium channel (KATP ) inhibitor)...
May 7, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29733473/the-prevalence-and-characteristics-of-co-existed-atrioventricular-nodal-reentrant-tachycardia-and-idiopathic-left-fascicular-ventricular-tachycardia
#9
Fa-Po Chung, Vu Van Ba, Yenn-Jiang Lin, Shih-Lin Chang, Li-Wei Lo, Yu-Feng Hu, Ta-Chuan Tuan, Tze-Fan Chao, Jo-Nan Liao, Chin-Yu Lin, Ming-Hsiung Hsieh, Shih-Ann Chen
BACKGROUND: Co-existence of idiopathic left fascicular ventricular tachycardia (ILFVT) and atrioventricular nodal reentrant tachycardia (AVNRT) has been rarely reported. OBJECTIVES: The study aimed at elucidating the prevalence of co-existed AVNRT in patients with ILFVT during longitudinal follow-up. The electrophysiological properties and clinical predictors of co-existed ILFVT and AVNRT were investigated. METHODS: From 1999 to 2017, a total of 108 patients (age: 33...
May 7, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29727513/unipolar-voltage-mapping-criteria-for-septal-aspect-of-right-ventricular-influence-of-aortic-root
#10
Iosif Kelesidis, Benoit Desjardins, Daniele Muser, Pasquale Santangeli, Erica S Zado, Francis E Marchlinski
INTRODUCTION: Unipolar voltage mapping through its wider "field of view" can identify substrate deeper to the endocardium on the right ventricular (RV) free wall and left ventricle. The reference value(s) for normal endocardial (ENDO) unipolar voltage (UNI) for the septal aspect of the right ventricle (RV) and the effect of the aortic root that is directly opposed to the posterior septal plane of the RV outflow tract (RVOT) have not been established. METHODS AND RESULTS: We performed detailed (185 ± 70, range 127-342 points) RV ENDO UNI maps in 9 patients without structural heart disease; 6 had magnetic resonance (MR) imaging; 5 were males; the mean age was 49 ± 11 years...
May 4, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29727507/optimal-combination-strategy-of-left-atrial-appendage-closure-plus-catheter-ablation-in-a-single-procedure-in-patients-with-nonvalvular-atrial-fibrillation
#11
Xianfeng Du, Huimin Chu, Bin He, Binhao Wang, Jing Liu, Mingjun Feng, Yibo Yu, Guohua Fu, He Jin, Fang Gao, Jingjing Zhu, Xiaomin Chen
BACKGROUND: The efficacy and safety of combining left atrial appendage closure (LAAC) plus atrial fibrillation (AF) catheter ablation (CA) in a single procedure has been established, but the optimal combination strategy has not been thoroughly elucidated to date. OBJECTIVE: We aimed to investigate the impact of different combination strategies on clinical outcomes. METHODS: Eighty-two consecutive patients with symptomatic AF (mean CHA2 DS2 -VASc score 4...
May 4, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29727501/a-wide-complex-tachycardia-with-atypical-right-bundle-branch-block-qrs-morphology-what-is-the-mechanism
#12
Tam Tsz Kin, Joseph Y S Chan, George J Klein
No abstract text is available yet for this article.
May 4, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29722474/identification-of-the-critical-isthmus-of-a-reentrant-ventricular-tachycardia-at-a-glance
#13
Concepción Alonso-Martín, Enrique Rodríguez, José M Guerra, Xavier Viñolas
No abstract text is available yet for this article.
May 3, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29722469/incidence-of-pericardial-effusion-after-left-atrial-appendage-closure-the-impact-of-underlying-heart-rhythm-data-from-the-ewolution-study
#14
Boris Schmidt, Timothy R Betts, Horst Sievert, Martin W Bergmann, Stephan Kische, Evgeny Pokushalov, Thomas Schmitz, Felix Meincke, Patrizio Mazzone, Kenneth M Stein, Hüseyin Ince, Lucas V A Boersma
INTRODUCTION: Pericardial effusion/tamponade (PE/PT) is a rare but serious complication following left atrial appendage closure (LAAC). It may be speculated that LAA contraction during sinus rhythm (SR) exerts mechanical force on the device that eventually leads to PE. We sought to determine the incidence and predictors of PE following LAAC using Watchman with special emphasis on the underlying heart rhythm during implant. METHODS AND RESULTS: From 47 centers in 13 European countries 1020 patients underwent LAAC and data on baseline rhythm were available from 1010 patients (mean age 73 ± 9 years, 60% male, median CHA2DS2-VASc = 4)...
May 3, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29722468/comparison-of-treatment-outcomes-between-convergent-procedure-and-catheter-ablation-for-paroxysmal-atrial-fibrillation-evaluated-with-implantable-loop-recorder-monitoring
#15
Matevž Jan, David Žižek, Živa Miriam Geršak, Borut Geršak
INTRODUCTION: While catheter ablation (CA) is an established treatment for symptomatic paroxysmal atrial fibrillation (AF), convergent epicardial and endocardial ablation procedure (CVP) has been primarily used to treat persistent AF. The aim of this single-center, prospective, randomized study was to compare treatment efficacy of CA and CVP in paroxysmal AF patients by monitoring AF, atrial tachycardia (AT) and atrial flutter (AFL) recurrence with Implantable Loop Recorder (ILR). METHODS AND RESULTS: Fifty patients (74% male) with history of paroxysmal AF were randomized between CA and CVP...
May 3, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29722467/wide-complex-tachycardia-in-a-patient-with-ebstein-s-anomaly
#16
Ramanan Kumareswaran, David S Frankel
No abstract text is available yet for this article.
May 3, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29722466/post-procedural-lge-cmr-comparison-of-laser-and-radiofrequency-ablation-lesions-after-pulmonary-vein-isolation
#17
Rosa M Figueras I Ventura, Andrei D Mǎrgulescu, Eva M Benito, Francisco Alarcón, Norihiro Enomoto, Susanna Prat-Gonzalez, Rosario J Perea, Roger Borràs, Fredy Chipa, Elena Arbelo, Jose M Tolosana, Josep Brugada, Antonio Berruezo, Lluis Mont
INTRODUCTION: The purpose of this study was to compare the anatomical characteristics of scar formation achieved by visual guided laser balloon (Laser) and radiofrequency (RF) pulmonary vein isolation (PVI), using late-gadolinium-enhanced cardiac magnetic resonance imaging (LGE-CMR). METHODS AND RESULTS: We included 17 patients with paroxysmal or early persistent drug resistant AF who underwent Laser ablation; 2 were excluded due to procedure-related complications...
May 3, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29722460/irreversible-electroporation-a-hot-topic
#18
LETTER
Piotr Futyma
No abstract text is available yet for this article.
May 3, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29709095/irreversible-electroporation-let-s-keep-it-cool
#19
LETTER
Guido Caluori, Adam Wojtaszczyk, Martin Pešl, Zdeněk Stárek
No abstract text is available yet for this article.
April 30, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29709087/identification-of-sarcomeric-variants-in-probands-with-a-clinical-diagnosis-of-arrhythmogenic-right-ventricular-cardiomyopathy-arvc
#20
Brittney Murray, Edgar T Hoorntje, Anneline S J M Te Riele, Crystal Tichnell, Jeroen F van der Heijden, Harikrishna Tandri, Maarten P van den Berg, Jan D H Jongbloed, Arthur A M Wilde, Richard N W Hauer, Hugh Calkins, Daniel P Judge, Cynthia A James, J Peter van Tintelen, Dennis Dooijes
AIMS: Arrhythmogenic right ventricular cardiomyopathy (ARVC) is an inherited cardiomyopathy characterized by ventricular arrhythmias and sudden death. Currently 60% of patients meeting Task Force Criteria (TFC) have an identifiable mutation in one of the desmosomal genes. As much overlap is described between other cardiomyopathies and ARVC, we examined the prevalence of rare, possibly pathogenic sarcomere variants in the ARVC population. METHODS: One hundred and thirty-seven (137) individuals meeting 2010 TFC for a diagnosis of ARVC, negative for pathogenic desmosomal variants, TMEM43, SCN5A, and PLN were screened for variants in the sarcomere genes (ACTC1, MYBPC3, MYH7, MYL2, MYL3, TNNC1, TNNI3, TNNT2 and TPM1) through either clinical or research genetic testing...
April 30, 2018: Journal of Cardiovascular Electrophysiology
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