Editorial to the Postmarketing surveillance on the clinical use of edoxaban in patients with nonvalvular atrial fibrillation (ETNA‐AF Japan): One‐year safety and effectiveness anal...

by Koichi Nagashima, Yasuo Okumura
Published 2020-06-01

Editorial to the “safety and efficacy of direct oral anticoagulants compared to vitamin K antagonist post percutaneous coronary artery interventions in patients with atrial fibrill...

by Yasuo Okumura, Koichi Nagashima
Published 2020-04-01

Never Out of the Woods: Onset of Events in Long QT Syndrome Late in Life Provoked by Atrial Arrhythmias

by Justin Ng, MD, Chirag Barbhaiya, Tobias Reichlin, Koichi Nagashima, Roy John
Published 2014-09-01

What Are the Expectations for Cardiac Resynchronization Therapy? A Validation of Two Response Definitions

by Toshiko Nakai, Yukitoshi Ikeya, Rikitake Kogawa, Naoto Otsuka, Yuji Wakamatsu, Sayaka Kurokawa, Kimie Ohkubo, Koichi Nagashima, Yasuo Okumura
Published 2021-02-01

Small, smooth, nonmobile cardiac myxoma detected by transesophageal echocardiography following recurrent cerebral infarction: a case report

by Yuki Saito, Yoshihiro Aizawa, Koyuru Monno, Koichi Nagashima, Sayaka Kurokawa, Shunji Osaka, Takayoshi Akimoto, Satoshi Kamei, Masashi Tanaka, Atsushi Hirayama
Published 2017-05-01

Successful catheter ablation of premature ventricular contractions originating from the anterior fascicle of the left bundle branch in a patient with hypertrophic cardiomyopathy

by Kazumasa Sonoda, Yasuo Okumura, Ichiro Watanabe, Koichi Nagashima, Hiroaki Mano, Masayoshi Kofune, Satoshi Kunimoto, Kimie Ohkubo, Toshiko Nakai, Atsushi Hirayama
Published 2013-08-01

Termination of atrial fibrillation by ablation of high-dominant frequency sites adjacent to epicardial adipose tissue

by Koichi Nagashima, Shiro Nakahara, Yasuo Okumura, Hiroaki Mano, Kazumasa Sonoda, Rikitake Kogawa, Naoko Sasaki, Kan Takayanagi, Ichiro Watanabe, Atsushi Hirayama
Published 2013-08-01

A case of typical atrial flutter causing unexpected advanced atrioventricular block despite lateral cavotricuspid isthmus ablation

by Hiroaki Mano, Yasuo Okumura, Ichiro Watanabe, Koichi Nagashima, Toshiko Nakai, Kimie Ohkubo, Tatsuya Kofune, Masayoshi Kofune, Kazumasa Sonoda, Hironori Haruta, Atsushi Hirayama
Published 2012-10-01

Utility of entrainment pacing to clarify the circuit of macroreentrant tachycardia with dual early sites on activation maps

by Koichi Nagashima, MD, PhD, Yasuo Okumura, MD, PhD, Ryuta Watanabe, MD, Masaru Arai, MD, Yuji Wakamatsu, MD, Ichiro Watanabe, MD, PhD
Published 2018-02-01

Efficacy of Cardiac Resynchronization Therapy in Patients with a Narrow QRS Complex

by Toshiko Nakai, Yukitoshi Ikeya, Hiroaki Mano, Rikitake Kogawa, Ryuta Watanabe, Masaru Arai, Yoshihiro Aizawa, Sayaka Kurokawa, Kimie Ohkubo, Daisuke Kitano, Koichi Nagashima, Yasuo Okumura
Published 2021-01-01

Prevalence and significance of the early repolarization pattern in inferolateral leads in patients with Brugada syndrome: A single-center study

by Kimie Ohkubo, Ichiro Watanabe, Yasuo Okumura, Masayoshi Kofune, Koichi Nagashima, Hiroaki Mano, Kazumasa Sonoda, Toshiko Nakai, Yuji Kasamaki, Atsushi Hirayama, Naokata Sumitomo, Tomohiro Nakayama
Published 2012-10-01

Atrial tachycardia in a patient with arrhythmogenic right ventricular cardiomyopathy/dysplasia

by Hiroaki Mano, Ichiro Watanabe, Yasuo Okumura, Kazumasa Sonoda, Koichi Nagashima, Toshiko Nakai, Kimie Ohkubo, Tatsuya Kofune, Hironori Haruta, Masayoshi Kofune, Satoshi Kunimoto, Atsushi Hirayama
Published 2013-08-01

Desmin‐related myopathy characterized by non‐compaction cardiomyopathy, cardiac conduction defect, and coronary artery dissection

by Ran Tamiya, Yuki Saito, Daisuke Fukamachi, Koichi Nagashima, Yoshihiro Aizawa, Kimie Ohkubo, Takumi Hatta, Akira Sezai, Masashi Tanaka, Taisuke Ishikawa, Naomasa Makita, Naokata Sumitomo, Yasuo Okumura
Published 2020-06-01

Scar characteristics derived from two- and three-dimensional reconstructions of cardiac contrast-enhanced magnetic resonance images: Relationship to ventricular tachycardia inducib...

by Kazumasa Sonoda, Yasuo Okumura, Ichiro Watanabe, Koichi Nagashima, Hiroaki Mano, Rikitake Kogawa, Naoko Yamaguchi, Keiko Takahashi, Kazuki Iso, Kimie Ohkubo, Toshiko Nakai, Satoshi Kunimoto, Atsushi Hirayama
Published 2017-10-01

Supraventricular tachyarrhythmia in patients with Brugada syndrome: A single-center study

by Kimie Ohkubo, Ichiro Watanabe, Yasuo Okumura, Masayoshi Kofune, Koichi Nagashima, Hiroaki Mano, Kazumasa Sonoda, Toshiko Nakai, Satoshi Kunimoto, Yuji Kasamaki, Atsushi Hirayama, Naokata Sumitomo, Tomohiro Nakayama
Published 2013-10-01

Effect of epicardial fat and metabolic syndrome on reverse atrial remodeling after ablation for atrial fibrillation

by Koyuru Monno, Yasuo Okumura, Yuki Saito, Yoshihiro Aizawa, Koichi Nagashima, Masaru Arai, Ryuta Watanabe, Yuji Wakamatsu, Naoto Otsuka, Shunichi Yoda, Takafumi Hiro, Ichiro Watanabe, Atsushi Hirayama
Published 2018-12-01

Comprehensive assessment of left atrial and ventricular remodeling in paroxysmal atrial fibrillation by the cardiovascular magnetic resonance myocardial extracellular volume fracti...

by Akimasa Yamada, Naoki Hashimoto, Hidesato Fujito, Takumi Hatta, Yuki Saito, Naoto Otsuka, Yuji Wakamatsu, Masaru Arai, Ryuta Watanabe, Sayaka Kurokawa, Daisuke Kitano, Koichi Nagashima, Shunichi Yoda, Yasuo Okumura
Published 2021-05-01

Resolution of the functional retrograde right bundle branch block during antidromic atrioventricular reciprocating tachycardia

by Keiko Takahashi, MD, PhD, Koichi Nagashima, MD, PhD, Yasuo Okumura, MD, PhD, Ichiro Watanabe, MD, PhD, FHRS, Kazuki Iso, MD, Atsushi Hirayama, MD, PhD
Published 2017-11-01

Influence of balloon temperature and time to pulmonary vein isolation on acute pulmonary vein reconnection and clinical outcomes after cryoballoon ablation of atrial fibrillation

by Ryuta Watanabe, Yasuo Okumura, Koichi Nagashima, Kazuki Iso, Keiko Takahashi, Masaru Arai, Yuji Wakamatsu, Sayaka Kurokawa, Kimie Ohkubo, Toshiko Nakai, Shunichi Yoda, Ichiro Watanabe, Atsushi Hirayama, Kazumasa Sonoda, Toshimasa Tosaka
Published 2018-10-01

Spatial and temporal variability of the complex fractionated atrial electrogram activity and dominant frequency in human atrial fibrillation

by Rikitake Kogawa, MD, Yasuo Okumura, MD, Ichiro Watanabe, MD, Masayoshi Kofune, MD, Koichi Nagashima, MD, Hiroaki Mano, MD, Kazumasa Sonoda, MD, Naoko Sasaki, MD, Kimie Ohkubo, MD, Toshiko Nakai, MD, Atsushi Hirayama, MD
Published 2015-04-01