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  1. Article

    Open Access

    Restrictive annuloplasty or replacement on reverse remodeling for nonischemic dilated cardiomyopathy

    For patients with nonischemic dilated cardiomyopathy (NIDCM), the indications for and results of mitral surgery remain controversial. We reviewed a strategy of mitral repair and replacement for clinically rele...

    Yusuke Misumi, Masashi Kawamura, Daisuke Yoshioka in Journal of Cardiothoracic Surgery (2024)

  2. No Access

    Article

    Left ventricular assist device temporary explantation as a strategy for infection control in a pediatric patient

    We report a case of temporary Berlin Heart EXCOR® explantation in a pediatric patient with idiopathic dilated cardiomyopathy who suffered an uncontrollable inflow cannulation site infection while on bridge-to-...

    Akiko Umetsu, Masaki Taira, Moyu Hasegawa, Takuji Watanabe in Journal of Artificial Organs (2024)

  3. No Access

    Article

    Successful trans-femoral retrieval of a stuck axillary Impella 5.0 device

    We describe a case in which an axillary Impella 5.0, stuck in an area of calcification in the right subclavian artery, could not be retrieved in the usual manner. However, it was successfully removed using a l...

    Yusuke Hamada, Kazuo Shimamura, Keiwa Kin, Takuji Kawamura in Journal of Artificial Organs (2024)

  4. No Access

    Article

    The usefulness of chest drain and epicardial pacing wire culture for diagnosing mediastinitis after open-heart surgery

    Culture of extracted drains or epicardial pacing wires is an easy and noninvasive method for detecting mediastinitis after open-heart surgery, although studies on its sensitivity and specificity are limited. W...

    Ai Kawamura, Daisuke Yoshioka, Masashi Kawamura, Takuji Kawamura in Surgery Today (2024)

  5. Article

    Open Access

    One-year outcome of transcatheter aortic valve replacement for bicuspid aortic valve stenosis: a report from the Japanese Nationwide registry (J-TVT registry)

    The outcome of transcatheter aortic valve replacement (TAVR) for patients with bicuspid aortic valve (BAV) remains unclear, particularly among Asian patients that are known to have different valvular morpholog...

    Takashi Mukai, Hiraku Kumamaru, Shun Kohsaka in Cardiovascular Intervention and Therapeuti… (2023)

  6. Article

    Open Access

    Preoperative higher right ventricular stroke work index increases the risk of de novo aortic insufficiency after continuous-flow left ventricular assist device implantation

    During continuous-flow left ventricular assist device (CF-LVAD) support, hemodynamic shear stress causes a burden on aortic valve (AV) leaflets, leading to de novo aortic insufficiency (AI). This study investi...

    Shusaku Maeda, Koichi Toda, Kazuo Shimamura, Kei Nakamoto in Journal of Artificial Organs (2023)

  7. Article

    Open Access

    Pseudoaneurysm after aortopulmonary window repair and bilateral lung transplantation for eisenmenger syndrome: a case report

    Aortopulmonary window (APW) is a rare congenital cardiac anomaly characterized by communication between the main pulmonary artery and ascending aorta. There are various surgical techniques, and the short- and ...

    Toshiaki Nagashima, Masaki Taira, Moyu Hasegawa in Journal of Cardiothoracic Surgery (2023)

  8. Article

    Open Access

    Impact of bench repair for donor mitral valve before orthotopic heart transplantation: a case report

    The use of donor hearts with valvular disease has been considered debatable in heart transplantation for many years. However, few reports indicate successful heart transplantation using donor hearts with mitra...

    Tsubasa Mikami, Takuji Kawamura, Yoshito Ito in General Thoracic and Cardiovascular Surger… (2023)

  9. Article

    Open Access

    Intravenous infusion of bone marrow-derived mesenchymal stem cells improves tissue perfusion in a rat hindlimb ischemia model

    Intravenous infusion of stem cells is a minimally invasive cellular delivery method, though a few have been reported in a critical limb-threatening ischemia (CLTI) animal model or patients. In the present stud...

    Shusaku Maeda, Takuji Kawamura, Masanori Sasaki, Kazuo Shimamura in Scientific Reports (2022)

  10. No Access

    Article

    Successful transfemoral-transcatheter aortic valve replacement in high-risk patients with a grade 4 atheroma in the ascending aorta: cerebral protection with a filter device

    Perioperative stroke is one of the most serious complications after transcatheter aortic valve replacement (TAVR), and it should be especially noted in patients with an atheroma in the ascending aorta. Here, w...

    Ai Kawamura, Koichi Maeda, Kizuku Yamashita in General Thoracic and Cardiovascular Surgery (2022)

  11. No Access

    Article

    Impact of radiation to the eye of operators during endo-cardiovascular surgery and the importance of protection

    To verify the amount of radiation exposure to the eye of operators during endocardiovascular surgery (ECVS) in hybrid operating room (HOR), which increases the risk of cataracts in surgeons.

    Junki Yokota, Toru Kuratani, Kazuo Shimamura in General Thoracic and Cardiovascular Surgery (2022)

  12. No Access

    Article

    A hybrid approach for a case with a high risk of not only surgical but transcatheter aortic valve replacement

    An 86-year-old woman with severe aortic stenosis was thought to be at a high risk for surgical aortic valve replacement and inoperability due to old age and porcelain aorta. Furthermore, transcatheter aortic v...

    Tsubasa Mikami, Koichi Maeda in General Thoracic and Cardiovascular Surgery (2021)

  13. No Access

    Article

    Total endovascular aortic repairs using branched devices for arch and thoracoabdominal aneurysms

    Endovascular repair can be an alternative to conventional surgery for arch and thoracoabdominal aneurysms; however, it has the limits of available stent-grafts in anatomy. We present the case of an 87-year-old...

    Tomoaki Kudo, Toru Kuratani, Kazuo Shimamura in General Thoracic and Cardiovascular Surgery (2021)

  14. No Access

    Article

    Development of a new risk model for a prognostic prediction after transcatheter aortic valve replacement

    Current guidelines for transcatheter aortic valve replacement (TAVR) recommend that TAVR should be performed in patients with a life expectancy > 1 year. However, it is challenging to estimate the patients’ li...

    Koichi Maeda, Toru Kuratani, Kyongsun Pak in General Thoracic and Cardiovascular Surgery (2021)

  15. Article

    Open Access

    Salvage surgery for stage IVa thymic carcinoma combined with aortic arch resection – case report

    Although complete surgical resection of thymic carcinoma is a prognostic factor, extended surgery combined with a major blood vessel procedure remains controversial because of the increased risk of mortality. ...

    Hiroyuki Yamato, Soichiro Funaki, Kazuo Shimamura in Journal of Cardiothoracic Surgery (2020)

  16. Article

    Open Access

    Complete resection of local advanced thymic carcinoma with total aortic arch replacement after chemotherapy: a case report

    Although complete surgical resection of thymic carcinoma is a prognostic factor, it is not always an option for advanced tumors because of locoregional invasion. Extended surgery combined with a major blood ve...

    Hidenori Kuno, Soichiro Funaki, Kenji Kimura, Kazuo Shimamura in Surgical Case Reports (2019)

  17. No Access

    Article

    Mid-term results of endovascular treatment with the Gore TAG device for degenerative descending thoracic aortic aneurysms

    To confirm the validity of using Gore TAG for degenerative descending thoracic aneurysm repair, we evaluated the mid-term clinical outcomes in our single-center experience.

    Junji Yunoki, Toru Kuratani in General Thoracic and Cardiovascular Surgery (2015)

  18. No Access

    Article

    Clinical experience with the RELAY NBS PLUS stent–graft for aortic arch pathology

    To assess the safety, efficacy and performance of the RELAY NBS PLUS stent–graft in patients with aortic arch pathology.

    Junji Yunoki, Toru Kuratani, Yukitoshi Shirakawa, Kei Torikai in Surgery Today (2014)

  19. No Access

    Article

    Systolic anterior motion of the mitral valve and severe mitral regurgitation immediately after transcatheter aortic valve replacement

    We report a high-risk patient with severe symptomatic aortic stenosis who showed systolic anterior motion of the mitral valve (SAM) and severe mitral regurgitation immediately after transcatheter aortic valve ...

    Yasuharu Takeda, Satoshi Nakatani, Toru Kuratani in Journal of Echocardiography (2012)

  20. No Access

    Article

    Transcatheter aortic valve implantation: first trans-iliac experience in Japan

    Conventional aortic valve replacement (AVR) is the gold standard surgical treatment for symptomatic aortic valve stenosis. However, some patients are not referred for open surgical procedure because of their h...

    Satoshi Kainuma, Toru Kuratani in General Thoracic and Cardiovascular Surgery (2011)

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