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Author Hitoshi Mori

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Can artificial intelligence predict the need for oxygen therapy in early stage COVID-19 pneumonia?

Hirofumi Obinata, Peiying Ruan, Hitoshi Mori, Wentao Zhu, Hisashi Sasaki, Kodama Tatsuya, Murakami Wakana, Masumi Tanaka, Pin-Lun Hsu, Dong Yang, Ziyue Xu, Daguang Xu, Kaku Tamura, Shoji Yokobori,

Abstract This study investigated the utility of artificial intelligence in predicting disease progression. We analysed 194 patients with COVID-19 confirmed by reverse transcription polymerase chain reaction. Among them, 31 patients had oxygen therapy administered after admission. To assess the utility of artificial intelligence in the prediction of disease progression, we ... Read more >>

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Differential Atrial Pacing to Detect Reconnection Gaps After Pulmonary Vein Isolation in Atrial Fibrillation.

Mai Tahara, Ritsushi Kato, Yoshifumi Ikeda, Koji Goto, So Asano, Hitoshi Mori, Shiro Iwanaga, Toshihiro Muramatsu, Kazuo Matsumoto,

High-resolution mapping is useful to identify reconnection gaps in the pulmonary vein after pulmonary vein isolation for atrial fibrillation. However, it is sometimes difficult to differentiate pulmonary vein potentials from far-field potentials because of very low amplitudes. Our purpose was to evaluate the usefulness of a novel differential atrial pacing ... Read more >>

Int Heart J (International heart journal)
[2020, 61(3):503-509]

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Numerical Analysis of Eddy Current Distribution in Submental Region Induced by Magnetic Stimulation for Treating Dysphagia.

Hitoshi Mori, Hitoshi Kagaya, Yoko Inamoto, Shin-Ichi Izumi, Kenji Yashima, Toshiyuki Takagi,

Induced contraction of the suprahyoid muscles via magnetic stimulation is considered to be effective for the rehabilitation of dysphagia. In our previous study, a magnetic stimulation coil with a U-shaped core for stimulating the suprahyoid muscles was developed based on the results of numerical analysis using a simplified human head ... Read more >>

IEEE Trans Neural Syst Rehabil Eng (IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society)
[2020, 28(5):1178-1186]

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Impact of high-density mapping on outcome of the second ablation for atrial fibrillation.

Yoshifumi Ikeda, Ritsushi Kato, Hitoshi Mori, Kenta Tsutsui, Koji Goto, Takahiko Nagase, Sayaka Tanaka, Sou Asano, Mai Tawara, Midori Yukino, Saki Hasegawa, Shintaro Nakano, Shiro Iwanaka, Toshihiro Muramatsu, Kazuo Matsumoto,

PURPOSE:Identification of a conduction gap between the left atrium and pulmonary vein (LA-PV gap) and the circuit of atrial tachycardia after pulmonary vein isolation (PVI) is an important process during the second ablation for atrial fibrillation (AF). The high-density mapping system RHYTHMIA® is useful for identification of an LA-PV gap ... Read more >>

J Interv Card Electrophysiol (Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing)
[2020, :]

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Percutaneous Simple Lead Traction Is a Feasible and Effective Method for Right Ventricular Lead Perforations.

Hitoshi Mori, Ritsushi Kato, Yoshifumi Ikeda, Kenta Tsutsui, Saki Hasegawa, Sayaka Tanaka, Shiro Iwanaga, Shintaro Nakano, Toshihiro Muramatsu, Naokata Sumitomo, Kazuo Matsumoto,

Right ventricular (RV) lead perforations are relatively rare but a potentially life-threatening complication of surgical implantations of cardiac implantable electronic devices (CIEDs). The result of percutaneous simple lead traction after lead perforations in the Japanese population has not been well clarified.We retrospectively studied 1359 patients (pacemakers [PMs], 973 patients; implantable ... Read more >>

Int Heart J (International heart journal)
[2020, 61(1):54-59]

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Successful Ablation of Atrial Tachycardia Originating from Inside the Single Atrium and Conduit After a Fontan Operation.

Hitoshi Mori, Naokata Sumitomo, Shota Muraji, Tomohiko Imamura, Noriyuki Iwashita, Toshiki Kobayashi,

An 18-year-old male who had a past medical history of an intracardiac total cavopulmonary connection (TCPC) operation was referred to our hospital for radiofrequency catheter ablation (RFCA) of supraventricular tachycardia (SVT). Two types of SVTs were induced, and 3-dimensional (3D) maps were created using an ultra-high-density 3-dimensional mapping system (Rhythmia). ... Read more >>

Int Heart J (International heart journal)
[2020, 61(1):174-177]

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Erratum: Differential Atrial Pacing to Detect Reconnection Gaps After Pulmonary Vein Isolation in Atrial Fibrillation.

Mai Tahara, Ritsushi Kato, Yoshifumi Ikeda, Koji Goto, So Asano, Hitoshi Mori, Shiro Iwanaga, Toshihiro Muramatsu, Kazuo Matsumoto,

The errors in the following list appeared in the article entitled "Differential Atrial Pacing to Detect Reconnection Gaps After Pulmonary Vein Isolation in Atrial Fibrillation" by Mai Tahara, Ritsushi Kato, Yoshifumi Ikeda, Koji Goto, So Asano, Hitoshi Mori, Shiro Iwanaga, Toshihiro Muramatsu, and Kazuo Matsumoto (Vol. 61, No. 3, 503-509, ... Read more >>

Int Heart J (International heart journal)
[2020, 61(4):859]

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Ultra-high density mapping of intra-atrial reentrant tachycardia in a patient after a lateral tunnel total cavopulmonary connection.

Hitoshi Mori, Naokata Sumitomo, Shota Muraji, Noriyuki Iwashita, Toshiki Kobayashi, Ritsushi Kato,

We report a case of an 18-year-old male with a postsurgical lateral tunnel (LT) total cavopulmonary connection (TCPC) and supraventricular tachycardia (SVT). Patients after an LT TCPC have complicated suture lines and a considerable area of damaged myocardium in the LT, which could become a complex arrhythmogenic substrate of tachycardias. ... Read more >>

J Arrhythm (Journal of Arrhythmia)
[2019, 35(6):848-850]

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Influence of various energy settings and overlap ratios on size and continuity of lesions in a laser balloon ablation in vitro model.

Takahiko Nagase, So Asano, Midori Yukino, Hitoshi Mori, Koji Goto, Yoshifumi Ikeda, Shiro Iwanaga, Toshihiro Muramatsu, Hisamitsu Mukaida, Ritsushi Kato, Kazuo Matsumoto,

INTRODUCTION:The influence of power (Watt [W]) and total energy (Joule [J]) on lesion size and the optimal overlap ratio remain unclear in laser balloon (LB) ablation for atrial fibrillation. We aimed to evaluate lesion size and visible gaps after LB ablation with various energy settings and different overlap ratios in ... Read more >>

J. Cardiovasc. Electrophysiol. (Journal of cardiovascular electrophysiology)
[2019, 30(8):1330-1338]

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Relationship between the ablation index, lesion formation, and incidence of steam pops.

Hitoshi Mori, Ritsushi Kato, Naokata Sumitomo, Yoshifumi Ikeda, Koji Goto, Sayaka Tanaka, So Asano, Mai Tahara, Takahiko Nagase, Shiro Iwanaga, Toshihiro Muramatsu, Kazuo Matsumoto,

Background:The ablation index (AI) is reported to be useful for a durable pulmonary vein isolation (PVI). However, there have been no studies investigating the relationship between the power, contact force (CF), AI, and steam pops. Methods:Using an in vitro model, ablation energy was delivered until a steam pop occurred and ... Read more >>

J Arrhythm (Journal of Arrhythmia)
[2019, 35(4):636-644]

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Skeletal open bite with amelogenesis imperfecta treated with compression osteogenesis: a case report.

Hiroki Mori, Takashi Izawa, Hitoshi Mori, Keiichiro Watanabe, Takahiro Kanno, Eiji Tanaka,

BACKGROUND:We successfully treated a 37-year-old male who had skeletal open bite with severe amelogenesis imperfecta (AI) with orthodontics, compression osteogenesis, and prosthodontics. CASE PRESENTATION:The patient was diagnosed with severe anterior open bite caused by severe AI. Corticotomy was performed on both buccal and palatal sides of the molar regions, and ... Read more >>

Head Face Med (Head & face medicine)
[2019, 15(1):3]

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Nicotiana benthamiana RanBP1-1 Is Involved in the Induction of Disease Resistance via Regulation of Nuclear-Cytoplasmic Transport of Small GTPase Ran.

Yuri Mizuno, Mina Ohtsu, Yusuke Shibata, Aiko Tanaka, Maurizio Camagna, Makoto Ojika, Hitoshi Mori, Ikuo Sato, Sotaro Chiba, Kazuhito Kawakita, Daigo Takemoto,

Plant cells enhance the tolerances to abiotic and biotic stresses via recognition of the stress, activation and nuclear import of signaling factors, up-regulation of defense genes, nuclear export of mRNA and translation of defense proteins. Nuclear pore-mediated transports should play critical roles in these processes, however, the regulatory mechanisms of ... Read more >>

Front Plant Sci (Frontiers in plant science)
[2019, 10:222]

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Calcified mucinous adenocarcinoma of the stomach metastatic to the iris: a case report.

Miki Kaneko, Tadashi Namisaki, Hiroaki Takaya, Hitoshi Mori, Mitsuteru Kitade, Yasushi Okura, Kenichiro Seki, Shinya Sato, Keisuke Nakanishi, Koh Kitagawa, Takahiro Ozutsumi, Naotaka Shimozato, Kosuke Kaji, Tomoyuki Otani, Tokiko Nakai, Chiho Obayashi, Akira Mitoro, Junichi Yamao, Hitoshi Yoshiji,

BACKGROUND:Gastric cancer has a wide spectrum of clinical features, imaging manifestations, and pathology. Punctate calcifications in gastric cancer are infrequent but are usually found in mucinous adenocarcinoma. However, there have only been a few autopsy case reports describing the correlation between the radiology and pathology findings of calcified mucinous adenocarcinoma ... Read more >>

J Med Case Rep (Journal of medical case reports)
[2019, 13(1):64]

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The necessity of implantable cardioverter defibrillators in patients with Kearns-Sayre syndrome - systematic review of the articles.

Tomohiko Imamura, Naokata Sumitomo, Shota Muraji, Hitoshi Mori, Yousuke Osada, Takayuki Oyanagi, Takuro Kojima, Shigeki Yoshiba, Toshiki Kobayashi, Katsushige Ono,

The most common cardiac feature of Kearns-Sayre syndrome (KSS) is atrioventricular block (AVB), and pacemaker implantations (PMIs) are recommended for KSS patients with advanced AVB. However, some KSS patients develop fatal arrhythmias such as polymorphic ventricular tachycardia (PMVT) and ventricular fibrillation (VF) and die suddenly even after PMIs. We report ... Read more >>

Int. J. Cardiol. (International journal of cardiology)
[2019, 279:105-111]

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A Ycf2-FtsHi Heteromeric AAA-ATPase Complex Is Required for Chloroplast Protein Import.

Shingo Kikuchi, Yukari Asakura, Midori Imai, Yoichi Nakahira, Yoshiko Kotani, Yasuyuki Hashiguchi, Yumi Nakai, Kazuaki Takafuji, Jocelyn Bédard, Yoshino Hirabayashi-Ishioka, Hitoshi Mori, Takashi Shiina, Masato Nakai,

Chloroplasts import thousands of nucleus-encoded preproteins synthesized in the cytosol through the TOC and TIC translocons on the outer and inner envelope membranes, respectively. Preprotein translocation across the inner membrane requires ATP; however, the import motor has remained unclear. Here, we report that a 2-MD heteromeric AAA-ATPase complex associates with ... Read more >>

Plant Cell (The Plant cell)
[2018, 30(11):2677-2703]

Cited: 9 times

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Safety and accuracy of the Rhythmia mapping system in pediatric patients.

Hitoshi Mori, Shota Muraji, Naokata Sumitomo, Ritsushi Kato, Tomohiko Imamura, Akiko Komori, Noriyuki Iwashita, Toshiki Kobayashi, Kazuo Matsumoto,

BACKGROUND:A new mapping system (Rhythmia) using a 64 mini-electrode small basket array (Orion) was developed that enables rapid high-density mapping in a short time. However, there are few reports about the usefulness of this system in pediatric cases. OBJECTIVE:The purpose of this study was to investigate the safety and accuracy ... Read more >>

Heart Rhythm (Heart rhythm)
[2019, 16(3):388-394]

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Analysis of the heart rate variability during cryoballoon ablation of atrial fibrillation.

Hitoshi Mori, Ritsushi Kato, Yoshifumi Ikeda, Koji Goto, Sayaka Tanaka, So Asano, Yuichiro Shiki, Takahiko Nagase, Shiro Iwanaga, Shigeyuki Nishimura, Toshihiro Muramatsu, Kazuo Matsumoto,

Aims:Vagal responses such as marked bradycardia or a rapid blood pressure decrease are often observed during pulmonary vein (PV) isolation of atrial fibrillation (AF) using a cryoballoon (CB). However, the relationship between the marked vagal response and change in the heart rate variability (HRV) as a marker of the autonomic ... Read more >>

Europace (Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology)
[2018, 20(8):1259-1267]

Cited: 1 time

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Successful demonstration of the detailed connection between the twin atrioventricular nodes and sling in a patient with asplenia syndrome.

Hitoshi Mori, Naokata Sumitomo, Syota Muraji, Tomohiko Imamura, Toshiki Kobayashi, Ritsushi Kato,

HeartRhythm Case Rep (HeartRhythm case reports)
[2018, 4(10):480-483]

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The influence of the electrodes spacing of a mapping catheter on the atrial voltage substrate map.

Hitoshi Mori, Ritsushi Kato, Yoshifumi Ikeda, Koji Goto, Sayaka Tanaka, So Asano, Yuichiro Shiki, Takahiko Nagase, Mai Tahara, Shiro Iwanaga, Toshihiro Muramatsu, Kazuo Matsumoto,

BACKGROUND:Detailed substrate mapping is important for catheter ablation. However, the influence of the electrode spacing of the mapping catheter on the substrate map has not been well clarified. The aim of this study was to investigate the influence of the electrode spacing of the mapping catheter on the voltage of ... Read more >>

J Cardiol (Journal of cardiology)
[2018, 72(5):434-442]

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Hyoid Bone Movement at Rest by Peripheral Magnetic Stimulation of Suprahyoid Muscles in Normal Individuals.

Hitoshi Kagaya, Mao Ogawa, Shino Mori, Yoichiro Aoyagi, Seiko Shibata, Yoko Inamoto, Hitoshi Mori, Eiichi Saitoh,

OBJECTIVES:Neuromuscular electrical stimulation has been widely used in patients with dysphagia. However, obtaining sufficient hyoid bone movement through surface electrodes seems difficult. The aim of this study was to evaluate hyoid bone movement at rest through peripheral magnetic stimulation of the suprahyoid muscles in normal individuals. METHODS:Healthy adult men were ... Read more >>

Neuromodulation (Neuromodulation : journal of the International Neuromodulation Society)
[2019, 22(5):593-596]

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Retreat from Stress: Rattling in a Planar Coordination.

Koichiro Suekuni, Chul Ho Lee, Hiromi I Tanaka, Eiji Nishibori, Atsushi Nakamura, Hidetaka Kasai, Hitoshi Mori, Hidetomo Usui, Masayuki Ochi, Takumi Hasegawa, Mitsutaka Nakamura, Seiko Ohira-Kawamura, Tatsuya Kikuchi, Koji Kaneko, Hirotaka Nishiate, Katsuaki Hashikuni, Yasufumi Kosaka, Kazuhiko Kuroki, Toshiro Takabatake,

Thermoelectric devices convert heat flow to charge flow, providing electricity. Materials for highly efficient devices must satisfy conflicting requirements of high electrical conductivity and low thermal conductivity. Thermal conductivity in caged compounds is known to be suppressed by a large vibration of guest atoms, so-called rattling, which effectively scatters phonons. ... Read more >>

Adv. Mater. Weinheim (Advanced materials (Deerfield Beach, Fla.))
[2018, 30(13):e1706230]

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[Short-term sustained virological response in a patient with liver cirrhosis, hepatitis C, and declining hepatic spare ability during treatment with direct-acting antivirals].

Hitoshi Mori, Hiroaki Takaya, Tadashi Namisaki, Ryuichi Noguchi, Junichi Hanatani, Miki Kaneko, Kenichiro Seki, Yasushi Okura, Mitsuteru Kitade, Akira Mitoro, Junichi Yamao, Hitoshi Yoshiji,

A 75-year-old female patient with liver cirrhosis and hepatitis C was treated with direct-acting antivirals (DAA) (Sofosbuvir+Ledipasvir). The hepatitis C virus (HCV) -RNA level decreased to negative 4 weeks after the start of the treatment. Six weeks later, she developed ascites and showed declining hepatic spare ability. Accordingly, DAA treatment ... Read more >>

Nihon Shokakibyo Gakkai Zasshi (Nihon Shokakibyo Gakkai zasshi = The Japanese journal of gastro-enterology)
[2018, 115(5):476-484]

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Erratum: Precise genome-wide base editing by the CRISPR Nickase system in yeast.

Atsushi Satomura, Ryosuke Nishioka, Hitoshi Mori, Kosuke Sato, Kouichi Kuroda, Mitsuyoshi Ueda,

A correction to this Article has been published and is linked from the HTML version of this paper. The error has been fixed in the paper. ... Read more >>

Sci Rep (Scientific reports)
[2017, 7(1):12354]

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Precise genome-wide base editing by the CRISPR Nickase system in yeast.

Atsushi Satomura, Ryosuke Nishioka, Hitoshi Mori, Kosuke Sato, Kouichi Kuroda, Mitsuyoshi Ueda,

The CRISPR/Cas9 system has been applied to efficient genome editing in many eukaryotic cells. However, the bases that can be edited by this system have been limited to those within the protospacer adjacent motif (PAM) and guide RNA-targeting sequences. In this study, we developed a genome-wide base editing technology, "CRISPR ... Read more >>

Sci Rep (Scientific reports)
[2017, 7(1):2095]

Cited: 12 times

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An NADPH Oxidase RBOH Functions in Rice Roots during Lysigenous Aerenchyma Formation under Oxygen-Deficient Conditions.

Takaki Yamauchi, Miki Yoshioka, Aya Fukazawa, Hitoshi Mori, Naoko K Nishizawa, Nobuhiro Tsutsumi, Hirofumi Yoshioka, Mikio Nakazono,

Reactive oxygen species (ROS) produced by the NADPH oxidase, respiratory burst oxidase homolog (RBOH), trigger signal transduction in diverse biological processes in plants. However, the functions of RBOH homologs in rice (Oryza sativa) and other gramineous plants are poorly understood. Ethylene induces the formation of lysigenous aerenchyma, which consists of ... Read more >>

Plant Cell (The Plant cell)
[2017, 29(4):775-790]

Cited: 29 times

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