専　門

• 上部消化管癌の内視鏡診断・治療

所属学会

• 日本内科学会　総合内科専門医・指導医
• 日本消化器病学会　専門医・指導医・近畿支部評議員
• 日本消化器内視鏡学会　専門医・指導医・近畿支部評議員・学術評議員
• 日本消化管学会　胃腸科専門医・指導医・代議員・学術企画委員
• 日本癌治療医認定医機構　がん治療認定医
• 日本胃癌学会
• 日本食道学会　食道科認定医
• 日本カプセル内視鏡学会
• 米国消化器内視鏡学会（ASGE）

業　績

英文
Book

1. Dohi O, Itoh Y. Endoscopic Submucosal Dissection Using a Scissors-Type Knife. In: Doraganov PV, Gotoda T, Yang D. Advanced techniques for endoscopic resection in the GI tract. New Jersey: SLACK Incorporated, 243-249, 2019.

Review

1. Dohi O, Majima A, Naito Y, Yoshida T, Ishida T, Azuma Y, Kitae H, Matsumura S, Mizuno N, Yoshida N, Kamada K, Itoh Y. Can image-enhanced endoscopy improve the diagnosis of Kyoto classification of gastritis in the clinical setting? Dig Endosc. 2020; 32(2): 191–203.
2. Yoshida N, Dohi O, Inoue K, Yasuda R, Ishida T, Hirose R, Naito Y, Ogiso K, Murakami T, Morinaga Y, Kishimoto M, Inada Y, Itoh Y, Gotoda T. Efficacy of scissor-type knives for endoscopic mucosal dissection of superficial gastrointestinal neoplasms. Dig Endosc. 2020; 32(1): 4-15.
3. Yoshida N, Dohi O, Inoue K, Yasuda R, Murakami T, Hirose R, Inoue K, Naito Y, Inada Y, Ogiso K, Morinaga Y, Kishimoto M, Rani RA, Itoh Y. Blue Laser Imaging, Blue Light Imaging, and Linked Color Imaging for the Detection and Characterization of Colorectal Tumors. Gut Liver. 2019;13(2):140-148.

Original article

1. Nakano T, Dohi O, Naito Y, Terasaki K, Iwai N, Ueda T, Majima A, Horii Y, Yasuda-Onozawa Y, Kitaichi T, Hirose R, Inoue K, Yoshida N, Kamada K, Uchiyama K, Handa O, Ishikawa T, Takagi T, Konishi H, Kishimoto M, Itoh Y. Efficacy and feasibility of magnifying blue laser imaging without biopsy confirmation for the diagnosis of the demarcation of gastric tumors: A randomized controlled study. Dig Dis. 2020 Jul 30. doi: 10.1159/000510559.
2. Ueda T, Dohi O, Naito Y, Yoshida T, Azuma Y, Ishida T, Matsumura S, Kitae H, Takayama S, Mizuno N, Nakano T, Iwai N, Hirose R, Inoue K, Yoshida N, Kamada K, Uchiyama K, Ishikawa T, Takagi T, Konishi H, Nishimura A, Kishimoto M, Itoh Y. Diagnostic performance of magnifying blue laser imaging versus magnifying narrow-band imaging for identifying the depth of invasion of superficial esophageal squamous cell carcinoma. Dis Esophagus. 2020 Jul 21; doaa078. doi: 10.1093/dote/doaa078.
3. Iwai N, Dohi O, Naito Y, Inada Y, Inoue K, Okayama T, Yoshida N, Katada K, Kamada K, Uchiyama K, Ishikawa T, Takagi T, Konishi H, Itoh Y. High-risk comorbidity influences prognosis in early gastric cancer after non-curative endoscopic submucosal dissection: a retrospective study. Dig Dis. 2020 Jul 14. doi: 10.1159/000510115.
4. Ishida T, Dohi O, Yamada S, Yasuda T, Yamada N, Tomie A, Tsuji T, Horii Y, Majima A, Horie R, Fukui A, Zen K, Tomatsuri N, Yagi N, Naito Y, Itoh Y. Clinical outcomes of vonoprazan-treated patients after endoscopic submucosal dissection for gastric neoplasms: A prospective multicenter observation study. Digestion. 2020; 25; 1-11. doi: 10.1159/000507807.
5. Dohi O, Ishida T, Yoshida N. Linked color imaging followed by magnifying blue laser imaging identifies early gastric cancer in map-like redness after successful Helicobacter pylori eradication. Dig Endosc. 2020 May 28. doi: 10.1111/den.13708.
6. Dohi O, Yoshida N, Naito Y, Yoshida T, Ishida T, Azuma Y, Kitae H, Matsumura S, Takayama S, Ogita K, Mizuno N, Nakano T, Majima A, Hirose R, Inoue K, Kamada K, Uchiyama K, Takagi T, Ishikawa T, Konishi H, Morinaga Y, Kishimoto M, Itoh Y. Efficacy and safety of endoscopic submucosal dissection using a scissors-type knife with prophylactic over-the-scope clip closure for superficial non-ampullary duodenal epithelial tumors. Dig Endosc. 2019 Dec 27. doi: 10.1111/den.13618.
7. Takayama S, Dohi O, Naito Y, Azuma Y, Ishida T, Kitae H, Matsumura S, Ogita K, Mizuno N, Terasaki K, Nakano T, Ueda T, Morinaga Y, Hirose R, Inoue K, Yoshida N, Kamada K, Uchiyama K, Ishikawa T, Takagi T, Handa O, Kishimoto M, Konishi H, Itoh Y. Diagnostic Ability of Magnifying Blue Light Imaging with a Light Emitting Diode Light Source for Early Gastric Cancer: A Prospective Comparative Study. Digestion. 2019 Dec 12:1-10. doi: 10.1159/000505018.
8. Terasaki K, Dohi O, Naito Y, Azuma Y, Ishida T, Kitae H, Matsumura S, Ogita K, Takayama S, Mizuno N, Nakano T, Iwai N, Ueda T, Hirose R, Inoue K, Yoshida N, Kamada K, Uchiyama K, Ishikawa T, Takagi T, Konishi H, Itoh Y. Effects of Guidelines for Gastroenterological Endoscopy in Patients Undergoing Antithrombotic Treatment on Postoperative Bleeding after Endoscopic Submucosal Dissection for Early Gastric Cancer: A Propensity Score-Matching Analysis. Digestion. 2019 Nov 26:1-9. doi: 10.1159/000504597.
9. Ono S, Dohi O, Yagi N, Sanomura Y, Tanaka S, Naito Y, Sakamoto N, Kato M. Accuracies of Endoscopic Diagnosis of Helicobacter pylori-Gastritis: Multicenter Prospective Study Using White Light Imaging and Linked Color Imaging. Digestion. 2019 Jul 23:1-7. doi: 10.1159/000501634.
10. Majima A, Dohi O, Takayama S, Hirose R, Inoue K, Yoshida N, Kamada K, Uchiyama K, Ishikawa T, Takagi T, Handa O, Konishi H, Naito Y, Itoh Y. Linked color imaging identifies important risk factors associated with gastric cancer after successful Helicobacter pylori eradication. Gastrointest Endosc. 2019;90(5):763-769.
11. Dohi O, Hatta W, Gotoda T, Naito Y, Oyama T, Kawata N, Takahashi A, Oka S, Hoteya S, Nakagawa M, Hirano M, Esaki M, Matsuda M, Ohnita K, Shimoda R, Yoshida M, Takada J, Tanaka K, Yamada S, Tsuji T, Ito H, Aoyagi H, Shimosegawa T. Long-term outcomes after non-curative endoscopic submucosal dissection for early gastric cancer according to hospital volumes in Japan: a multicenter propensity-matched analysis. Surg Endosc. 2019;33(12):4078-4088.
12. Dohi O, Yagi N, Naito Y, Fukui A, Gen Y, Iwai N, Ueda T, Yoshida N, Kamada K, Uchiyama K, Takagi T, Konishi H, Yanagisawa A, Itoh Y. Blue laser imaging-bright improves the real-time detection rate of early gastric cancer: a randomized controlled study. Gastrointest Endosc. 2019;89:47-57.
13. Dohi O, Yoshida N, Terasaki K, Azuma Y, Ishida T, Kitae H, Matsumura S, Ogita K, Takayama S, Mizuno N, Nakano T, Hirose R, Inoue K, Kamada K, Uchiyama K, Ishikawa T, Takagi T, Kishimoto M, Konishi H, Naito Y, Itoh Y. Efficacy of Clutch Cutter for standardizing endoscopic submucosal dissection for early gastric cancer: a propensity score-matched analysis. Digestion 2019;100(3):201-209.
14. Horii Y, Dohi O, Naito Y, Takayama S, Ogita K, Terasaki K, Nakano T, Majima A, Yoshida N, Kamada K, Uchiyama K, Ishikawa T, Takagi T, Handa O, Konishi H, Yagi N, Yanagisawa A, Itoh Y. Efficacy of magnifying narrow band imaging for delineating horizontal margins of early gastric cancer. Digestion. 2019;100(2):93-99.
15. Kitaichi T, Dohi O, Fujita Y, Majima A, Horii Y, Yasuda-Onozawa Y, Suzuki K, Tomie A, Okayama T, Yoshida N, Kamada K, Uchiyama K, Ishikawa T, Handa O, Konishi H, Kisimoto M, Yagi N, Naito Y, Yanagisawa A, Itoh Y. Clinical and pathological challenges in the diagnosis of gastric-type differentiated adenocarcinoma in the stomach: a study of endoscopic submucosal dissection cases. Digestion. 2019;99(4):301-309.
16. Iwai N, Dohi O, Naito Y, Inada Y, Fukui A, Takayama S, Ogita K, Terasaki K, Nakano T, Ueda T, Okayama T, Yoshida N, Katada K, Kamada K, Uchiyama K, Ishikawa T, Handa O, Takagi T, Konishi H, Yagi N, Itoh Y. Impact of the Charlson comorbidity index and prognostic nutritional index on prognosis in patients with early gastric cancer after endoscopic submucosal dissection. Dig Endosc. 2018;30(5):616-623.
17. Dohi O, Yagi N, Yoshida S, Ono S, Sanomura Y, Tanaka S, Naito Y, Kato M. Magnifying Blue Laser Imaging versus Magnifying Narrow-Band Imaging for the Diagnosis of Early Gastric Cancer: A Prospective, Multicenter, Comparative Study. Digestion 2017;96:127–134.
18. Kimura-Tsuchiya R, Dohi O, Fujita Y, Yagi N, Majima A, Horii Y, Kitaichi T, Onozawa Y, Suzuki K, Tomie A, Okayama T, Yoshida N, Kamada K, Katada K, Uchiyama K, Ishikawa T, Takagi T, Handa O, Konishi H, Kishimoto M, Naito Y, Yanagisawa A, Itoh Y. Magnifying Endoscopy with Blue Laser Imaging Improves the Microstructure Visualization in Early Gastric Cancer: Comparison of Magnifying Endoscopy with Narrow-Band Imaging. Gastroenterol Res and Pract. 2017; 2017,8303046,
19. Dohi O, Yagi N, Majima A, Horii Y, Kitaichi T, Onozawa Y, Suzuki K, Tomie A, Reiko Kimura-Tsuchiya, Tsuji T, Yamada N, Bito N, Okayama T, Yoshida N, Kamada K, Katada K, Uchiyama K, Ishikawa T, Takagi T, Handa O, Konishi H, Naito Y, Yanagisawa A, Itoh Y. Diagnostic ability of magnifying endoscopy with blue laser imaging for early gastric cancer: a prospective study. Gastric Cancer 2017;20:297-303.
20. Tomie A, Dohi O, Yagi N, Kitae H, Majima A, Horii Y, Kitaichi T, Onozawa Y, Suzuki K, Kimura-Tsuchiya R, Okayama T, Yoshida N, Kamada K, Katad, K, Uchiyama K, Ishikawa T, Takagi T, Handa O, Konishi H, Naito Y, Itoh Y. Blue Laser Imaging-Bright Improves Endoscopic Recognition of Superficial Esophageal Squamous Cell Carcinoma. Gastroenterol Res Pract. 2016;2016:6140854.
21. Dohi O, Yagi N, Onozawa Y, Reiko Kimura-Tsuchiya, Majima A, Kitaichi T, Horii Y, Suzuki K, Tomie A, Okayama T, Yoshida N, Kamada K, Katada K, Uchiyama K, Ishikawa T, Takagi T, Handa O, Konishi H, Naito Y, Itoh Y. Linked color imaging improves endoscopic diagnosis of active Helicobacter pylori infection. Endosc Int Open. 2016; 04: E800–E805.
22. Dohi O, Dohi M, Inoue K, Gen Y, Jo M, Tokita K. Endoscopic transgastric drainage of a gastric wall abscess after endoscopic submucosal dissection. World J Gastroenterol 2014;20(4): 1119-1122.
23. Inoue K, Dohi O, Gen Y, Jo M, Mazaki T, Tokita K, Yoshida N, Okayama T, Kamada K, Katada K, Uchiyama K, Ishikawa T, Handa O, Takagi T, Konishi H, Wakabayashi N, Yagi N, Naito Y, Itoh Y. L-menthol improves adenoma detection rate during colonoscopy: a randomized trial. Endoscopy. 2014;46(3):196-202.
24. Dohi O, Yasui K, Gen Y, Takada H, Endo M, Tsuji K, Konishi C, Yamada N, Mitsuyoshi H, Yagi N, Naito Y, Tanaka S, Arii S, Yoshikawa T. Epigenetic silencing of miR-335 and its host gene MEST in hepatocellular carcinoma. Int J Oncol. 2013;42(2):411-8.
25. Dohi O, Yagi N, Wada T, Yamada N, Bito N, Yamada S, Gen Y, Yoshida N, Uchiyama K, Ishikawa T, Takagi T, Handa O, Konishi H, Wakabayashi N, Kokura S, Naito Y, Yoshikawa T. Recognition of Endoscopic Diagnosis in Differentiated-Type Early Gastric Cancer by Flexible Spectral Imaging Color Enhancement with Indigo Carmine. Digestion. 2012;86(2):161-170.
26. Dohi O, Takada H, Wakabayashi N, Sakakura C, Mitsufuji S, Naito Y, Taniwaki M, Yoshikawa T. Epigenetic silencing of RELN in gastric cancer. Int J Oncol. 2010;36(1):85-92.

和文
著書

1. 土肥　統，内藤裕二，伊藤義人. II 十二指腸　十二指腸Brunner腺腫，Brunner腺過形成. 別冊日本臨牀　領域別症候群シリーズ　N0. 9 消化管症候群（第3版） I　, 日本臨牀社, 東京2019: 451-453.
2. 土肥　統．Linked Color Imaging（LCI）の有用性．胃内視鏡検査・診断に自信がつく本　編著　後藤田卓志, 内藤裕二　他. 金芳堂，東京　2018: 221-224.
3. 土肥　統. LCIで見えないものが見えてきます！　私の内視鏡 Tips. 編集　小野敏嗣　医学書院, 東京　2018: 38.
4. 土肥　統. 胃ESD：近づきにくい時はお腹を押してみよう！－腹部圧迫近接法－.私の内視鏡 Tips. 編集　小野敏嗣　医学書院, 東京　2018: 92.
5. 土肥　統，鎌田和浩，内藤裕二. 症例アトラス　[胃] 8陥凹型胃癌（M癌）②　NBI BLI LCI新しい診断基準・分類に基づいた内視鏡アトラス, 編集　加藤元嗣　他．日本メディカルセンター, 東京2016: 146-147.
6. 土肥　統，鎌田和浩，内藤裕二. 症例アトラス　[胃] 16未感染未分化型胃癌②　NBI BLI LCI新しい診断基準・分類に基づいた内視鏡アトラス, 編集　加藤元嗣　他．日本メディカルセンター, 東京2016: 162-163.

総説

1. 土肥　統，八木信明，内藤裕二，伊藤義人．レーザー光源を用いた画像強調内視鏡による早期胃癌診断．Gastroenterol Endosc. 2019；61(7)：1367-75.
2. 土肥　統. 早期胃癌に対する内視鏡治療の進歩と今後の展望 京都府立医科大学雑誌2018: 127(8),503-509.

原著

1. 土肥　統．十二指腸腫瘍に対する内視鏡治療法選択について　週刊日本医事新報 2020; 9: 50-51.
2. 土肥　統，井上　健，吉田直久，内山和彦，髙木智久，内藤裕二，伊藤義人．消化管観察におけるLCIの有用性と実際．消化器クリニカルアップデート　2020; 2(1): 48-55.
3. 土肥　統, 吉田直久，石田紹敬，内藤裕二，伊藤義人. ハサミ型ナイフを使用した十二指腸ESDのコツ　ESD後の縫縮法も含めてGastroenterol Endosc.　2020; 62(2):186-193.
4. 土肥　統, 八木信明，内藤裕二. 胃ESDにおける腹部圧迫近接法Gastroenterol Endosc.　2014; 56(10):3658-3659.
5. 土肥　統，八木信明，木村礼子，鎌田和浩，内藤裕二，伊藤義人. 残胃の早期胃癌に対するESDの実際.　消化器の臨床　2014;17(3):264-268.

症例報告

1. 土肥　統，小西英幸，玄　泰行，中尾龍太，若林直樹，八木信明，内藤裕二，岡野　均，柳澤昭夫，吉川敏一. 胃噴門部上皮内進展を来した表在型食道胃接合部扁平上皮癌の１例Gastroenterol Endosc.　2012；54(9):3136-3140.
2. 土肥 統, 十亀義生, 谷口淳子, 赤松尚明．内視鏡的クリップ法にて止血しえた回腸Dieulafoy型潰瘍の1例Gastroenterol Endosc. 2008；50(12):3048-3053.