Explanipedia

Progress and Future Perspectives of the U-40 Basic Lecture Course Hands-on Seminar in the Post-COVID-19 Era: Experience from the Hokkaido Branch Open

Hiroki Uchiyama, Masato Fusegawa, Naohiro Wakabayashi, Ryosuke Numaguchi, Kei Mukawa , et al. · 2025

Successful surgical repair of aortic root rupture during transcatheter aortic valve implantation: a case report Open

Ryosuke Numaguchi, Noriyuki Yokoyama, Kazunori Ishikawa, Atsuhiro Koya, Yusuke Tokuda , et al. · 2024

Background Aortic root rupture is a rare but potentially fatal complication of transcatheter aortic valve implantation (TAVI). Herein, we report a case of aortic root rupture during TAVI that was successfully managed with partial aortic ro…

Mitral valve replacement with annuloplasty in a patient with infected mitral annular calcification Open

Tatsuya Horibe, Hideaki Hidaka, Ryosuke Numaguchi, Jun Takaki, Kosaku Nishigawa , et al. · 2023

Key Clinical Message Extensive resection of the infected calcified annulus and the reconstruction with a pericardial patch for the debrided annulus is an effective surgical option for the treatment of infectious endocarditis in patients wi…

Factors Affecting Recovery of 6-Minute Walk Distance After Coronary Artery Bypass Grafting Open

N. Araki, Takafumi Hirota, Hideaki Hidaka, Tatsuya Horibe, Ryosuke Numaguchi , et al. · 2023

Background: This single-center retrospective analysis investigated the number of days required for postoperative 6-minute walk distance (6MWD) to recover to preoperative values after coronary artery bypass grafting (CABG) and…

Mitral valve replacement with annuloplasty in a patient with infected mitral annular calcification Open

Tatsuya Horibe, Hideaki Hidaka, Ryosuke Numaguchi, Jun Takaki, Kosaku Nishigawa , et al. · 2023

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Comparison of Phenotypes in Subcutaneous Fat and Perivascular Adipose Tissue Surrounding the Saphenous Vein in Coronary Artery Bypass Grafting Open

Takuma Mikami, Masato Furuhashi, Ryosuke Numaguchi, Itaru Hosaka, Akiko Sakai , et al. · 2023

The properties of SV-PVAT are close to, but not the same as, those of SCAT, possibly resulting from inherent differences in adipocytes. SV-PVAT has healthy expansion with less fibrosis in fat than SCAT.

Combined mitral valve replacement and coronary artery bypass grafting through a left thoracotomy after retrosternal oesophageal reconstruction Open

Ryosuke Numaguchi, Chikara Shiiku · 2022

A 74-year-old man with a history of retrosternal oesophageal reconstruction was referred for surgical treatment of mitral valve regurgitation and coronary artery disease. He underwent mitral valve replacement combined with coronary artery …

U-40 Column Advanced Lecture Course Open

Kunihiko Yoshino, Kenichiro Takahashi, Eigo Ikushima, Ai Ishizawa, Keiichi Ishida , et al. · 2022

外科教育におけるoff the job training (off-JT)の重要性は広く認識されており，2017年より心臓血管外科専門医取得に際し30時間以上のoff-JTを義務付けている。U-40 Basic Lecture Courseは，若手心臓血管外科医を対象に基本的な手術手技を学ぶ機会を提供するべく毎年開催されている。U-40 Advanced Lecture Courseは，若手心臓血管外科医を対象に，より高度なレクチャー，ハンズオンセミナーを受ける機会を提供す…

Remote simulator training of coronary artery bypass grafting during the coronavirus disease 2019 pandemic Open

Kenichiro Takahashi, Chiharu Tanaka, Ryosuke Numaguchi, Yoshinori Kuroda, Hiroko Nemoto , et al. · 2021

Faculty-supervised remote surgical training sessions were executed with satisfactory results. This methodology may have important implications for surgical education during the coronavirus disease 2019 pandemic.

Antiatherosclerotic Phenotype of Perivascular Adipose Tissue Surrounding the Saphenous Vein in Coronary Artery Bypass Grafting Open

Takuma Mikami, Masato Furuhashi, Akiko Sakai, Ryosuke Numaguchi, Ryo Harada , et al. · 2021

Background Perivascular adipose tissue (PVAT) is associated with metabolically driven chronic inflammation called metaflammation, which contributes to vascular function and the pathogenesis of vascular disease. The saphenous vein (SV) is c…

Role of the Japanese Training Facilities for Young Cardiovascular Surgeons Open

Ryota Murase, Ryosuke Numaguchi, Takamitsu Tatsukawa, Satoshi Sugimoto, Akihito Ookawa , et al. · 2021

日本心臓血管外科学会U-40コラムでは現在，専門医制度を主テーマとしている．心臓血管外科専門医制度は新制度を迎えるが，Off the Job Trainingや人工心肺体験型実習など，各修練施設が積極的に取り組まなければならないことも多い．第3回目の今号ではU-40北海道支部U-40メンバーへのアンケート調査を通して，若手心臓血管外科医が専門医取得のために修練施設に求めることは何かを調査した．この調査が各修練施設への啓蒙や若手医師の専門医取得の助けになれば幸いである．

Surgical treatment of a giant right atrial myxoma Open

Ryosuke Numaguchi, Makoto Hashimoto, Ryuji Koshima, Keijiro Mitsube · 2020

Perioperative Infection and Surgical Site Management No.13 Open

Tatsuya Seki, Hitoki Hashiguchi, Ryosuke Numaguchi, Satoshi Sugimoto, Ryota Murase , et al. · 2019

Differential Phenotypes in Perivascular Adipose Tissue Surrounding the Internal Thoracic Artery and Diseased Coronary Artery Open

Ryosuke Numaguchi, Masato Furuhashi, Megumi Matsumoto, Hiroshi Sato, Yohsuke Yanase , et al. · 2019

Background Perivascular adipose tissue ( PVAT ) is causally associated with vascular function and the pathogenesis of vascular disease in association with metabolically driven chronic inflammation called metaflammation. However, the differ…

Morphological predictor of remodelling of the descending thoracic aortic false lumen that remains patent after repair of acute type A dissection Open

Toshitaka Watanabe, Toshiro Ito, Hiroshi Sato, Takuma Mikami, Ryosuke Numaguchi , et al. · 2018

Quantitative evaluation of shape of the true lumen in the early postoperative stages after surgery for acute type A dissection can serve as a viable predictor for false lumen remodelling in later stages. Furthermore, the first principal co…

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