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Journal Cover Journal of Arrhythmia
  [SJR: 0.205]   [H-I: 4]   [0 followers]  Follow
    
  This is an Open Access Journal Open Access journal
   ISSN (Print) 1880-4276 - ISSN (Online) 1883-2148
   Published by Elsevier Homepage  [3038 journals]
  • Pulmonary vein potential mapping in atrial fibrillation with high density
           and standard spiral (lasso) catheters: A comparative study

    • Authors: Axel Meissner; Petra Maagh, Arnd Christoph, Ahmet Oernek, Gunnar Plehn
      Abstract: The dominant single-shot procedure for Pulmonary Vein Isolation (PVI) is the Cryoballoon Ablation (CBA) technique using a spiral catheter (Achieve™, AC) for mapping and monitoring purposes. We hypothesized that Basket Catheters, such as the High Density Mesh Mapper (HDMM), with its high-density mapping properties, could detect Pulmonary Vein Potentials (PVPs) that the octapolar AC would not be able to identify.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-11-25
       
  • Diffuse interstitial fibrosis assessed by cardiac magnetic resonance is
           associated with dispersion of ventricular repolarization in patients with
           hypertrophic cardiomyopathy

    • Authors: David Hurtado-de-Mendoza; Celia P. Corona-Villalobos, Iraklis Pozios, Jorge Gonzales, Yalda Soleimanifard, Sanjay Sivalokanathan, Diego Montoya-Cerrillo, Styliani Vakrou, Ihab Kamel, Wilfredo Mormontoy-Laurel, Ketty Dolores-Cerna, Jacsel Suarez, Sergio Perez-Melo, David A. Bluemke, Theodore P. Abraham, Stefan L. Zimmerman, M. Roselle Abraham
      Abstract: Hypertrophic cardiomyopathy (HCM) is characterized by myocyte hypertrophy, disarray, fibrosis, and increased risk for ventricular arrhythmias. Increased QT dispersion has been reported in patients with HCM, but the underlying mechanisms have not been completely elucidated. In this study, we examined the relationship between diffuse interstitial fibrosis, replacement fibrosis, QTc dispersion and ventricular arrhythmias in patients with HCM. We hypothesized that fibrosis would slow impulse propagation and increase dispersion of ventricular repolarization, resulting in increased QTc dispersion on surface electrocardiogram (ECG) and ventricular arrhythmias.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-11-19
       
  • Remote magnetic catheter navigation versus conventional ablation in atrial
           fibrillation ablation: Fluoroscopy reduction

    • Authors: Paul Chun Yih Lim; Joseph Jia Hong Toh, Julian Kenrick Xing Yuan Loh, Edward Chun Yi Lee, Daniel Thuan Tee Chong, Boon Yew Tan, Kah Leng Ho, Chi Keong Ching, Wee Siong Teo
      Abstract: Percutaneous transcatheter radiofrequency ablation of atrial fibrillation with remote controlled magnetic navigation (RMN) has been shown to reduce radiation exposure to patients and physicians compared with conventional manual (MAN) ablation techniques.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-11-10
      DOI: 10.1016/j.joa.2016.08.007
       
  • Epicardially placed implantable cardioverter-defibrillator for a child
           with congenital long QT syndrome

    • Authors: Hirotaro Sugiyama; Motomi Tachibana, Hiroshi Morita, Nobuhiro Nishii, Akihito Miyoshi, Hiroyasu Sugiyama, Koji Nakagawa, Atsuyuki Watanabe, Kazufumi Nakamura, Hiroshi Ito
      Abstract: A 7-year-old boy presented at our hospital with syncope. At birth, electrocardiography had shown a long QT interval with torsade de pointes (TdP). Congenital long QT syndrome (LQTS) had been diagnosed by genetic testing, and was successfully controlled with oral propranolol. At age 7, TdP had recurred with syncope. Electrocardiography revealed a prominent long QT interval with T-wave alternans. The propranolol dose was increased, but TdP remained uncontrolled. A cardioverter-defibrillator (ICD) was implanted epicardially, and TdP completely resolved with atrial pacing.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-11-10
       
  • A proposal of clinical ECG index “vagal score” for determining the
           mechanism of paroxysmal atrioventricular block

    • Authors: Sayaka Komatsu; Masataka Sumiyoshi, Seiji Miura, Yuki Kimura, Tomoyuki Shiozawa, Keiko Hirano, Fuminori Odagiri, Haruna Tabuchi, Hidemori Hayashi, Gaku Sekita, Takashi Tokano, Yuji Nakazato, Hiroyuki Daida
      Abstract: Paroxysmal atrioventricular block (P-AVB) is a well-known cause of syncope; however, its underlying mechanism is difficult to determine. This study aimed to evaluate a new ECG index, the “vagal score (VS),” to determine the mechanism of P-AVB.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-11-09
       
  • Two cases of inappropriate implantable cardioverter-defibrillator
           therapies due to T wave oversensing induced by body twisting

    • Authors: Nobuhiro Nishii; Akihito Miyoshi, Motoki Kubo, Hiroyasu Sugiyama, Motomi Tachibana, Koji Nakagawa, Atsuyuki Watanabe, Hiroshi Morita, Hiroshi Ito
      Abstract: T wave oversensing (TWOS) is a common cause of inappropriate implantable cardioverter-defibrillator (ICD) therapies. Various algorithms to avoid inappropriate ICD therapy are available; however, they are not helpful to avoid TWOS. Although the reproduction of TWOS is useful to resolve the problem of TWOS, it is sometimes difficult to reproduce TWOS. We report two cases of inappropriate ICD therapy due to TWOS, which were induced only by body twisting. We can successfully manage the device based on the evidence of reproduced TWOS.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-11-01
      DOI: 10.1016/j.joa.2016.06.003
       
  • Complex fractionated atrial electrograms, high dominant frequency regions,
           and left atrial voltages during sinus rhythm and atrial fibrillation

    • Authors: Naoko Sasaki; Ichiro Watanabe, Yasuo Okumura, Koichi Nagashima, Rikitake Kogawa, Kazumasa Sonoda, Kazuki Iso, Keiko Takahashi, Masaru Arai, Ryuta Watanabe, Sayaka Kurokawa, Kimie Ohkubo, Toshiko Nakai, Atsushi Hirayama, Mizuki Nikaido
      Abstract: Ablation targeting complex fractionated atrial electrograms (CFAEs) or high dominant frequency (DF) sites is generally effective for persistent atrial fibrillation (AF). CFAEs and/or high DF sites may exist in low-voltage regions, which theoretically represent abnormal substrates. However, whether CFAEs or high DF sites reflect low voltage substrates during sinus rhythm (SR) is unknown.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-10-27
       
  • Report of periprocedural oral anticoagulants in catheter ablation for
           atrial fibrillation: The Japanese Catheter Ablation Registry of Atrial
           Fibrillation (J-CARAF)

    • Authors: Yuji Murakawa; Akihiko Nogami, Morio Shoda, Koichi Inoue, Shigeto Naito, Koichiro Kumagai, Yasushi Miyauchi, Teiichi Yamane, Norishige Morita, Hideo Mitamura, Ken Okumura, Kenzo Hirao, on behalf of the Japanese Heart Rhythm Society Members
      Abstract: To obtain a perspective of the current status of catheter ablation for the cure of atrial fibrillation, the Japanese Heart Rhythm Society conducted a nationwide survey: the Japanese Catheter Ablation Registry of Atrial Fibrillation. In this report, we aimed to evaluate the periprocedural use of direct oral anticoagulants with respect to thromboembolic or bleeding complications.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-10-27
       
  • Anatomical dilatation of the superior vena cava associated with an
           arrhythmogenic response induced by SVC scan pacing after atrial
           fibrillation ablation

    • Authors: Hiroshi Imada; Koji Fukuzawa, Kunihiko Kiuchi, Akinori Matsumoto, Hiroki Konishi, Hirotoshi Ichibori, Kiyohiro Hyogo, Jun Kurose, Shumpei Mori, Tomofumi Takaya, Tatsuya Nishii, Kiyosumi Kagawa, Akihiro Yoshida, Hirata Ken-ichi
      Abstract: The relationship between pulmonary vein (PV) arrhythmogenicity and its anatomy has been reported. However, that of the superior vena cava (SVC) has not been well discussed. Arrhythmogenic response induced by pacing stimulation at SVC might help with identifying SVC arrhythmogenicity. The purpose of this study was to investigate the relationship between the anatomical dilatation of SVC and the arrhythmogenic response induced by pacing at SVC.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-10-27
       
  • Catechin and epicatechin reduce mitochondrial dysfunction and oxidative
           stress induced by amiodarone in human lung fibroblasts

    • Authors: Luciana Fernandes Silva Santos; Adriana Stolfo, Caroline Calloni, Mirian Salvador
      Abstract: Amiodarone (AMD) and its metabolite N-desethylamiodarone can cause some adverse effects, which include pulmonary toxicity. Some studies suggest that mitochondrial dysfunction and oxidative stress may play a role in these adverse effects. Catechin and epicatechin are recognized as important phenolic compounds with the ability to decrease oxidative stress. Therefore, the aim of this study was to evaluate the potential of catechin and epicatechin to modulate mitochondrial dysfunction and oxidative damage caused by AMD in human lung fibroblast cells (MRC-5).
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-10-22
      DOI: 10.1016/j.joa.2016.09.004
       
  • Molecular mechanisms underlying the pilsicainide-induced stabilization of
           hERG proteins in transfected mammalian cells

    • Authors: Takeshi Onohara; Ichiro Hisatome, Yasutaka Kurata, Peili Li, Tomomi Notsu, Kumi Morikawa, Naoyuki Otani, Akio Yoshida, Kazuhiko Iitsuka, Masaru Kato, Junichiro Miake, Haruaki Ninomiya, Katsumi Higaki, Yasuaki Shirayoshi, Takashi Nishihara, Toshiyuki Itoh, Yoshinobu Nakamura, Motonobu Nishimura
      Abstract: Pilsicainide, classified as a relatively selective Na+ channel blocker, also has an inhibitory action on the rapidly-activating delayed-rectifier K+ current (IKr) through human ether-a-go-go-related gene (hERG) channels. We studied the effects of chronic exposure to pilsicainide on the expression of wild-type (WT) hERG proteins and WT-hERG channel currents, as well as on the expression of mutant hERG proteins, in a heterologous expression system.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-10-19
      DOI: 10.1016/j.joa.2016.09.003
       
  • Manifestation of J wave induced by acetylcholine applied for a coronary
           spasm provocation test in a patient with aborted sudden cardiac death

    • Authors: Hiroyuki Kodama; Kazumasa Fujita, Shouhei Moriyama, Kei Irie, Hirotaka Noda, Taku Yokoyama, Mitsuhiro Fukata, Takeshi Arita, Keita Odashiro, Toru Maruyama, Koichi Akashi
      Abstract: A 51-year-old man with a resuscitation episode was referred to our hospital. Coronary angiography revealed a focal spasm overlapped with organic stenosis where a bare metal stent was implanted. Acetylcholine (ACh) provocation test did not induce chest pain. It revealed no discernible ST-T changes but unmasked a J wave at the end of the QRS complex, which was associated with short-coupled repetitive premature ventricular beats. A J wave reportedly appears immediately before the onset of ventricular fibrillation caused by vasospastic angina.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-10-14
      DOI: 10.1016/j.joa.2016.09.001
       
  • Syncope in a patient with a dual-chamber pacemaker: What is the possible
           mechanism'

    • Authors: Yavuzer Koza; Ziya Simsek, Selim Aydemir, Remziye Doğan
      Abstract: A 90-year-old woman with hypertension and a history of a dual-chamber, rate-modulated (DDDR) pacemaker implantation 9 years previously presented to the hospital with complaints of syncope, moderate shortness of breath, and a headache. She denied any other symptoms. Her vital signs were as follows: blood pressure, 110/80mmHg; pulse, 35beats/min (bpm); and respiratory rate, 18 breaths/min. One month before presentation, she had undergone pacemaker replacement due to battery depletion at another hospital.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-10-07
      DOI: 10.1016/j.joa.2016.09.002
       
  • Influence of myopotential interference on the Wavelet discrimination
           algorithm in implantable cardioverter-defibrillator

    • Authors: Kazuya Mizukami; Hisashi Yokoshiki, Hirofumi Mitsuyama, Masaya Watanabe, Taro Tenma, Rui Kamada, Masayuki Takahashi, Ryo Sasaki, Motoki Maeno, Hiroyuki Tsutsui
      Abstract: Wavelet is a morphology-based algorithm for detecting ventricular tachycardia. The electrogram (EGM) source of the Wavelet algorithm is nominally programmed with the Can-RV coil configuration, which records a far-field ventricular potential. Therefore, it may be influenced by myopotential interference.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-10-01
      DOI: 10.1016/j.joa.2016.08.005
       
  • The utility of atrial pacing for identifying the electrical breakthrough
           sites between the left atrium and pulmonary veins

    • Authors: Shinya Sugiura; Koji Matsuoka, Hideki Noda, Naoya Kurata, Misa Uemori, Hirokazu Shioji, Akihiro Takasaki, Takafumi Koji, Takashi Tanigawa, Masaaki Ito
      Abstract: Circumferential pulmonary vein (PV) isolation for atrial fibrillation (AF) is occasionally difficult to achieve because electrical breakthrough sites (EBSs) between the left atrium (LA) and PVs cannot be identified during ablation especially in the carina regions.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-09-19
      DOI: 10.1016/j.joa.2016.08.004
       
  • Inappropriate shocks from a subcutaneous implantable
           cardioverter-defibrillator due to oversensing during periods of
           rate-related bundle branch block

    • Authors: Maria João Sousa; Tim Betts
      Abstract: The subcutaneous implantable cardioverter-defibrillator (S-ICD) is a novel technology with proven efficacy in sudden cardiac death prevention; however, there is a lack of long-term safety data. We describe the case of a 55-year-old female patient implanted with an S-ICD due to idiopathic ventricular fibrillation, who subsequently presented with inappropriate shocks leading to ventricular fibrillation that was successfully terminated by another shock. Inappropriate shocks were due to intermittent T wave oversensing during periods of rate-dependent right bundle branch block.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-09-17
      DOI: 10.1016/j.joa.2016.05.006
       
  • Atrial electromechanical delay in patients undergoing heart
           transplantation

    • Authors: Mustafa Bulut; Mert Evlice, Mehmet Celik, Hayati Eren, Ömer F. Savluk, Rezzan D. Acar, Mustafa Tabakci, Mehmet Y. Emiroglu, Ozlem Otcu (Nurse), Ramazan Kargin, Mehmet Balkanay, Mustafa Akcakoyun
      Abstract: We aimed to assess atrial electromechanical delay (AEMD) in patients who had undergone heart transplantation.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-09-16
      DOI: 10.1016/j.joa.2016.07.015
       
  • Loss of atrial pacing in a patient with a dual-chamber permanent
           pacemaker: What is the mechanism'

    • Authors: Enes Elvin Gul; Usama Boles, Fariha Sadiq Ali, Hoshiar Abdollah
      Abstract: A 56-year-old woman with prior history of dual-chamber permanent pacemaker (PPM) implantation (ELA Medical Symphony DR 2550, ELA Medical, Montrouge, France) for symptomatic complete heart block presented to the Cardiac Rhythm Device Clinic because of increased shortness of breath. A surface 12-lead electrocardiogram (ECG) showed no pacing activity in the atrium (Fig. 1). What is the mechanism'
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-09-15
      DOI: 10.1016/j.joa.2016.08.002
       
  • Comparison of the measured pre-ejection periods and left ventricular
           ejection times between echocardiography and impedance cardiography for
           optimizing cardiac resynchronization therapy

    • Authors: Kazuki Noda; Hideaki Endo, Takahide Kadosaka, Takashi Nakata, Tasuku Watanabe, Yosuke Terui, Shoko Kajitani, Yuto Monnma, Kenjiro Sato, Masanori Kanazawa, Sota Nakajima, Masateru Kondo, Tohru Takahashi, Akihiro Nakamura, Eiji Nozaki
      Abstract: The pre-ejection period (PEP) and left ventricular ejection time (LVET) are easily measured by impedance cardiography (ICG). We hypothesized that the PEP/LVET measured by ICG would correlate with that measured by echocardiography, and that PEP/LVET measured by ICG would be useful for cardiac resynchronization therapy (CRT) optimization.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-09-12
      DOI: 10.1016/j.joa.2016.08.003
       
  • Local conduction during acute myocardial infarction in rats: Interplay
           between central sympathetic activation and endothelin

    • Authors: Theofilos M. Kolettis; Marianthi Kontonika, Vassilios La Rocca, Antonios P. Vlahos, Giannis G. Baltogiannis, Zenon S. Kyriakides
      Abstract: We investigated the effects of autonomic dysfunction and endothelin on local conduction and arrhythmogenesis during myocardial infarction. We recorded ventricular tachyarrhythmias, monophasic action potentials, and activation sequences in wild-type and ETB-deficient rats displaying high endothelin levels. Central sympathetic inputs were examined after clonidine administration. Clonidine mitigated early and delayed arrhythmogenesis in ETB-deficient and wild-type rats, respectively. The right ventricular activation delay increased in clonidine-treated ETB-deficient rats and slightly decreased in wild-type rats.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-08-31
      DOI: 10.1016/j.joa.2016.07.010
       
  • Long RP interval tachycardia. What is the mechanism'

    • Authors: Javier Jiménez-Díaz; María-Arantzazu González-Marín, Juan J. González-Ferrer, Felipe Higuera-Sobrino
      Abstract: A 41-year-old man with a history of tachycardia refractory to multiple antiarrhythmic drugs was sent to our institution. His 12-lead electrocardiogram demonstrated incessant narrow QRS complex tachycardia with negative P waves in the inferior leads and long RP interval. Occasionally, the tachycardia terminated after a P wave and then was restarted after a sinusal beat. An EP study was performed during tachycardia. Intracardiac electrograms during tachycardia and response to pacing maneuvers are shown.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-08-31
      DOI: 10.1016/j.joa.2016.06.004
       
  • Relationship between right and left ventricular function in candidates for
           implantable cardioverter defibrillator with low left ventricular ejection
           fraction

    • Authors: Laura Jimenez-Juan; Gauri R. Karur, Kim A. Connelly, Djeven Deva, Raymond T. Yan, Rachel M. Wald, Sheldon Singh, General Leung, Anastasia Oikonomou, Paul Dorian, Paul Angaran, Andrew T. Yan
      Abstract: Indications for the primary prevention of sudden death using an implantable cardioverter defibrillator (ICD) are based predominantly on left ventricular ejection fraction (LVEF). However, right ventricular ejection fraction (RVEF) is also a known prognostic factor in a variety of structural heart diseases that predispose to sudden cardiac death. We sought to investigate the relationship between right and left ventricular parameters (function and volume) measured by cardiovascular magnetic resonance (CMR) among a broad spectrum of patients considered for an ICD.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-08-31
      DOI: 10.1016/j.joa.2016.07.005
       
  • Comparison of hemodynamic effects of biventricular versus left ventricular
           only pacing in patients receiving cardiac resynchronization therapy: A
           before–after clinical trial

    • Authors: Babak Faghfourian; MD, Shahram Homayoonfar, MD, Mahdi Rezvanjoo, MD, Jalal Poorolajal, MD, PhD, Amir Hossein Emam, MD
      Abstract: Biventricular (BiV) pacing is the most common mode of delivering cardiac resynchronization therapy (CRT). However, initial clinical studies have indicated that left ventricular (LV) pacing is not inferior to BiV pacing. This study was conducted to address whether LV only pacing can provide the same hemodynamic response as BiV pacing.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-08-30
      DOI: 10.1016/j.joa.2016.07.014
       
  • Successful pacemaker lead extraction involving an ossified thrombus: A
           case report

    • Authors: Hideo Okamura; John S. Van Arnam, Marie Christine Aubry, Paul A. Friedman, Yong-Mei Cha
      Abstract: A 41-year-old woman who had been fitted with a pacemaker 18 years prior presented for lead extraction because of device infection. First, we tried laser sheath. However, it cannot cross the binding in the innominate vein. Then we switched to the rotating mechanical sheath. Although it crunched through binding tissue, the progress halted. We removed the sheath and found pieces of calcified tissue in the sheath lumen. After removing the calcified tissue, both leads were extracted using the laser sheath, without complications.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-08-30
      DOI: 10.1016/j.joa.2016.06.007
       
  • Rationale and design of ASSAF-K (A study of the safety and efficacy of
           anticoagulant therapy in the treatment of atrial fibrillation in Kanagawa)
           

    • Authors: Yutaka Hatori; Hiroyuki Sakai, Tomoyuki Kunishima, Nobuo Hatori, Lin Chen, Tomoaki Ishigami, Naoki Satoh, on Behalf of the ASSAF-K Investigators
      Abstract: Atrial fibrillation (AF) is one of the most prevalent cardiac arrhythmias associated with substantially increased risks of ischemic stroke and thromboembolism. Oral anticoagulants (OACs) are the cornerstone of AF management and effectively prevent AF-related stroke. As new non-vitamin K antagonist OACs (NOACs) have become available, the landscape of stroke prevention in AF has changed. However, there are considerable gaps between daily clinical practice and current guideline-based recommendations for anticoagulant therapy in Japan.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-08-26
      DOI: 10.1016/j.joa.2016.07.008
       
  • The inferior displacement of the His bundle and fast pathway in a patient
           with common type atrioventricular nodal tachycardia: Three-dimensional
           computed tomography analysis

    • Authors: Kunihiko Kiuchi; Koji Fukuzawa, Mori Shumpei, Tatsuya Nishii
      Abstract: A 66-year-old woman with palpitations was referred to our center for catheter ablation due to drug-refractory, common type atrioventricular nodal tachycardia (AVNRT). A selective slow pathway ablation was attempted. A fast junctional rhythm with transient ventriculoatrial block followed by transient prolongation of the A–H interval occurred immediately after the radiofrequency (RF) application at the coronary sinus ostium (CSOS) level. To assess the location of the fast pathway and His bundle, we sought to visualize the anatomy of the triangle of Koch (TOK) by three-dimensional computed tomography (CT).
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-08-18
      DOI: 10.1016/j.joa.2016.07.009
       
  • Effectiveness and safety of dabigatran versus warfarin in “real-world”
           Japanese patients with atrial fibrillation: A single-center observational
           study

    • Authors: Miyoko Naganuma; Tsuyoshi Shiga, Takehiko Nagao, Atsushi Suzuki, Kagari Murasaki, Nobuhisa Hagiwara
      Abstract: In “real-world” practice, anticoagulant therapy is indicated for patients whose clinical profiles are not addressed in randomized clinical trials. We assessed the effectiveness and safety of dabigatran versus warfarin in “real-world” Japanese patients with non-valvular atrial fibrillation (NVAF).
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-08-18
      DOI: 10.1016/j.joa.2016.07.007
       
  • Crucial role of pulmonary vein firing as an initiator of typical atrial
           flutter: Evidence of a close relationship between atrial fibrillation and
           typical atrial flutter

    • Authors: Takashi Kaneshiro; Kentaro Yoshida, Yukio Sekiguchi, Hiroshi Tada, Kenji Kuroki, Keisuke Kuga, Yoshiyuki Kamiyama, Hitoshi Suzuki, Yasuchika Takeishi, Kazutaka Aonuma
      Abstract: Several studies reported that cavotricuspid isthmus-dependent atrial flutter (typical AFL) frequently coexists with atrial fibrillation (AF); however, the underlying mechanisms have not been fully investigated. This study aimed to reveal the mechanisms of the initiation of typical AFL and the association between typical AFL and AF.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-08-18
      DOI: 10.1016/j.joa.2016.07.013
       
  • Trends in physiological coagulation factors in Japanese patients receiving
           novel oral anticoagulants

    • Authors: Tomoyuki Nagao; Hiroshi Hunakubo, Mayu Suzuki, Takashi Kataoka, Satoshi Okumura, Norihiro Shinoda, Ken Harada, Bunichi Kato, Masataka Kato, Nobuyuki Marui, Shinichi Sakai, Tetsuya Amano, Toyoaki Murohara
      Abstract: Little is known about physiological anticoagulation effects via antithrombin III (AT III) and protein C/S (PC/PS) in patients using new oral anticoagulants (NOACs).
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-08-12
      DOI: 10.1016/j.joa.2016.07.011
       
  • Major determinants for the selecting antithrombotic therapies in patients
           with nonvalvular atrial fibrillation in Japan (JAPAF study)

    • Authors: Koichi Kusakawa; Kouji H. Harada, Tatsuo Kagimura, Akio Koizumi
      Abstract: Oral anticoagulants (OACs) can help prevent stroke in patients with nonvalvular atrial fibrillation (NVAF). The aim of this study was to characterize the use of OACs other than direct thrombin inhibitors (DTIs) for NVAF.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-08-11
      DOI: 10.1016/j.joa.2016.06.006
       
  • A multicenter study of the need of additional freezing for cryoballoon
           ablation in patients with atrial fibrillation: The AD-Balloon study

    • Authors: Koji Miyamoto; Atsushi Doi, Naoki Amaya, Yoshiaki Morita, Takashi Noda, Masanori Asakura, Toshimitsu Hamasaki, Hiroshi Tada, Masahiko Takagi, Satoshi Yasuda, Kengo Kusano
      Abstract: Pulmonary vein isolation (PVI) is a cornerstone of catheter ablation in patients with paroxysmal atrial fibrillation (PAF), and balloon-based ablation has been recently performed worldwide. Ablation using the second-generation cryoballoon (CB2) (Arctic Front AdvanceTM, Medtronic, MN, USA) is useful for PVI; however, there is some debate concerning the optimal freezing time and number of cycles after PVI is achieved.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-07-27
      DOI: 10.1016/j.joa.2016.06.005
       
  • Spatiotemporal characteristics of atrial fibrillation electrograms: A
           novel marker for arrhythmia stability and termination

    • Authors: Shivshankar Thanigaimani; Anthony G. Brooks, Pawel Kuklik, Darragh J. Twomey, Samantha Franklin, Erik Noschka, Darius Chapman, Rajeev K. Pathak, Rajiv Mahajan, Prashanthan Sanders, Dennis H. Lau
      Abstract: Sequentially mapped complex fractionated atrial electrograms (CFAE) and dominant frequency (DF) sites have been targeted during catheter ablation for atrial fibrillation (AF). However, these strategies have yielded variable success and have not been shown to correlate consistently with AF dynamics. Here, we evaluated whether the spatiotemporal stability of CFAE and DF may be a better marker of AF sustenance and termination.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-07-27
      DOI: 10.1016/j.joa.2016.05.009
       
  • Evaluation of the characteristics of rotational activation at
           high-dominant frequency and complex fractionated atrial electrogram sites
           during atrial fibrillation

    • Authors: Koji Kumagai; Kentaro Minami, Daisuke Kutsuzawa, Shigeru Oshima
      Abstract: High-dominant frequency (DF) and continuous complex fractionated atrial electrogram (CFAE) sites as surrogates for localized sources maintaining atrial fibrillation (AF) are potential AF ablation targets. This study aimed to evaluate the characteristics of a rotational activation at high-DF and continuous CFAE sites in AF patients.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-07-12
      DOI: 10.1016/j.joa.2016.05.008
       
  • Automatic atrial capture device control in real-life practice: A
           multicenter experience

    • Authors: Massimo Giammaria; Gianluca Quirino, Mariangela Alberio, Umberto Parravicini, Eliana Cipolla, Guido Rossetti, Antonio Ruocco, Gaetano Senatore, Francesco Rametta, Paolo Pistelli
      Abstract: Device-based fully automatic pacing capture detection is useful in clinical practice and important in the era of remote care management.The main objective of this study was to verify the effectiveness of the new ACAP Confirm® algorithm in managing atrial capture in the medium term in comparison with early post-implantation testing.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-07-11
      DOI: 10.1016/j.joa.2016.06.002
       
  • Red cell distribution width and all-cause mortality in patients with
           atrial fibrillation: A cohort study

    • Authors: Walid Saliba; Ofra Barnett-Griness, Gad Rennert
      Abstract: Increased red cell distribution width (RDW), a measure of red cell size variability, has been associated with increased mortality in multiple cardiovascular diseases. However, whether RDW is associated with increased mortality in patients with atrial fibrillation remains unknown.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-07-11
      DOI: 10.1016/j.joa.2016.06.001
       
  • Cardiac conduction defects and Brugada syndrome: A family with overlap
           syndrome carrying a nonsense SCN5A mutation

    • Authors: Hisaaki Aoki; Yoshihide Nakamura, Seiko Ohno, Takeru Makiyama, Minoru Horie
      Abstract: Phenotypes often differ even within family members carrying the same SCN5A mutation. We aimed to evaluate the genetic modifiers in a family with Brugada syndrome (BrS) and sick sinus syndrome (SSS) with an SCN5A mutation that causes the truncated alpha-subunit of cardiac Na channel protein.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-07-03
      DOI: 10.1016/j.joa.2016.05.007
       
  • Identification and management of right ventricular perforation using
           pacemaker and cardioverter-defibrillator leads: A case series and mini
           review

    • Authors: Mohammad Ali Akbarzadeh; Reza Mollazadeh, Salma Sefidbakht, Soraya Shahrzad, Negar Bahrololoumi Bafruee
      Abstract: Right ventricular perforation is a rare but serious complication of permanent pacemaker and implantable cardioverter-defibrillator implantation, with a reported prevalence rate of 0.1–6%. Generally, there is a high incidence of asymptomatic lead perforation with otherwise normal function. Some patients present with a stabbing chest pain and shortness of breath or pacemaker malfunction. However, in some cases, tamponade or adjacent tissue injury may be seen. The exact risk factors for lead perforation are not yet clear.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-06-30
      DOI: 10.1016/j.joa.2016.05.005
       
  • Electrophysiologic similarities of overdose between digoxin and
           bufadienolides found in a Chinese aphrodisiac

    • Authors: Maxwell Bressman; Daniel Repplinger, William Slater, Mitchell Platt
      Abstract: Classically derived from toad venom, bufadienolides are a group of cardioactive steroids with properties similar to digoxin. Some traditional Chinese medications, including several aphrodisiacs, contain bufadienolides. Owing to their physiologic similarities to digoxin, bufadienolides have been shown to produce a toxic profile similar to that of digoxin and there have been multiple case reports of the use of these aphrodisiacs resulting in death. This report will describe a case that illustrates the electrophysiologic similarities between bufadienolide toxicity and digoxin toxicity as well as the treatment of bufadienolide toxicity.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-06-30
      DOI: 10.1016/j.joa.2016.05.004
       
  • Mortality and predictors of appropriate implantable cardioverter
           defibrillator therapy in Japanese patients with Multicenter Automatic
           Defibrillator Implantation Trial II criteria

    • Authors: Yoshimori An; Kenji Ando, Yoshimitsu Soga, Akihiro Nomura, Michio Nagashima, Kentaro Hayashi, Yu Makihara, Masato Fukunaga, Ken-ichi Hiroshima, Masakiyo Nobuyoshi, Masahiko Goya
      Abstract: Data regarding long-term mortality and factors influencing appropriate therapies in Japanese patients with implantable cardioverter defibrillators (ICD), who satisfy the Multicenter Automatic Defibrillator Implantation Trial II (MADIT II) criteria for primary prevention, remain scarce.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-06-27
      DOI: 10.1016/j.joa.2016.01.012
       
  • Functional characteristics of left ventricular synchronization via right
           ventricular outflow-tract pacing detected by two-dimensional strain
           echocardiography

    • Authors: Yasutaka Hirayama; Yuichiro Kawamura, Nobuyuki Sato, Tatsuya Saito, Hideichi Tanaka, Yasuaki Saijo, Kenjiro Kikuchi, Katsumi Ohori, Naoyuki Hasebe
      Abstract: Recently, due to the detrimental effects on the ventricular function associated with right ventricular apical (RVA) pacing, right ventricular septal (RVS) pacing has become the preferred pacing method. However, the term RVS pacing refers to both right ventricular outflow-tract (RVOT) and mid-septal (RVMS) pacing, leading to a misinterpretation of the results of clinical studies. The purpose of this study, therefore, was to elucidate the functional differences of RVA, RVOT, and RVMS pacing in patients with atrioventricular block.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-06-24
      DOI: 10.1016/j.joa.2016.04.009
       
  • Reply: Takotsubo syndrome and polymorphic ventricular tachycardia: The
           chicken or the egg

    • Authors: Rintaro Hojo; Seiji Fukamizu, Masayasu Hiraoka
      Abstract: Reply to Dr. Medias
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-06-24
      DOI: 10.1016/j.joa.2016.04.006
       
  • Long-term reliability of sweet-tip type screw-in leads

    • Authors: Asuka Takano; Gaku Sekita, Minako Watanabe, Hiroshi Mukaida, Sayaka Komatsu, Haruna Tabuchi, Hidemori Hayashi, Takashi Tokano, Masataka Sumiyoshi, Yuji Nakazato, Hiroyuki Daida
      Abstract: Active fixation leads have provided stable atrial and ventricular pacing; however, long-term follow-up data have not been satisfactory. The purpose of this study was to investigate the long-term reliability of active fixation leads and their electrical characteristic stability.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-06-22
      DOI: 10.1016/j.joa.2016.04.008
       
  • Bidirectional ventricular tachycardia in cardiac sarcoidosis

    • Authors: Mina M. Benjamin; Kevin Hayes, Michael E. Field, Melvin M. Scheinman, Kurt S. Hoffmayer
      Abstract: A 73-year-old man with history of pulmonary sarcoidosis was found to have runs of non-sustained bidirectional ventricular tachycardia (BVT) with two different QRS morphologies on a Holter monitor. Cardiac magnetic resonance delayed gadolinium imaging revealed a region of patchy mid-myocardial enhancement within the left ventricular basal inferolateral myocardium. An 18-fluorodeoxyglucose positron emission tomography (FDG-PET) showed increased uptake in the same area, consistent with active sarcoid, with no septal involvement.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-06-04
      DOI: 10.1016/j.joa.2016.05.003
       
  • Immediate discontinuation of ablation during pulmonary vein isolation
           remarkably decreases the incidence of esophageal thermal lesions even when
           using steerable sheaths

    • Authors: Norikazu Watanabe; Yuta Chiba, Yoshimi Onishi, Shiro Kawasaki, Yumi Munetsugu, Yoshimasa Onuma, Hiroyuki Itou, Tatsuya Onuki, Yoshino Minoura, Taro Adachi, Mitsuharu Kawamura, Taku Asano, Kaoru Tanno, Yutarou Kubota, Kazuo Konishi, Youichi Kobayashi
      Abstract: Left atrial–esophageal fistulas (LAEFs) are serious complications with high mortality after atrial fibrillation radiofrequency ablation (AFRA). Decreasing the incidence of esophageal thermal lesions (EsoTLs) that may lead to LAEFs is important. The aim of this study was to suppress EsoTL development and determine the appropriate alarm setting for a temperature-monitoring probe by using steerable sheath (STS) methods.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-06-03
      DOI: 10.1016/j.joa.2016.05.001
       
  • Byung Gyu Kim et al.: Reduced systemic vascular resistance is the
           underlying hemodynamic mechanism in nitrate-stimulated vasovagal syncope
           during head-up tilt-table test

    • Authors: Arttu Eräranta; Antti Tikkakoski, Ilkka H. Pörsti
      Abstract: Dear Editor
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-06-01
      DOI: 10.1016/j.joa.2016.04.001
       
  • Detection of sequential activation of left atrium and coronary sinus
           musculature in the general population

    • Authors: Masaki Ota; Yoshiaki Kaneko, Tadashi Nakajima, Tadanobu Irie, Takafumi Iijima, Akihiro Saito, Masahiko Kurabayashi
      Abstract: The direction of impulse propagation across the coronary sinus (CS) musculature (CSM) is an important piece of the mechanistic puzzle underlying atrial tachyarrhythmias. We hypothesized that in the general population, the sequence of left atrial (LA) to CSM electrograms recorded in the CS reflects the direction of impulse propagation over the CSM.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-06-01
      DOI: 10.1016/j.joa.2016.02.003
       
  • Successful intermuscular implantation of subcutaneous implantable
           cardioverter defibrillator in a Japanese patient with pectus excavatum

    • Authors: Yusuke Kondo; Marehiko Ueda, Joachim Winter, Miyo Nakano, Masahiro Nakano, Masayuki Ishimura, Kazuo Miyazawa, Kaoru Tateno, Yoshio Kobayashi
      Abstract: The entirely subcutaneous implantable cardioverter-defibrillator (ICD) system was developed to provide a life-saving defibrillation therapy that does not affect the heart and vasculature. The subcutaneous ICD is preferred over the transvenous ICD for patients with a history of recurrent infection presenting major life-threatening rhythms. In this case report, we describe the first successful intermuscular implantation of a completely subcutaneous ICD in a Japanese patient with pectus excavatum. There were no associated complications with the device implantation or lead positioning.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-06-01
      DOI: 10.1016/j.joa.2016.04.005
       
  • Non-vitamin K antagonist oral anticoagulants versus warfarin for
           cardioversion of atrial fibrillation in clinical practice: A single-center
           experience

    • Authors: Naoki Shibata; Itsuro Morishima, Kenji Okumura, Yasuhiro Morita, Kensuke Takagi, Ruka Yoshida, Hiroaki Nagai, Toshiro Tomomatsu, Yoshihiro Ikai, Kazushi Terada, Kazuhito Tsuzuki, Hideyuki Tsuboi, Takahito Sone, Toyoaki Murohara
      Abstract: Anticoagulation therapy with the vitamin K antagonist (VKA) warfarin has been demonstrated to reduce thromboembolic risk after electrical cardioversion (ECV). However, data concerning ECV with non-VKA oral anticoagulants (NOACs) is limited. The objective of this study was to determine the efficacy and safety of NOACs in patients undergoing ECV in a real-world clinical practice at a single center in Japan.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-06-01
      DOI: 10.1016/j.joa.2016.04.003
       
  • Successful percutaneous epicardial catheter ablation of ventricular
           tachycardia arising from the crux of the heart in a patient with prior
           coronary artery bypass grafting

    • Authors: Naoki Yoshida; Takumi Yamada
      Abstract: A 63-year-old man with a history of remote inferior myocardial infarction and coronary artery bypass grafting (CABG) underwent catheter ablation of ventricular tachycardia (VT). Epicardial catheter ablation of the VT was successful at the crux of the heart despite limited mapping within the pericardial space due to pericardial adhesion. Percutaneous subxiphoidal pericardial approach is usually impossible in patients with a history of open heart surgery due to pericardial adhesions. This report suggested that epicardial VT arising from the crux of the heart could be successfully treated by catheter ablation via subxiphoidal pericardial approach despite pericardial adhesions complicated by prior CABG.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-06-01
      DOI: 10.1016/j.joa.2016.04.007
       
  • Assessment of drug-induced proarrhythmias due to pilsicainide in patients
           with atrial tachyarrhythmias

    • Authors: Hideki Koike; Tadashi Fujino, Makiko Koike, Shintaro Yao, Masaya Shinohara, Ken Kitahara, Toshio Kinoshita, Hitomi Yuzawa, Takeya Suzuki, Hideyuki Sato, Shunji Fukunaga, Kenzaburo Kobayashi, Takanori Ikeda
      Abstract: Pilsicainide, a pure Na+ channel blocker, is a popular antiarrhythmic drug for the management of atrial tachyarrhythmias (AT), in Japan. However, serious drug-induced proarrhythmias (DIPs) may unexpectedly occur. We assessed the clinical background of AT patients presenting with DIPs caused by pilsicainide.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-05-27
      DOI: 10.1016/j.joa.2016.03.004
       
  • Successful resynchronization by permanent His-bundle pacing in a patient
           with pacing-induced cardiomyopathy

    • Authors: Yoji Iida; Tomoaki Izawa, Chikara Kobari, Toru Yatsuhashi, Nobuyuki Makishima
      Abstract: Right ventricular (RV) pacing has been reported to result in ventricular dyssynchrony, heart failure, and increased mortality. Pacing associated deterioration of left ventricular (LV) systolic function has been termed pacing-induced cardiomyopathy (PICM). While upgrading to biventricular pacing (BiVP) is an effective therapy for PICM, permanent His-bundle pacing (HBP) can be a physiological alternative to BiVP. We present a patient with PICM who responded dramatically to permanent HBP.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-05-24
      DOI: 10.1016/j.joa.2016.04.004
       
  • Risk factors for amiodarone-induced thyroid dysfunction in Japan

    • Authors: Sayoko Kinoshita; Tomohiro Hayashi, Kyoichi Wada, Mikie Yamato, Takeshi Kuwahara, Toshihisa Anzai, Mai Fujimoto, Kouichi Hosomi, Mitsutaka Takada
      Abstract: Amiodarone is associated with a number of significant adverse effects, including elevated transaminase levels, pulmonary fibrosis, arrhythmia, and thyroid dysfunction. Although thyroid dysfunction is considered to be a common and potentially serious adverse effect of amiodarone therapy, the exact pathogenesis remains unknown because of its complex manifestations. Therefore, the prevalence of, and risk factors for, amiodarone-induced thyroid dysfunction in Japanese patients were investigated in the present study.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-05-04
      DOI: 10.1016/j.joa.2016.03.008
       
  • Trends and determinant factors in the use of cardiac resynchronization
           therapy devices in Japan: Analysis of the Japan cardiac device treatment
           registry database

    • Authors: Hisashi Yokoshiki; Akihiko Shimizu, Takeshi Mitsuhashi, Hiroshi Furushima, Yukio Sekiguchi, Tetsuyuki Manaka, Nobuhiro Nishii, Takeshi Ueyama, Norishige Morita, Takashi Nitta, Ken Okumura, Members of the Implantable Cardioverter-Defibrillator (ICD) Committee of the Japanese Heart Rhythm Society
      Abstract: The choice of cardiac resynchronization therapy device, with (CRT-D) or without (CRT-P) a defibrillator, in patients with heart failure largely depends on the physician׳s discretion, because it has not been established which subjects benefit most from a defibrillator.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-04-29
      DOI: 10.1016/j.joa.2016.04.002
       
  • The association between defibrillation shock energy and acute cardiac
           damage in patients with implantable cardioverter defibrillators

    • Authors: Daisuke Ishigaki; Daisuke Kutsuzawa, Takanori Arimoto, Tadateru Iwayama, Naoaki Hashimoto, Yu Kumagai, Satoshi Nishiyama, Hiroki Takahashi, Tetsuro Shishido, Takuya Miyamoto, Joji Nitobe, Akio Fukui, Tetsu Watanabe, Isao Kubota
      Abstract: The aim of this study was to establish a minimally invasive defibrillation testing (DT) protocol for patients with implantable cardioverter defibrillators (ICDs).
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-04-26
      DOI: 10.1016/j.joa.2016.03.007
       
  • Temporal sinus node modification by high-dose continuous intravenous
           administration of landiolol in a patient with persistent inappropriate
           sinus tachycardia

    • Authors: Yuichi Hori; Shiro Nakahara, Naofumi Anjo, Yoshihiko Sakai, Isao Taguchi
      Abstract: A 20-year-old woman underwent an electrophysiological study for drug-resistant persistent inappropriate sinus tachycardia (IST). Use of a high-dose continuous intravenous administration of landiolol, a short-acting beta-adrenoreceptor blocker, made the patient׳s heart rate suddenly drop with a slight change in the P-wave morphology. Three-dimensional right atrial (RA) activation mapping revealed that the earliest activation site moved 8mm to a lower anterior site around the high lateral RA. Radiofrequency energy applied to the earliest activation site during tachycardia was successful.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-04-25
      DOI: 10.1016/j.joa.2016.03.003
       
  • Atriofascicular pathway detection with novel ablation catheter

    • Authors: Padmanabhan Shakkottai; Adrian Baranchuk, Neil Hobson, Jane Caldwell
      Abstract: Atriofascicular pathways are a rare cause of antidromic atrioventricular reciprocating tachycardia. The IntellaTip MiFi ablation catheter (Boston Scientific, MA, USA) is a novel ablation catheter that allows enhanced signal clarity with highly localized electrograms. This is the first report of this catheter being successfully used to map and ablate the atriofascicular pathway potentials.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-04-25
      DOI: 10.1016/j.joa.2016.03.006
       
  • Successful cryoballoon pulmonary vein isolation in a patient with situs
           inversus and dextrocardia

    • Authors: Yasuhiro Yoshiga; Akihiko Shimizu, Takeshi Ueyama, Makoto Ono, Tomoko Fumimoto, Hironori Ishiguchi, Masafumi Yano
      Abstract: A 79-year-old man with situs inversus and dextrocardia underwent catheter ablation of symptomatic paroxysmal atrial fibrillation. Pulmonary vein isolation (PVI), using second-generation cryoballoon under Ensite NavX system guidance, was performed successfully in a reverse manner, which required short procedure and fluoroscopy times, as required in a PVI performed on a normal heart without any complications. Cryoballoon-based PVI under Ensite NavX guidance was feasible and safe to achieve a favorable outcome in this patient with abnormal anatomy.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-04-22
      DOI: 10.1016/j.joa.2016.03.005
       
  • Impact of catheter ablation of ventricular tachycardia in patients with
           prior myocardial infarctions

    • Authors: Masato Fukunaga; Masahiko Goya, Kenichi Hiroshima, Kentaro Hayashi, Masatsugu Ohe, Yu Makihara, Michio Nagashima, Yoshimori An, Shinichi Shirai, Kenji Ando, Hiroyoshi Yokoi, Masashi Iwabuchi
      Abstract: Catheter ablation can reduce episodes of ventricular tachycardia (VT) after myocardial infarction (MI). However, the optimal endpoint of the ablation procedure remains unclear.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-04-20
      DOI: 10.1016/j.joa.2016.03.001
       
  • Catheter ablation of anteroseptal accessory pathways from the aortic
           cusps: A case series and a review of the literature

    • Authors: Konstantinos P. Letsas; Michael Efremidis, Konstantinos Vlachos, Stamatis Georgopoulos, Nikolaos Karamichalakis, Athanasios Saplaouras, Sotirios Xydonas, Kosmas Valkanas, Antonios Sideris
      Abstract: Data regarding catheter ablation of anteroseptal accessory pathways through the aortic cusps are limited. We describe two cases of true para-Hisian accessory pathways successfully ablated from the aortic cusps (right coronary cusp and non-coronary cusp, respectively) along with a review of the current literature. Due to the close proximity to the atrioventricular node and the high risk of complication, mapping of the aortic cusps should always be considered in the case of anteroseptal accessory pathways.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-04-19
      DOI: 10.1016/j.joa.2016.02.010
       
  • Is it truly atrial tachycardia'

    • Authors: Yoshiaki Kaneko; Fumio Suzuki
      Abstract: We read the article by Okumura et al. [1] with great interest. The authors reported an ablation strategy applying manifest entrainment to treat adenosine triphosphate (ATP)-sensitive atrial tachycardia (AT) originating from the perinodal region. However, we have some concerns regarding the electrophysiological diagnosis of the tachycardia. The exclusion of atrioventricular nodal reentrant tachycardia (AVNRT) is essentially a prerequisite to diagnose AT. The authors excluded AVNRT based on the findings of atrioventricular dissociation during the ventricular pacing of tachycardia and a V–A–A–V activation sequence on ventricular induction of tachycardia.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-04-13
      DOI: 10.1016/j.joa.2016.03.002
       
  • Clinical and genetic features of Australian families with long QT
           syndrome: A registry-based study

    • Authors: Charlotte Burns; Jodie Ingles, Andrew M. Davis, Vanessa Connell, Belinda Gray, Lauren Hunt, Julie McGaughran, Christopher Semsarian
      Abstract: Familial long QT syndrome (LQTS) is a primary arrhythmogenic disorder caused by mutations in ion channel genes. The phenotype ranges from asymptomatic individuals to sudden cardiac arrest and death. LQTS is a rare but significant health problem for which global data should exist. This study sought to provide the first clinical and genetic description of Australian families with LQTS.
      Citation: Journal of Arrhythmia (2016)
      PubDate: 2016-03-15
      DOI: 10.1016/j.joa.2016.02.001
       
  • WITHDRAWN: “Heparin bridging” increases the risk of bleeding
           complications in patients with prosthetic devices and receiving
           anticoagulation therapy

    • Authors: Ryudo Fujiwara; Akihiro Yoshida, Asumi Takei, Koji Fukuzawa, Kaoru Takami, Mitsuru Takami, Satoko Tanaka, Mitsuaki Ito, Kimitake Imamura, Ken-ichi Hirata
      Abstract: The Publisher regrets that this article is an accidental duplication of an article that has already been published, 10.1016/j.joa.2011.11.003The duplicate article has therefore been withdrawn.
      Citation: Journal of Arrhythmia (2012)
      PubDate: 2012-06-04
      DOI: 10.1016/j.joa.2011.11.003
       
 
 
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