講演・口頭発表等 - 大塚　和朗

21. Kazuo Ohtsuka. Immunologocal Implication in the Development of IBD Medications. TASSID 3rd Academic Meeting of 2018 2018.09.01 Taipei（Taiwan）

22. Saito　E, Suzuki K, Shimizu H, Motobayashi M, Takenaka K, Onizawa M, Fujii T, Nagahori M, Ohtsuka K, Watanabe M. The clinical efficacy of switching cases between Infliximab(IFX) andAdalimumab(ADA) in patients with ulcerative colitis. AOCC2018 2018.06.22 Shanghai

23. Suzuki K, Kuwabara K, Takahashi J, Anzai S, Kuno R, Kawamoto A, Ishibashi F, Nagata S, Hiraguri Y, Yui S, Tsuchiya K, Nakamura T, Ohtsuka K, Okamoto R, Watanabe M.. Single-cell level analysis of organoids derived from CD patients reveals disease-status related modifications of small intestinal stem cells. DDW2018 2018.06.04 Washington D.C (USA）

24. Ohtsuka K, Takenaka K, Suzuki K, Fujii T, Nagahori M, Matsuoka K, Saito E, Katsukura N, Fukuda M, Araki A, Watanabe M. Usefulness of single-balloon enteroscopy: from a single center 990 experiences. DDW2018 2018.06.03 Washington D.C (USA）

25. Ohtsuka K. Live demonstrations. (Single-balloon Endoscopy). Endoscopy 2018 2018.04.08 Kuala Lumpur（Malaysia）

26. Ohtsuka K. Live demonstrations. (Single-balloon Endoscopy). Endoscopy 2018 2018.04.07 Kuala Lumpur（Malaysia）

27. Ohtsuka K. Balloon-assisted Endoscopy. Tips and Trick. Endoscopy 2018 2018.04.07 Kuala Lumpur（Malaysia）

28. Ohtsuka K. Tips of Enteroscopy -Single Balloon Endoscopy-. Taiwan Association for the Study of Small Intestinal Diseases (TASSID) Annual Meeting 2018 2018.03.25 Taipei（Taiwan）

29. Ohtsuka K. Small Bowel Bleeding-Japan experience. Taiwan Association for the Study of Small Intestinal Diseases (TASSID) Annual Meeting 2018 2018.03.24 Taipei（Taiwan）

30. T. Fujii Y. Kitazume K. Takenaka M. Kimura E. Saito K. Matsuoka M. Nagahori K. Ohtsuka M. Watanabe. Simplified MR enterocolonography Classification Based on Endoscopic Findings for Activity Assessment of Crohn’s Disease. UEGW2017 (欧州消化器病学会週間2017） 2017.11.01 Barcelona(Spain)

31. Takenaka K, Ohtsuka K, Kitazume Y, Fujii T, Matsuoka K, Kimura M, Nagahori M, Watanabe M. Utility of Magnetic Resonance Evaluation for Small Bowel Endoscopic Healing in Patients with Crohn’s Disease. UEGW2017 (欧州消化器病学会週間2017） 2017.10.30 Barcelona(Spain)

32. Takenaka K, Ohtsuka K, Kitazume Y, Matsuoka K, Fujii T, Nagahori M, Kimura M, Watanabe M.. Magnetic resonance enterography for small bowel mucosal healing in patients with Crohn’s disease.. APDW2017 2017.09.23 Hong Kong Convention and Exhibition Centre（香港）

33. Motobayashi M, Matsuoka K, Iwamoto F, Takenaka K, Fujii T, Nagahori M, Enomoto N, Ohtsuka K, Watanabe M. Correlation of Fecal Calprotectin Levels with Endoscopic Severity Evaluated with Balloon-assisted Endoscopy in Patients with Crohn’s Disease. . AOCC2017 2017.06.17 Seoul, Korea

34. Fujii T, Kitazume Y, Takenaka K, Kimura M, Matsuoka K, Nagahori M, Ohtsuka K, Watanabe M. The 5-point MR enterocolonography classification based on endoscopic findings for activity assessment of Crohn's disease. AOCC2017 2017.06.16 Seoul, Korea

35. Kento Takenaka, Kazuo Ohtsuka, Yoshio Kitazume, Katsuyoshi Matsuoka, Toshimitsu Fujii, Masakazu Nagahori, Maiko Kimura, Mamoru Watanabe. Magnetic resonance evaluation for small bowel endoscopic remission in patients with crohn’s disease.. AOCC2017 2017.06.15 Seoul, Korea

36. 竹中健人、大塚和朗. 腹痛および皮疹を主訴に受診し バルーン内視鏡にて回腸病変を 認めた一例. 第103回日本紹介内視鏡学会関東支部例会 2016.12.18 シェーンバッハ・サボー（東京都千代田区）

37. Takenaka K, Ohtsuka K, Watanabe M. Magnetic resonance evaluation for small bowel strictures of Crohn’s disease: comparison with balloon enteroscopy. APDW2016 2016.11.05 kobe convention center

38. Toshimitsu Fujii, Kento Takenaka, Maiko Kimura, Katsuyoshi Matsuoka, Masakazu Nagahori, Kazuo Ohtsuka, Mamoru Watanabe. MR enterocolonography evaluation for small bowel strictures in patients with Crohn’s disease: comparison with balloon enteroscopy. UEGW2016 2016.10.18 VIENNA

39. Fujii T, Takenaka K, Kitazume Y, Kimura M, Matsuoka K, Nagahori M, Ohtsuka K, Watanabe M. MR enterocolonography can detect small bowel strictures and predict surgery in patients with Crohn’s disease: Comparison with balloon enteroscopy. APDW2016 2016.10.03 KOBE

40. Ohtsuka K, Takenaka K, Fujii T, Matsuoka K, Nagahori M, Kimura M, Fukuda M, Katsukura N, Watanabe M. Mucosal healing improves prognosis of endoscopic balloon dilatatiion for small intestinal strictures of Crohn's disease. AOCC2016 2016.07.09 Kyoto