Current status of atrial pacing algorithms for the prevention of atrial fibrillation: Should algorithms be used?

by Toshiko Nakai, MD, Ichiro Watanabe, MD, Atsushi Hirayama, MD
Published 2014-04-01

Embolic Stroke Caused by Aortic Ruptured Plaque and Thrombus Visualized by Angioscopy

by Yoshiharu Higuchi, MD, Atsushi Hirayama, MD, Sei Komatsu, MD, Kazuhisa Kodama, MD
Published 2020-05-01

A rare variant of pulmonary vein drainage

by Keiko Takahashi, MD, Yasuo Okumura, MD, Ichiro Watanabe, MD, FHRS, Atsushi Hirayama, MD
Published 2015-03-01

Risk of defibrillation threshold testing in severe heart failure patient: A case of cardiac resynchronization therapy (CRT-D) with acute myocardial infarction

by Toshiko Nakai, MD, Kimie Ohkubo, MD, Yasuo Okumura, MD, Satoshi Kunimoto, MD, Yuji Kasamaki, MD, Ichiro Watanabe, MD, Atsushi Hirayama, MD
Published 2012-04-01

Shortening of intraventricular conduction time with rapid ventricular pacing

by Naoko Sasaki, MD, Ichiro Watanabe, MD, Yasuo Okumura, MD, Kazumasa Sonoda, MD, Rikitake Kogawa, MD, Keiko Takahashi, MD, Kimie Ohkubo, MD, Toshiko Nakai, MD, Atsushi Hirayama, MD
Published 2014-10-01

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

Analysis of the spatial and transmural dispersion of repolarization and late potentials derived using signal-averaged vector-projected 187-channel high-resolution electrocardiogram...

by Kimie Ohkubo, MD, Ichiro Watanabe, MD, Yasuo Okumura, MD, Kazumasa Sonoda, MD, Naoko Sasaki, MD, Rikitake Kogawa, MD, Keiko Takahashi, MD, Toshiko Nakai, MD, Satoshi Kunimoto, MD, Yuji Kasamaki, MD, Atsushi Hirayama, MD
Published 2014-12-01

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

Spatial and transmural repolarization, and dispersion of repolarization and late potentials evaluated using signal-averaged vector-projected 187-channel high-resolution electrocard...

by Kimie Ohkubo, MD, Ichiro Watanabe, MD, Yasuo Okumura, MD, Masayoshi Kofune, MD, Koichi Nagashima, MD, Hiroaki Mano, MD, Kazumasa Sonoda, MD, Toshiko Nakai, MD, Yuji Kasamaki, MD, Atsushi Hirayama, MD, Naokata Sumitomo, MD, Tomohiro Nakayama, MD
Published 2014-12-01

Monophasic action potential duration alternans after abrupt shortening of the cardiac cycle in humans

by Kazumasa Sonoda, MD, Ichiro Watanabe, MD, Yasuo Okumura, MD, Naoko Sasaki, MD, Rikitake Kogawa, MD, Keiko Takahashi, MD, Hiroaki Mano, MD, Masayoshi Kofune, MD, Kimie Ohkubo, MD, Toshiko Nakai, MD, Satoshi Kunimoto, MD, Atsushi Hirayama, MD
Published 2014-06-01

Wavefront direction and cycle length affect left atrial electrogram amplitude

by Kazuki Iso, MD, Ichiro Watanabe, MD, Rikitake Kogawa, MD, Yasuo Okumura, MD, Koichi Nagashima, MD, Keiko Takahashi, MD, Ryuta Watanabe, MD, Masaru Arai, MD, Kimie Ohkubo, MD, Toshiko Nakai, MD, Atsushi Hirayama, MD, Mizuki Nikaido, MD
Published 2017-08-01

A case of cardiac sarcoidosis presenting with double tachycardia

by Keiko Takahashi, MD, Yasuo Okumura, MD, Ichiro Watanabe, MD, Koichi Nagashima, MD, Hiroaki Mano, MD, Kazumasa Sonoda, MD, Rikitake Kogawa, MD, Naoko Sasaki, MD, Kazuki Iso, MD, Kimie Okubo, MD, Toshiko Nakai, MD, Atsushi Hirayama, MD
Published 2015-02-01

Effect of adenosine triphosphate on left atrial electrogram interval 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, Kazuki Iso, MD, Keiko Takahashi, Kimie Ohkubo, MD, Toshiko Nakai, MD, Atsushi Hirayama, MD
Published 2015-12-01

Usefulness of filtered unipolar electrogram morphology for evaluating transmurality of ablated lesions during pulmonary vein isolation

by Rikitake Kogawa, MD, Ichiro Watanabe, MD, Yasuo Okumura, MD, Hiroaki Mano, MD, Kazumasa Sonoda, MD, Koichi Nagashima, MD, Naoko Sasaki, MD, Kimie Ohkubo, MD, Keiko Takahashi, MD, Kazuki Iso, MD, Sayaka Kurokawa, MD, Toshiko Nakai, MD, Atsushi Hirayama, MD
Published 2016-04-01

Brugada syndrome in the presence of coronary artery disease

by Kimie Ohkubo, MD, Ichiro Watanabe, MD, Yasuo Okumura, MD, Masayoshi Kofune, MD, Koichi Nagashima, MD, Hiroaki Mano, MD, Kazumasa Sonoda, MD, Rikitake Kogawa, MD, Naoko Sasaki, MD, Toshiko Nakai, MD, Satoshi Kunimoto, MD, Yuji Kasamaki, MD, Atsushi Hirayama, MD
Published 2013-08-01

Effects of a high-fat diet on the electrical properties of porcine atria

by Yasuo Okumura, MD, Ichiro Watanabe, MD, Koichi Nagashima, MD, Kazumasa Sonoda, MD, Naoko Sasaki, MD, Rikitake Kogawa, MD, Keiko Takahashi, MD, Kazuki Iso, MD, Kimie Ohkubo, MD, Toshiko Nakai, MD, Rie Takahashi, Yoshiki Taniguchi, Masako Mitsumata, MD, Mizuki Nikaido, BE, Atsushi Hirayama, MD
Published 2015-12-01

Left atrial remodeling: Regional differences between paroxysmal and persistent atrial fibrillation

by Rikitake Kogawa, MD, Yasuo Okumura, MD, Ichiro Watanabe, MD, Koichi Nagashima, MD, Keiko Takahashi, MD, Kazuki Iso, MD, Ryuta Watanabe, MD, Masaru Arai, MD, Sayaka Kurokawa, MD, Kimie Ohkubo, MD, Toshiko Nakai, MD, Atsushi Hirayama, MD, Kazumasa Sonoda, MD, Toshimasa Tosaka, MD
Published 2017-10-01

Brain magnetic resonance imaging examination in a patient with non-magnetic resonance conditional pacemaker

by Toshiko Nakai, MD, Toshiaki Sato, MD, Kyoko Soejima, MD, Yusuke Takamine, MD, Mitsuru Watanabe, MD, Kazutaka Kobayashi, MD, Hideki Oshima, MD, Chikashi Fukaya, MD, Yasuo Okumura, MD, Kimie Ohkubo, MD, Satoshi Kunimoto, MD, Ichiro Watanabe, MD, Atsuo Yoshino, MD, Atsushi Hirayama, MD
Published 2017-10-01

Complex fractionated atrial electrograms, high dominant frequency regions, and left atrial voltages during sinus rhythm and atrial fibrillation

by Naoko Sasaki, MD, Ichiro Watanabe, MD, Yasuo Okumura, MD, Koichi Nagashima, MD, Rikitake Kogawa, MD, Kazumasa Sonoda, MD, Kazuki Iso, MD, Keiko Takahashi, MD, Masaru Arai, MD, Ryuta Watanabe, MD, Sayaka Kurokawa, MD, Kimie Ohkubo, MD, Toshiko Nakai, MD, Atsushi Hirayama, MD, Mizuki Nikaido, BS
Published 2017-06-01

Long-term Prognosis for Non-ischemic Heart Disease Patients with Premature Ventricular Contraction and Non-sustained Ventricular Tachycardia

by Masakazu Komoriya, MD, Shinobu Imai, MD, Hiroshi Aoyama, MD, Hideki Yagi, MD, Masaaki Nagashima, MD, Mitsunobu Enomoto, MD, Kazutaka Suzuki, MD, Satoshi Yamaji, MD, Hidehito Takase, MD, Kagari Matsudaira, MD, Naoyuki Takahashi, MD, Fumio Saito, MD, Hiroshi Yagi, MD, Toshio Kushiro, MD, Ken Nagao, MD, Atsushi Hirayama, MD
Published 2008-01-01