茨城県筑西市の内科なら大圃クリニック｜内科学会認定医在籍

〒308-0031 茨城県筑西市丙１５３−４　JR水戸線 下館駅北口より徒歩4分
診療時間
9:00-12:30 / 14:30-18:00
休診日
木曜、土曜午後、日曜、祝日
0296-21-0123

医師紹介

医師紹介

院長挨拶

当院のホームページをご覧いただきありがとうございます。

1946年（昭和21年）に父が『大圃外科医院』を開院し、約70年にわたり、入院・手術の出来る病院として、地域医療に取り組んで参りました。

1967年には『大圃病院』、1994年に『大圃クリニック』と名称と診療体制を変更し、今まで同様に多くの患者様にご来院いただいております。

これからも患者様一人ひとりの健康と快適な生活を支えることを最優先に考え、地域社会に寄り添った診療ができるよう身近なかかりつけ医を目指して参ります。

院長   大圃 弘

Hiroshi Ohata

経歴

  • 昭和45年 日本大学医学部医学科 卒業
  • 昭和45年 日本大学医学部第一外科、大圃病院外科
  • 昭和55年 医学博士 取得
  • 平成4年 医療法人桜仁会 理事長
  • 平成6年 大圃クリニック 院長

在籍日

院長は原則として院内におります。御用の際は、お申し出ください。

担当診療科目

内科、消化器科、外科

資格

  • 日本消化器外科学会 認定医
  • 日本外科学会 認定医
  • 日本医師会 認定産業医
  • 日本医師会 認定健康スポーツ医

所属学会

医師紹介

医師 大関 美穂

地域の皆様に信頼され、安心して通っていただけるクリニックを目指しています。


地元ながらのリラックスできる雰囲気づくりを心がけ、「話がわかりやすく相談しやすい先生」とのお声をいただくこともあります。


お子様からご高齢の方まで、家族全員の健康を支える“かかりつけ医”として、気軽に相談できる存在でありたいと考えています。

大関 美穂

Miho Ozeki

経歴

在籍日

月、水、金曜日

担当診療科目

内科、消化器科、外科

資格

  • 日本外科学会 外科認定医
  • 日本外科学会 認定登録医
  • 日本医師会 認定産業医

所属学会

医師 大圃 研

高校生まで筑西の地で育ち、20年以上内視鏡治療に従事して参りました。
内視鏡検査は継続がすることが重要です。患者様にとって負担の大きな検査ですので、敬遠されることもありますが、早期発見・早期治療には欠かせない検査です。


患者様がトラウマを抱かず、継続して検査していただけるように、苦痛の少ない内視鏡検査に最善を尽くします。内視鏡検査や胃腸のトラブルなど、お悩み事は遠慮なくお聞かせください。

大圃 研

Ken Ohata

経歴

学歴
  • 平成4年3月 栃木県立栃木高等学校卒業
  • 平成4年4月 日本大学医学部入学
  • 平成10年3月 日本大学医学部卒業
  • 平成31年3月 弘前大学大学院医学研究科博士課程修了博士（医学）取得
  • （弘前大学　甲　第　2056号）、学位論文題目「Efficacy of upper gastrointestinal endoscopic examination to identify patients with obstructive sleep apnea syndrome: a retrospective cross-sectional study」
職歴
  • 平成10年6月 JR東京総合病院　内科研修医
  • 平成12年6月 JR東京総合病院　消化器内科医員
  • 平成17年７月 JR東京総合病院　消化器内科医長
  • 平成19年6月 NTT関東病院　消化器内科医員
  • 平成21年4月 NTT関東病院　消化器内科・内視鏡センター　医長
  • 平成25年4月 NTT関東病院　内視鏡部　部長 / 消化器内科　主任医長
  • 平成31年4月 NTT関東病院　消化管内科　部長　兼　内視鏡部　部長
  • 東京女子医大附属青山病院　消化器内科非常勤講師　（2005年7月～2016年3月）
  • 大連医科大学附属大連市中心医院　消化内鏡二科特聘教授　（2014年1月～現在に至る）
  • 帝京大学附属溝口病院　非常勤講師　（2014年7月～2017年3月）
  • 山東大学附属齊魯医院　消化器内科客員教授（2014年10月～現在に至る）
  • 東京女子医大附属成人医学センター　消化器内科非常勤講師　（2016年4月～2019年）
  • 蘇州市相城区人民病院　消化器内科客員教授（2016年11月～現在に至る）
  • 北京大学附属人民病院　消化器内科客員教授（2016年12月～現在に至る）
  • 東京医科大学病院内視鏡センター　兼任助教（2017年8月～現在に至る）
  • 南昌大学第一附属医院　消化器内科　客員教授（2018年5月～現在に至る）

内視鏡診療の普及や教育活動に力を入れており、アジアを中心に海外でもライブデモやトレーニングコースを開催し、内視鏡診療における教育機関として国内のみならず海外から臨床修練医として実臨床に携わる多くの研修生や見学者を受け入れている。

在籍日

詳しい在籍日についてはお問い合わせください。

担当診療科目

消化器内科、内視鏡科

資格

  • 日本内科学会 認定内科医
  • 日本消化器内視鏡学会 専門医・指導医・関東支部評議員
  • 日本消化管学会 胃腸科専門医

所属学会

賞

2020年度 日本大学医学部同窓会学術奨励賞

特許

  • 特願2019-55564「内視鏡用処置具」 平成31年3月22日に発明者として出願済
  • 特願2019-55565「内視鏡用処置具」 平成31年3月22日に発明者として出願済

研究会

  • EGMR研究会, 世話人
  • 大腸内視鏡スキルアップアカデミー, 世話人
  • LECS研究会, 世話人
  • 大腸検査法検討会, 代表世話人

社会活動

  • 北海道士別市地域医療アドバイザー
  • 一般社団法人日本先端医療技術交流協会 会員

著書

『より上手く！より早く！大圃流ESDセミナー』　
大圃研、港洋平羊土社、２０１６

『良医が語る医療現場のいま』　
大圃研、川田諭、求龍堂

『大圃流　消化器内視鏡の介助・ケア』　
大圃研、港洋平、青木亜由美、佐藤貴幸、志賀拓也羊土社、２０１８

『技師とナースのための消化管内視鏡ハンドブック』　
長廻紘(監修)屋代庫人、大圃研(著者・編集)分光堂、２０１０

『大圃組はやっている！！消化器内視鏡の機器・器具・デバイスはこう使え！』
佐藤貴幸、志賀拓也(著)、港洋平(編集協力)、大圃研(編集)金芳堂、２０１７

『ザ・テキスト大腸ESD』
大圃研（編集）、千葉秀幸（編集）金芳堂、２０１８

『消化器内視鏡 大圃流の基本手技』
大圃研（編集）、港洋平（編集）羊土社、２０２１

『ザ・テキスト 食道・胃・十二指腸ESD』
大圃研（編集）、千葉秀幸（編集）金芳堂、２０２１

論文・業績

Publications
Landmark paper（First or Corresponding）
  1. Long-term Outcomes after Endoscopic Submucosal Dissection for Large Colorectal Epithelial Neoplasms: A Prospective, Multicenter, Cohort Trial from Japan.
    （多施設前向き研究による初めての大腸ESDの長期予後報告、Gastroenterology）
    Ohata K, Kobayashi N, Sakai E, Takeuchi Y, Chino A, Takamaru H, Kodashima S, Hotta K, Harada K, Ikematsu H, Uraoka T, Murakami T, Tsuji S, Abe T, Katagiri A, Hori S, Michida T, Suzuki T, Fukuzawa M, Kiriyama S, Fukase K, Murakami Y, Ishikawa H, Saito Y. Gastroenterology. 2022 Jul 7:S0016-5085(22) Online ahead of print. 
  2. Endoscopic and histological features of Helicobacter pylori-negative differentiated gastric adenocarcinoma arising in the antrum.
    （新しいカテゴリーのHP陰性胃癌を発見）
    Takita M, Ohata K, Inamoto R, Kurebayashi M, Takayanagi S, Kimoto Y, Suzuki Y, Ishii R, Ono K, Negishi R, Minato Y, Sakai E, Muramoto T, Matsuhashi N, Ichihara S.JGH Open. 2021 Mar 2;5(4):470-477. 
  3. Usefulness of training using animal models for colorectal endoscopic submucosal dissection: is experience performing gastric ESD really needed?
    （大腸ESDから始めるESDトレーニングの報告）
    Ohata K, Nonaka K, Misumi Y, Tsunashima H, Takita M, Minato Y, Tashima T, Sakai E, Muramoto T, Matsuyama Y, Hiejima Y, Matsuhashi N.Endosc Int Open. 2016 Mar;4(3):E333-9. 
  4. Feasibility of endoscopy-assisted laparoscopic full-thickness resection for superficial duodenal neoplasms.
    （十二指腸LECS最初の原著報告）
    Ohata K, Murakami M, Yamazaki K, Nonaka K, Misumi N, Tashima T, Minato Y, Shozushima M, Mitsui T, Matsuhashi N, Fu K. ScientificWorldJournal. 2014 Jan 16;2014:239627.
First Author/Co-Author
  1. Long-term Outcomes after Endoscopic Submucosal Dissection for Large Colorectal Epithelial Neoplasms: A Prospective, Multicenter, Cohort Trial from Japan.
    Ohata K, Kobayashi N, Sakai E, Takeuchi Y, Chino A, Takamaru H, Kodashima S, Hotta K, Harada K, Ikematsu H, Uraoka T, Murakami T, Tsuji S, Abe T, Katagiri A, Hori S, Michida T, Suzuki T, Fukuzawa M, Kiriyama S, Fukase K, Murakami Y, Ishikawa H, Saito Y.Gastroenterology. 2022 Jul 7:S0016-5085(22) Online ahead of print.
  2. A specimen collection technique to ensure that the resected specimen is safely retrieved after duodenal ESD.
    Kurebayashi M, Ohata K, Liu B, Tashim T.VideoGIE. 2022 Mar 10;7(7):241-242. 
  3. The feasibility of endoscopic submucosal dissection for colorectal lesions larger than 10 cm.
    Chiba H, Ohata K, Tachikawa J, Yamada K, Okada N, Arimoto J, Ashikari K, Kuwabara H, Nakaoka M, Sakai E, Goto T.Surg Endosc. 2022 Jul;36(7):5348-5355. 
  4. Outcomes of endoscopic submucosal dissection for colorectal neoplasms: Prospective, multicenter, cohort trial.
    Kobayashi N, Takeuchi Y, Ohata K, Igarashi M, Yamada M, Kodashima S, Hotta K, Harada K, Ikematsu H, Uraoka T, Sakamoto N, Doyama H, Abe T, Katagiri A, Hori S, Michida T, Yamaguchi T, Fukuzawa M, Kiriyama S, Fukase K, Murakami Y, Ishikawa H, Saito Y.Dig Endosc. 2022 Jul;34(5):1042-1051.
  5. Outcomes of endoscopic resection for superficial duodenal tumors: 10 years’ experience in 18 Japanese high volume centers.
    Kato M, Takeuchi Y, Hoteya S, Oyama T, Nonaka S, Yoshimizu S, Kakushima N, Ohata K, Yamamoto H, Hara Y, Doyama H, Dohi O, Yamasaki Y, Ueyama H, Takimoto K, Kurahara K, Tashima T, Abe N, Nakayama A, Oda I, Yahagi N.Endoscopy. 2022 Jul;54(7):663-670. 
  6. A technique for safe ulcer floor closure using an over-the-scope clip after endoscopic submucosal dissection of lesions adjacent to the ampulla of Vater.
    Muramoto T, Ohata K, Ishii R, Negishi R, Minato Y, Matsuhashi N.Endoscopy. 2022 Jul;54(7):E374-E375. 
  7. Use of a detachable snare with polyglycolic acid sheets in a simple and novel shielding method for post-endoscopic submucosal dissection ulcers.
    Kimoto Y, Ohata K, Sakai E, Ohno A, Ito T, Tsuji Y, Chiba H.Endoscopy. 2022 Jul;54(7):E389-E390.
  8. Characteristics of colorectal neuroendocrine tumors in patients prospectively enrolled in a Japanese multicenter study: a first report from the C-NET STUDY.
    Sekiguchi M, Hotta K, Takeuchi Y, Tanaka S, Yamamoto H, Shinmura K, Harada K, Uraoka T, Hisabe T, Sano Y, Kondo H, Horimatsu T, Kikuchi H, Kawamura T, Nagata S, Yamamoto K, Tajika M, Tsuji S, Kusaka T, Okuyama Y, Yoshida N, Moriyama T, Hasebe A, So S, Kobara H, Kashida H, Miyanaga R, Kato S, Hayashi Y, Sada M, Fukuzawa M, Kato H, Takayama T, Konishi J, Matsushita HO, Narasaka T, Ohata K, Togashi K, Nakamura H, Moriichi K, Oda Y, Kanda N, Kuwai T, Terai S, Sanomura M, Kitamura S, Miyamoto H, Kiriyama S, Mizuno C, Saito Y, Sekine S, Ito S, Nakahira H, Oka S, Hayashi Y, Yoshimura K, Ishikawa H, Matsuda T; C-NET STUDY Group.J Gastroenterol. 2022. Online ahead of print.
  9. Hemostasis using purse-string reefing with endoscopic clip and endoloop for a huge hematoma after cold snare polypectomy.
    Negishi R, Muramoto T, Ohata K.Dig Endosc. 2022 May;34(4):e68-e70.
  10. Mucosal suturing method after gastric endoscopic submucosal dissection using self-made transparent “cross-hood” attachment.
    Ishii R, Ohata K, Liu B, Negishi R, Minato Y, Muramoto T, Kobayashi M.Endoscopy. 2022. Online ahead of print.
  11. Successful esophageal endoscopic submucosal dissection with intraoperative release of stenosis due to previous endoscopic submucosal dissection scarring.
    Ishii R, Ohata K, Sawada R, Takeuchi N, Kurebayashi M, Inamoto R, Takayanagi S, Kimoto Y, Nohara M, Liu B, Negishi R, Minato Y, Muramoto T.DEN open. 2022 Jan 6;2(1):e87.
  12. Endoscopic submucosal dissection: the first reported experience from a New Zealand centre.
    Schauer CK, Pandey R, Minato Y, Muramoto T, Ohata K, Khan I.N Z Med J. 2022 Feb 25;135(1550):121-132.
  13.  Efficacy and safety of cold snare polypectomy for sessile serrated polyps ≥ 10 mm: A systematic review and meta-analysis.
    Li DF, Van Overbeke L, Ohata K, Wang LS, Yao J.Dig Liver Dis. S1590-8658(22) Online ahead of print.
  14. Safety and Efficacy of Cold Snare Polypectomy Without Submucosal Injection for Large Sessile Serrated Lesions: A Prospective Study.
    Kimoto Y, Sakai E, Inamoto R, Kurebayashi M, Takayanagi S, Hirata T, Suzuki Y, Ishii R, Konishi T, Kanda K, Negishi R, Takita M, Ono K, Minato Y, Muramoto T, Ohata K.Clin Gastroenterol Hepatol. 2022;20(2):e132-e138. 
  15. Successful endoscopic submucosal dissection for a tumor located completely within a colonic diverticulum after inversion of the diverticulum using a traction device.
    Muramoto T, Ohata K, Negishi R, Minato Y, Matsuhashi N.VideoGIE. 2021 Oct 14;6(12):559-561.
  16. A new classification for the diagnosis of superficial non-ampullary duodenal epithelial tumors using endocytoscopy: A prospective study.
    Muramoto T, Ohata K, Sakai E, Inamoto R, Kurebayashi M, Takayanagi S, Kimoto Y, Suzuki Y, Ishii R, Ono K, Negishi R, Takita M, Minato Y, Ohno A, Chiba H, Hashimoto H, Morikawa T, Matsuhashi N.J Gastroenterol Hepatol. 2021 Nov;36(11):3170-3176.
  17. Safety and feasibility of laparoscopic and endoscopic cooperative surgery for duodenal neoplasm: a retrospective multicenter study.
    Nunobe S, Ri M, Yamazaki K, Uraoka M, Ohata K, Kitazono I, Terashima M, Yamagata Y, Tanabe S, Abe N, Tsuji T, Niimi K, Kawakubo H, Tsukada T, Kitashiro S, Ishizuka N, Hiki N; Society for the Study of Laparoscopic Endoscopic Cooperative Surgery.Endoscopy. 2021 Oct;53(10):1065-1068.
  18. A novel endoscopic suturing device after endoscopic full-thickness resection of gastric submucosal tumor.
    Chiba H, Ohata K, Mori H, Kuwabara H, Sato Y, Tsuji Y, Itoh F.Endoscopy. 2021 Sep 8. Online ahead of print.
  19. New techniques in endocytoscopy: submucosal injection heightens the visibility.
    Kimoto Y, Ohata K, Takita M, Minato Y, Muramoto T, Kayashima Y, Koba I.Endoscopy. 2021 Jul;53(7):E245-E246. 
  20. Endoscopic submucosal dissection for colorectal neoplasms in proximity or extending to a diverticulum.
    Muramoto T, Ohata K, Sakai E, Takayanagi S, Kimoto Y, Suzuki Y, Ishii R, Kanda K, Negishi R, Takita M, Minato Y, Tsuji Y, Chiba H, Matsuhashi N.Surg Endosc. 2021 Jul;35(7):3479-3487. 
  21. Endoscopic transcecal appendectomy under laparoscopic single-port assistance.
    Muramoto T, Suzuki Y, Minato Y, Nakajima K, Ohata K.VideoGIE. 2021 Mar 19;6(6):269-271 
  22. Endoscopic resection of the lesion on the inverted appendix using an endoloop.
    Ishii R, Ohata K, Muramoto T.Dig Endosc. 2021 May;33(4):e58-e59.  
  23. Recurrent tumor involving a diverticulum after colonic endoscopic submucosal dissection successfully resected by the double-tunnel method.
    Kurebayashi M, Ohata K, Chiba H, Takita M, Muramoto T, Toriumi F, Sakai E.Endoscopy. 2021 May;53(5):E185-E186
  24. Endoscopic and histological features of Helicobacter pylori-negative differentiated gastric adenocarcinoma arising in the antrum.
    Takita M, Ohata K, Inamoto R, Kurebayashi M, Takayanagi S, Kimoto Y, Suzuki Y, Ishii R, Ono K, Negishi R, Minato Y, Sakai E, Muramoto T, Matsuhashi N, Ichihara S.JGH Open. 2021 Mar 2;5(4):470-477. 
  25. Large duodenal pyloric gland adenoma successfully resected by endoscopic submucosal dissection.
    Takayanagi S, Sakai E, Muramoto T, Hashimoto H, Ohata K.Clin J Gastroenterol. 2021 Apr;14(2):538-541.
  26. Continuous saliva suction tube to prevent aspiration pneumonia during upper GI endoscopy.
    Muramoto T, Aoki A, Suzuki Y, Hishida M, Ohata K.VideoGIE. 2020 Dec 10;6(3):114-115.
  27. Evaluation of colorectal endoscopic submucosal dissection using a multifunctional snare: a prospective clinical feasibility study (with videos).
    Arimoto J, Ohata K, Chiba H, Tachikawa J, Okada N, Kuwabara H, Nakaoka M, Ashikari K, Ishii R, Minato Y, Takita M, Sakai E, Muramoto T, Matsuhashi N, Goto T, Nakajima A.Gastrointest Endosc. 2021 Mar;93(3):671-678.
  28. Simple scoring system for the diagnosis of superficial non-ampullary duodenal epithelial tumors.
    Ishii R, Ohata K, Sakai E, Takita M, Minato Y, Muramoto T, Hashimoto H, Morikawa T, Matsuhashi N.Dig Endosc. 2021 Mar;33(3):399-407.  
  29. Risk factors of delayed bleeding after endoscopic resection of superficial non-ampullary duodenal epithelial tumors and prevention by over-the-scope and conventional clipping.
    Ohata K, Sakai E, Suzuki Y, Takayanagi S, Kurebayashi M, Kimoto Y, Ishii R, Konishi T, Ono K, Hirata T, Kanda K, Takita M, Negishi R, Minato Y, Muramoto T, Satodate H, Taguri M, Matsuhashi N.Dig Endosc. 2021 Mar;33(3):390-398. 
  30. Palisade technique as an effective endoscopic submucosal dissection tool for large colorectal tumors.
    Suzuki Y, Ohata K, Sakai E, Negishi R, Takita M, Minato Y, Muramoto T, Chiba H, Tsuji Y, Matsuhashi N.Endosc Int Open. 2021 Feb;9(2):E210-E215. 
  31. Successful esophageal endoscopic submucosal dissection with a transoral endoscope after stepwise scope bougienage of post-endoscopic submucosal dissection stricture.
    Takita M, Ohata K, Negishi R, Minato Y, Muramoto T.JGH Open. 2020 Oct 22;5(1):163-165
  32. Endoscopic submucosal dissection of large pedunculated polyps with wide stalks: a retrospective multicenter study.
    Chiba H, Tachikawa J, Arimoto J, Ashikari K, Kuwabara H, Nakaoka M, Goto T, Higurashi T, Muramoto T, Ohata K, Nakajima A.Endoscopy. 2021 Jan;53(1):77-80. 
  33. Early gastric cancer detection in high-risk patients: a multicentre randomised controlled trial on the effect of second-generation narrow band imaging.
    Yoshida N, Doyama H, Yano T, Horimatsu T, Uedo N, Yamamoto Y, Kakushima N, Kanzaki H, Hori S, Yao K, Oda I, Katada C, Yokoi C, Ohata K, Yoshimura K, Ishikawa H, Muto M.Gut. 2021 Jan;70(1):67-75.
  34. Near-focus magnification and second-generation narrow-band imaging for early gastric cancer in a randomized trial.
    Kakushima N, Yoshida N, Doyama H, Yano T, Horimatsu T, Uedo N, Yamamoto Y, Kanzaki H, Hori S, Yao K, Oda I, Tanabe S, Yokoi C, Ohata K, Yoshimura K, Ishikawa H, Muto M.J Gastroenterol. 2020 Dec;55(12):1127-1137. 
  35. Successful endoscopic submucosal dissection for a huge lipoma in the terminal ileum.
    Muramoto T, Negishi R, Takita M, Minato Y, Ohata K.VideoGIE. 2020 Oct 4;5(11):575-576.
  36. Delineating sessile serrated adenomas/polyps with acetic acid spray for a more accurate piecemeal cold snare polypectomy.
    Suzuki Y, Ohata K, Matsuhashi N.VideoGIE. 2020 Jul 1;5(11):519-521.
  37. Usefulness of a thin-endoscope endoscopic submucosal dissection using the traction device for early gastric cancer in a patient with esophageal stricture.
    Muramoto T, Suzuki Y, Sakai E, Ohata K.VideoGIE. 2020 May 27;5(8):350-352. 
  38. Traction-assisted colorectal endoscopic submucosal dissection using an endoloop for large semipedunculated lesions.
    Takita M, Sakai E, Muramoto T, Ohata K.Endoscopy. 2020 Aug;52(8):E279-E280.
  39. A simple and cost-effective method: piecemeal cold snare polypectomy without injection for a large sessile serrated lesion ≥20 mm.
    Kimoto Y, Suzuki Y, Sakai E, Ohata K.VideoGIE. 2020 Apr 30;5(7):278-280. 
  40. Usefulness of a handmade distal endoscope attachment with a transparent tape.
    Kurebayashi M, Sakai E, Suzuki Y, Ohata K.VideoGIE. 2020 Mar 31;5(6):226-228.
  41. Endoscopic submucosal dissection with a hand-made traction method for a tumor completely covering the post-appendectomy orifice.
    Muramoto T, Sakai E, Ohata K.Dig Endosc. 2020 May;32(4):e77-e79.
  42. Endoscopic submucosal dissection for multiple gastric superficial adenocarcinomas identified in patient with familial adenomatous polyposis.
    Negishi R, Koizumi K, Ohata K.Dig Endosc. 2020 May;32(4):e57-e58. 
  43. Clinical characteristic of esophageal cancer without lugol-voiding lesions in the background esophagus.
    Kuwabara H, Chiba H, Tachikawa J, Okada N, Ashikari K, Arimoto J, Nakaoka M, Sakai E, Goto T, Ohata K.Dig Endosc. 2020 May;32(4):621-627. 
  44. Endoscopic full-thickness resection for esophageal submucosal tumor.
    Muramoto T, Sakai E, Ohata K.Dig Endosc. 2020 Mar;32(3):e43-e44.
  45. Thin-endoscope endoscopic submucosal dissection for early esophageal cancer with postoperative stricture.
    Muramoto T, Sakai E, Ohata K.Dig Endosc. 2020 Jan;32(1):e11-e12.
  46. Endoscopic submucosal dissection for superficial hypopharyngeal cancer with thin endoscope.
    Muramoto T, Sakai E, Ohata K.Dig Endosc. 2020 Jan;32(1):e13-e14. 
  47. Predictive Factors of Mild and Severe Fibrosis in Colorectal Endoscopic Submucosal Dissection.
    Chiba H, Tachikawa J, Arimoto J, Ashikari K, Kuwabara H, Nakaoka M, Goto T, Ohata K, Nakajima A.Dig Dis Sci. 2020 Jan;65(1):232-242. 
  48. Stepwise scope bougienage for esophageal stricture after endoscopic submucosal dissection for circumferential lesions.
    Takita M, Sakai E, Ohata K.Dig Endosc. 2019 Nov;31(6):719.
  49. Non-occlusive mesenteric ischemia induced by a polyethylene glycol with ascorbate-based colonic bowel preparation.
    Ishii R, Sakai E, Nakajima K, Matsuhashi N, Ohata K.Clin J Gastroenterol. 2019 Oct;12(5):403-406. 
  50. Mucosal Schwann Cell Hamartoma of the Rectosigmoid Junction: A Rare Lesion Mimicking Mucosal Prolapse Syndrome and Other Neural Lesions.
    Hashimoto H, Usui G, Sakai E, Ohata K, Morikawa T.Int J Surg Pathol. 2019 Aug;27(5):515-517. 
  51. Atypical Endoscopic Findings of Rectal Perineurioma.
    Negishi R, Sakai E, Ohata K.Intern Med. 2019 Jul 15;58(14):2113-2115. 
  52. Endoscopic tissue shielding to prevent bleeding after endoscopic submucosal dissection: a prospective multicenter randomized controlled trial.
    Kataoka Y, Tsuji Y, Hirasawa K, Takimoto K, Wada T, Mochizuki S, Ohata K, Sakaguchi Y, Niimi K, Ono S, Kodashima S, Yamamichi N, Fujishiro M, Koike K.Endoscopy. 2019 Jul;51(7):619-627.
  53. Efficacy and safety of 0.6% sodium alginate solution in endoscopic submucosal dissection for esophageal and gastric neoplastic lesion: A randomized controlled study.
    Uemura N, Oda I, Saito Y, Ono H, Fujisaki J, Matsuhashi N, Ohata K, Yahagi N, Yada T, Satoh M, Tajiri H, Inomata M, Kitano S.Dig Endosc. 2019 Jul;31(4):396-404. 
  54. Diagnosis and therapeutic strategies for small bowel vascular lesions.
    Sakai E, Ohata K, Nakajima A, Matsuhashi N.World J Gastroenterol. 2019 Jun 14;25(22):2720-2733. 
  55. Conscious transnasal hybrid endoscopic submucosal dissection enables safe and painless en bloc resection in elderly patients with early gastric cancer.
    Minato Y, Sakai E, Ohata K.VideoGIE. 2019 Feb 16;4(4):157-158. 
  56. Delayed Bleeding After Colorectal Endoscopic Submucosal Dissection: When Is Emergency Colonoscopy Needed?
    Chiba H, Ohata K, Tachikawa J, Arimoto J, Ashikari K, Kuwabara H, Nakaoka M, Goto T, Nakajima A.Dig Dis Sci. 2019 Mar;64(3):880-887.
  57. Clinical Outcomes of Patients with Small Rectal Neuroendocrine Tumors Treated Using Endoscopic Submucosal Resection with a Ligation Device.
    Takita M, Sakai E, Nakao T, Kimoto Y, Ishii R, Konishi T, Ueno S, Kanda K, Negishi R, Muramoto T, Hashimoto H, Morikawa T, Matsuhashi N, Ohata K.Digestion. 2019;99(1):72-78.
  58. Efficacy of Upper Gastrointestinal Endoscopic Examination to Identify Patients with Obstructive Sleep Apnea Syndrome: A Retrospective Cross-Sectional Study.
    Ohata K, Sakai E, Nakao T, Kimoto Y, Ishii R, Konishi T, Ueno S, Takita M, Negishi R, Morinushi T, Muramoto T, Matsuhashi N, Nakaya T, Koba I, Nakaji S.Digestion. 2019;99(3):252-259. 
  59. Expression of Gastric Markers Is Associated with Malignant Potential of Nonampullary Duodenal Adenocarcinoma.
    Minatsuki C, Yamamichi N, Inada KI, Takahashi Y, Sakurai K, Shimamoto T, Tsuji Y, Shiogama K, Kodashima S, Sakaguchi Y, Niimi K, Ono S, Niwa T, Ohata K, Matsuhashi N, Ichinose M, Fujishiro M, Tsutsumi Y, Koike K.Dig Dis Sci. 2018 Oct;63(10):2617-2625. 
  60. Rare case of severe acute pancreatitis following over-the-scope clip-assisted duodenal endoscopic mucosal resection using a cap-fitted endoscope in a patient with pancreas divisum.
    Tashima T, Ryozawa S, Ohata K.Dig Endosc. 2018 Sep;30(5):679. 
  61. Double-tunnel method for treatment of colorectal lesions with severe fibrosis with endoscopic submucosal dissection.
    Chiba H, Ohata K, Takita M, Tachikawa J, Ashikari K, Goto T, Nakajima A.Endoscopy. 2018 Jul;50(7):E168-E169.
  62. Hamartomatous inverted polyp of the sigmoid colon: A case demonstrating its immunohistochemical characteristics.
    Hashimoto H, Negishi R, Ohata K, Horiuchi H.Pathol Int. 2018 Jul;68(7):439-441. 
  63. Efficacy of an over-the-scope clip for preventing adverse events after duodenal endoscopic submucosal dissection: a prospective interventional study.
    Tashima T, Ohata K, Sakai E, Misumi Y, Takita M, Minato Y, Matsuyama Y, Muramoto T, Satodate H, Horiuchi H, Matsuhashi N, Nonaka K, Ryozawa S.Endoscopy. 2018 May;50(5):487-496.
  64. Usefulness of a multifunctional snare designed for colorectal hybrid endoscopic submucosal dissection (with video).
    Ohata K, Muramoto T, Minato Y, Chiba H, Sakai E, Matsuhashi N.Endosc Int Open. 2018 Feb;6(2):E249-E253.
  65. Endoscopic submucosal dissection for laterally spreading tumors involving the appendiceal orifice.
    Tashima T, Ohata K, Nonaka K, Sakai E, Minato Y, Horiuchi H, Matsuhashi N.Surg Endosc. 2017 Dec;31(12):5444-5450. 
  66. Successful endoscopic submucosal dissection of colon cancer with severe fibrosis after tattooing.
    Chiba H, Tachikawa J, Kurihara D, Ashikari K, Takahashi A, Kuwabara H, Nakaoka M, Morohashi T, Goto T, Ohata K, Nakajima A.Clin J Gastroenterol. 2017 Oct;10(5):426-430. 
  67. Safety and efficacy of simultaneous colorectal ESD for large synchronous colorectal lesions.
    Chiba H, Tachikawa J, Kurihara D, Ashikari K, Goto T, Takahashi A, Sakai E, Ohata K, Nakajima A.Endosc Int Open. 2017 Jul;5(7):E595-E602. 
  68. Management of early gastric cancer with positive horizontal or indeterminable margins after endoscopic submucosal dissection: multicenter survey.
    Ishii N, Omata F, Fujisaki J, Hirasawa T, Kaise M, Hoteya S, Tanabe S, Ishido K, Ohata K, Takita M, Mine T, Igarashi M, Yoshida T, Takeda Y, Furumoto Y, Matsumoto K, Yahagi N, Nakashima H, Wada T, Tagata T, Mitsunaga A.Endosc Int Open. 2017 May;5(5):E354-E362.
  69. Standardization of endoscopic resection for colorectal tumors larger than 10 mm in diameter.
    Oka S, Uraoka T, Tamai N, Ikematsu H, Chino A, Okamoto K, Takeuchi Y, Imai K, Ohata K, Shiga H, Raftopoulos S, Lee BI, Matsuda T.Dig Endosc. 2017 Apr;29 Suppl 2:40-44. 
  70. Balloon overtube can improve maneuverability of the endoscope during colorectal endoscopic submucosal dissection.
    Ohata K, Sakai E, Richard Ohya T.Dig Endosc. 2017 Apr;29 Suppl 2:68-69. 
  71. Effects of rikkunshito on quality of life in patients with gastroesophageal reflux disease refractory to proton pump inhibitor therapy.
    Kawai T, Hirayama Y, Oguchi A, Ishii F, Matushita M, Kitayama N, Morishita S, Hiratsuka N, Ohata K, Konishi H, Kishino M, Nakamura S.J Clin Biochem Nutr. 2017 Mar;60(2):143-145. 
  72. Surveillance of patients with long-segment Barrett’s esophagus: A multicenter prospective cohort study in Japan.
    Matsuhashi N, Sakai E, Ohata K, Ishimura N, Fujisaki J, Shimizu T, Iijima K, Koike T, Endo T, Kikuchi T, Inayoshi T, Amano Y, Furuta T, Haruma K, Kinoshita Y.J Gastroenterol Hepatol. 2017 Feb;32(2):409-414.
  73. Endoscopic Submucosal Dissection of Superficial Esophageal Neoplasms Is Feasible and Not Riskier for Patients with Liver Cirrhosis.
    Tsou YK, Liu CY, Fu KI, Lin CH, Lee MS, Su MY, Ohata K, Chiu CT.Dig Dis Sci. 2016 Dec;61(12):3565-3571. 
  74. Large superficial tumor extending to the appendiceal orifice removed by endoscopic submucosal dissection.
    Takita M, Ohata K, Sakai E, Matsuhashi N.VideoGIE. 2016 Aug 31;1(2):38-39.
  75. Novel technique of endoscopic full-thickness resection for superficial nonampullary duodenal neoplasms to avoid intraperitoneal tumor dissemination.
    Ohata K, Nonaka K, Sakai E, Minato Y, Satodate H, Watanabe K, Matsuhashi N.Endosc Int Open. 2016 Jul;4(7):E784-7. 
  76. TP53 mutation at early stage of colorectal cancer progression from two types of laterally spreading tumors.
  77. Sakai E, Fukuyo M, Matsusaka K, Ohata K, Doi N, Takane K, Matsuhashi N, Fukushima J, Nakajima A, Kaneda A.Cancer Sci. 2016 Jun;107(6):820-7. 
  78. Genetic and epigenetic aberrations occurring in colorectal tumors associated with serrated pathway.
    Sakai E, Fukuyo M, Ohata K, Matsusaka K, Doi N, Mano Y, Takane K, Abe H, Yagi K, Matsuhashi N, Fukushima J, Fukayama M, Akagi K, Aburatani H, Nakajima A, Kaneda A.Int J Cancer. 2016 Apr 1;138(7):1634-44. 
  79. Usefulness of training using animal models for colorectal endoscopic submucosal dissection: is experience performing gastric ESD really needed?
    Ohata K, Nonaka K, Misumi Y, Tsunashima H, Takita M, Minato Y, Tashima T, Sakai E, Muramoto T, Matsuyama Y, Hiejima Y, Matsuhashi N.Endosc Int Open. 2016 Mar;4(3):E333-9. 
  80. Development of a new classification for in vivo diagnosis of duodenal epithelial tumors with confocal laser endomicroscopy: A pilot study.
    Nonaka K, Ohata K, Ichihara S, Ban S, Hiejima Y, Minato Y, Tashima T, Matsuyama Y, Takita M, Matsuhashi N, Takasugi R, Neumann H.Dig Endosc. 2016 Mar;28(2):186-93. 
  81. Esophageal Endoscopic Submucosal Dissection Assisted by an Overtube with a Traction Forceps: An Animal Study.
    Ohata K, Fu K, Sakai E, Nonaka K, Tashima T, Minato Y, Ohno A, Ito T, Tsuji Y, Chiba H, Yamawaki M, Hemmi H, Nakaya T, Fukushima J, Matsuhashi N.Gastroenterol Res Pract. 2016;2016:3186168.
  82. Usefulness of confocal laser endomicroscopy for the diagnosis of ileocecal lymphoma.
    Takita M, Ohata K, Nonaka K, Ban S, Matsuhashi N.Endoscopy. 2016;48 Suppl 1:E164-5. 
  83. Perforation during esophageal submucosal dissection resulting from idiopathic partial muscular defect.
    Tashima T, Ohata K, Sakai E, Minato Y, Chiba H, Nonaka K, Matsuhashi N.Endoscopy. 2016;48 Suppl 1 UCTN:E84-5. 
  84. Histopathological confirmation of similar intramucosal distribution of fluorescein in both intravenous administration and local mucosal application for probe-based confocal laser endomicroscopy of the normal stomach.
    Nonaka K, Ohata K, Ban S, Ichihara S, Takasugi R, Minato Y, Tashima T, Matsuyama Y, Takita M, Matsuhashi N, Neumann H.World J Clin Cases. 2015 Dec 16;3(12):993-9. 
  85. Confocal laser endomicroscopic and magnifying narrow-band imaging findings of gastric mucosa-associated lymphoid tissue lymphoma.
    Nonaka K, Ohata K, Ban S, Takita M, Minato Y, Matsuhashi N.Endoscopy. 2015;47 Suppl 1:E641-2. 
  86. A case of delayed bleeding after endoscopic submucosal dissection for completely circumferential esophageal cancer.
    Chiba H, Ashikari K, Takahashi A, Goto T, Ohata K, Matsuhashi N, Nakajima A.Endoscopy. 2015;47 Suppl 1 UCTN:E385-6.
  87. In vivo imaging of duodenal follicular lymphoma with confocal laser endomicroscopy.
    Nonaka K, Ohata K, Ban S, Takita M, Matsuyama Y, Tashima T, Minato Y, Matsuhashi N.Endoscopy. 2015;47 Suppl 1 UCTN:E16-7.
  88. Efficacy and safety of endoscopic interventions using the short double-balloon endoscope in patients after incomplete colonoscopy.
    Hotta K, Katsuki S, Ohata K, Abe T, Endo M, Shimatani M, Nagaya T, Kusaka T, Matsuda T, Uraoka T, Yamaguchi Y, Murakami Y, Saito Y.Dig Endosc. 2015 Jan;27(1):95-8.
  89. Methylation epigenotypes and genetic features in colorectal laterally spreading tumors.
    Sakai E, Ohata K, Chiba H, Matsuhashi N, Doi N, Fukushima J, Endo H, Takahashi H, Tsuji S, Yagi K, Matsusaka K, Aburatani H, Nakajima A, Kaneda A.Int J Cancer. 2014 Oct 1;135(7):1586-95.
  90. Probe-based confocal laser endomicroscopy of the duodenal mucosa with fluorescein dispersion.
    Nonaka K, Ohata K, Nakai Y.Dig Endosc. 2014 Jul;26(4):604.
  91. Antithrombotic drug does not affect the positive predictive value of an immunochemical fecal occult blood test.
    Tsuji Y, Gunji T, Sato H, Ono A, Ito T, Ohata K, Yamamichi N, Fujishiro M, Matsuhashi N, Koike K.Dig Endosc. 2014 May;26(3):424-9. 
  92. Is narrow-band imaging useful for histological evaluation of gastric mucosa-associated lymphoid tissue lymphoma after treatment?
    Nonaka K, Ohata K, Matsuhashi N, Shimizu M, Arai S, Hiejima Y, Kita H.Dig Endosc. 2014 May;26(3):358-64. 
  93. Systematic review and meta-analysis of endoscopic submucosal dissection versus transanal endoscopic microsurgery for large noninvasive rectal lesions.
    Arezzo A, Passera R, Saito Y, Sakamoto T, Kobayashi N, Sakamoto N, Yoshida N, Naito Y, Fujishiro M, Niimi K, Ohya T, Ohata K, Okamura S, Iizuka S, Takeuchi Y, Uedo N, Fusaroli P, Bonino MA, Verra M, Morino M.Surg Endosc. 2014 Feb;28(2):427-38.
  94. Feasibility of endoscopy-assisted laparoscopic full-thickness resection for superficial duodenal neoplasms.
    Ohata K, Murakami M, Yamazaki K, Nonaka K, Misumi N, Tashima T, Minato Y, Shozushima M, Mitsui T, Matsuhashi N, Fu K.ScientificWorldJournal. 2014 Jan 16;2014:239627. 
  95. Status of the gastric mucosa with endoscopically diagnosed gastrointestinal stromal tumor.
    Nonaka K, Ban S, Hiejima Y, Narita R, Shimizu M, Aikawa M, Ohata K, Matsuhashi N, Arai S, Kita H.Diagn Ther Endosc. 2014;2014:429761. doi: 10.1155/2014/429761. Epub 2014 Jul 2.PMID: 25104899
  96. Early colon cancer presenting as intussusception and successfully treated using endoscopic submucosal dissection.
    Chiba H, Takahashi A, Inamori M, Goto T, Ohata K, Matsuhashi N, Nakajima A.Endoscopy. 2014;46 Suppl 1 UCTN:E326-7.
  97. Endoscopic tissue shielding method with polyglycolic acid sheets and fibrin glue to cover wounds after colorectal endoscopic submucosal dissection (with video).
    Tsuji Y, Ohata K, Gunji T, Shozushima M, Hamanaka J, Ohno A, Ito T, Yamamichi N, Fujishiro M, Matsuhashi N, Koike K.Gastrointest Endosc. 2014 Jan;79(1):151-5. 
  98. Shiitake mushroom-induced ileus managed using double-balloon enteroscopy.
    Shozushima M, Ohata K, Nonaka K, Matsuhashi N.Endoscopy. 2013;45 Suppl 2 UCTN:E437.
  99. Endoscopic submucosal dissection for large colorectal tumor in a Japanese general hospital.
    Ohata K, Nonaka K, Minato Y, Misumi Y, Tashima T, Shozushima M, Mitsui T, Matsuhashi N.J Oncol. 2013;2013:218670. 
  100. Magnifying endoscopy with narrow-band imaging helps determine the management of gastric adenomas.
    Tsuji Y, Ohata K, Sekiguchi M, Ohno A, Ito T, Chiba H, Gunji T, Fukushima J, Yamamichi N, Fujishiro M, Matsuhashi N, Koike K.Gastric Cancer. 2012 Oct;15(4):414-8.
  101. Effective training system in colorectal endoscopic submucosal dissection.
    Ohata K, Ito T, Chiba H, Tsuji Y, Matsuhashi N.Dig Endosc. 2012 May;24 Suppl 1:84-9. 
  102. Current status of colorectal endoscopic submucosal dissection in Japan and other Asian countries: progressing towards technical standardization.
    Saito Y, Kawano H, Takeuchi Y, Ohata K, Oka S, Hotta K, Okamoto K, Homma K, Uraoka T, Hisabe T, Chang DK, Zhou PH.Dig Endosc. 2012 May;24 Suppl 1:67-72. 
  103. Prospective controlled study on the effects of polyethylene glycol in capsule endoscopy.
    Ito T, Ohata K, Ono A, Chiba H, Tsuji Y, Sato H, Matsuhashi N.World J Gastroenterol. 2012 Apr 21;18(15):1789-92.
  104.  A multicenter, prospective trial of total colonoscopy using a short double-balloon endoscope in patients with previous incomplete colonoscopy.
    Hotta K, Katsuki S, Ohata K, Abe T, Endo M, Shimatani M, Nagaya T, Kusaka T, Matsuda T, Uraoka T, Yamaguchi Y, Murakami Y, Saito Y.Gastrointest Endosc. 2012 Apr;75(4):813-8. 
  105. A multicenter survey of the management after gastric endoscopic submucosal dissection related to postoperative bleeding.
    Goto O, Fujishiro M, Oda I, Kakushima N, Yamamoto Y, Tsuji Y, Ohata K, Fujiwara T, Fujiwara J, Ishii N, Yokoi C, Miyamoto S, Itoh T, Morishita S, Gotoda T, Koike K.Dig Dis Sci. 2012 Feb;57(2):435-9.
  106. Is it worthwhile to perform capsule endoscopy for asymptomatic patients with positive immunochemical faecal occult blood test?
    Chiba H, Sekiguchi M, Ito T, Tsuji Y, Ohata K, Ohno A, Umezawa S, Takeuchi S, Hisatomi K, Teratani T, Matsuhashi N, Endo H, Inamori M, Nakajima A.Dig Dis Sci. 2011 Dec;56(12):3459-62.
  107. Serrated adenoma of the inverted vermiform appendix showing a gigantic pedunculated polyp-like appearance.
    Tsuji Y, Ohata K, Ito T, Chiba H, Matsuhashi N.Dig Endosc. 2011 Apr;23(2):205. 
  108. Novel endoscopic technique for the diagnosis of early gastric cancer: endoscopy with crystal violet staining.
    Ohata K, Misaka R, Ito T, Chiba H, Tsuji Y, Yamawaki M, Ohya T, Inamori M, Nakajima A, Matsuhashi N.Digestion. 2011;84(1):60-1.
  109. Diagnosis of small bowel carcinoma by capsule endoscopy.
    Tsuji Y, Ohata K, Umezawa S, Takeuchi S, Sekiguchi M, Ohno A, Ito T, Chiba H, Yamawaki M, Hisatomi K, Teratani T, Matsuhashi N.Gan To Kagaku Ryoho. 2010 Aug;37(8):1440-5.
  110. Risk factors for bleeding after endoscopic submucosal dissection for gastric lesions.
    Tsuji Y, Ohata K, Ito T, Chiba H, Ohya T, Gunji T, Matsuhashi N.World J Gastroenterol. 2010 Jun 21;16(23):2913-7. 
  111. A prospective randomized trial of lafutidine vs rabeprazole on post-ESD gastric ulcers.
    Ohya TR, Endo H, Kawagoe K, Yanagawa T, Hanawa K, Ohata K, Asayama M, Hisatomi K, Teratani T, Gunji T, Sato H, Matsuhashi N.World J Gastrointest Endosc. 2010 Jan 16;2(1):36-40. 
  112. New technique for picking up large colorectal tumors during endoscopic submucosal dissection.
    Chiba H, Ohata K, Sekino Y, Ito T, Tsuji Y, Ohya T, Inamori M, Nakajima A, Matsuhashi N.Digestion. 2010;82(1):66-7.  
  113. Balloon overtube-guided colorectal endoscopic submucosal dissection.
    Ohya T, Ohata K, Sumiyama K, Tsuji Y, Koba I, Matsuhashi N, Tajiri H.World J Gastroenterol. 2009 Dec 28;15(48):6086-90.
  114. A patient with recurrent sigmoid colon cancer in whom pleural effusion and ascites resolved after FOLFOX 4 therapy.
    Akamatsu M, Tsuji Y, Nakata W, Ohmae T, Ohata K, Matsubara S, Katamoto T.Gan To Kagaku Ryoho. 2007 Dec;34(13):2305-7.
  115. Amebic colitis in asymptomatic subjects with positive fecal occult blood test results: clinical features different from symptomatic cases.
    Okamoto M, Kawabe T, Ohata K, Togo G, Hada T, Katamoto T, Tanno M, Matsumura M, Yamaji Y, Watabe H, Ikenoue T, Yoshida H, Omata M.Am J Trop Med Hyg. 2005 Nov;73(5):934-5.

メディア情報

テレビ出演

情熱大陸2016

ここまで治る未来医療のフロンティア
2025年7月27日

未来世紀ジパング
2025年8月13日

予約殺到!スゴ腕の専門外来SP
2018年11月28日

よじごじDays『密着!内視鏡治療のスーパードクター』
2018年2月22日

新聞・雑誌

医師 根岸 良充

NTT東日本関東病院消化管内科に６年間在籍し、大圃研先生の元で内視鏡治療に取り組んで参りました。


不安を抱く患者様が多い内視鏡検査だからこそ、丁寧な説明とコミュニケーション、鎮静剤の使用、検査中の患者様の状態を把握し、快適に検査を受けられるように努めます。第2、4火曜日に勤務しております。胃腸のお悩みもお気軽にご相談ください。

根岸 良充

Ryoju Negishi

経歴

在籍日

第2、4火曜日

担当診療科目

消化器内科、内視鏡科

資格

  • 日本内科学会 認定内科医
  • 日本消化器内視鏡学会 専門医

所属学会

論文・業績

  1. Liver injury and hepatic encephalopathy induced by the herbal medicine Hochuekkito.
    Negishi R, Ichikawa T, Tawa Y, Fujimura A, Tanaka S, Tenmoku A, Akazawa K, Kanno M, Sasaki H, Okubo S, Machida N, Fukuda Y, Oi I, Fujino MA.
    Nihon Shokakibyo Gakkai Zasshi. 2014 Jun;111(6):1149-56.
  2. Early Prediction of the Outcome Using Tumor Markers and mRECIST in Unresectable Hepatocellular Carcinoma Patients Who Underwent Transarterial Chemoembolization.
    Ichikawa T, Machida N, Sasaki H, Tenmoku A, Kaneko H, Negishi R, Oi I, Fujino MA.
    Oncology. 2016;91(6):317-330. doi: 10.1159/000448999. Epub 2016 Oct 27.
  3. Hamartomatous inverted polyp of the sigmoid colon: A case demonstrating its immunohistochemical characteristics.
    Hashimoto H, Negishi R, Ohata K, Horiuchi H.
    Pathol Int. 2018 Jul;68(7):439-441. doi: 10.1111/pin.12658. Epub 2018 Mar 23.
  4. Efficacy of Upper Gastrointestinal Endoscopic Examination to Identify Patients with Obstructive Sleep Apnea Syndrome: A Retrospective Cross-Sectional Study.
    Ohata K, Sakai E, Nakao T, Kimoto Y, Ishii R, Konishi T, Ueno S, Takita M, Negishi R, Morinushi T, Muramoto T, Matsuhashi N, Nakaya T, Koba I, Nakaji S.
    Digestion. 2019;99(3):252-259. doi: 10.1159/000491385. Epub 2018 Sep 4.
  5. Clinical Outcomes of Patients with Small Rectal Neuroendocrine Tumors Treated Using Endoscopic Submucosal Resection with a Ligation Device.
    Takita M, Sakai E, Nakao T, Kimoto Y, Ishii R, Konishi T, Ueno S, Kanda K, Negishi R, Muramoto T, Hashimoto H, Morikawa T, Matsuhashi N, Ohata K.
    Digestion. 2019;99(1):72-78. doi: 10.1159/000494416. Epub 2018 Dec 14.
  6. Atypical Endoscopic Findings of Rectal Perineurioma.
    Negishi R, Sakai E, Ohata K.
    Intern Med. 2019 Jul 15;58(14):2113-2115. doi: 10.2169/internalmedicine.2316-18. Epub 2019 Apr 17.PMID: 30996167 
  7. Endoscopic submucosal dissection for multiple gastric superficial adenocarcinomas identified in patient with familial adenomatous polyposis.
    Negishi R, Koizumi K, Ohata K.
    Dig Endosc. 2020 May;32(4):e57-e58. doi: 10.1111/den.13607. Epub 2020 Feb 
  8. Risk factors of delayed bleeding after endoscopic resection of superficial non-ampullary duodenal epithelial tumors and prevention by over-the-scope and conventional clipping.
    Ohata K, Sakai E, Suzuki Y, Takayanagi S, Kurebayashi M, Kimoto Y, Ishii R, Konishi T, Ono K, Hirata T, Kanda K, Takita M, Negishi R, Minato Y, Muramoto T, Satodate H, Taguri M, Matsuhashi N.
    Dig Endosc. 2021 Mar;33(3):390-398. doi: 10.1111/den.13729. Epub 2020 Jun 26.
  9. Endoscopic submucosal dissection for colorectal neoplasms in proximity or extending to a diverticulum.
    Muramoto T, Ohata K, Sakai E, Takayanagi S, Kimoto Y, Suzuki Y, Ishii R, Kanda K, Negishi R, Takita M, Minato Y, Tsuji Y, Chiba H, Matsuhashi N.
    Surg Endosc. 2021 Jul;35(7):3479-3487. doi: 10.1007/s00464-020-07795-y. Epub 2020 Jul 15.
  10. Safety and Efficacy of Cold Snare Polypectomy Without Submucosal Injection for Large Sessile Serrated Lesions: A Prospective Study.
    Kimoto Y, Sakai E, Inamoto R, Kurebayashi M, Takayanagi S, Hirata T, Suzuki Y, Ishii R, Konishi T, Kanda K, Negishi R, Takita M, Ono K, Minato Y, Muramoto T, Ohata K.Clin 
    Gastroenterol Hepatol. 2022 Feb;20(2):e132-e138. doi: 10.1016/j.cgh.2020.10.053. Epub 2020 Nov 2.
  11. Successful endoscopic submucosal dissection for a huge lipoma in the terminal ileum.
    Muramoto T, Negishi R, Takita M, Minato Y, Ohata K.
    VideoGIE. 2020 Oct 4;5(11):575-576. doi: 10.1016/j.vgie.2020.05.036. eCollection 2020 Nov.
  12. Successful esophageal endoscopic submucosal dissection with a transoral endoscope after stepwise scope bougienage of post-endoscopic submucosal dissection stricture.
    Takita M, Ohata K, Negishi R, Minato Y, Muramoto T.
    JGH Open. 2020 Oct 22;5(1):163-165. doi: 10.1002/jgh3.12437. eCollection 2021 Jan.
  13. Palisade technique as an effective endoscopic submucosal dissection tool for large colorectal tumors.
    Suzuki Y, Ohata K, Sakai E, Negishi R, Takita M, Minato Y, Muramoto T, Chiba H, Tsuji Y, Matsuhashi N.Endosc Int Open. 2021 Feb;9(2):E210-E215. doi: 10.1055/a-1313-7026. Epub 2021 Feb 3.
  14. Endoscopic and histological features of Helicobacter pylori-negative differentiated gastric adenocarcinoma arising in the antrum.
    Takita M, Ohata K, Inamoto R, Kurebayashi M, Takayanagi S, Kimoto Y, Suzuki Y, Ishii R, Ono K, Negishi R, Minato Y, Sakai E, Muramoto T, Matsuhashi N, Ichihara S.
    JGH Open. 2021 Mar 2;5(4):470-477. doi: 10.1002/jgh3.12518. eCollection 2021 Apr.
  15. A new classification for the diagnosis of superficial non-ampullary duodenal epithelial tumors using endocytoscopy: A prospective study.
    Muramoto T, Ohata K, Sakai E, Inamoto R, Kurebayashi M, Takayanagi S, Kimoto Y, Suzuki Y, Ishii R, Ono K, Negishi R, Takita M, Minato Y, Ohno A, Chiba H, Hashimoto H, Morikawa T, Matsuhashi 
    N.J Gastroenterol Hepatol. 2021 Nov;36(11):3170-3176. doi: 10.1111/jgh.15585. Epub 2021 Jun 28.
  16. A technique for safe ulcer floor closure using an over-the-scope clip after endoscopic submucosal dissection of lesions adjacent to the ampulla of Vater.
    Muramoto T, Ohata K, Ishii R, Negishi R, Minato Y, Matsuhashi N.
    Endoscopy. 2022 Jul;54(7):E374-E375. doi: 10.1055/a-1541-7381. Epub 2021 Aug 9.
  17. Successful endoscopic submucosal dissection for a tumor located completely within a colonic diverticulum after inversion of the diverticulum using a traction device.
    Muramoto T, Ohata K, Negishi R, Minato Y, Matsuhashi N.
    VideoGIE. 2021 Oct 14;6(12):559-561. doi: 10.1016/j.vgie.2021.09.005. eCollection 2021 Dec.
  18. Hemostasis using purse-string reefing with endoscopic clip and endoloop for a huge hematoma after cold snare polypectomy.
    Negishi R, Muramoto T, Ohata K.
    Dig Endosc. 2022 May;34(4):e68-e70. doi: 10.1111/den.14263. Epub 2022 Mar 18.
  19. Successful esophageal endoscopic submucosal dissection with intraoperative release of stenosis due to previous endoscopic submucosal dissection scarring.
    Ishii R, Ohata K, Sawada R, Takeuchi N, Kurebayashi M, Inamoto R, Takayanagi S, Kimoto Y, Nohara M, Liu B, Negishi R, Minato Y, Muramoto T.
    DEN Open. 2022 Jan 6;2(1):e87. doi: 10.1002/deo2.87. eCollection 2022 Apr.
  20. Mucosal suturing method after gastric endoscopic submucosal dissection using self-made transparent “cross-hood” attachment.
    Ishii R, Ohata K, Liu B, Negishi R, Minato Y, Muramoto T, Kobayashi M.
    Endoscopy. 2022 Dec;54(S 02):E773-E775. doi: 10.1055/a-1806-1742. Epub 2022 Apr 8.
  21. A case of early esophageal cancer with pharyngeal stenosis treated by endoscopic submucosal multi-tunnel dissection using an ultra-thin endoscope.
    Ono K, Ohata K, Kimoto Y, Ishii R, Negishi R, Minato Y, Muramoto T.
    Endoscopy. 2023 Dec;55(S 01):E1-E2. doi: 10.1055/a-1899-8441. Epub 2022 Sep 1.
  22. Superficial nonampullary duodenal epithelial tumor: a rare case with signet-ring cell carcinoma component diagnosed by magnifying endoscopy.
    Muramoto T, Ohata K, Takayanagi S, Kimoto Y, Ishii R, Negishi R, Minato Y.Endoscopy. 2023 Dec;55(S 01):E90-E91. doi: 10.1055/a-1931-4105. Epub 2022 Oct 10.
  23. Early gastric mixed neuroendocrine-non-neuroendocrine neoplasms with endoscopic findings of neuroendocrine cell carcinoma components exposed on the mucosal surface: a case report.
    Ito Y, Kimoto Y, Sawada R, Nagae S, Furuta K, Takeuchi N, Takayanagi S, Kano Y, Ishii R, Sakuno T, Ono K, Negishi R, Minato Y, Muramoto T, Ohata K.
    J Med Case Rep. 2022 Nov 14;16(1):416. doi: 10.1186/s13256-022-03657-4.
  24. Endoscopic strictureplasty for severe colonic anastomotic stricture.
    Takayanagi S, Ohata K, Kimoto Y, Ishii R, Negishi R, Minato Y, Nakajima K.
    Endoscopy. 2023 Dec;55(S 01):E301-E302. doi: 10.1055/a-1982-3756. Epub 2022 Dec 13.
  25. Gastric-type duodenal neoplasms with rapid growth: A report of two cases.
    Sawada R, Kimoto Y, Furuta K, Nagae S, Ito Y, Takeuchi N, Takayanagi S, Kano Y, Ishii R, Sakuno T, Negishi R, Ono K, Minato Y, Muramoto T, Hashimoto H, Morikawa T, Ohata K.
    DEN Open. 2022 Dec 23;3(1):e197. doi: 10.1002/deo2.197. eCollection 2023 Apr.
  26. Endoscopic submucosal dissection using an ultrathin endoscope for superficial pharyngeal cancer: a prospective feasibility study (with video).
    Muramoto T, Ohata K, Sakai E, Sawada R, Takeuchi N, Inamoto R, Kurebayashi M, Takayanagi S, Kimoto Y, Ishii R, Nohara M, Liu B, Ono K, Negishi R, Minato Y, Chiba H, Matsuhashi N.
    Endosc Int Open. 2023 Jan 4;11(1):E3-E10. doi: 10.1055/a-1968-7501. eCollection 2023 Jan.
  27. Successful omental patch for huge colonic perforation using regraspable clip.
    Ono K, Ohata K, Takeuchi N, Takayanagi S, Kimoto Y, Negishi R, Minato Y.
    Endoscopy. 2023 Dec;55(S 01):E433-E435. doi: 10.1055/a-2008-0227. Epub 2023 Feb 9
  28. Perigastric abscess caused by delayed perforation after gastric endoscopic submucosal dissection: successful conservative treatment without perforation closure: a case report.
    Nagae S, Kimoto Y, Sawada R, Furuta K, Ito Y, Takeuchi N, Takayanagi S, Kano Y, Ishii R, Sakuno T, Negishi R, Ono K, Minato Y, Muramoto T, Ohata K.
    J Med Case Rep. 2023 Mar 14;17(1):92. doi: 10.1186/s13256-023-03785-5.
  29. The usefulness of a newly invented transparent silicon attachment: static electricity fastening tape hood.
    Takayanagi S, Ohata K, Nagae S, Takeuchi N, Kano Y, Ono K, Negishi R, Minato Y.
    VideoGIE. 2023 Aug 4;8(9):379-381. doi: 10.1016/j.vgie.2023.06.007. eCollection 2023 Sep.
  30. Efficacy and safety of cap-assisted endoscopic mucosal resection for superficial duodenal epithelial neoplasia ≤ 10 mm.
    Kimoto Y, Sawada R, Banjoya S, Iida T, Kimura T, Furuta K, Nagae S, Ito Y, Yamazaki H, Takeuchi N, Takayanagi S, Kano Y, Sakuno T, Ono K, Negishi R, Ohno A, Sakai E, Minato Y, Chiba H, Ohata K.
    Endosc Int Open. 2023 Oct 11;11(10):E976-E982. doi: 10.1055/a-2161-2212. eCollection 2023 Oct.
  31. Endoscopic submucosal dissection of recurrent, circumferential, distal rectal tumor with severe submucosal fibrosis using multiple clip-line tractions.
    Parekh D, Minato Y, Ohata K, Negishi R, Takeuchi N, Takayanagi S, Kim M, Bhandari S.
    VideoGIE. 2023 Aug 12;8(12):515-519. doi: 10.1016/j.vgie.2023.08.003. eCollection 2023 Dec.
  32. Comparison of cold snare polypectomy for sessile serrated lesions ≥10 mm between experienced and trainee endoscopists: A propensity score matching cohort study.
    Kimoto Y, Sawada R, Banjoya S, Iida T, Kimura T, Furuta K, Nagae S, Ito Y, Yamazaki H, Takeuchi N, Takayanagi S, Kano Y, Sakuno T, Ono K, Negishi R, Sakai E, Minato Y, Chiba H, Ohata K.
    DEN Open. 2024 Jan 6;4(1):e328. doi: 10.1002/deo2.328. eCollection 2024 Apr.
  33. Clip with line-pulley securing technique with plastic detachable snare for endoscopic submucosal dissection defect closure.
    Takeuchi N, Ohata K, Kimoto Y, Takayanagi S, Kano Y, Negishi R, Minato Y, Chiba H.
    VideoGIE. 2023 Nov 4;9(3):128-129. doi: 10.1016/j.vgie.2023.10.015. eCollection 2024 Mar.
  34. New traction technique in endoscopic submucosal dissection for large colorectal lesions: roll-up technique.
    Iida T, Kimoto Y, Kano Y, Ono K, Minato Y, Negishi R, Chiba H, Ohata K.
    VideoGIE. 2024 May 31;9(9):411-414. doi: 10.1016/j.vgie.2024.05.008. eCollection 2024 Sep.
  35. Successful endoscopic closure of delayed perforation using hemoclips after colorectal endoscopic submucosal dissection.
    Takeuchi N, Ohata K, Kano Y, Ono K, Negishi R, Minato Y, Chiba H.
    Endoscopy. 2025 Dec;57(S 01):E25-E26. doi: 10.1055/a-2494-9982. Epub 2025 Jan 14.
  36. Over-the-scope clip on over-the-scope clip technique for closure of delayed perforation near a previously placed over-the-scope clip.
    Banjoya S, Minato Y, Kano Y, Ono K, Negishi R, Chiba H, Ohata K.
    Endoscopy. 2025 Dec;57(S 01):E94-E96. doi: 10.1055/a-2519-3173. Epub 2025 Jan 31.
  37. Unique closure of large colonic endoscopic submucosal dissection defect using zigzag clip with line pulley securing technique.
    Ono K, Ohata K, Kimoto Y, Takeuchi N, Kano Y, Minato Y, Negishi R, Chiba H.
    VideoGIE. 2024 Sep 11;10(1):51-53. doi: 10.1016/j.vgie.2024.09.002. eCollection 2025 Jan.
  38. An innovative technique for closing a post-endoscopic submucosal dissection ulcer to prevent early dehiscence, the muscle-grasping clip with line pulley securing technique.
    Nagae S, Negishi R, Ono K, Minato Y, Madhu D, Chiba H, Ohata K.
    Endoscopy. 2025 Dec;57(S 01):E253-E254. doi: 10.1055/a-2550-4091. Epub 2025 Mar 21.
  39. Feasibility of a novel slim gastroscope for endoscopic submucosal dissection: A case series (with video).
    Kim M, Minato Y, Parekh D, Chiba H, Negishi R, Takayanagi S, Ono K, Kano Y, Kimoto Y, Takeuchi N, Nagae S, Ohata K.
    DEN Open. 2025 May 6;6(1):e70139. doi: 10.1002/deo2.70139. eCollection 2026 Apr.
  40. Improving Operator Depth Vision in Gastrointestinal Endoscopy: A Pilot Study of a New Three-dimensional Imaging System.
    Lin X, Ono K, Ohata K, Yamabe E, Eida H, Kanamori M, Tomita N, Iida T, Banjoya S, Kimura T, Yamazaki H, Furuta K, Takeuchi N, Kimoto Y, Kano Y, Minato Y, Takayanagi S, Nagae S, Ito Y, Negishi R, Sakai E, Chiba H, Ding Z.
    DEN Open. 2025 Jul 16;6(1):e70174. doi: 10.1002/deo2.70174. eCollection 2026 Apr.

医師 伊藤 洋平

４年前より大圃研先生の下で内視鏡治療に従事しております。


消化器系の病気は早期発見と適切な治療が鍵となりますので、症状がないからこそ定期的な検査が重要となります。患者様一人ひとりにあった検査や治療をご提供できるよう最善を尽くしてまいります。

第1、3、5火曜日に勤務しております。些細なこともお気軽にご相談ください。

伊藤 洋平

Yohei Ito

経歴

在籍日

第1、3、5火曜日

担当診療科目

消化器内科、内視鏡科

資格

  • 日本内科学会 認定内科医
  • 日本消化器内視鏡学会 専門医
  • 日本消化器病学会 消化器病専門医

所属学会

論文・業績

学会発表（総会）
  1. 当院における虫垂開口部近傍及び進展する盲腸病変への治療戦略．
    伊藤洋平　港洋平　大圃研．第105回日本消化器内視鏡学会総会．2023．
  2. 血管外漏出像を伴う大腸憩室出血に対する緊急内視鏡検査の有用性．
    伊藤洋平　高柳駿也　永江真也　古田孝一　竹内菜緒　加納由貴　石井鈴人　作野隆　小野公平　根岸良充　港洋平　大圃研．第106回日本消化器内視鏡学会総会（JDDW2023）．2023．
  3. 大腸癌術後縫合不全に対するOver-The-Scope-Clip(OTSC)System導入前後の治療成績の検討．
    伊藤洋平　大圃研　中嶋健太郎．第107回日本消化器内視鏡学会総会．2024
  4. 内視鏡処置に伴う医原性の消化管穿孔に対して内視鏡的閉鎖を行った２例．
    伊藤洋平　根岸良充　佐和田力丸　豊川英一朗　森田祐規　山田夏美　金子浩明　今西真美子　青木いづみ．第109回日本消化器内視鏡学会総会．2025．
学会発表（地方会）
  1. 内視鏡的切除にて止血し得た胃異所性膵の一例.
    伊藤洋平, 高柳駿也, 佐和田力丸, 永江真也, 古田孝一, 竹内菜緒, 木本義明, 加納由貴, 石井鈴人, 作野隆, 小野公平, 根岸良充, 港洋平, 村元喬, 大圃研. 第371回日本消化器病学会関東支部例会. 2022
  2. 当院における虫垂開口部病変の治療成績.
    伊藤洋平　石井鈴人　根岸良充　港洋平　大圃研. 第115回日本消化器内視鏡学会関東支部例会. 2022
  3. 内視鏡的粘膜下層剥離術(ESD)を施行した複合型食道原発神経内分泌細胞癌の１例.
    伊藤洋平, 港洋平, 永江真也, 古田孝一, 竹内菜緒, 高柳駿也, 加納由貴,石井鈴人, 作野隆, 小野公平, 根岸良充, 大圃研, 三浦咲子, 森川鉄平．第116回日本消化器内視鏡学会関東支部例会. 2023
学術論文（筆頭著者のみ）

Early gastric mixed neuroendocrine-non-neuroendocrine neoplasms with endoscopic findings of neuroendocrine cell carcinoma components exposed on the mucosal surface: a case report.
Ito Y, Kimoto Y, Sawada R, Nagae S, Furuta K, Takeuchi N, Takayanagi S, Kano Y, Ishii R, Sakuno T, Ono K, Negishi R, Minato Y, Muramoto T, Ohata K. J Med Case Rep. 2022 Nov 14;16(1):416, 2022.

学術講演
  1. 上部消化管の疾患の病態と診断・治療について.
    伊藤洋平．於：東京医療保健大学五反田キャンパス；13.7,2023
  2. OE workshop focus on Diagnosis of Early Cancer;
    Yohei Ito, Yohei Minato, Ken Ohata. February 18,2023; Online