School of Medicine - Clinical MedicineGastroenterological Endoscopy




In the Department of Gastroenterological Endoscopy, we focus on treatment and research of diseases that require gastrointestinal endoscopy, specializing in endoscopic diagnosis of cancer. For early stage esophageal cancer, gastric cancer and colorectal cancer, we perform endoscopic submucosal dissection (ESD). For submucosal invasive gastric cancer that cannot be treated with ESD, we collaborate with the Department of Digestive Surgery to perform sentinel lymph node biopsy and full-thickness local excision. Also, we respond to requests for esophagogastroduodenoscopy from other clinical departments as promptly as possible. As there are many requests to perform endoscopic gastrostomy, we continue to focus on developing safer and more effective ways to perform gastrostomy without complications.
The main themes of our research include: (1) endoscopic diagnosis and treatment of early stage esophageal, gastric and colorectal cancer; (2) full-thickness local excision of submucosal invasive gastric cancer; (3) early stage cancer diagnosis using magnifying endoscopy; (4) safe gastrostomy; (5) development of endoscopic techniques.

Contact Information

TEL: 076-286-2211(内線5242) / FAX: 076-218-8416 / Email:


Professor and Chair

  • ITOH Tohru


  • URASHIMA Sachio

Associate Professor

  • KITAKATA Hidekazu

Senior Assistant Professor

  • HAMADA Kazu

Assistant Professor

  • OKAMURA Hideyuki
  • AZUKISAWA Sadahumi
  • KAMAI Junji

Research Achievements

Research Activities

  • K.Kawaura. T.Itoh, K.Hamada, H.Kitakata, S.Azukisawa, H.Okamura,
    S.Urashima, M.Sakurai, M.ishizaki
    Selection of Methods for Percutaneous Endoscopic Gastrostomy(PEG)that is more Safety and Useful Techniques on the Patients 
    : CLINICAL INVESTIGATION 7(3) 111-118 2017
  • K. Hamada, T. Itoh, K. Kawaura, S. Azukisawa, R. Kobatashi, H. Okamura,
    H. Kitakata, S. Urashima, T. Nojima, M. A. Fujino
    Findings of the margin around lesions by magnifying endoscopy with narrow-band imaging in early gastric carcinoma and intestinal metaplasia.
    Journal of Digestive Diseases 17: 377-382. 2016
  • T. Itoh, H. Kitakata, S. Kinami, K. Kawaura. K. Hamada, S. Azukisawa, R. Itoh, (K. Omote), T. Kosaka, (M. A. Hujino)
    New Treatment Strategy For Submucosa-Infiltrating Gastric Cancer Without Sentinel Node Metastasis: A Pilot Study Of Laparoscopy-Assisted Endoscopic Full-Thickness Resection In An In Vivo Porcine Model.
    ENDOSCOPIC FORUM for digestive disease: 31(1)17-26, 2015
  • K. Hamada, T. Itoh, H. Kitakata, K. Kawaura, S. Azukisawa,R. Itoh, H. Okamura, S. Urashima
    Examination Of Dark Reddish-Brown Urine(RBU) Caused By Endoscopyc Submucosal Dissection(ESD).
    ENDOSCOPIC FORUM for digestive disease: 31(1)33-39,2015
  • H. Kitakata, T. Itoh, S. Kinami, K. Kawaura, K. Hamada, T. Kosaka
    Sealed EFTR With Sentinel Lymph Node Navigation For Early Gastric Cancer
    OPERATON 69(10)1465-1471 2015

External Research Funding

  • Grant-in-Aid for Scientific Research(C) 2016-2018: Tohru Itoh
  • The Hokkoku Cancer Research Foundation 2015: Tohru Itoh
  • NOTES Research Grant 2010: Tohru Itoh
  • Grant-in-Aid for Scientific Research(C) 2008-2010: Tohru Itoh