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  Journal of Arrhythmia
  [SJR: 0.119]   [H-I: 2]   Follow
   Full-text available via subscription Subscription journal
   ISSN (Print) 1880-4276 - ISSN (Online) 1883-2148
   Published by Elsevier Homepage  [2812 journals]
  • Editorial Board
    • Citation: Journal of Arrhythmia 31, 2 (2015)
      PubDate: 2015-04
      DOI: 10.1016/S1880-4276(15)00048-4
      Issue No: Vol. 31, No. 2 (2015)
  • A case of extensive encircling pulmonary vein isolation in a patient with
           severe scoliosis
    • Authors: Takahiro Kamihara; Shinji Kaneko, Masaya Fujita, Kazutoshi Yamaguchi, Shingo Narita, Tomoaki Haga, Daisuke Hayashi, Taiki Ohashi, Ryuji Kubota, Masanori Shinoda
      Abstract: The patient was a 62-year-old man with atrial fibrillation and severe scoliosis. Scoliosis may impair cardiorespiratory function. Enhanced computed tomography (CT) was helpful for the Brockenbrough method. Three-dimensional (3D) mapping also demonstrated clockwise rotation of the heart. We successfully isolated extensive encircling pulmonary vein in this patient using enhanced CT and 3D mapping. The CT venous images revealed appropriate localization of the vein and heart. CT and 3D mapping may ensure a more stable and safer procedure.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-05-21
      DOI: 10.1016/j.joa.2015.04.005
  • Persistence of non-vitamin K antagonist oral anticoagulant use in Japanese
           patients with atrial fibrillation: A single-center observational study
    • Authors: Tsuyoshi Shiga; Miyoko Naganuma, Takehiko Nagao, Kenji Maruyama, Atsushi Suzuki, Kagari Murasaki, Nobuhisa Hagiwara
      Abstract: Non-vitamin K antagonist oral anticoagulants (NOACs) show a favorable balance between efficacy and safety compared with warfarin for patients with non-valvular atrial fibrillation (NVAF). In “real-world” practice, however, NOAC adherence and persistence among patients are not clear. The aim of this study is to evaluate NOAC and warfarin persistence in Japanese patients with NVAF who newly started these drugs.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-05-18
      DOI: 10.1016/j.joa.2015.04.004
  • Comparison of the effects of bepridil and aprindine for the prevention of
           atrial fibrillation after cardiac and aortic surgery: A prospective
           randomized study
    • Authors: Mahito Ozawa; Takashi Komatsu, Yoshihiro Sato, Fusanori Kunugita, Hideaki Tachibana, Atsushi Tashiro, Hitoshi Okabayashi, Motoyuki Nakamura
      Abstract: Approximately one-third of the patients undergoing cardiovascular surgery reportedly experience paroxysmal atrial fibrillation (AF) during the postoperative period. However, the usefulness of antiarrhythmic drugs for preventing postoperative AF recurrence in the Japanese population has not been extensively studied.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-05-16
      DOI: 10.1016/j.joa.2015.04.003
  • Permanent cardiac pacing in a patient with persistent left superior vena
           cava and concomitant agenesis of the right-sided superior vena cava
    • Authors: M. Hassine; S. Hamdi, G. Chniti, M. Boussaada, N. Bouchehda, M. Mahjoub, K. Ben Hamda, F. Betbout, F. Maatouk, H. Gamra
      Abstract: Persistent left superior vena cava (PLSVC) can be incidentally detected during pacemaker implantation from the left pectoral side. Optimal site pacing is technically difficult, and lead stability of the right ventricle (RV) can lead to such a situation. We describe a case of successful single-chamber pacemaker implantation in a 76-year-old woman with a PLSVC and concomitant agenesis of the right-sided superior vena cava, after failed attempts with the conventional procedure. The pacemaker had been working well after 12 months of follow-up.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-05-15
      DOI: 10.1016/j.joa.2015.03.008
  • Usefulness of the wearable cardioverter defibrillator in patients in the
           early post-myocardial infarction phase with high risk of sudden cardiac
           death: A single-center European experience
    • Authors: Yusuke Kondo; Markus Linhart, René P. Andrié, Joerg O. Schwab
      Abstract: The effectiveness of the wearable cardioverter defibrillator (WCD) therapy in early post-myocardial infarction (MI) patients remains uncertain.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-05-14
      DOI: 10.1016/j.joa.2015.03.007
  • Usefulness of brain natriuretic peptide for predicting left atrial
           appendage thrombus in patients with unanticoagulated nonvalvular
           persistent atrial fibrillation
    • Authors: Yusuke Ochiumi; Eisuke Kagawa, Masaya Kato, Shota Sasaki, Yoshinori Nakano, Kiho Itakura, Yu Takiguchi, Shuntaro Ikeda, Keigo Dote
      Abstract: The CHADS2 scoring system is simple and widely accepted for predicting thromboembolism in patients with nonvalvular atrial fibrillation (NVAF). Although congestive heart failure (CHF) is a component of the CHADS2 score, the definition of CHF remains unclear. We previously reported that the presence of CHF was a strong predictor of left atrial appendage (LAA) thrombus. Therefore, the present study aimed to elucidate the relationship between LAA thrombus and the brain natriuretic peptide (BNP) level in patients with unanticoagulated NVAF.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-05-13
      DOI: 10.1016/j.joa.2015.04.002
  • Celebrating a launch of new scientific society
    • Authors: Ken Okumura
      Abstract: On behalf of the Japanese Heart Rhythm Society (JHRS), I am pleased to announce that we JHRS are merged with the Japanese Society of Electrocardiology (JCE) in 2015. Both societies have about 30-year history since their establishments, and have contributed to the development of sciences, education and spread in the field of the cardiac electrophysiology and arrhythmias. JHRS and JCE are registering a new general incorporated association in May, 2015, and the title is the Japanese Arrhythmia and Electrocardiology Society in Japanese and the Japanese Heart Rhythm Society in English.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-05-12
      DOI: 10.1016/j.joa.2015.04.001
  • Topographic variability of the left atrium and pulmonary veins assessed by
           3D-CT predicts the recurrence of atrial fibrillation after catheter
    • Authors: Kunihiko Kiuchi; Akihiro Yoshida, Asumi Takei, Koji Fukuzawa, Mitsuaki Itoh, Kimitake Imamura, Ryudo Fujiwara, Atsushi Suzuki, Tomoyuki Nakanishi, Soichiro Yamashita, Ken-ichi Hirata, Gaku Kanda, Katsunori Okajima, Akira Shimane, Shinichiro Yamada, Yasuyo Taniguchi, Yoshinori Yasaka, Hiroya Kawai
      Abstract: Catheter ablation (CA) is an established therapy for atrial fibrillation (AF). However, the assessment of anatomical information and predictors of AF recurrence remain unclear. We investigated the relationship between anatomical information on the left atrium (LA) and pulmonary veins (PVs) from three-dimensional computed tomography images and the recurrence of AF after CA.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-04-25
      DOI: 10.1016/j.joa.2015.03.006
  • Ablation of an atriofascicular accessory pathway with a zero-fluoroscopy
    • Authors: Riccardo Proietti; Sylvia Abadir, Martin L. Bernier, Vidal Essebag
      Abstract: A 16-year-old patient with recurrent palpitations and documented left bundle branch block superior axis wide complex tachycardia underwent an electrophysiological study and ablation with a zero-fluoroscopy procedure. The electrophysiological study showed a decremental antegrade conducting atriofascicular pathway. Three-dimensional CARTO-guided mapping of the tricuspid annulus in sinus rhythm was performed, and a distinct signal corresponding to the accessory pathway potential of the atriofascicular pathway was found in the posterolateral region.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-04-22
      DOI: 10.1016/j.joa.2015.03.005
  • A case of paroxysmal atrial fibrillation with a non-pulmonary vein trigger
           identified by intravenous adenosine triphosphate infusion
    • Authors: Masahiro Esato; Naoto Nishina, Yoshitomi Kida, YeongHwa Chun
      Abstract: A 54-year-old woman was referred to our institution with frequent chest discomfort and was diagnosed with drug-refractory paroxysmal atrial fibrillation. Radiofrequency catheter ablation (RFCA) was performed using a three-dimensional electroanatomic mapping system. After completion of left and right circumferential pulmonary vein isolation (CPVI), an intravenous bolus of adenosine triphosphate (ATP, 20mg) was administered to evaluate the electric reconduction between the pulmonary vein (PV) and left atrium (LA).
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-04-21
      DOI: 10.1016/j.joa.2015.03.004
  • Reduced systemic vascular resistance Is the underlying hemodynamic
           mechanism in nitrate-stimulated vasovagal syncope during head-up
           tilt-table test
    • Authors: Byung Gyu Kim; Sung Woo Cho, Hye Young Lee, Deok Hee Kim, Young Sup Byun, Choong Won Goh, Kun Joo Rhee, Byung Ok Kim
      Abstract: Nitroglycerin (NTG) challenge during head-up tilt-table testing (HUTT) is often utilized to determine the etiology of unexplained vascular syncope. However, conflicting results concerning nitrate-induced hemodynamic changes during HUTT have been reported. The purpose of this study was to assess the determinants of presyncopal symptoms during NTG-stimulated HUTT.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-04-16
      DOI: 10.1016/j.joa.2014.11.008
  • Prevention of immediate recurrence of atrial fibrillation with low-dose
           landiolol after radiofrequency catheter ablation
    • Authors: Daisuke Ishigaki; Takanori Arimoto, Tadateru Iwayama, Naoaki Hashimoto, Daisuke Kutsuzawa, Yu Kumagai, Satoshi Nishiyama, Hiroki Takahashi, Tetsuro Shishido, Takuya Miyamoto, Tetsu Watanabe, Isao Kubota
      Abstract: Immediate recurrence of atrial fibrillation (AF) after radiofrequency (RF) catheter ablation is commonly observed within 3d after the procedure. The mechanism and pharmacological management of immediate AF recurrence remain unclear.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-04-04
      DOI: 10.1016/j.joa.2015.02.003
  • Q wave and ST segment elevation in inferior leads: What is the
    • Authors: Morteza Safi; Isa Khaheshi, Mehdi Memaryan, Mohammad Ali Akbarzadeh
      Abstract: A 78-year-old obese woman consulted our cardiology department immediately after open cholecystectomy because of substernal and epigastric pain radiating to the back, accompanied by nausea and vomiting.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-04-01
      DOI: 10.1016/j.joa.2015.03.001
  • Coved-type ST-elevation during ablation of ischemic ventricular
    • Authors: Yuichi Hori; Shiro Nakahara, Naofumi Tsukada, Ayako Nakagawa, Akiko Hayashi, Takaaki Komatsu, Sayuki Kobayashi, Yoshihiko Sakai, Isao Taguchi
      Abstract: A coved-type electrocardiogram (ECG) change in Brugada syndrome is suggested to be the result of abnormally delayed depolarization over the right ventricular outflow tract; however, ischemia of the conus branch of the right coronary artery presents the same ECG change. A 63-year-old man with a history of myocardial infarction demonstrated a transient coved-type ECG change during catheter ablation of ventricular tachycardia. The ECG change appeared during left ventricular mapping without any chest symptoms, and recovered spontaneously.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-03-24
      DOI: 10.1016/j.joa.2015.02.001
  • Pace mapping in the atrium using bipolar electrograms from widely spaced
    • Authors: Raja J. Selvaraj; Sreekanth Yerram, Pradeep Kumar, Santhosh Satheesh, Ajith Ananthakrishna Pillai, Mahesh Kumar Saktheeswaran, Jayaraman Balachander
      Abstract: Pace mapping is a useful tool but is of limited utility for the atrium because of poor spatial resolution. We investigated the use of bipolar electrograms recorded from widely spaced electrodes in order to improve the resolution of pace mapping.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-03-22
      DOI: 10.1016/j.joa.2015.02.002
  • Sudden manifestation of sinus arrest nine months after catheter ablation
           treatment for persistent atrial fibrillation
    • Authors: Masateru Takigawa; Taishi Kuwahara, Kenji Okubo, Atsushi Takahashi
      Abstract: A 39-year-old man with a seemingly non-remodeled, small heart suffered persistent atrial fibrillation (AF). Extensive isolation of the pulmonary vein, superior vena cava, and posterior left atrium, in conjunction with right atrium focal ablation, was performed to ablate multiple AF foci during two catheter ablation sessions. Sinus arrest occurred suddenly during follow-up, despite the absence of recurrent AF, ultimately necessitating pacemaker implantation. This case underscores the necessity of careful follow-up after catheter ablation, highlighting the risk of sudden, severe sinus node dysfunction, even in young AF patients with small hearts.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-03-19
      DOI: 10.1016/j.joa.2014.11.007
  • Seasonal, weekly, and circadian distribution of ventricular fibrillation
           in patients with J-wave syndrome from the J-PREVENT registry
    • Authors: Shingo Maeda; Yoshihide Takahashi, Akihiko Nogami, Yasuteru Yamauchi, Yuki Osaka, Yasuhiro Shirai, Kensuke Ihara, Yasuhiro Yokoyama, Makoto Suzuki, Kaoru Okishige, Mitsuhiro Nishizaki, Kenzo Hirao
      Abstract: Ventricular fibrillation (VF) in Brugada syndrome (BrS) is known to occur more frequently during nighttime and from spring to early summer. In this study, we investigated whether early repolarization syndrome (ERS) has the same seasonal, weekly, and circadian distribution of VF events as BrS using data from the “J-wave associated with prior cardiac event” (J-PREVENT) registry.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-03-17
      DOI: 10.1016/j.joa.2015.01.004
  • Right coronary artery perforation by an active-fixation atrial pacing lead
           resulting in life-threatening tamponade
    • Authors: Eiichiro Nakagawa; Yukio Abe, Ryushi Komatsu, Takahiko Naruko, Akira Itoh
      Abstract: Cardiac tamponade resulting from perforation of a cardiac chamber is a relatively rare complication of pacemaker implantation. We report the first case of perforation of the right coronary artery related to the implantation of a screw-in atrial pacing lead, presenting as life-threatening cardiac tamponade.We report the case of a 72-year-old woman with complete atrioventricular block and dyspnea on exertion. A permanent pacemaker was implanted with bipolar Medtronic active-fixation leads positioned in the right atrial appendage and at the right ventricular basal septum without any difficulty.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-03-17
      DOI: 10.1016/j.joa.2015.01.002
  • Left atrial thrombus formation and resolution during dabigatran therapy: A
           Japanese Heart Rhythm Society report
    • Authors: Hideo Mitamura; Takayuki Nagai, Atsuyuki Watanabe, Seiji Takatsuki, Ken Okumura
      Abstract: Protocols on the use of novel oral anticoagulants for stroke prevention in patients with atrial fibrillation (AF) undergoing electrical cardioversion (ECV) are lacking.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-03-04
      DOI: 10.1016/j.joa.2014.12.010
  • Electrophysiological and anatomical background of the fusion configuration
           of diastolic and presystolic Purkinje potentials in patients with
           verapamil-sensitive idiopathic left ventricular tachycardia
    • Authors: Hiroshi Taniguchi; Yoshinori Kobayashi, Mitsunori Maruyama, Norishige Morita, Meiso Hayashi, Yasushi Miyauchi, Wataru Shimizu
      Abstract: It is unclear whether false tendons (FTs) are a substantial part of the reentry circuit of verapamil-sensitive idiopathic left ventricular tachycardia (ILVT). This study aimed to prove the association between FTs and the slow conduction zone by evaluating the electro-anatomical relationship between the so-called diastolic Purkinje (Pd) potentials and FTs using an electro-anatomical mapping (EAM) system (CARTO).
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-02-24
      DOI: 10.1016/j.joa.2015.01.003
  • Usefulness of a wearable cardioverter defibrillator combined with catheter
           ablation for ventricular tachyarrhythmia storms after a myocardial
           infarction: A case report
    • Authors: Yusuke Yoshikawa; Kazuaki Kaitani, Naoaki Onishi, Toshihiro Tamura, Chisato Izumi, Yoshihisa Nakagawa
      Abstract: We report a case of a 60-year-old man with recurrent poly- and monomorphic ventricular tachycardia related to a recent myocardial infarction. Due to drug-refractory ventricular tachycardia despite complete revascularization, he underwent catheter ablation. Afterwards, he was fitted with a wearable cardioverter defibrillator. Three months later, no ventricular tachycardia had been recorded and an electrophysiologic study failed to induce an episode. Thus, wearable cardioverter defibrillators are useful bridging devices pending a final decision to implant a cardioverter defibrillator.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-02-16
      DOI: 10.1016/j.joa.2014.12.009
  • Inappropriate mode switching clarified by using a chest radiograph
    • Authors: Brian Marino; Abhishek Jaiswal, Seth Goldbarg
      Abstract: An 80-year-old woman with a history of paroxysmal atrial fibrillation and atrioventricular node disease status post-dual chamber pacemaker placement was noted to have abnormal pacing episodes during a percutaneous coronary intervention. Pacemaker interrogation revealed a high number of short duration mode switching episodes. Representative electrograms demonstrated high frequency nonphysiologic recordings predominantly in the atrial lead. Intrinsic pacemaker malfunction was excluded. A chest radiograph showed excess atrial and ventricular lead slack in the right ventricular inflow.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-02-13
      DOI: 10.1016/j.joa.2015.01.001
  • The effectiveness of cardiac resynchronization therapy for patients with
           New York Heart Association class IV non-ambulatory heart failure
    • Authors: Soichiro Yamashita; Koji Fukuzawa, Akihiro Yoshida, Mitsuaki Itoh, Kimitake Imamura, Ryudo Fujiwara, Atsushi Suzuki, Tomoyuki Nakanishi, Akinori Matsumoto, Gaku Kanda, Kunihiko Kiuchi, Akira Shimane, Katsunori Okajima, Hidekazu Tanaka, Ken-ichi Hirata
      Abstract: We reviewed the effectiveness and safety of cardiac resynchronization therapy (CRT) for patients with New York Heart Association (NYHA) class IV non-ambulatory heart failure (NAHF).
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-02-13
      DOI: 10.1016/j.joa.2014.12.008
  • Coexistence of persistent left superior vena cava with common inferior
           pulmonary vein in a patient with atrial fibrillation
    • Authors: Kunihiko Kiuchi; Katsunori Okajima, Yu Takahashi, Kiminobu Yokoi, Akira Shimane
      Abstract: Coexistence of a persistent left superior vena cava (PLSVC) with a common inferior pulmonary vein (CIPV) is very rare. The electrical assessment of those thoracic veins was performed during the atrial fibrillation ablation.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-02-11
      DOI: 10.1016/j.joa.2014.12.007
  • Increased defibrillator therapies during influenza season in patients
           without influenza vaccines
    • Authors: Sheldon M. Singh; Russell J. de Souza, Ramanan Kumareswaran
      Abstract: The association between influenza vaccination and implantable cardiac defibrillator (ICD) therapies during influenza season is not known and is described in this study. Understanding this association is important since reduction in ICD therapies during influenza season via use of influenza vaccination would benefit patients physically and psychologically.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-02-03
      DOI: 10.1016/j.joa.2014.12.006
  • Prophylactic catheter ablation of ventricular tachycardia before
           cardioverter-defibrillator implantation in patients with non-ischemic
           cardiomyopathy: Clinical outcomes after a single endocardial ablation
    • Authors: Atsushi Suzuki; Akihiro Yoshida, Asumi Takei, Koji Fukuzawa, Kunihiko Kiuchi, Kaoru Takami, Mitsuaki Itoh, Kimitake Imamura, Ryudo Fujiwara, Tomoyuki Nakanishi, Soichiro Yamashita, Akinori Matsumoto, Akira Shimane, Katsunori Okajima, Ken-ichi Hirata
      Abstract: Outcomes related to prophylactic catheter ablation (PCA) for ventricular tachycardia (VT) before implantable cardioverter-defibrillator (ICD) implantation in non-ischemic cardiomyopathy (NICM) are not well characterized. We assessed the efficacy of single endocardial PCA in NICM patients.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-02-03
      DOI: 10.1016/j.joa.2014.09.007
  • Ventricular bigeminy in acute organophorous poisoning – A rare ECG
    • Authors: Bharati Taksande; Bhawik Dhirawani
      Abstract: India being a land of farmer, the pesticides are freely and easily available and therefore organophosphorous poisoning is one of the major health issues. Suicidal poisoning is more common than accidental poisoning. Cardiac manifestations of organophosphorous poisoning are well known. It results in various electrocardiographic changes from sinus tachycardia to ST elevation. We hereby present a rare ECG finding of ventricular bigeminy in a case of acute organophosphorous poisoning.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-02-02
      DOI: 10.1016/j.joa.2014.12.004
  • Prevalence and associated factors of early repolarization pattern in
           healthy young northeastern Thai men: A correlation study with Brugada
    • Authors: Pattarapong Makarawate; Narumol Chaosuwannakit, Yossavadee Ruamcharoen, Aunejit Panthongviriyakul, Choowong Pongchaiyakul, Prapapan Tharaksa, Temsiri Sripo, Kittisak Sawanyawisuth
      Abstract: Early repolarization pattern (ERP) is characterized by J-point elevation with QRS notching or slurring in the terminal portion of the QRS complex. It may be associated with sudden death. Brugada syndrome (BS) is a genetic and fatal disease commonly found in northeastern Thai men. Data on the rate and predictors of ERP in Asian populations are limited. In addition, the correlation between ERP and BS has never been studied in an endemic area of BS. This study aimed to evaluate the prevalence of ERP and its associated factors in young, healthy male Asian subjects.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-01-29
      DOI: 10.1016/j.joa.2014.12.005
  • Successful transjugular extraction of a lead in front of the anterior
           scalene muscle by using snare technique
    • Authors: Ayako Okada; Kazunori Aizawa, Takeshi Tomita, Kouji Yoshie, Takahiro Takeuchi, Morio Shoda, Uichi Ikeda
      Abstract: The incidence of cardiovascular implantable electronic device infection is increasing. We report a case of and successful device removal in a 79-year-old man with implantable cardioverter-defibrillator infection. Right phrenic nerve paralysis was evident on chest radiography. The lead was in front of the anterior scalene muscle, close to the left phrenic nerve. Therefore, extraction carried a risk of bilateral phrenic nerve paralysis. The lead was successfully extracted from the right internal jugular vein by using the snare technique.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-01-17
      DOI: 10.1016/j.joa.2014.12.002
  • Feasibility and accuracy of a new mobile electrocardiography device,
           ER-2000, in the diagnosis of arrhythmia
    • Authors: Yae Min Park; Dae In Lee, Hwan Cheol Park, Jaemin Shim, Jong-Il Choi, Hong Euy Lim, Sang Weon Park, Young-Hoon Kim
      Abstract: We performed this study to evaluate the feasibility and accuracy of a new mobile electrocardiography (ECG) device, ER-2000®, in detecting cardiac arrhythmia, by comparing it to a 12-lead ECG used as the gold standard.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-01-13
      DOI: 10.1016/j.joa.2014.12.003
  • Dramatic improvement of refractory anemia caused by mechanical hemolysis
           in a patient with hypertrophic obstructive cardiomyopathy using
           dual-chamber pacing
    • Authors: Yosuke Miwa; Kyoko Soejima, Toshiaki Sato, Kenichi Matsushita, Junsuke Sueoka, Nobuyuki Takayama, Hideaki Yoshino
      Abstract: A 59-year-old woman with hypertrophic obstructive cardiomyopathy was admitted to our institution with worsening heart failure. She developed mechanical intracardiac hemolysis due to left ventricular outflow tract (LVOT) obstruction. Despite surgical myectomy, the LVOT pressure gradient (PG) remained high and hemolytic anemia recurred. A dual-chamber implantable cardioverter defibrillator was then implanted, which decreased the LVOT-PG and improved hemolysis.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-01-02
      DOI: 10.1016/j.joa.2014.12.001
  • Comments from the Editor-in-Chief of Journal of Arrhythmia
    • Authors: Kazutaka Aonuma
      First page: 69
      Abstract: Your support for the Journal of Arrhythmia (JOA), official journal of the Japan Heart Rhythm Society (JHRS) and the Asia Pacific Heart Rhythm Society (APHRS), is sincerely appreciated.
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-04-13
      DOI: 10.1016/j.joa.2015.03.003
  • Comments from the President of APHRS
    • Authors: Young-Hoon Kim
      First page: 70
      Abstract: Dear Members of JHRS and APHRS
      Citation: Journal of Arrhythmia (2015)
      PubDate: 2015-04-16
      DOI: 10.1016/j.joa.2015.03.002
  • Malignant conversion of benign right ventricular outflow track ventricular
           tachycardia 18 years post-ablation
    • Authors: Wendy H. Gerstein; Neal S. Gerstein, Andrea Sandoval, Michael B. West
      Abstract: This case report describes the rare phenomenon of malignant conversion of benign right ventricular outflow tract ventricular tachycardia into idiopathic ventricular fibrillation 18 years after successful ablation, in the absence of any type of heart disease. We review the current literature looking at predictors for this event, with the conclusion that there are no reliable risk predictors available. Until clear guidelines exist, we suggest patients be informed and monitored for the possibility of “malignant conversion” following ablation for benign idiopathic outflow tract ventricular tachycardia.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-12-30
      DOI: 10.1016/j.joa.2014.11.005
  • Acquisition of the pulmonary venous and left atrial anatomy with
           non-contrast-enhanced MRI for catheter ablation of atrial fibrillation:
           Usefulness of two-dimensional balanced steady-state free precession
    • Authors: Yutaka Shigenaga; Kunihiko Kiuchi, Katsunori Okajima, Kazushi Ikeuchi, Takayuki Ikeda, Akira Shimane, Kiminobu Yokoi, Jin Teranishi, Kousuke Aoki, Misato Chimura, Hideyuki Masai, Shinichiro Yamada, Yasuyo Taniguchi, Yoshinori Yasaka, Hiroya Kawai
      Abstract: Usually, the pulmonary venous and left atrial (PV–LA) anatomy is assessed with contrast-enhanced computed tomographic imaging for catheter ablation of atrial fibrillation (AF). A non-contrast-enhanced magnetic resonance (MR) imaging method has not been established. Three-dimensional balanced steady-state free precession (3D b-SSFP) sequences cannot visualize the PV–LA anatomy simultaneously because of the signal intensity defect of pulmonary veins. We compared two-dimensional (2D) b-SSFP sequences with 3D b-SSFP sequences in depicting the PV–LA anatomy with non-contrast-enhanced MR imaging for AF ablation.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-12-23
      DOI: 10.1016/j.joa.2014.11.006
  • Inadvertent puncture of the aortic noncoronary cusp during postoperative
           left atrial tachycardia ablation
    • Authors: Dursun Aras; Ozcan Ozeke, Serkan Cay, Firat Ozcan, Meryem Kara, Serkan Topaloglu
      Abstract: Transseptal catheterization has become part of the interventional electrophysiologist׳s technical armamentarium since the development of left atrial catheter ablation and percutaneous technologies for treating mitral and aortic valve disease. Although frequently performed, the procedure׳s most feared complication is aortic root penetration. Focal atrial tachycardia has been described as the most common late sequela of surgical valve replacements. We present a complicated case involving the inadvertent delivery of an 8 French sheath across the noncoronary cusp during radiofrequency catheter ablation for left atrial tachycardia originating from the mitral annulus in a patient with prior mitral valve replacement.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-12-18
      DOI: 10.1016/j.joa.2014.11.004
  • Relationship between plasma dabigatran concentration and activated partial
           thromboplastin time in Japanese patients with non-valvular atrial
    • Authors: Daiki Shimomura; Yoshihisa Nakagawa, Hirokazu Kondo, Toshihiro Tamura, Masashi Amano, Yukiko Hayama, Naoaki Onishi, Yodo Tamaki, Makoto Miyake, Kazuaki Kaitani, Chisato Izumi, Masahiko Hayashida, Aya Fukuda, Fumihiko Nakamura, Seiji Kawano
      Abstract: Activated partial thromboplastin time (aPTT) is recommended for monitoring anticoagulant activity in dabigatran-treated patients; however, there are limited data in Japanese patients. To clarify the relationship between plasma dabigatran concentration and aPTT, we analyzed plasma dabigatran concentration and aPTT at various time points following administration of oral dabigatran in a Japanese hospital.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-12-18
      DOI: 10.1016/j.joa.2014.11.003
  • Right-sided infective endocarditis as a potentially fatal complication in
           patients with long-term refractory severe bradyarrhythmia after cervical
           spinal cord injury: A case report
    • Authors: Naoki Miura; Hideaki Suzuki, Shota Maesawa, Tomoaki Koakutsu, Yasuharu Matsumoto, Koji Fukuda, Yutaka Kagaya, Shigeki Kushimoto, Hiroaki Shimokawa
      Abstract: Bradyarrhythmia is usually a spontaneously subsiding complication of cervical spinal cord injury. However, in severe cases, it can lead to cardiac arrest. We report a case of cervical spinal cord injury, complicated by right-sided infective endocarditis after the placement of a temporary pacing catheter in the right ventricle for severe bradyarrhythmia that led to cardiac arrest. Although the patient׳s condition was successfully treated by pacing catheter removal and pharmacological therapy, right-sided infective endocarditis would be a fatal complication in cases of cervical spinal cord injury where cardiac pacing is required for long-term refractory severe bradyarrhythmia.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-12-06
      DOI: 10.1016/j.joa.2014.11.002
  • Fabry cardiomyopathy presenting with a high defibrillation threshold: A
           short case report
    • Authors: Takashi Kanda; Masaharu Masuda, Akihiro Sunaga, Masashi Fujita, Osamu Iida, Shin Okamoto, Takayuki Ishihara, Kiyonori Nanto, Tatsuya Shiraki, Fusako Sera, Masaaki Uematsu
      Abstract: Fabry disease is an X-linked recessive glycosphingolipid storage disorder caused by a deficiency of lysosomal enzyme α-galactosidase A. It is recognized that Fabry disease patients often have ventricular arrhythmias. Although the effectiveness of implantable cardioverter-defibrillator (ICD) therapy in patients with ventricular fibrillation is established, there is little evidence regarding ICD therapy for Fabry disease. Here, we report the case of patient with Fabry disease who was treated with an ICD and presented with high defibrillation thresholds.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-12-02
  • Programmed electrical stimulation for risk stratification of patients with
           ischemic cardiomyopathy
    • Authors: Asaf Danon; Jorge E. Schliamser, Idit Lavi, Arie Militianu
      Abstract: Patients with ischemic cardiomyopathy (ICM) are at an increased risk for sudden death. Although earlier trials used programmed electrical stimulation (PES) for risk stratification, more recent data demonstrate the benefit of implantable cardiac defibrillators (ICDs) in selected patients with reduced left ventricular ejection fraction (LVEF) without performing PES. However, little is known about the outcome of non-inducible patients. The purpose of this study was to evaluate the efficacy of PES for mortality risk stratification in patients with ICM.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-12-01
  • Demonstration of a hidden interaction between the aortomitral continuity
           and the conduction system in a case of idiopathic left ventricular outflow
           tract ventricular tachycardia
    • Authors: Masahiro Mizobuchi; Yoshihisa Enjoji
      Abstract: We describe a case of idiopathic left ventricular outflow ventricular tachycardia. Monomorphic ventricular arrhythmia (VA) with a right bundle branch block morphology and an inferior axis was induced through exercise or isoproterenol infusion. During VA bigeminy, a spiked presystolic potential (PP) preceding the VA with a qrS pattern in the unipolar electrogram was recorded at the aortomitral continuity (AMC). Radiofrequency catheter ablation eliminated the VA despite the persistence of sinus-PP bigeminy.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-11-27
  • Immediate electrical storm of Torsades de Pointes after CRT-D implantation
           in an ischemic cardiomyopathy patient
    • Authors: Adnan Kaya; Aylin Sungur, Ahmet Ilker Tekkesin, Ceyhan Turkkan, Ahmet Taha Alper
      Abstract: Cardiac resynchronization therapy with an implantable cardioverter-defibrillator (CRT-D) is the preferred treatment for patients with severe heart failure, dyssynchrony, and an increased risk of sudden cardiac death or for primary ventricular arrhythmia survivors. Rarely, left ventricular epicardial pacing can induce ventricular tachyarrhythmia rather than a beneficial effect. We describe an ischemic cardiomyopathy patient who underwent CRT-D therapy and developed sustained torsades de pointes (TdP) immediately after switching to biventricular pacing (BVP) mode.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-11-27
  • Visualization of the radiofrequency lesion after pulmonary vein isolation
           using delayed enhancement magnetic resonance imaging fused with magnetic
           resonance angiography
    • Authors: Kunihiko Kiuchi; Katsunori Okajima, Akira Shimane, Kiminobu Yokoi, Jin Teranishi, Kousuke Aoki, Misato Chimura, Hideo Tsubata, Taishi Miyata, Yuuki Matsuoka, Takayoshi Toba, Shogo Ohishi, Takahiro Sawada, Yasue Tsukishiro, Tetsuari Onishi, Seiichi Kobayashi, Shinichiro Yamada, Yasuyo Taniguchi, Yoshinori Yasaka, Hiroya Kawai, Kazushi Ikeuchi, Yutaka Shigenaga, Takayuki Ikeda
      Abstract: The radiofrequency (RF) lesions for atrial fibrillation (AF) ablation can be visualized by delayed enhancement magnetic resonance imaging (DE-MRI). However, the quality of anatomical information provided by DE-MRI is not adequate due to its spatial resolution. In contrast, magnetic resonance angiography (MRA) provides similar information regarding the left atrium (LA) and pulmonary veins (PVs) as computed tomography angiography. We hypothesized that DE-MRI fused with MRA will compensate for the inadequate image quality provided by DE-MRI.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-11-27
  • Frequent neurally mediated reflex syncope in a young patient with
           dextrocardia: Efficacy of catheter ablation of the superior vena
           cava–aorta ganglionated plexus
    • Authors: Hidetaka Suenaga; Masato Murakami, Tomoyuki Tani, Shigeru Saito
      Abstract: Neurally mediated reflex syncope is the most common cause of syncope in young individuals without cardiac or neurological pathology. We report a case of successful catheter ablation in a 17-year-old male with neurally mediated syncope (NMS) of the cardioinhibitory type. The patient had dextrocardia situs inversus totalis with a mirror-image reversal of the thoracic and abdominal organs. Because he experienced multiple syncope episodes despite pharmacological intervention, we performed endocardial ablation of the superior vena cava–aorta ganglionated plexus.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-11-26
  • Usefulness of entrainment mapping using the activation sequence of the
           last captured excitation in complex dual-loop atrial tachycardia
    • Authors: Akira Fujiki; Ryozo Yoshioka, Masao Sakabe
      Abstract: Electroanatomical mapping is useful for locating the atrial reentrant circuit, but analysis of the dynamic relation of the reentrant circuit is sometimes difficult. This article describes three cases of complex dual-loop reentrant atrial tachycardia analyzed by entrainment mapping using not only the postpacing interval (PPI) but also the activation sequence of the last captured beats.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-11-06
      DOI: 10.1016/j.joa.2014.09.006
  • Failure of communication and capture: The perils of temporary unipolar
           pacing system
    • Authors: Efe Sahinoglu; Thomas J. Wool, Kenneth J. Wool
      Abstract: We present a case of a patient with pacemaker dependence secondary to complete heart block who developed loss of capture of her temporary pacemaker. Patient developed torsades de pointes then ventricular fibrillation, requiring CPR and external cardioversion. After patient was stabilized, it was noticed that loss of capture of pacemaker corresponded with nursing care, when the pulse generator was lifted off patient׳s chest wall, and that patient׳s temporary pacing system had been programmed to unipolar mode without knowledge of attending cardiologist.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-10-29
      DOI: 10.1016/j.joa.2014.09.004
  • Investigation of optimal position for implantable loop recorders by
           potential mapping with Reveal DX
    • Authors: Akira Kawashima; Fumi Tanimoto, Tsuyoshi Nagao, Takeshi Toyoshima, Yuji Okuyama
      Abstract: Electrode positioning is important for the operation of implantable loop recorders (ILRs). This study aimed to investigate optimal electrode positions for the implantation of ILRs.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-10-23
      DOI: 10.1016/j.joa.2014.09.005
  • Left intraventricular dyssynchrony caused by a false tendon
    • Authors: Tadanobu Irie; Koji Kurosawa, Yoshiaki Kaneko, Tadashi Nakajima, Rieko Tateno, Masahiko Kurabayashi
      Abstract: Left ventricular (LV) false tendons are usually benign, intraventricular myocardial structures, which may cause functional malfunction or deformation of the LV cavity due to mechanical stretching and dilatation of the LV wall. We present a case of non-ischemic cardiomyopathy complicated with intraventricular dyssynchrony that was caused by complete left bundle branch block and the mechanical pressure exerted by the stiff false tendon on the weakened mid-septum during systole.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-10-22
      DOI: 10.1016/j.joa.2014.09.002
  • Defibrillation lead placement using a transthoracic transatrial approach
           in a case without transvenous access due to lack of the right superior
           vena cava
    • Authors: Yosuke Otsuka; Hideo Okamura, Syunsuke Sato, Ikutaro Nakajima, Kohei Ishibashi, Kouji Miyamoto, Takashi Noda, Takeshi Aiba, Shiro Kamakura, Junjiro Kobayashi, Satoshi Yasuda, Hisao Ogawa, Kengo Kusano
      Abstract: A 65-year-old woman with a history of syncope was diagnosed with hypertrophic cardiomyopathy. She had previously undergone mastectomy of the left breast owing to breast cancer. Holter electrocardiogram (ECG) and monitor ECG revealed sick sinus syndrome (Type II) and non-sustained ventricular tachycardia. Sustained ventricular tachycardia and ventricular fibrillation were induced in an electrophysiological study. Although the patient was eligible for treatment with a dual chamber implantable cardioverter defibrillator (ICD), venography revealed lack of the right superior vena cava (R-SVC).
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-10-21
      DOI: 10.1016/j.joa.2014.09.003
  • Visualizing radiofrequency lesions using delayed-enhancement magnetic
           resonance imaging in patients with atrial fibrillation: A modification of
           the method used by the University of Utah group
    • Authors: Kunihiko Kiuchi; Katsunori Okajima, Akira Shimane, Kiminobu Yokoi, Jin Teranishi, Kousuke Aoki, Misato Chimura, Hideo Tsubata, Taishi Miyata, Yuuki Matsuoka, Takayoshi Toba, Shogo Ohishi, Takahiro Sawada, Yasue Tsukishiro, Tetsuari Onishi, Seiichi Kobayashi, Shinichiro Yamada, Yasuyo Taniguchi, Yoshinori Yasaka, Hiroya Kawai, Kazushi Ikeuchi, Yutaka Shigenaga, Takayuki Ikeda
      First page: 71
      Abstract: Atrial tissue fibrosis has previously been identified using delayed-enhancement MRI (DE-MRI) in patients with atrial fibrillation (AF). Although the clinical importance of DE-MRI is well recognized, the visualization of atrial fibrosis and radiofrequency (RF) lesions has still not been achieved in Japan, primarily because of the differences in contrast agents, volume-rendering tools, and technical experience. The objective of this study was to visualize RF lesions by using commercially available tools.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-08-07
      DOI: 10.1016/j.joa.2014.06.005
  • Oral direct renin inhibitor aliskiren reduces oxidative stress and serum
           matrix metalloproteinase-2 levels in patients with permanent atrial
    • Authors: Yoshizumi Takei; Minoru Ichikawa, Yoshiyuki Kijima
      First page: 76
      Abstract: We aimed to determine the effects of the oral direct renin inhibitor aliskiren on in vivo oxidative stress in atrial fibrillation (AF) patients. In this study, 150mg oral direct renin inhibitor aliskiren was administered once daily to 12 permanent AF patients. Aliskiren significantly reduced urinary excretion of the oxidative stress biomarker 8-iso-prostglandin F2α and serum levels of matrix metalloproteinase-2(MMP-2). We concluded that aliskiren reduces in vivo oxidative stress and serum MMP-2 levels in patients with permanent AF.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-08-26
      DOI: 10.1016/j.joa.2014.07.002
  • Enlargement of the left atrium is associated with increased infiltration
           of immune cells in patients with atrial fibrillation who had undergone
    • Authors: Takeshi Yamashita; Akiko Sekiguchi, Shinya Suzuki, Takayuki Ohtsuka, Koichi Sagara, Hiroaki Tanabe, Takashi Kunihara, Hitoshi Sawada, Tadanori Aizawa
      First page: 78
      Abstract: Enlargement of the left atrium (LA) is a risk factor of atrial fibrillation (AF) recurrence after pharmacological and nonpharmacological interventions for AF. However, structural changes associated with LA enlargement have not been fully elucidated.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-08-23
      DOI: 10.1016/j.joa.2014.07.003
  • Japan Implantable Devices in Coronary Artery Disease (JID-CAD) study
    • Authors: Akihiko Shimizu; Takeshi Mitsuhashi, Takashi Nitta, Hideo Mitamura, Takashi Kurita, Haruhiko Abe, Yuji Nakazato, Naokata Sumitomo, Kazushige Kadota, Kazuo Kimura, Ken Okumura, the Committee for Implantable Devices Enrollment Assessment in the Japanese Heart Rhythm Society
      First page: 83
      Abstract: There is little information regarding appropriate therapies for coronary artery disease (CAD) patients with implantable devices – such as implantable cardioverter-defibrillators (ICDs), cardiac resynchronization therapy devices (CRT-Ds) and cardiac resynchronization therapy pacemaker (CRT-P) devices – in Japan. To address this lack of information, we have launched the Japan Implantable Devices in Coronary Artery Disease (JID-CAD) study.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-09-14
      DOI: 10.1016/j.joa.2014.07.005
  • Recurrence of atrial fibrillation within three months after pulmonary vein
           isolation for patients with paroxysmal atrial fibrillation: Analysis using
           external loop recorder with auto-trigger function
    • Authors: Shiro Kawasaki; Kaoru Tanno, Akinori Ochi, Koichiro Inokuchi, Yuta Chiba, Yoshimi Onishi, Yoshimasa Onuma, Yumi Munetsugu, Miwa Kikuchi, Hiroyuki Ito, Tatsuya Onuki, Fumito Miyoshi, Yoshino Minoura, Norikazu Watanabe, Taro Adachi, Taku Asano, Youichi Kobayashi
      First page: 88
      Abstract: Pulmonary vein isolation (PVI) via catheter ablation has been shown to be a highly effective treatment option for patients with symptomatic paroxysmal atrial fibrillation (AF). The recurrence of AF within 3 months after PVI is not considered to be the result of ablation procedure failure, because early recurrence of AF is not always associated with late recurrence. We examined the usefulness of an external loop recorder with an auto-trigger function (ELR-AUTO) for the detection of atrial fibrillation following PVI to characterize early recurrence and to determine the implications of AF occurrence within 3 months after PVI.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-09-20
      DOI: 10.1016/j.joa.2014.08.002
  • Evaluation of defibrillation safety and shock reduction in implantable
           cardioverter-defibrillator patients with increased time to detection: A
           randomized SANKS study
    • Authors: Mahito Noro; Xin Zhu, Takahito Takagi, Naohiko Sahara, Yuriko Narabayashi, Hikari Hashimoto, Naoshi Ito, Yoshinari Enomoto, Shingo Kujime, Tuyoshi Sakai, Takao Sakata, Noriko Matushita, Seiji Fukamizu, Yoshifumi Okano, Yoshiaki Anami, Tomoyuki Tejima, Kouji Kuroiwa, Takanori Ikeda, Harumizu Sakurada, Kaoru Sugi
      First page: 94
      Abstract: The need for ways to minimize the number of implantable cardioverter-defibrillator (ICD) shocks is increasing owing to the risk of its adverse effects on life expectancy. Studies have shown that a longer detection time for ventricular tachyarrhythmia reduces the safety of therapies, in terms of syncope and mortality, but not substantially in terms of the success rate. We aimed to evaluate the effects of increased number of intervals to detect (NID) VF on the safety of ICD shock therapy and on the reduction of inappropriate shocks.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-09-25
      DOI: 10.1016/j.joa.2014.08.003
  • Spatial and temporal variability of the complex fractionated atrial
           electrogram activity and dominant frequency in human atrial fibrillation
    • Authors: Rikitake Kogawa; Yasuo Okumura, Ichiro Watanabe, Masayoshi Kofune, Koichi Nagashima, Hiroaki Mano, Kazumasa Sonoda, Naoko Sasaki, Kimie Ohkubo, Toshiko Nakai, Atsushi Hirayama
      First page: 101
      Abstract: The presence of complex fractionated atrial electrograms (CFAEs) and high dominant frequencies (DFs) during atrial fibrillation (AF) have been demonstrated to be related to AF maintenance. Therefore, sequential mapping of CFAEs and DFs have been used for target sites of AF ablation. However, such mapping strategies are valid only if the CFAEs and DFs are spatiotemporally stable during the mapping procedure. We obtained spatially stable multi-electrode recordings to assess the spatiotemporal stability of CFAEs and DFs.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-09-25
      DOI: 10.1016/j.joa.2014.08.004
  • Magnetic resonance imaging of the left atrial appendage post pulmonary
           vein isolation: Implications for percutaneous left atrial appendage
    • Authors: Sheldon M. Singh; Laura Jimenez-Juan, Asaf Danon, Gorka Bastarrika, Andriy V. Shmatukha, Graham A. Wright, Eugene Crystal
      First page: 108
      Abstract: There is increasing interest in performing left atrial appendage (LAA) occlusion at the time of atrial fibrillation (AF) ablation procedures. However, to date there has been no description of the acute changes to the LAA immediately following pulmonary vein (PV) isolation and additional left atrium (LA) substrate modification. This study assessed changes in the size and tissue characteristics of the LAA ostium in patients undergoing PV isolation.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-09-23
      DOI: 10.1016/j.joa.2014.08.005
  • Premature ventricular beats initiate recurrent ventricular fibrillation in
           early repolarization syndrome
    • Authors: Nauman Ahmed; Antonio Frontera, Edward Duncan, Glyn Thomas
      First page: 114
      Abstract: An early repolarization (ER) pattern on electrocardiography was historically considered a benign finding; however, this finding in the inferior and lateral leads has recently been associated with idiopathic ventricular fibrillation (VF). Here we describe a case of a 29-year-old man with an ER pattern, who experienced recurrent implantable cardioverter-defibrillator (ICD) shocks for ventricular tachycardia (VT) and VF. An ICD interrogation demonstrated how VF and VT were repeatedly initiated by closely coupled premature ventricular beats.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-08-28
      DOI: 10.1016/j.joa.2014.07.001
  • Is it a typical crosstalk: Need for re-implantation?
    • Authors: Zeynettin Kaya; Kursat Akbuga, Alpay Aribas, Ilknur Can
      First page: 116
      Abstract: With constantly evolving technology and an ever-increasing number of patients with pacemakers, clinicians will encounter various pacemaker malfunctions in their practice. While some of these issues can be solved even by using only the pacemaker׳s mode settings, others require re-intervention; neglecting a pacemaker׳s malfunction without full investigation threatens the patient׳s life. In this report, we describe a patient with a dual-chamber pacemaker with neglected or unresolved dyssynchronization that occurred 2 years after implantation.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-08-26
      DOI: 10.1016/j.joa.2014.07.004
  • QRS–ST–T triangulation with repolarization shortening as a
           precursor of sustained ventricular tachycardia during acute myocardial
    • Authors: Velislav N. Batchvarov; Elijah R. Behr
      First page: 118
      Abstract: We present segments from a 24-hour 12-lead digital Holter recording in a 48-year-old man demonstrating transient ST elevations in the inferior leads that triggered sustained ventricular tachycardia/ventricular fibrillation (VT/VF) requiring cardioversion. The onset of VT was preceded by a gradual increase in the ST with marked QRS broadening that lacked distinction between the end of the QRS and the beginning of the ST (QRS–ST–T “triangulation”), and shortening of the QT interval not caused by an increased heart rate.
      Citation: Journal of Arrhythmia (2014)
      PubDate: 2014-09-20
      DOI: 10.1016/j.joa.2014.08.006
  • 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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