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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  [3043 journals]
  • Atriofascicular Mahaim with Ebstein anomaly: A case report

    • Authors: Kazushi Ueshima; Yoshihide Nakamura, Satoru Takeno, Toshiharu Miyake, Tsukasa Takemura
      Abstract: We report a case of a 7-year-old girl with atriofascicular Mahaim (AFM) pathway concomitant with Ebstein's anomaly. The QRS wave showed left bundle branch block pattern on electrocardiogram. Holter electrocardiogram showed prolongation of the PR interval and QRS morphological change during sinus tachycardia. An electrophysiological study demonstrated that the distal His potential appeared earlier than the proximal His potential, which suggested retrograde His conduction toward the atrioventricular node.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-08-08
      DOI: 10.1016/j.joa.2017.06.007
  • The electrical circuit of a hemodynamically unstable and recurrent

    • Authors: Masateru Takigawa; Antonio Frontera, Nathaniel Thompson, Stefano Capellino, Pierre Jais, Frederic Sacher
      Abstract: Herein, we report a 47-year-old woman with ischemic cardiomyopathy who underwent ablation therapy due to an electrical storm without any triggers. The voltage mapping in sinus rhythm with the Rhythmia system and Orion catheter displayed several LAVAs in and around the anteroapical scar area. Although the patient did not tolerate the induced clinical ventricular tachycardia, which was reproductively induced, 35-second-mapping in the scar zone with the Orion catheter demonstrated the VT circuit with the critical isthmus.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-08-02
      DOI: 10.1016/j.joa.2017.06.002
  • Three cases of vasospastic angina following catheter ablation of atrial

    • Authors: Yoshihiko Kagawa; Eitaro Fujii, Satoshi Fujita, Norikazu Yamada, Masaaki Ito
      Abstract: Pulmonary vein isolation is an effective treatment for patients with atrial fibrillation (AF).Although vasospastic angina (VSA) is not a common complication after ablation of AF, we report 3 cases of VSA following ablation of persistent AF. Two of the 3 patients felt chest pain following pulmonary vein isolation, and complex fractionated atrial electrogram ablations were performed. ST elevation in the inferior leads and atrioventricular block occurred because of severe coronary vasospasm. In the third patient, the electrocardiography monitor detected transient ST elevation within an hour after ablation.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-07-31
      DOI: 10.1016/j.joa.2017.07.003
  • Management of patients with long QT syndrome

    • Authors: Serkan Cay; Ozcan Ozeke, Firat Ozcan, Serhat Koca, Aysenur Pac, Dursun Aras, Serkan Topaloglu
      Abstract: I have read with great interest the case report entitled “Epicardially placed implantable cardioverter-defibrillator for a child with congenital long QT syndrome” by Sugiyama et al. in the latest issue of the journal [1]. The authors well presented a case of long QT syndrome managed using implantation of an epicardial shock electrode and dose titration of beta-blocker therapy. However, some important issues should be mentioned. As compared to beta-blocker therapy with metoprolol, treatment with nadolol has been shown to significantly decrease breakthrough cardiac events in symptomatic patients [2].
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-07-31
      DOI: 10.1016/j.joa.2017.07.002
  • CHADS2 and modified CHA2DS2-VASc scores for the prediction of congestive
           heart failure in patients with nonvalvular atrial fibrillation

    • Authors: Yorihiko Koeda; Takashi Komatsu, Yuki Matsuura, Hidemi Morioka, Yohei Uchimura, Yuya Taguchi, Kentaro Tanaka, Jun Kawakami, Marie Nakamura, Shuko Takahashi, Yuji Takahashi, Yujiro Naganuma, Hiroshi Endo, Tatsuro Ito, Yoshihiro Morino, Motoyuki Nakamura
      Abstract: We have conducted a retrospective observational study to analyze the correlation between the CHADS2 score, the modified CHA2DS2-VASc (mCHA2DS2-VASc) score, and the incidence of all-cause death and congestive heart failure (CHF).
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-07-31
      DOI: 10.1016/j.joa.2017.06.006
  • The influence of residual apixaban on bleeding complications during and
           after catheter ablation of atrial fibrillation

    • Authors: Yutaro Mukai; Kyoichi Wada, Koji Miyamoto, Kazuki Nakagita, Mai Fujimoto, Kouichi Hosomi, Takeshi Kuwahara, Mitsutaka Takada, Kengo Kusano, Akira Oita
      Abstract: The periprocedural protocol for atrial fibrillation (AF) ablation commonly includes anticoagulation therapy. Apixaban, a direct oral anticoagulant, is currently approved for clinical use; however, little is known about the effects of residual apixaban concentration on bleeding complications during/after AF ablation. Therefore, we measured residual apixaban concentration by using mass spectrometry and examined the anticoagulant's residual effects on bleeding complications.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-07-28
      DOI: 10.1016/j.joa.2017.06.005
  • Sudden failure of ventricular pacing and recovery in a patient with
           cardiac sarcoidosis

    • Authors: Yosuke Terui; Akihiro Nakamura, Hideaki Endo, Takahide Kadosaka, Takashi Nakata, Tasuku Watanabe, Kenjiro Sato, Masanori Kanazawa, Masateru Kondo, Tohru Takahashi, Eiji Nozaki
      Abstract: A 76-year-old woman with sarcoidosis who had an implantable pacemaker for complete atrioventricular block was admitted with syncope. Electrocardiogram revealed ventricular pacing failure, and a marked rise in the ventricular pacing threshold. 18F-Fluorodeoxyglucose positron emission tomography (FDG-PET) indicated increased uptake of FDG in the ventricular septum. Three days after steroid therapy, the ventricular pacing threshold reverted to normal, and FDG-PET showed decreased FDG uptake in the ventricular septum.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-07-26
      DOI: 10.1016/j.joa.2017.06.004
  • Minimally invasive, pericardial implantable cardioverter-defibrillator
           placement in a young child

    • Authors: Wakana Maki; Hiroko Asakai, Kazuhiro Shiraga, Takahiro Shindo, Yoichiro Hirata, Ryo Inuzuka, Yasutaka Hirata, Akira Oka
      Abstract: We report the successful minimally invasive placement of a pericardial implantable cardioverter-defibrillator (ICD) in a 16-kg child. A transvenous ICD dual coil was advanced through a small subxiphoid incision and screwed into the oblique sinus pericardium under fluoroscopic guidance. An additional sense-pace lead was sutured onto the right ventricular apex, and the generator was placed in the upper abdominal wall through the same incision. Threshold testing demonstrated successful defibrillation at 15J.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-07-26
      DOI: 10.1016/j.joa.2017.06.003
  • A new mapping method to estimate exit sites of ventricular arrhythmias
           using intracardiac echocardiography and M-mode for catheter ablation

    • Authors: Osamu Inaba; Junichi Nitta, Syunsuke Kuroda, Masahiro Sekigawa, Masahito Suzuki, Yukihiro Inamura, Akira Satoh, Mitsuaki Isobe, Kenzo Hirao
      Abstract: Catheter ablation of premature ventricular complexes (PVCs) has been used as a curative therapy in many cases. Intracardiac ultrasound with a magnetic sensor probe has recently become available for catheter ablation. In this study, we assessed a new mapping method, contraction mapping, for determining the optimal ablation sites using intracardiac ultrasound and M-mode. This study sought to assess the accuracy of the new mapping method using intracardiac echocardiography.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-07-10
      DOI: 10.1016/j.joa.2017.05.006
  • Indications for suboptimal low-dose direct oral anticoagulants for
           non-valvular atrial fibrillation patients

    • Authors: Masahiko Umei; Mikio Kishi, Takahiro Sato, Akito Shindo, Masayuki Toyoda, Masaaki Yokoyama, Masashiro Matsushita, Satoshi Ohnishi, Masao Yamasaki
      Abstract: Direct oral anticoagulants (DOACs) have been developed for stroke prevention in patients with non-valvular atrial fibrillation (NVAF). We conducted a retrospective cohort study of patients with NVAF who were newly treated with DOACs in a real-world clinical setting.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-06-30
      DOI: 10.1016/j.joa.2017.05.008
  • Left atrial remodeling: Regional differences between paroxysmal and
           persistent atrial fibrillation

    • Authors: Rikitake Kogawa; Yasuo Okumura, Ichiro Watanabe, Koichi Nagashima, Keiko Takahashi, Kazuki Iso, Ryuta Watanabe, Masaru Arai, Sayaka Kurokawa, Kimie Ohkubo, Toshiko Nakai, Atsushi Hirayama, Kazumasa Sonoda, Toshimasa Tosaka
      Abstract: The mechanisms underlying self-perpetuation of persistent atrial fibrillation (AF) are not well understood. To gain insight into these mechanisms, we conducted a study comparing left atrial (LA) electroanatomic maps obtained during sinus rhythm between patients with paroxysmal AF (PAF) and patients with persistent AF (PerAF).
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-06-29
      DOI: 10.1016/j.joa.2017.06.001
  • Ambulatory electrocardiogram monitoring devices for evaluating transient
           loss of consciousness or other related symptoms

    • Authors: Ritsuko Kohno; Haruhiko Abe, David G. Benditt
      Abstract: Capturing electrocardiograms (ECGs) during spontaneous events is the most powerful available tool to identify or exclude an arrhythmic cause of symptoms, and often can elucidate the definite diagnosis for different conditions, such as transient loss of consciousness (T-LOC), lightheadedness, or palpitations. Current ambulatory ECG monitoring technologies include 24-hour Holter, wearable event recorder, external loop recorder (ELR), and insertable cardiac monitoring (ICM). Of them, Holter ECG is most frequently used in daily practice in Japan, while ELR and ICM are less frequently used.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-06-29
      DOI: 10.1016/j.joa.2017.04.012
  • Landiolol suppression of electrical storm of torsades de pointes in
           patients with congenital long-QT syndrome type 2 and myocardial ischemia

    • Authors: Ryota Kitajima; Takeshi Aiba, Tsukasa Kamakura, Kohei Ishibashi, Mitsuru Wada, Yuko Inoue, Koji Miyamoto, Hideo Okamura, Takashi Noda, Satoshi Nagase, Yu Kataoka, Yasuhide Asaumi, Teruo Noguchi, Satoshi Yasuda, Kengo Kusano
      Abstract: A 76-year-old man who had been diagnosed with long-QT syndrome type 2 had frequent syncopal attacks. The electrocardiogram was monitored, and frequent torsades de pointes (TdP) was detected despite administration of conventional medications: oral propranolol, verapamil, intravenous magnesium sulfate, verapamil, and lidocaine. In contrast, 2μg/kg/min landiolol could completely suppress TdP. Subsequently, an implantable cardioverter defibrillator was placed, and he was diagnosed with silent myocardial ischemia using myocardial perfusion scintigraphy and coronary angiography.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-06-27
      DOI: 10.1016/j.joa.2017.05.007
  • 2017 consensus of the Asia Pacific Heart Rhythm Society on stroke
           prevention in atrial fibrillation

    • Authors: Chern-En Chiang; Ken Okumura, Shu Zhang, Tze-Fan Chao, Chung-Wah Siu, Toon Wei Lim, Anil Saxena, Yoshihide Takahashi, Wee Siong Teo
      Abstract: Atrial fibrillation (AF) is the most common sustained arrhythmia, causing a 2-fold increase in mortality and a 5-fold increase in stroke. The Asian population is rapidly aging, and in 2050, the estimated population with AF will reach 72 million, of whom 2.9 million may suffer from AF-associated stroke. Therefore, stroke prevention in AF is an urgent issue in Asia. Many innovative advances in the management of AF-associated stroke have emerged recently, including new scoring systems for predicting stroke and bleeding risks, the development of non-vitamin K antagonist oral anticoagulants (NOACs), knowledge of their special benefits in Asians, and new techniques.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-06-27
      DOI: 10.1016/j.joa.2017.05.004
  • Radiofrequency catheter ablation is effective for atrial fibrillation
           patients with hypertrophic cardiomyopathy by decreasing left atrial

    • Authors: Hiroki Ikenaga; Yukiko Nakano, Noboru Oda, Kazuyoshi Suenari, Akinori Sairaku, Takehito Tokuyama, Hiroshi Kawazoe, Hiroya Matsumura, Shunsuke Tomomori, Yasuki Kihara
      Abstract: Radiofrequency catheter ablation (RFCA) for atrial fibrillation (AF) refractory to medical therapy remains controversial in patients with hypertrophic cardiomyopathy (HCM); the acute effects on the direct left atrial (LA) pressure are not completely understood.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-06-24
      DOI: 10.1016/j.joa.2016.08.006
  • Association between serum soluble urokinase-type plasminogen activator
           receptor and atrial fibrillation

    • Authors: Noboru Ichihara; Masatoshi Miyamura, Daichi Maeda, Tomohiro Fujisaka, Shu-ichi Fujita, Hideaki Morita, Yoshihiro Takeda, Takahide Ito, Koichi Sohmiya, Masaaki Hoshiga, Nobukazu Ishizaka
      Abstract: Circulating soluble urokinase-type plasminogen activator receptor (suPAR), which can reflect immune activation and low-grade inflammation, may be a novel biomarker of cardiovascular disease.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-06-13
      DOI: 10.1016/j.joa.2017.05.003
  • Long-term survival of implantable cardioverter defibrillator recipients
           with end-stage renal disease

    • Authors: Mikhael F. El-Chami; Lea Matar, Paige Smith, Mary Casey, Maher A. Addish, Kimberly Kelly, Carolyn Wood, John Merlino, Abhinav Goyal, Angel R. Leon, Faisal M. Merchant
      Abstract: The efficacy of implantable cardioverter-defibrillators (ICD) for primary prevention of sudden cardiac death (SCD) has not been studied in patients with end-stage renal disease (ESRD) and left ventricular dysfunction. We sought to identify predictors of long-term survival among ICD recipients with and without ESRD.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-06-13
      DOI: 10.1016/j.joa.2017.05.002
  • Arrhythmogenic left atrial roof vein

    • Authors: Hidehira Fukaya; Shinichi Niwano, Hironori Nakamura, Tazuru Igarashi, Tamami Fujiishi, Naruya Ishizue, Akira Satoh, Jun Kishihara, Junya Ako
      Abstract: A seventy year-old male was referred to our hospital to undergo radiofrequency catheter ablation (RFCA) for drug-refractory paroxysmal atrial fibrillation (AF). Pre-operative three-dimensional computed tomography revealed a unique left atrial (LA) roof vein. Electrophysiological findings showed expansion of the myocardial sleeve and local firing in the LA roof vein. We performed isolation of this arrhythmogenic abnormal vein concomitant with general pulmonary vein isolation in this case, and AF did not recur after the procedure.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-05-30
      DOI: 10.1016/j.joa.2017.04.011
  • Incidence and predictors of pericardial effusion as an early complication
           of catheter ablation for atrial fibrillation: The Japanese Catheter
           Ablation Registry of Atrial Fibrillation (J-CARAF)

    • Authors: Yuji Murakawa; Teiichi Yamane, Masahiko Goya, Koichi Inoue, Shigeto Naito, Koichiro Kumagai, Yasushi Miyauchi, Norishige Morita, Akihiko Nogami, Morio Shoda, Ken Okumura, Kenzo Hirao, on behalf of the Japanese Heart Rhythm Society Members
      Abstract: Pericardial effusion (PE) is one of the most frequent complications from catheter ablation of atrial fibrillation (AF). We assessed the prevalence and predictive factors of PE that require invasive treatment as an early complication of AF ablation.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-05-26
      DOI: 10.1016/j.joa.2017.04.009
  • Concealed conduction of premature ventricular complexes resulting in AV
           nodal block

    • Authors: Ying Zi Oh; Vern Hsen Tan, Kelvin CK Wong
      Abstract: .
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-05-20
      DOI: 10.1016/j.joa.2017.04.010
  • Brain magnetic resonance imaging examination in a patient with
           non-magnetic resonance conditional pacemaker

    • Authors: Toshiko Nakai; Toshiaki Sato, Kyoko Soejima, Yusuke Takamine, Mitsuru Watanabe, Kazutaka Kobayashi, Hideki Oshima, Chikashi Fukaya, Yasuo Okumura, Kimie Ohkubo, Satoshi Kunimoto, Ichiro Watanabe, Atsuo Yoshino, Atsushi Hirayama
      Abstract: Clinical dilemmas arise when patients with a non-magnetic resonance (MR) conditional pacemaker are required to undergo magnetic resonance imaging (MRI). We encountered a pacemaker patient with debilitating non-motor symptoms of Parkinson׳s disease, who required an MRI prior to deep brain stimulation (DBS) surgery. MRI was performed safely without adverse events despite the presence of a conventional pacemaker.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-05-19
      DOI: 10.1016/j.joa.2017.04.008
  • Driving restrictions for patients with reflex syncope

    • Authors: Masataka Sumiyoshi
      Abstract: Reflex syncope is the most common form of syncope that occurs while driving. The 2014 revision of Japanese Road Traffic Laws placed stricter driving restrictions, along with some associated legal penalties, on individuals with recurrent syncope. “Recurrent syncope” is defined as the occurrence of more than two episodes of syncope over a period of 5 years. No restrictions are recommended for private drivers unless they experience syncope without a reliable prodrome while driving or sitting. For commercial drivers, a driving restriction is recommended unless the efficacy of treatment can be confirmed.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-05-17
      DOI: 10.1016/j.joa.2017.03.009
  • Reflex syncope: Diagnosis and treatment

    • Authors: Richard Sutton
      Abstract: For the diagnosis of reflex syncope, diligent history-building with the patient and a witness is required. In the Emergency Department (ED), the assessment of syncope is a challenge which may be addressed by an ED Observation Unit or by a referral to a Syncope Unit. Hospital admission is necessary for those with life-threatening cardiac conditions although risk stratification remains an unsolved problem. Other patients may be investigated with less urgency by carotid sinus massage (>40 years), tilt testing, and electrocardiogram loop recorder insertion resulting in a clear cause for syncope.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-05-17
      DOI: 10.1016/j.joa.2017.03.007
  • Paroxysmal atrial fibrillation recurrences and quality of life in
           symptomatic patients: A crossover study of flecainide and pilsicainide

    • Authors: Tsuyoshi Shiga; Koichiro Yoshioka, Eiichi Watanabe, Hisako Omori, Masahiro Yagi, Yasuo Okumura, Naoki Matsumoto, Kengo Kusano, Chikara Oshiro, Takanori Ikeda, Naohiko Takahashi, Takashi Komatsu, Atsushi Suzuki, Tsuyoshi Suzuki, Yasuto Sato, Takeshi Yamashita, on behalf of the AF-QOL study investigators
      Abstract: The therapeutic goals of atrial fibrillation (AF) patients are to reduce symptoms and prevent severe complications associated with AF. This study compared the efficacy of flecainide versus pilsicainide in reducing the frequency of AF and improving quality of life (QOL) in symptomatic paroxysmal AF patients without structural heart disease.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-05-17
      DOI: 10.1016/j.joa.2017.03.005
  • Refractory ventricular tachycardia caused by inflow cannula mechanical
           injury in a patient with left ventricular assist device: Catheter ablation
           and pathological findings

    • Authors: Stefano Pedretti; Manlio Cipriani, Edgardo Bonacina, Sara Vargiu, Vered Gil Ad, Maria Frigerio, Maurizio Lunati
      Abstract: In patients with left ventricular assist device (LVAD), a minority of post-operative ventricular tachycardias (VTs) is caused by contact between the inflow cannula and the endocardium. Currently, electrophysiologic characteristics and pathologic features of this condition are lacking. We report on a case of a successfully ablated mechanical VT. After VT recurrence, heart transplantation took place. Pathologic observations were consistent with direct tissue injury and inflammation, eventually contributing to persisting arrhythmias.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-05-11
      DOI: 10.1016/j.joa.2017.04.007
  • Use of implantable and external loop recorders in syncope with unknown

    • Authors: Kaoru Tanno
      Abstract: The gold standard for diagnosing syncope is to elucidate the symptom-electrocardiogram (ECG) correlation. The ECG recordings during syncope allow physicians to either confirm or exclude an arrhythmia as the mechanism of syncope. Many studies have investigated the use of internal loop recorder (ILR), while few studies have used external loop recorder (ELR) for patients with unexplained syncope. The aim of this review is to clarify the clinical usefulness of ILR and ELR in the diagnosis and management of patients with unexplained syncope.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-05-11
      DOI: 10.1016/j.joa.2017.03.006
  • Life-threatening arrhythmias leading to syncope in patients with
           vasospastic angina

    • Authors: Mitsuhiro Nishizaki
      Abstract: The coronary artery diseases (CAD) that can lead to the occurrence of a syncopal attack include acute coronary syndrome, vasospastic angina, effort angina, and prior myocardial infarction. The possible mechanisms considered to lead to syncope in patients with CAD are pump failure, tachyarrhythmia, bradycardia, and vagal stimulation. Coronary artery spasm, in particular, is occasionally observed in patients with unexplained syncope in Japan. Life-threatening arrhythmias are among the most serious complications of an ischemic attack caused by coronary spasm, and are associated with an increased risk of syncope and/or sudden cardiac death (SCD).
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-05-10
      DOI: 10.1016/j.joa.2017.04.006
  • Syncope and paroxysmal atrioventricular block

    • Authors: Milena Aste; Michele Brignole
      Abstract: Current literature reveals three types of paroxysmal atrioventricular block (AVB) that can cause syncope:Intrinsic paroxysmal atrioventricular block is due to an intrinsic disease of the AV conduction system; this type of “cardiac syncope” is also called Stokes-Adams attack;Extrinsic vagal paroxysmal atrioventricular block is linked to the effect of the parasympathetic nervous system on cardiac conduction and is one of the mechanisms involved in “reflex syncope.”Extrinsic idiopathic paroxysmal atrioventricular block is associated with low levels of endogenous adenosine and is supposed to be one of the mechanisms involved in “low-adenosine syncope.”These three types of paroxysmal AVB present different clinical and electrocardiographic features.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-05-08
      DOI: 10.1016/j.joa.2017.03.008
  • Clinical benefits of deep sedation with a supraglottic airway while
           monitoring the bispectral index during catheter ablation of atrial

    • Authors: Satoru Hida; Masao Takemoto, Akihiro Masumoto, Takahiro Mito, Kazuhiro Nagaoka, Hiroshi Kumeda, Yuki Kawano, Ryota Aoki, Honsa Kang, Atsushi Tanaka, Atsutoshi Matsuo, Kiyoshi Hironaga, Teiji Okazaki, Kiyonobu Yoshitake, Kei-ichiro Tayama, Ken-ichi Kosuga
      Abstract: Pulmonary vein antrum isolation (PVAI) under sedation has proven to be a useful strategy for catheter ablation of atrial fibrillation (AF).
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-05-08
      DOI: 10.1016/j.joa.2017.04.001
  • Criteria for short QT interval based on a new QT-heart rate adjustment

    • Authors: Simon W. Rabkin
      Abstract: A short QT interval, within which an increased risk for atrial fibrillation and/or fatal cardiac arrhythmias occurs, has been difficult to define.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-05-06
      DOI: 10.1016/j.joa.2017.04.004
  • Subacute pneumothorax contralateral to the venous access site associated
           with atrial lead perforation in a patient who was receiving corticosteroid

    • Authors: Naruya Ishizue; Jun Kishihara, Shinichi Niwano, Junya Ako
      Abstract: Pneumothorax contralateral to the venous access site due to the right atrial lead is an uncommon complication. Concomitant steroid use is known as a risk factor of pacemaker lead perforation. We report a rare case of subacute contralateral pneumothorax due to a screw-in atrial lead perforation that occurred after dual-chamber pacemaker implantation in a patient who was receiving steroid therapy. The pneumothorax disappeared, and no recurrence was observed during follow-up with close observation alone.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-05-04
      DOI: 10.1016/j.joa.2017.03.003
  • Impact of baseline renal function on all-cause mortality in patients who
           underwent cardiac resynchronization therapy: A systematic review and

    • Authors: G. Bazoukis; K.P. Letsas, P. Korantzopoulos, C. Thomopoulos, K. Vlachos, S. Georgopoulos, N. Karamichalakis, A. Saplaouras, M. Efremidis, A. Sideris
      Abstract: Cardiac resynchronization therapy (CRT) improves both morbidity and mortality in selected patients with heart failure and increased QRS duration. However, chronic kidney disease (CKD) may have an adverse effect on patient outcome. The aim of this systematic review was to analyze the existing data regarding the impact of baseline renal function on all-cause mortality in patients who underwent CRT.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-05-01
      DOI: 10.1016/j.joa.2017.04.005
  • Adaptive cardiac resynchronization therapy for dilated cardiomyopathy with
           functional mitral regurgitation

    • Authors: Yoshiki Nagata; Yoichiro Nakagawa, Yusuke Takeda, Kenji Emoto, Masaki Kinoshita, Akio Chikata, Michiro Maruyama, Kazuo Usuda
      Abstract: We report the case of a man in his 60s who had dilated cardiomyopathy with severe functional mitral regurgitation. Four years after a cardiac resynchronization therapy (CRT) device with an implantable cardioverter defibrillator was implanted, this device was replaced with an adaptive CRT device because of battery consumption. Seven months after replacement of this device, the left ventricular pacing to right ventricular activation and the atrioventricular delay from automatic adjustments contributed to less functional mitral regurgitation.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-04-29
      DOI: 10.1016/j.joa.2017.04.003
  • Simple and effective solution for diaphragm pacing by that uses the
           transvenous femoral approach in a patient treated with cardiac
           resynchronization-defibrillator therapy: The wrapping method

    • Authors: Ahmet Taha Alper; Mert İlker Hayıroğlu, Ahmet İlker Tekkeşin, Ceyhan Türkkan
      Abstract: The use of cardiac resynchronization therapy (CRT) has become widespread in patients with heart failure who meet the criteria for implantation. Coronary sinus lead positioning is important to provide the intended biventricular stimulation. Diaphragm pacing is a lead-related complication which occurs secondary to phrenic nerve stimulation. We present the case of a 58-year-old male patient who had diaphragm pacing after CRT with defibrillator implantation. The complication was resolved by using the transvenous femoral approach with the wrapping method.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-04-29
      DOI: 10.1016/j.joa.2017.03.004
  • Elongated ascending aorta predicts a short distance between his-bundle
           potential recording site and coronary sinus ostium

    • Authors: Yuichi Momose; Kyoko Soejima, Akiko Ueda, Takahiro Arai, Masamichi Koyanagi, Yo Hagiwara, Ikuko Togashi, Yosuke Miwa, Kyoko Hoshida, Mutsumi Miyakoshi, Noriko Matsushita, Mika Nagaoka, Toshiaki Sato, Toshiaki Nitatori, Hideaki Yoshino
      Abstract: When performing catheter ablation of atrioventricular nodal reentrant tachycardia (AVNRT), it can be difficult to maintain a safe distance from the His recording site to avoid AV block in patients with a short distance between this recording site to the coronary sinus (CS) ostium (small triangle of Koch [TOK]). In this study, we sought to identify parameters predicting small TOK and test these parameters in patients undergoing AVNRT catheter ablation.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-04-26
      DOI: 10.1016/j.joa.2017.04.002
  • Vagal response in cryoballoon ablation of atrial fibrillation and
           autonomic nervous system: Utility of epicardial adipose tissue location

    • Authors: Satoshi Yanagisawa; Yasuya Inden, Yoshiaki Mizutani, Aya Fujii, Yosuke Kamikubo, Yasunori Kanzaki, Monami Ando, Junya Funabiki, Yosuke Murase, Masaki Takenaka, Noriaki Otake, Tetsuyoshi Hattori, Rei Shibata, Toyoaki Murohara
      Abstract: Mechanism and effects of vagal response (VR) during cryoballoon ablation procedure on the cardiac autonomic nervous system (ANS) are unclear. The present study aimed to evaluate the relationship between VR during cryoballoon catheter ablation for atrial fibrillation and ANS modulation by evaluating epicardial adipose tissue (EAT) locations and heart rate variability (HRV) analysis.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-04-24
      DOI: 10.1016/j.joa.2017.03.001
  • Cardiac resynchronization therapy in ischemic and non-ischemic

    • Authors: Hisashi Yokoshiki; Hirofumi Mitsuyama, Masaya Watanabe, Takeshi Mitsuhashi, Akihiko Shimizu
      Abstract: Cardiac resynchronization therapy (CRT) using a biventricular pacing system has been an effective therapeutic strategy in patients with symptomatic heart failure with a reduced left ventricular ejection fraction (LVEF) of 35% or less and a QRS duration of 130ms or more. The etiology of heart failure can be classified as either ischemic or non-ischemic cardiomyopathy. Ischemic etiology of patients receiving CRT is prevalent predominantly in North America, moderately in Europe, and less so in Japan.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-04-21
      DOI: 10.1016/j.joa.2017.03.002
  • Initial experience with the subcutaneous implantable
           cardioverter-defibrillator in a single Japanese center

    • Authors: Nobuhiro Nishii; Motomi Tachibana, Yoshimasa Morimoto, Satoshi Kawada, Akihito Miyoshi, Hiroyasu Sugiyama, Koji Nakagawa, Atsuyuki Watanabe, Kazufumi Nakamura, Hiroshi Morita, Hiroshi Ito
      Abstract: The subcutaneous implantable cardioverter-defibrillator (S-ICD) is recognized as a viable alternative to the transvenous ICD. The safety and efficacy of this device has been demonstrated in Western countries, but studies with S-ICD implantation in Japanese patients have not been reported.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-03-31
      DOI: 10.1016/j.joa.2017.02.004
  • Driving restrictions in patients with implantable cardioverter
           defibrillators and pacemakers

    • Authors: Eiichi Watanabe; Haruhiko Abe, Shigeyuki Watanabe
      Abstract: Implantable cardioverter-defibrillators (ICDs) improve the survival in patients at risk of sudden cardiac death. However, these patients have an ongoing risk of sudden incapacitation that may cause harm to individuals and others when driving. Considerable disagreement exists about whether and when these patients should be allowed to resume driving after ICD therapies. This information is critical for the management decisions to avoid future potentially lethal incidents and unnecessary restrictions for ICD patients.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-03-28
      DOI: 10.1016/j.joa.2017.02.003
  • Adenosine-guided radiofrequency catheter ablation of atrial fibrillation:
           A meta-analysis of randomized control trials

    • Authors: Konstantinos P. Letsas; Stamatis Georgopoulos, Michael Efremidis, Tong Liu, George Bazoukis, Konstantinos Vlachos, Nikolaos Karamichalakis, Louiza Lioni, Antonios Sideris, Joachim R. Ehrlich
      Abstract: The prognostic significance of adenosine-mediated dormant pulmonary vein conduction, and whether such dormant conduction should be eliminated, remains controversial. We sought to perform a meta-analysis of data from eligible studies to delineate the prognostic impact of adenosine-guided radiofrequency catheter ablation of atrial fibrillation.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-03-28
      DOI: 10.1016/j.joa.2017.02.002
  • Study design of GENERAL (general practitioners and embolism prevention in
           NVAF patients treated with rivaroxaban: Real-life evidence): A multicenter
           prospective cohort study in primary care physicians to investigate the
           effectiveness and safety of rivaroxaban in Japanese patients with NVAF

    • Authors: Kengo Kusano; Masaharu Akao, Hikari Tsuji, Kunihiko Matsui, Shinya Hiramitsu, Yutaka Hatori, Hironori Odakura
      Abstract: Rivaroxaban, a direct oral anticoagulant (DOAC), has become available for stroke prevention in patients with non-valular atrial fibrillation (NVAF). However, little is known about its effectiveness and safety when prescribed by general practitioners in real-life settings.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-03-08
      DOI: 10.1016/j.joa.2016.12.001
  • The tachycardia that outsmarted the SMART

    • Authors: David Foo; Pow-Li Chia, Andreas Kucher
      Abstract: A 57-year-old man presented with palpitations and shock delivery from his implantable cardioverter-defibrillator (ICD). He had a history of ischemic cardiomyopathy with an ejection fraction of 20%. One month prior to this presentation, he received a DX ICD (Iforia 5 VR-T DX, Biotronik SE & Co. KG) for primary prevention of sudden cardiac death. Two ventricular tachycardia (VT) zones (VT1 162–188 bpm; VT2 188–222 bpm) were programmed in addition to a ventricular fibrillation (VF) zone (>222 bpm).
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-02-28
      DOI: 10.1016/j.joa.2017.02.001
  • Airway support using a pediatric intubation tube in adult patients with
           atrial fibrillation: A simple and unique method to prevent heart movement
           during catheter ablation under continuous deep sedation

    • Authors: Masateru Takigawa; Atsushi Takahashi, Taishi Kuwahara, Kenji Okubo, Emiko Nakashima, Yuji Watari, Kazuya Yamao, Jun Nakajima, Yasuaki Tanaka, Katsumasa Takagi, Shigeki Kimura, Hiroyuki Hikita, Kenzo Hirao, Mitsuaki Isobe
      Abstract: The present study aimed to elucidate the safety and effectiveness of a noble and unique airway management technique in which a pediatric intubation tube is used in adult patients with atrial fibrillation (AF) undergoing catheter ablation (CA) under continuous deep sedation.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-02-18
      DOI: 10.1016/j.joa.2017.01.003
  • Asystole in focal epilepsy complicating a traumatic subdural hematoma

    • Authors: Yuk-Ming Lau; Chi-Hung Lo, Kathy Lai-Fun Lee, Chu-Pak Lau
      Abstract: Ictal asystole due to sinus node suppression is a cause of sudden unexplained death in epilepsy. Here, for the first time, we describe a complete atrioventricular nodal block in a patient with non-compressive traumatic subdural hematoma, who developed ictal asystole as a delayed presentation. A leadless VVI pacemaker (ventricular paced, ventricular sensed, and pacing inhibited in response to a sensed beat) was implanted as a preventive measure against seizure-related heart block.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-02-16
      DOI: 10.1016/j.joa.2017.01.004
  • Wavefront direction and cycle length affect left atrial electrogram

    • Authors: Kazuki Iso; Ichiro Watanabe, Rikitake Kogawa, Yasuo Okumura, Koichi Nagashima, Keiko Takahashi, Ryuta Watanabe, Masaru Arai, Kimie Ohkubo, Toshiko Nakai, Atsushi Hirayama, Mizuki Nikaido
      Abstract: The relationship between atrial electrogram (EGM) characteristics in atrial fibrillation (AF) and those in sinus rhythm (SR) are generally unknown. The activation rate and direction may affect EGM characteristics. We examined characteristics of left atrial (LA) EGMs obtained during pacing from different sites.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-02-13
      DOI: 10.1016/j.joa.2017.01.001
  • Feasibility, safety, and potential demand of emergent brain magnetic

    • Authors: Maki Ono; Makoto Suzuki, Mitsuaki Isobe
      Abstract: The feasibility, safety, and potential demand of emergent magnetic resonance imaging (MRI) of patients with a cardiac implantable electronic device (CIED) in emergency situations are unknown.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-02-10
      DOI: 10.1016/j.joa.2017.01.002
  • Intracoronary acetylcholine application as a possible probe inducing J
           waves in patients with early repolarization syndrome

    • Authors: Toru Maruyama; Kazumasa Fujita, Kei Irie, Shouhei Moriyama, Mitsuhiro Fukata
      Abstract: Acetylcholine is widely used for a diagnostic provocation test of coronary spasm in patients with vasospastic angina. Acetylcholine usually induces coronary vasodilatation mediated by muscarinic receptor activation, but sometimes it evokes vasoconstriction of coronary arteries where the endothelium is damaged. Early repolarization syndrome is characterized by a J wave observed at the end of the QRS complex in a surface electrocardiogram. The J wave is attributed to the transmural voltage gradient at the early repolarization phase across the ventricular wall, which stems mainly from prominent transient outward current in the epicardium, but not in the endocardium.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-02-06
      DOI: 10.1016/j.joa.2016.12.005
  • High-resolution mapping and ablation of recurrent left lateral accessory
           pathway conduction

    • Authors: Francesco Solimene; Vincenzo Schillaci, Gergana Shopova, Francesco Maddaluno, Maurizio Malacrida, Giuseppe Stabile
      Abstract: Proper localization of the anatomical target during ablation of the accessory pathways (AP) and the ability to detect clear AP potentials on the ablation catheter are crucial for successful AP ablation. We report a case of recurring AP conduction that was finally eliminated using a novel ablation catheter equipped with high-resolution mini-electrodes. Smaller and closer electrodes result in high mapping resolution with less signal averaging and cancellation effects. Owing to improved sensitivity, the new catheter seems effective in detecting fragmented and high frequency signals, thus allowing more effective radiofrequency application and improving ablation success.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-02-04
      DOI: 10.1016/j.joa.2016.12.003
  • Simulation of ventricular rate control during atrial fibrillation using
           ionic channel blockers

    • Authors: Shin Inada; Nitaro Shibata, MD, PhD, Michiaki Iwata, PhD, Ryo Haraguchi, PhD, Takashi Ashihara MD, PhD, Takanori Ikeda, MD, PhD, Kazuyuki Mitsui, PhD, Halina Dobrzynski, PhD, Mark R. Boyett, PhD, Kazuo Nakazawa, PhD
      Abstract: The atrioventricular (AV) node is the only compartment that conducts an electrical impulse between the atria and the ventricles. The main role of the AV node is to facilitate efficient pumping by conducting excitation slowly between the two chambers as well as reduce the ventricular rate during atrial fibrillation (AF).
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-01-23
      DOI: 10.1016/j.joa.2016.12.002
  • Current use of direct oral anticoagulants for atrial fibrillation in
           Japan: Findings from the SAKURA AF Registry

    • Authors: Yasuo Okumura; Katsuaki Yokoyama, Naoya Matsumoto, Eizo Tachibana, Keiichiro Kuronuma, Koji Oiwa, Michiaki Matsumoto, Toshiaki Kojima, Shoji Hanada, Kazumiki Nomoto, Ken Arima, Fumiyuki Takahashi, Tomobumi Kotani, Yukitoshi Ikeya, Seiji Fukushima, Satoru Itoh, Kunio Kondo, Masaaki Chiku, Yasumi Ohno, Motoyuki Onikura, Atsushi Hirayama, the SAKURA AF Registry Investigators
      Abstract: Large-scale investigations on the use of oral anticoagulants including direct oral anticoagulants (DOACs) in patients with atrial fibrillation (AF) have not included Japanese patients.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-01-03
      DOI: 10.1016/j.joa.2016.11.003
  • Focal ablation for atrial tachycardia from the double-exit of the Marshall
           bundle inducing atrial fibrillation

    • Authors: Jung Yeon Chin; Jong Woo Kim, Ki-Woon Kang
      Abstract: Atrial fibrillation (AF) from the ligament/vein of Marshall (LOM/VOM) has previously been described. We report the case of a 23-year-old woman with an antiarrhythmic drug-resistant AF induced by two distinct atrial tachycardias (ATs). Focal ablation of these ATs from the double-exit of the Marshall bundle using a three-dimensional map eliminated AF triggering, even though pulmonary vein electrical isolation is the cornerstone for paroxysmal AF. Such mechanisms are important as triggering factors to plan ablation for paroxysmal AF.
      Citation: Journal of Arrhythmia (2017)
      PubDate: 2017-01-03
      DOI: 10.1016/j.joa.2016.11.002
  • 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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