YAMAMOTO Ryohei

写真a

Affiliation

Hospital  Urology 

Research Interests 【 display / non-display

  • 悪性腫瘍

  • 腎移植

Graduating School 【 display / non-display

  •  
    -
    2010.03

    Akita University   Faculty of Medicine   Graduated

Graduate School 【 display / non-display

  • 2014.04
    -
    2021.03

    Akita University  Graduate School, Division of Medicine  Doctor's Course  Completed

Campus Career 【 display / non-display

  • 2021.04
    -
    Now

    Akita University   Hospital   Urology   Assistant Professor  

Academic Society Affiliations 【 display / non-display

  • 2012.04
    -
    Now
     

    Japan

     

    The Japanese Urological Association

Research Areas 【 display / non-display

  • Life Science / Urology

  • Life Science / General surgery and pediatric surgery

 

Thesis for a degree 【 display / non-display

  • Treg expansion with trichostatin A ameliorates kidney ischemia/reperfusion injury in mice by suppressing the expression of costimulatory molecules

    Ryohei Yamamoto, Mitsuru Saito, Kazuyuki Numakura, Shintaro Narita, Takamitsu Inoue, Shigeru Satoh, Tomonori Habuchi  

    Transplant immunology    2021.03

    Single author

Research Achievements 【 display / non-display

    ◆Original paper【 display / non-display

  • Specific Gut Microbial Environment in Lard Diet-Induced Prostate Cancer Development and Progression

    Sato H.

    International Journal of Molecular Sciences ( International Journal of Molecular Sciences )  23 ( 4 )   2022.02

    Research paper (journal)  

    DOI

  • Successful Re-Administration of Nivolumab in Patient with Metastatic Renal Cell Carcinoma : A Case Report

    Sasagawa H.

    Hinyokika kiyo. Acta urologica Japonica ( Hinyokika kiyo. Acta urologica Japonica )  67 ( 12 ) 525 - 528   2021.12

    Research paper (journal)  

    A 46-year-old woman was referred to our hospital with a left-sided renal tumor pointed out by ultrasonography at the time of a medical checkup.Computed tomography revealed a mass measuring 88×77×68 mm on the upper pole of the left kidney. She was diagnosed with cT2aN0M0 clear cell renal cell carcinoma. Laparoscopic left nephrectomy was performed uneventfully. Histopathological diagnosis was clear cell renal cell carcinoma, G2, v1, pT2. Four months after surgery, lung metastases appeared, and systemic therapy was given sequentially as follows ; sunitinib for 2 months, nivolumab for 8 months, axitinib for 17 months, and pazopanib for 2 months.However, metastases progressed, and a re-administration of nivolumab was planned. The nivolumab re-treatment resulted in a marked reduction in multiple lung metastases despite the previous failure by nivolumab treatment. There are few reports on the therapeutic effect of re-administration of nivolumab. We report a case of successful treatment by re-administration of nivolumab.

    DOI CiNii Research

  • ロボット支援腎部分切除術における腎実質縫合の有無による術後腎実質体積のCT volumetryを用いた比較検討

    提箸 隆一郎, 井上 高光, 中島 志織, 嘉島 相輝, 山本 竜平, 小泉 淳, 奈良 健平, 神田 壮平, 沼倉 一幸, 齋藤 満, 成田 伸太郎, 佐藤 滋, 羽渕 友則

    Japanese Journal of Endourology ( 日本泌尿器内視鏡学会 )  34 ( 1 ) 130 - 135   2021

    Research paper (journal)  

    <p>【目的】ロボット支援腎部分切除術 (RAPN) における腎実質縫合の追加が術後の腎実質体積を減少させるかを画像解析ソフトにより検討した. また腎機能, 合併症への影響も検討した.</p><p>【対象と方法】2013年11月から2018年11月までに当科でRAPNを行ったT1a症例69例のうち, 腎実質縫合を施行した26例 (実質縫合群) と省略した43例 (非縫合群) を後方視的に比較した. Synapse Vincent ver. 4を用いて, 術前と術後6カ月の造影CTから腎実質減少体積を推定した.</p><p>【結果】2群間の患者背景や手術成績に有意差はなかった. 腎実質体積の減少量やeGFRの低下率, 合併症の発生率に有意差を認めなかった.</p><p>【結語】RAPNにおける腎実質縫合の追加は腎実質体積や腎機能, 合併症の発生に影響しなかった.</p>

    DOI CiNii Research

  • 上部尿路上皮癌に対するロボット支援腹腔鏡下腎尿管全摘除術の経験

    齋藤 満, 成田 伸太郎, 沼倉 一幸, 嘉島 相輝, 山本 竜平, 小泉 淳, 奈良 健平, 羽渕 友則

    Japanese Journal of Endourology ( 日本泌尿器内視鏡学会 )  34 ( 2 ) 318 - 322   2021

    Research paper (journal)  

    <p> 今回我々はロボット支援腹腔鏡下腎尿管全摘除術 (RNU) の初期経験を得た.</p><p> 対象は2019年7月から2020年7月にda Vinci Si (4例) またはXi (2例) サージカルシステムでRNUを受けた6症例. 全例男性で患側は左4例, 右2例, cT3の3例を含む4例で術前化学療法を施行した. 完全側臥位, 軽度ジャックナイフ体位, 6または7ポート, 経腹膜アプローチで手術を施行した. 術中, 体位変換やペイシェントカートの移動は行わなかった.</p><p> 手術時間の中央値は308分, 推定出血量の中央値は63 mLで輸血や開腹手術移行は無かった. pT3の左尿管癌症例1例で摘出標本断端が陽性であった. 周術期合併症はClavien-dindo分類でGrade Ⅱの乳糜腹水, 下痢を1例ずつ認めた.</p><p> RNUは手術手技の標準化とより多くの症例を対象とした長期追跡調査が必要であるが, UTUC症例に対する新たな治療選択肢となり得る.</p>

    DOI CiNii Research

  • Seminal Vesicle Cystadenoma with Concurrent Prostate Cancer : A Case Report

    石田 雅宣, 井上 高光, 小泉 淳, 山本 竜平, 奈良 健平, 神田 壮平, 沼倉 一幸, 齋藤 満, 成田 伸太郎, 佐藤 滋, 羽渕 友則

    泌尿器科紀要 ( 泌尿器科紀要刊行会 )  66 ( 10 ) 351 - 355   2020.10

    Research paper (journal)  

    DOI CiNii Research

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    ◆Research society, Symposium materials, etc.【 display / non-display

  • Preoperative Obesity based on Body mass Index of Kidney Transplant Recipients: Its Impact for the Clinical Outcome

    Ryohei Yamamoto, Mitsuru Saito, Nobuhiro Fujiyama, Taketoshi Nara, Kazuyuki Numakura, Shintaro Narita, Tomonori Habuchi

    Akita Nephrology Dialysis Transplantation   25   125 - 131   2022.11  [Refereed]

    Research paper (research society, symposium materials, etc.)   Domestic Co-author

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

  • Grant-in-Aid for Early-Career Scientists

    Project Year: 2021.04  -  2024.03 

  • Grant-in-Aid for Young Scientists(B)

    Project Year: 2021.04  -  2023.03 

  • Protective Effects of Regulatory T cells in Renal Ischemia-Reperfusion Injury in a Murine Model

    Grant-in-Aid for Young Scientists(B)

    Project Year: 2017.04  -  2019.03  Investigator(s): YAMAMOTO RYOHEI

Presentations 【 display / non-display

  • A Case of Renal Anastomosing Hemangioma

    SASAKI Yoshiki, KASHIMA Soki, KOYAMA Takashi, HIROSHIMA Yuko, AMANO Kenji, TAKAHASHI Syuhei, NARA Taketoshi, KOIZUMI Atsushi, YAMAMOTO Ryohei, NUMAKURA Kazuyuki, SAITO Mitsuru, NARITA Shintaro, NANJO Hiroshi, SATOH Shigeru, HABUCHI Tomonori

    2022.08  -  2022.08 

    DOI

  • Preoperative rebound of anti-ABO blood type antibody is a risk f actor of acute antibody-mediated rejection in kidney transplant recipients even in rituximab era

    Ryohei Yamamoto, et al

    American Urological Association2021  2021.09  -  2021.09 

  • マウス腎虚血/再灌流障害モデルにおける制御性T細胞の腎保護効果の検討

    山本 竜平,他

    第86回日本泌尿器科学会東部総会  (旭川)  2021.09  -  2021.09