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Annual Report 2021

Division of Science and Technology for Endoscopy (Tsukiji Campus)

Shigetaka Yoshinaga, Yutaka Saito, Haruhisa Suzuki, Satoru Nonaka, Naoki Toyoshima, Masayoshi Yamada, Susumu Hijioka, Yasuo Kakugawa, Seiichiro Abe, Hiroyuki Takamaru, Keiko Nakamura, Taku Sakamoto

Introduction

 Remarkable progress has been made in not only endoscopic diagnosis but also endoscopic treatment. Our efforts will be focused on the development of new endoscopic diagnosis (e.g. molecular imaging, functional imaging) and treatment (e.g. full thickness resection), as well as effective training systems with industry-academia collaboration (Figure 1).

Figure 1.
Figure 1.

Figure 1.
Figure 1.

The Team and What We Do

 Since fiscal year 2017, in the Division of Science and Technology for Endoscopy of the Exploratory Oncology Research & Clinical Trial Center (EPOC) at the National Cancer Center (NCC) Tsukiji campus, four teams were organized (diagnosis team, treatment team, training team, AI team) to develop innovative endoscopic diagnosis, treatment and training systems. We searched clinical needs, and then set up development themes for each team.

Diagnosis team: Naoki Toyoshima, Haruhisa Suzuki, Satoru Nonaka, Masayoshi Yamada, Taku Sakamoto

Treatment team: Satoru Nonaka, Seiichiro Abe, Hiroyuki Takamaru, Taku Sakamoto

Training team: Haruhisa Suzuki, Yasuo Kakugawa, Taku Sakamoto, Keiko Nakamura

Artificial intelligence (AI) team: Masayoshi Yamada

Echo-endoscopy team: Susumu Hijioka, Shigetaka Yoshinaga

Supervisors: Shigetaka Yoshinaga, Yutaka Saito

Research activities

1. In collaboration with Olympus Corporation, we have started the development of new endoscopic diagnostic, therapeutic and training equipment at Olympus Lab in the National Cancer Center Research Institute (NCCRI). In fiscal year 2019, we continued to develop innovative endoscopic equipment. Although the details are currently confidential, each team is involved in three or four research and development themes.

2. In collaboration with the Artificial Intelligence Research Center (AIRC), the National Institute of Advanced Industrial Science and Technology (AIST) (Professor Jun Sese), the NCCRI (Professor Ryuji Hamamoto), and the Division of Science and Technology for Endoscopy of the EPOC (Kashiwa campus: Professor Hiroaki Ikematsu), we have started the research and development of an endoscopic diagnosis support system on tumor invasion of gastrointestinal cancer using AI. These results were submitted for the following presentations. 1. Yamada, M. et al. The 103th Annual Meeting of the Japan Gastroenterological Endoscopy Society, Kyoto, Japan, May 2022

3. The patent application was filed jointly with Olympus Corporation for two patents: “Medical Stapler,”“Medical Stapler and Suturing Method,”“Fastening Device, Endoscopic System, and Suturing Method,”“Suture Method,”“Grasping Forceps and Suturing Method,”“Regarding the Field of View of Grasping Part,”“Regarding Advancement and Retraction Mechanism for the Ulcer Closure Device,” developed in the joint research with Olympus Corporation, and “Total Laminectomy Method,” jointly filed with Olympus Corporation. (Olympus Corporation has applied for six single patents.) In academic and research society presentations, we received the Best Presentation Award at the 2nd meeting of EFTR & Closure Conference (December 2020), and gave presentations at the 3rd meeting of the same society and the 112th meeting of the Kanto Branch of the Japanese Society of Gastrointestinal Endoscopy. Chronic animal experiments are currently underway (August 2022) on a prototype model with final specifications for closure of the defect hole after full-layer resection.

Education

 Residents of the Endoscopy Division of National Cancer Center Hospital participate in the meetings of each development team and various development experiments to train and educate the next generation of people who will be responsible for endoscopic device development.

Future prospects

 In our division, we would like to work on the development of innovative endoscopic diagnosis, treatment, and training systems in collaboration with industry, academia, and government in order to solve many current issues and future demands in daily clinical practice, and to disseminate them from Japan to the world.

List of papers published in 2021

Journal

1. Saito Y, Kodashima S, Matsuda T, Matsuda K, Fujishiro M, Tanaka K, Kobayashi K, Katada C, Horimatsu T, Muto M, Ohtsuka K, Oda I, Kato M, Kida M, Hoteya S, Yamamoto H, Ryozawa S, Iwakiri R, Kutsumi H, Kato M, Haruma K, Fujimoto K, Iishi H, Ogata H, Uemura N, Kaminishi M, Tajiri H, Inoue H. Current status of diagnostic and therapeutic colonoscopy in Japan: The Japan Endoscopic Database Project. Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society, 34:144-152, 2022

2. Mizuguchi Y, Tanaka Y, Cho H, Sekiguchi M, Takamaru H, Yamada M, Sakamoto T, Matsuda T, Hashimoto T, Sekine S, Saito Y. Endoscopic features of isolated and traditional serrated adenoma-associated superficially serrated adenomas of the colorectum. Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society, 34:153-162, 2022

3. Fujimoto A, Saito Y, Abe S, Hoteya S, Nomura K, Yasuda H, Matsuo Y, Uraoka T, Kuribayashi S, Tsuji Y, Ohki D, Maehata T, Kato M, Yahagi N. Clinical usefulness of red dichromatic imaging in hemostatic treatment during endoscopic submucosal dissection: First report from a multicenter, open-label, randomized controlled trial. Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society, 34:379-390, 2022

4. Kurosawa S, Yamaguchi T, Mori A, Tsukagoshi M, Okuda I, Ikeda M, Ueno T, Saito Y, Aihara Y, Matsuba Y, Fuji S, Yamashita T, Ogawa C, Ito A, Tanaka T, Inamoto Y, Kim SW, Fukuda T. Feasibility and usefulness of recommended screenings at long-term follow-up clinics for hematopoietic cell transplant survivors. Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer, 30:2767-2776, 2022

5. Nakazawa K, Saito Y, Yoshinaga S, Sekine S, Higuchi K. Endoscopic submucosal dissection for localized amyloidosis of the sigmoid colon. Endoscopy, 54:E5-E6, 2022

6. Sekiguchi M, Oda I, Matsuda T, Saito Y. Epidemiological Trends and Future Perspectives of Gastric Cancer in Eastern Asia. Digestion, 103:22-28, 2022

7. Tsuchiya T, Itoi T, Ishii K, Tonozuka R, Mukai S, Nagai K, Yamamoto K, Honma T, Minami H, Saito Y. Impact of using scope holder on Interventional Endoscopy (with video). Journal of hepato-biliary-pancreatic sciences, 29:e3-e4, 2022

8. Sekiguchi M, Igarashi A, Mizuguchi Y, Takamaru H, Yamada M, Sakamoto T, Maltzman H, Falkén Y, Esaki M, Matsuda T, Saito Y . Cost-effectiveness analysis of endoscopic resection for colorectal laterally spreading tumors: Endoscopic submucosal dissection versus piecemeal endoscopic mucosal resection. Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society, 34:553-568, 2022

9. Akiyama S, Sakamoto T, Steinberg JM, Saito Y, Tsuchiya K. Evolving roles of magnifying endoscopy and endoscopic resection for neoplasia in inflammatory bowel diseases. World journal of gastrointestinal oncology, 14:646-653, 2022

10. Makiguchi ME, Abe S, Okagawa Y, Nonaka S, Suzuki H, Yoshinaga S, Oda I, Ryuta O, Saito Y. Preclinical Efficacy and Clinical Feasibility of a Novel Aerosol-Exposure Protection Mask for Esophagogastroduodenoscopy. Clinical endoscopy, 55:226-233, 2022

11. Nakajima T, Sakamoto T, Hori S, Yamada S, Ikematsu H, Harada K, Chiu HM, Kiriyama S, Michida T, Hotta K, Sakamoto N, Abe T, Chino A, Fukuzawa M, Kobayashi N, Fukase K, Matsuda T, Murakami Y, Ishikawa H, Saito Y. Optimal surveillance interval after piecemeal endoscopic mucosal resection for large colorectal neoplasia: a multicenter randomized controlled trial. Surgical endoscopy, 36:515-525, 2022

12. Abe S, Oguma J, Nonaka S, Suzuki H, Yoshinaga S, Oda I, Saito Y, Daiko H. Novel hybrid endoscopy-assisted larynx-preserving esophagectomy for cervical esophageal cancer (with video). Japanese journal of clinical oncology, 51:1171-1175, 2021

13. Takamaru H, Saito Y, Sekiguchi M, Yamada M, Sakamoto T, Matsuda T, Sekine S, Ochiai H, Tsukamoto S, Shida D, Kanemitsu Y. Endoscopic Resection Before Surgery Does Not Affect the Recurrence Rate in Patients With High-Risk T1 Colorectal Cancer. Clinical and translational gastroenterology, 12:e00336, 2021

14. Kasuga K, Yamada M, Shida D, Tagawa T, Takamaru H, Sekiguchi M, Sakamoto T, Uraoka T, Sekine S, Kanemitsu Y, Saito Y. Treatment outcomes of endoscopic submucosal dissection and surgery for colorectal neoplasms in patients with ulcerative colitis. United European gastroenterology journal, 9:964-972, 2021

15. Wada Y, Shimada M, Murano T, Takamaru H, Morine Y, Ikemoto T, Saito Y, Balaguer F, Bujanda L, Pellise M, Kato K, Saito Y, Ikematsu H, Goel A. A Liquid Biopsy Assay for Noninvasive Identification of Lymph Node Metastases in T1 Colorectal Cancer. Gastroenterology, 161:151-162.e1, 2021

16. Abe S, Oda I. Real-time pharyngeal cancer detection utilizing artificial intelligence: Journey from the proof of concept to the clinical use. Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society, 33:552-553, 2021

17. Mehta N, Abushahin A, Sadaps M, Alomari M, Vargo J, Patil D, Lopez R, Kalady M, Delaney CP, Gorgun E, Church J, Saito Y, Burke CA, Bhatt A. Recurrence with malignancy after endoscopic resection of large colon polyps with high-grade dysplasia: incidence and risk factors. Surgical endoscopy, 35:2500-2508, 2021

18. Kawashima K, Abe S, Koga M, Nonaka S, Suzuki H, Yoshinaga S, Oda I, Hikichi T, Ohira H, Saito Y. Optimal selection of endoscopic resection in patients with esophageal squamous cell carcinoma: endoscopic mucosal resection versus endoscopic submucosal dissection according to lesion size. Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus, 34:2021

19. Nakazawa K, Nouda S, Kakimoto K, Kinoshita N, Tanaka Y, Tawa H, Koshiba R, Naka Y, Hirata Y, Ota K, Kawakami K, Takeuchi T, Inoue T, Miyazaki T, Sanomura M, Nakamura S, Saito Y, Higuchi K. The Differential Diagnosis of Colorectal Polyps Using Colon Capsule Endoscopy. Internal medicine (Tokyo, Japan), 60:1805-1812, 2021

20. Ego M, Abe S, Nonaka S, Suzuki H, Yoshinaga S, Oda I, Saito Y. Endoscopic Closure Utilizing Endoloop and Endoclips After Gastric Endoscopic Submucosal Dissection for Patients on Antithrombotic Therapy. Digestive diseases and sciences, 66:2336-2344, 2021

21. Yamada M, Saito Y, Yamada S, Kondo H, Hamamoto R. Detection of flat colorectal neoplasia by artificial intelligence: A systematic review. Best practice & research. Clinical gastroenterology, 52-53:101745, 2021

22. Mori Y, Kudo SE, Misawa M, Hotta K, Kazuo O, Saito S, Ikematsu H, Saito Y, Matsuda T, Kenichi T, Kudo T, Nemoto T, Itoh H, Mori K. Artificial intelligence-assisted colonic endocytoscopy for cancer recognition: a multicenter study. Endoscopy international open, 9:E1004-E1011, 2021

23. Kamba S, Tamai N, Saitoh I, Matsui H, Horiuchi H, Kobayashi M, Sakamoto T, Ego M, Fukuda A, Tonouchi A, Shimahara Y, Nishikawa M, Nishino H, Saito Y, Sumiyama K. Reducing adenoma miss rate of colonoscopy assisted by artificial intelligence: a multicenter randomized controlled trial. Journal of gastroenterology, 56:746-757, 2021

24. Saito Y, Abe S, Inoue H, Tajiri H. How to Perform a High-Quality Endoscopic Submucosal Dissection. Gastroenterology, 161:405-410, 2021

25. Bhatt A, Mehta NA, Abe S, Saito Y. A novel curved wire retraction device for endoscopic submucosal dissection. VideoGIE : an official video journal of the American Society for Gastrointestinal Endoscopy, 6:342-343, 2021

26. Sakamoto T, Cho H, Saito Y. Clinical Applications of Linked Color Imaging and Blue Laser/Light Imaging in the Screening, Diagnosis, and Treatment of Superficial Colorectal Tumors. Clinical endoscopy, 54:488-493, 2021

27. Tagawa T, Yamada M, Minagawa T, Sekiguchi M, Konda K, Tanaka H, Takamaru H, Sekiguchi M, Sakamoto T, Matsuda T, Kuchiba A, Yoshida H, Saito Y. Endoscopic characteristics influencing postpolypectomy bleeding in 1147 consecutive pedunculated colonic polyps: a multicenter retrospective study. Gastrointestinal endoscopy, 94:803-811.e6, 2021

28. Saito Y, Ono A. Underwater Endoscopic Mucosal Resection for Colorectal Lesions: A Bridge Between Conventional Endoscopic Mucosal Resection and Endoscopic Submucosal Dissection. Gastroenterology, 161:1369-1371, 2021

29. Saito Y, Oka S, Tamai N, Kudo T, Kuniyoshi N, Shirakura T, Omae Y, Hamahata Y, Arai T, Tanaka S, Uedo N, Shimizu S, Fukuzawa M, Uraoka T, Ichinose S, Ogata H, Kobayashi K, Saito S, Tajiri H. Efficacy and safety of oral sulfate solution for bowel preparation in Japanese patients undergoing colonoscopy: Noninferiority-based, randomized, controlled study. Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society, 33:1131-1138, 2021

30. Hashimoto M, Hatta W, Tsuji Y, Yoshio T, Yabuuchi Y, Hoteya S, Doyama H, Nagami Y, Hikichi T, Kobayashi M, Morita Y, Sumiyoshi T, Iguchi M, Tomida H, Inoue T, Mikami T, Hasatani K, Nishikawa J, Matsumura T, Nebiki H, Nakamatsu D, Ohnita K, Suzuki H, Ueyama H, Hayashi Y, Sugimoto M, Fujishiro M, Masamune A, Ohira H. Rebleeding in patients with delayed bleeding after endoscopic submucosal dissection for early gastric cancer. Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society, 33:1120-1130, 2021

31. Ego M, Abe S, Nakatani Y, Nonaka S, Suzuki H, Yoshinaga S, Oda I, Kato K, Honma Y, Itami J, Daiko H, Saito Y, Boku N. Long-term outcomes of patients with recurrent squamous cell carcinoma of the esophagus undergoing salvage endoscopic resection after definitive chemoradiotherapy. Surgical endoscopy, 35:1766-1776, 2021

32. Yokota T, Saito Y, Takamaru H, Sekine S, Nakajima T, Yamada M, Sakamoto T, Taniguchi H, Kushima R, Tsukamoto S, Shida D, Kanemitsu Y, Matsuda T. Spontaneous Regression of Mismatch Repair-Deficient Colon Cancer: A Case Series. Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association, 19:1720-1722.e3, 2021

33. Abe S, Matsuzaki J, Sudo K, Oda I, Katai H, Kato K, Takizawa S, Sakamoto H, Takeshita F, Niida S, Saito Y, Ochiya T. A novel combination of serum microRNAs for the detection of early gastric cancer. Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association, 24:835-843, 2021

34. Takamaru H, Kawaguchi Y, Oda I, Sekiguchi M, Yamada M, Abe S, Nonaka S, Suzuki H, Yoshinaga S, Saito Y. A new reliable acoustic respiratory monitoring technology during upper gastrointestinal tract therapeutic endoscopy with CO(2) insufflation. Journal of clinical monitoring and computing, 35:877-884, 2021

35. Kitamura H, Hijioka S, Maruki Y, Ohba A, Nagashio Y, Okusaka T, Saito Y. Novel double endoscopic ultrasound-guided hepaticogastrostomy for two-hole benign anastomotic stenosis with difficult gastrointestinal approach. Endoscopy, 53:E140-E142, 2021

36. Koga T, Hijioka S, Ishikawa Y, Ito K, Harai S, Okusaka T, Saito Y. Duckbill-type antireflux self-expandable metal stent placement for post-choledochojejunostomy reflux cholangitis. Endoscopy, 53:E174-E176, 2021

37. Inoki K, Abe S, Tanaka Y, Yamamoto K, Hihara D, Ichijima R, Nakatani Y, Chen HY, Takamaru H, Sekiguchi M, Yamada M, Sakamoto T, Nonaka S, Suzuki H, Yoshinaga S, Oda I, Matsuda T, Saito Y. Reduced Intravenous Fluorescein Dose for Upper and Lower Gastrointestinal Tract Probe-Based Confocal Laser Endomicroscopy. Clinical endoscopy, 54:363-370, 2021

38. Koga T, Hijioka S, Hisada Y, Maruki Y, Nagashio Y, Okusaka T, Saito Y. Endoscopic ultrasound-guided choledochoduodenostomy without fistula dilation using a novel fully covered metallic stent with a 5.9-Fr ultra-thin delivery system. Endoscopy, 53:E223-E225, 2021

39. Maehara K, Hijioka S, Sakamoto T, Maruki Y, Tamada K, Okusaka T, Saito Y. Novel biliary drainage of a choledochojejunal anastomotic stenosis using a double-balloon endoscope and forward-viewing endoscopic ultrasound. Endoscopy, 53:E242-E244, 2021

40. Hisada Y, Hijioka S, Ohba A, Nagashio Y, Kanai Y, Okusaka T, Saito Y. Novel endoscopic ultrasound-guided hepaticoduodenostomy using a forward-viewing echoendoscope for altered anatomy. Endoscopy, 53:E340-E342, 2021

41. Noguchi M, Shitara K, Kawazoe A, Yamamoto D, Takii Y, Saito Y, Sato T, Horimatsu T, Ishikawa H, Ito Y, Ito M, Ikematsu H. Short-term safety of adjuvant chemoradiotherapy after local resection for patients with high-risk submucosal invasive rectal cancer: a single-arm, multicenter phase II trial. Japanese journal of clinical oncology, 51:707-712, 2021

42. Sekiguchi M, Kakugawa Y, Takamaru H, Yamada M, Sakamoto T, Saito Y, Matsuda T. Risk of metachronous neoplastic lesions during post-polypectomy surveillance in individuals with advanced colorectal neoplasia at initial screening colonoscopy. Journal of gastroenterology and hepatology, 36:2230-2238, 2021

43. Saito Y, Oka S, Kawamura T, Shimoda R, Sekiguchi M, Tamai N, Hotta K, Matsuda T, Misawa M, Tanaka S, Iriguchi Y, Nozaki R, Yamamoto H, Yoshida M, Fujimoto K, Inoue H. Colonoscopy screening and surveillance guidelines. Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society, 33:486-519, 2021

44. Abe S, Takizawa K, Oda I, Mizusawa J, Kadota T, Ono H, Hasuike N, Yano T, Yamamoto Y, Horiuchi Y, Nagata S, Yoshikawa T, Terashima M, Muto M. Incidence and treatment outcomes of metachronous gastric cancer occurring after curative endoscopic submucosal dissection of undifferentiated-type early gastric cancer: Japan Clinical Oncology Group study-post hoc analysis of JCOG1009/1010. Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association, 24:1123-1130, 2021

45. Matsuda T, Fujii T, Sano Y, Kudo SE, Oda Y, Hotta K, Shimoda T, Saito Y, Kobayashi N, Sekiguchi M, Konishi K, Ikematsu H, Iishi H, Takeuchi Y, Igarashi M, Kobayashi K, Sada M, Yamaguchi Y, Hasuda K, Shinohara T, Ishikawa H, Murakami Y, Taniguchi H, Fujimori T, Ajioka Y, Yoshida S. Randomised comparison of postpolypectomy surveillance intervals following a two-round baseline colonoscopy: the Japan Polyp Study Workgroup. Gut, 70:1469-1478, 2020