SHIMATA Keita

写真a

Title

Assistant Professor
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Current Affiliation Organization 【 display / non-display 】

  • Duty   University of the Ryukyus   Graduate School of Medicine   Assistant Professor  

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University 【 display / non-display 】

  • 2003
    -
    2009

    Kumamoto University   Faculty of Medicine   Graduated

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Graduate School 【 display / non-display 】

  • 2016
    -
    2020

    Kumamoto University  Graduate School, Division of Medicine  Doctor's Course  Accomplished credits for doctoral program

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External Career 【 display / non-display 】

  • 2019.04
    -
    2020.03

     

  • 2021.04
    -
    2024.04

    Kumamoto University  

  • 2024.04
    　
    　

    University of the Ryukyus  

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Affiliated academic organizations 【 display / non-display 】

  • 　
    　
    　
     

    International Liver Transplantation Societry 

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Research Interests 【 display / non-display 】

  • 肝障害・肝再生時の好中球動態

  • Liver transplantation

  • Acute liver failure

  • SOX9

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Research Areas 【 display / non-display 】

  • Life Science / Digestive surgery

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Published Papers 【 display / non-display 】

  • Portal vein stenting blocked the inflow tract and completely resolved bile duct varices, formed by cavernous transformation of the portal vein

    Matsubara D.

    Clinical Journal of Gastroenterology ( Clinical Journal of Gastroenterology )    2024.08 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

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    There is no established treatment for bleeding bile duct varices (BDVs). We report the first case of portal vein (PV) stenting completely eradicating bleeding BDVs. A 70-year-old male with malignant lymphoma developed BDVs due to PV obstruction, which had caused compression and stricture of the distal bile duct. Endoscopic retrograde cholangiography was performed to evaluate the stricture and bleeding from the ruptured BDV was observed. Endoscopic hemostasis was difficult, requiring reopening of the extra-hepatic PV and reducing the blood flow to the BDVs for hemostasis. Therefore, PV stenting was performed. During the procedure, portal angiography confirmed an inflow tract to the BDVs. Therefore, covered stents were placed in the PV and adjusted to block the inflow tract to the BDVs at the distal end. After stenting, the BDVs were successfully blocked and all PV blood flowed through the stent placed in the extra-hepatic PV. Two weeks after stenting, the BDVs had disappeared completely and the bleeding has not recurred for months. We experienced a case in which PV stenting not only reopened an obstructed PV but also successfully occluded the inflow tract. This case demonstrates the potential of PV stenting for the treatment of hemorrhagic BDVs.

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  • Corrigendum to 'A novel scoring system to predict short-term mortality after living donor liver transplantation for acute liver failure' American Journal of Transplantation, Available online 29 April 2024, In Press, Corrected Proof.

    Shimata K, Yoon YI, Hibi T, Morinaga J, Narayanan AK, Toshima T, Ito T, Akamatsu N, Kotera Y, Hong SK, Hasegawa Y, Umeda Y, Reddy MS, Ong AL, Sivaprasadan S, Varghese J, Sugawara Y, Chen CL, Nakayama N, Mochida S, Tanaka A, Suh KS, Ikegami T, Lee KW, Lee SG, Vanguard Multicenter Study of International Living Donor Liver Transplantation (iLDLT) Group

    American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons ( American Journal of Transplantation )    2024.08 [ Peer Review Accepted ]

    Type of publication: Research paper (other science council materials etc.)

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  • Feasible living donor liver transplantation for patients on chronic hemodialysis: a multicenter study in East Asian countries.

    Kenei Furukawa, Kwang-Woong Lee, Keita Shimata, Takashi Ito, Takeo Toshima, Nobuhisa Akamatsu, Taizo Hibi, Suk Kyun Hong, Jong Man Kim, Etsuro Hatano, Tomoharu Yoshizumi, Toru Ikegmi, Kyung-Suk Suh

    Surgery today   54 ( 5 ) 471 - 477   2024.05 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

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    PURPOSES: End-stage liver and kidney disease is an indication for simultaneous liver and kidney transplantation. However, in countries where deceased donor transplantation is not well established, living donor liver transplantation (LDLT) is a realistic option for patients on hemodialysis (HD). We investigated the outcomes of LDLT for patients on HD. METHODS: We conducted a retrospective multicenter survey of patients on chronic HD who underwent LDLT in East Asian countries. The characteristics of donors and recipients and the short and long-term outcomes were analyzed. RESULTS: Between 2001 and 2021, 45 patients on HD underwent LDLT and 11 of these patients also underwent kidney transplantation (KT). The overall survival rate at 5 years of the 34 patients who underwent only LDLT was 44.5%. Multivariate analysis identified a low graft recipient weight ratio (< 1%) (p = 0.048) and long HD duration (≥ 10 years) (p = 0.046) as independent predictors of poor overall survival. The major complication was posttransplant bleeding, which occurred in12 patients (35%). CONCLUSION: It is important to establish the indications for LDLT, taking into consideration graft size and HD duration in candidate patients on HD.

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  • A novel scoring system to predict short-term mortality after living donor liver transplantation for acute liver failure.

    Shimata K, Yoon YI, Hibi T, Morinaga J, Narayanan AK, Toshima T, Ito T, Akamatsu N, Kotera Y, Hong SK, Hasegawa Y, Umeda Y, Reddy MS, Ong AL, Sivaprasadan S, Varghese J, Sugawara Y, Chen CL, Nakayama N, Mochida S, Tanaka A, Suh KS, Ikegami T, Lee KW, Lee SG, Vanguard Multicenter Study of International Living Donor Liver Transplantation (iLDLT) group

    American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons ( American Journal of Transplantation )    2024.04 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

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  • Excess mortality in COVID-19-affected solid organ transplant recipients across the pandemic

    Shigeyoshi Yamanaga, Keita Shimata, Satoko Ohfuji, Mikiko Yoshikawa, Yoichiro Natori, Taizo Hibi, Kenji Yuzawa, Hiroto Egawa, Kohei Unagami, Hideki Ishida, Kazuya Omoto, Mureo Kasahara, Hajime Uchida, Seisuke Sakamoto, Kenta Futamura, Kenta Nishikawa, Ryoichi Imamura, Shigeaki Nakazawa, Etsuro Hatano, Takashi Ito, Yuki Masano, Morikuni Nishihira, Yuta Hirata, Yasunaru Sakuma, Yasuharu Onishi, Naoki Yokoyama, Shingo Yamamoto, Yusuke Yamada, Yasuhiro Ogura, Nobuhiko Kurata, Junji Uchida, Kazuya Kabei, Hitoshi Iwamoto, Chie Ikeda, Kazunobu Shinoda, Miki Yoshiike, Kiyohiko Hotta, Yuji Hidaka, Daiki Iwami, Yasuo Ishii, Manabu Kamiyama, Tomoharu Yoshizumi, Yukiko Kosai-Fujimoto, Takaaki Kobayashi, Kentaro Motoyama, Megumi Yamamoto, Toshihiro Asai, Masayuki Tasaki, Takashi Kenmochi, Taihei Ito, Kazuaki Tokodai, Atsushi Fujio, Yasumasa Tsukamoto, Takuya Watanabe, Nobuhisa Akamatsu, Sachi Yamashina, Daisuke Ishii, Kazuki Kitajima, Yasutoshi Yamada, Akihiko Mitsuke, Takashi Sakaguchi, Michio Nakamura, Yusuke Tomita, Yuki Nakamura, Tatsuro Ishimoto, Hideki Ohdan, Naoki Tanimine, Takuzo Fujiwara, Mitsuki Yanagihara, Shingo Hatakeyama, Manabu Takai, Kazuhiro Nose, Takashi Kikuchi, Yasunori Mori, Motoo Araki, Takanori Sekito, Shingo Nishimura, Tatsu Tanabe, Yuto Igarashi, Sumi Hidaka, Masaaki Watanabe, Yuichi Ariyoshi, Yasushi Hasegawa, Masato Kamiyama, Tatsuo Yoneda, Tomokazu Shimizu, Kouhei Nishikawa, Takumi Fukumoto, Kaoru Kuramitsu, Masashi Kato, Mitsuru Saito, Makoto Shinkai, Hidehito Usui, Masaaki Sato, Hidetoshi Eguchi, Hiroki Imamura, Shogo Kobayashi, Yuji Soejima, Atsuyoshi Mita, Takashi Kobayashi, Kenji Nakamura, Masayuki Ohtsuka, Shinichiro Nakada, Takahito Yagi, Kazuya Yasui, Naoto Matsuno, Chiharu Mizuno, Mikio Sugimoto, Nobufumi Ueda, Yoshinori Okada, Takashi Hirama, Shinichi Toyooka, Seichiro Sugimoto, Kei Matsubara, Toru Ikegami, Kenei Furukawa, Hiroyuki Nitta, Hirokatsu Katagiri, Toru Onita, Takeshi Shiraishi, Shugo Mizuno, Eisuke Amiya, Yasushi Shintani, Takashi Kanou, Soichiro Funaki, Yoshifumi Miura, Daisuke Nakajima, Taizen Urahashi, Goro Matsumiya, Michiko Watanabe, Yosuke Ebisu, Ryosuke Osawa, Minoru Ono, Hiroshi Sogawa, Harumi Gomi, Toyofumi Chen-Yoshikawa, Kazunari Yoshida, Naoko Ogawa

    American Journal of Transplantation     2024.03 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

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Other Papers 【 display / non-display 】

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Grant-in-Aid for Scientific Research 【 display / non-display 】

  • Elucidation of spatiotemporal changes and conversion mechanisms of neutrophil subtypes during liver injury and regeneration

    Grant-in-Aid for Early-Career Scientists

    Project Year: 2023.04  -  2026.03 

    Direct: 3,500,000 (YEN)  Overheads: 4,550,000 (YEN)  Total: 1,050,000 (YEN)

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