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Masahiro Mutoh

Nagoya University

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Featured researches published by Masahiro Mutoh.

Europace | 2010

Morphological characteristics of the Holter P-waves associated with pulmonary vein pacing.

Shuji Harata; Yasuya Inden; Masayuki Shimano; Tomohiro Uchikawa; Masahiro Mutoh; Makoto Hirai; Toyoaki Murohara

AIMS Identification of arrhythmogenic pulmonary veins (PVs) initiating atrial fibrillation is helpful for catheter ablation. The aim of this study was to examine the possibility to recognize the arrhythmogenic PV using Holter ECG. METHODS AND RESULTS In 20 patients, P-wave characteristics were studied during pacing from four PVs. Holter ECG was recorded using two leads: the modified CC5 (Lead 1) and NASA (Lead 2), and the P-wave amplitude and duration were evaluated. In Lead 1, P-waves produced by left PV pacing were significantly lower in amplitude than right PV pacing (-3 +/- 75 vs. 86 +/- 43 microV, P < 0.001). In Lead 2, pacing in superior PVs produced P-waves with higher amplitude than inferior PVs (210 +/- 74 vs. 125 +/- 66 muV, P < 0.001). The criteria proposed by the morphological characteristics of P-waves identified putative arrhythmogenic PVs with an accuracy of 78%. CONCLUSION It might be possible to identify putative arrhythmogenic PVs by modified Holter ECG recording.

Canadian Journal of Cardiology | 2004

Diagnostic usefulness of postexercise systolic blood pressure response for detection of coronary artery disease in patients with echocardiographic left ventricular hypertrophy.

Kiyoyasu Yamada; Makoto Hirai; Kazunari Abe; Hitoshi Ishihara; Kyosuke Takeshita; Yasunobu Takada; Masahiro Mutoh; Hironori Noda; Atsuya Shimizu; Yoshihisa Shibata; Takumi Yamada; Takahisa Kondo; Yukihiko Yoshida; Yasuya Inden; Toyoaki Murohara

Japanese Circulation Journal-english Edition | 2006

OJ-374 Pulmonary Vein Isolation Improves the Conduction Delay of Atria in Patients with Paroxysmal Atrial Fibrillation(ECG/Body surface potential mapping/Holter-3 (A) OJ63,Oral Presentation (Japanese),The 70th Anniversary Annual Scientific Meeting of the Japanese Circulation Society)

Yasunobu Takada; Masayuki Shimano; Shuji Harada; Katsumasa Takagi; Masaki Yamauchi; Yukiomi Tsuji; Masahiro Mutoh; Naoki Ohashi; Takahisa Kondo; Yasuya Inden; Makoto Hirai; Toyoaki Murohara

Japanese Circulation Journal-english Edition | 2003

Radiofrequency Catheter Ablation Can Improve Left Atrial Systolic Function in Patients with Paroxysmal Atrial Fibrillation : Assessment by Electron Beam Tomography

Taro Okada; Shoji Yamakami; Makoto Kondou; Kosuke Watanabe; Masahiro Mutoh; Takumi Yamada; Tomomitsu Tani; Kazuki Iwata; Yoshimasa Murakami; Toyoaki Matsushita; Mitsuhiro Okamoto; Junji Toyama; Mikito Takefuji; Yukihiko Yoshida; Naoya Tsuboi; Teruo Itoh; Yasuya Inden; Takahisa Kondoh; Toyoaki Murohara

Japanese Circulation Journal-english Edition | 2008

PJ-284 Behavior of Atrial Premature Beats Triggering the Recurrences of Atrial Fibrillation After Pulmonary Vein Isolation(ECG/Body surface potential mapping/Holter(05)(A),Poster Session(Japanese),The 72nd Annual Scientific Meeting of the Japanese Circulation Society)

Naoki Yoshida; Yoshimasa Murakami; Takumi Yamada; Taro Okada; Kentaro Yamashita; Toru Asai; Takeshi Shimizu; Junji Toyama; Yukihiko Yoshida; Naoya Tsuboi; Masahiro Mutoh; Yasuya Inden; Makoto Hirai; Toyoaki Murohara

Japanese Circulation Journal-english Edition | 2006

PJ-614 Characteristics of Myocardial Fibers and Network of Superior Vena Cava in Paroxysmal Atrial Fibrillation(Arrhythmia, diagnosis/pathophysiology/EPS-14 (A) PJ103,Poster Session (Japanese),The 70th Anniversary Annual Scientific Meeting of the Japanese Circulation Society)

Yuichi Ninomiya; Takumi Yamada; Yoshimasa Murakami; Masahiro Mutoh; Taro Okada; Naoki Yoshida; Mitsuhiro Okamoto; Takeshi Shimizu; Junji Toyama; Yukihiko Yoshida; Naoya Tsuboi; Teruo Itoh; Yasuya Inden; Makoto Hirai; Toyoaki Murohara

Japanese Circulation Journal-english Edition | 2008

PJ-784 The Greater Efficacy of Extensive Encircling Pulmonary Vein Isolation for Persistent Atrial Fibrillation Than Individual Pulmonary Vein Antrum Isolation(Arrhythmia, therapy(17)(A),Poster Session(Japanese),The 72nd Annual Scientific Meeting of the Japanese Circulation Society)

Naoki Yoshida; Yoshimasa Murakami; Takumi Yamada; Taro Okada; Kentaro Yamashita; Toru Asai; Takeshi Shimizu; Junji Toyama; Yukihiko Yoshida; Naoya Tsuboi; Masahiro Mutoh; Yasuya Inden; Makoto Hirai; Toyoaki Murohara

Japanese Circulation Journal-english Edition | 2008

PJ-599 Efficacy of Pulmonary Vein Isolation in Patients with Bradycardia-Tachycardia Syndrome(Arrhythmia, therapy(16)(A),Poster Session(Japanese),The 72nd Annual Scientific Meeting of the Japanese Circulation Society)

Naoki Yoshida; Yoshimasa Murakami; Takumi Yamada; Taro Okada; Kentaro Yamashita; Toru Asai; Takeshi Shimizu; Junji Toyama; Yukihiko Yoshida; Naoya Tsuboi; Masahiro Mutoh; Yasuya Inden; Makoto Hirai; Toyoaki Murohara

Japanese Circulation Journal-english Edition | 2008

PJ-830 The Efficacy and Safety of the Alteration into Clopidgrel in Patients who Discontinued Ticlopidine due its Side Effects(Coronary revascularization, PCI(27)(IHD),Poster Session(Japanese),The 72nd Annual Scientific Meeting of the Japanese Circulation Society)

Masahiro Mutoh; Kohei Sawasaki; Koji Okada; Tsuyoshi Sugiyama; Masahiro Ohya; Chiei Takanaka

Japanese Circulation Journal-english Edition | 2008

PJ-394 Sleep Apnea Syndrome May Play a Role in the Higher Incidence of Non-Pulmonary Vein Ectopic Beats Initiating Atrial Fibrillation(Arrhythmia, diagnosis/Pathophysiology/EPS(14)(A),Poster Session(Japanese),The 72nd Annual Scientific Meeting of the Japanese Circulation Society)

Naoki Yoshida; Yoshimasa Murakami; Takumi Yamada; Taro Okada; Kentaro Yamashita; Toru Asai; Takeshi Shimizu; Junji Toyama; Yukihiko Yoshida; Naoya Tsuboi; Masahiro Mutoh; Yasuya Inden; Makoto Hirai; Toyoaki Murohara

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Yasuya Inden

Nagoya University

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Makoto Hirai

Nagoya University

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Toyoaki Murohara

Nagoya University

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Takumi Yamada

University of Alabama at Birmingham

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Yoshimasa Murakami

Nagoya University

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Junji Toyama

Nagoya University

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Takahisa Kondo

Nagoya University

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Mitsuhiro Okamoto

Nagoya University

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Taro Okada

Nagoya University

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Yukihiko Yoshida

Nagoya University

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