LECS is an abbreviation for Laparoscopy and Endoscopy Cooperative Surgery. By performing endoscopic treatment and laparoscopic surgery at the same time, the combination represents a new surgical method that enables tumor resection with minimal invasion. It has been performed on an experimental basis in diseases including gastric submucosal tumors.

The LECS Study Group is working to improve and promote both the safety and technological advancement of LECS. In recent years, there have been an increasing number of LECS surgeries being performed overseas. It is our hope that the concept of this method--originating in Japan--will gradually spread worldwide. In order to respond to the expected increase in international demand for this method, the LECS Study Group has decided to include English language presentations during its seminars. This will enable non-Japanese speaking medical professionals the opportunity to participate in the future.

On May 29, 2010, the LECS Study Group held its first research meeting at Yoshida Auditorium, Ariake Hospital, Cancer Institute. Starting with an initial group of 20 attendees and 3 presentations, By the 15th gathering, we expect the number of participants to exceed 100, and presentations to be greater than 10, on a regular basis. Seminars are held twice yearly, in spring and fall. As the promise of the LECS method continues to grow, our mission is to help expand the LECS technique beyond the borders of Japan, so that we might be able to help more patients, worldwide

Naoki Hiki, M.D., Chairman, LECS Study Group
Souya Nunobe, M.D., Secretary General, LECS Study Group

At our 21st seminar which took place on the last day of the 93rd Annual Meeting of the Japanese Gastric Cancer Association, March 5, 2021, at Zoom Webinar, drew 178 participants. This number represented a high level of support and interest among medical professionals toward the future of the LECS technique. We are happy to report that during this time, we have seen an increase in participation among professors of internal medicine.
Date March 5, 2021
Venue Zoom Webinar
Registration
fee		 None
Coordinator &
Seminar Chair
 Takuto Hikichi, M.D., Department of Endoscopy, Fukushima Medical University Hospital
Zenichiro Saze, M.D., Department of Gastrointestinal Tract Surgery, Fukushima Medical University Hospital
Program Organizing Committee:18:00〜18:20　
Seminar:18:30〜21:00
Networking opportunity to exchange information: Cancelled
Cosponsor LECS Study Group
Covidien Japan Inc.
<Program>
Opening Remarks
18:30-18:35		 Takuto Hikichi, M.D., Department of Endoscopy, Fukushima Medical University Hospital
Zenichiro Saze, M.D., Department of Gastrointestinal Tract Surgery, Fukushima Medical University Hospital
Mini lecture 1:
18:35-18:55		 "Current status of duodenal ESD and expectation for D-LECS."
Speaker: Shu Hoteya, M.D., Department of Gastroenterology, Toranomon Hospital
Moderator:
Hideki Kobara, M.D., Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University
Zenichiro Saze, M.D., Department of Gastrointestinal Tract Surgery, Fukushima Medical University Hospital
Theme 1:
18:55-19:35		 "Tough cases 〜 What should we have done?"
Moderator:
Katsumi Yamamoto, M.D., Department of Gastroenterology, Japan Community Healthcare Organization Osaka Hospital
Yuji Akiyama, M.D., Department of Surgery, Iwate Medical University School of Medicine
1-1 "A case of recurrence of intramucosal duodenum cancer after LECS"
Sho Takeda, M.D., Okayama University Hospital
1-2 "Diagnosis of tumor localization is sometimes difficult in performing DLECS"
Toshihiro Kushibiki, M.D., Department of Surgery, Tonan Hospital
1-3 "D-LECS for superficial non-ampullary duodenal epithelial tumor. -Try and Challenge-"
Yuji Onoda, M.D., Kagawa prefectural central hospital, Department of Gastroenterological Surgery
1-4 "Two cases of cardiac GIST for which operative method was changed during LECS"
Takahiko Nakamura, M.D., Department of Gastroenterology, Japan Community Healthcare Organization Osaka Hospital
1-5 "A case of esophageal carcinosarcoma resected by endoscopic submucosal dissection and retrieved by laparoscopy"
Naoki Yorita, M.D., Department of Gastroenterology and Metabolism, Hiroshima University Hospital
19:35-19:45 Coffee break (10 min.)

Mini lecture 2:
19:45-20:05		 "I received gastric LECS."
Speaker: Hisashi Doyama, M.D., Department of Gastroenterology, Ishikawa Prefectural Central Hospital
Moderator:
Takuto Hikichi, M.D., Department of Endoscopy, Fukushima Medical University Hospital
Hiroaki Musha, M.D., Department of Surgery I, Yamagata University Graduate School of Medical Science

Theme 2:
20:05-20:53		 "Inventions and developments on LECS and LECS related techniques"
Moderator:
Waku Hatta, M.D., Division of Gastroenterology, Tohoku University Graduate School of Medicine
Shingo Kanaji, M.D., Division of Gastrointestinal Surgery, Department of Surgery, Kobe University Graduate School of Medicine
2-1 "Endoscopic resection technique in Inverted LECS for gastric submucosal tumor"
Shoichi Yoshimizu, M.D., Department of Gastroenterology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
2-2 "LECS for gastric cancer with high risk co-morbidity."
Marie Washio, M.D., Department of Upper Gastrointestinal Surgery, Kitasato University Hospital
2-3 "Experience of robot-assisted SNNS + NEWS for early gastric cancer"
Yujiro Isobe, M.D., Division of Gastric Surgery, Shizuoka Cancer Center　
2-4 "30 cases of LECS in our institution -Achieve EFTR-"
Kazutoshi Higuchi, M.D., Department of Gastroenterology, Nippon Medical School
2-5 "Investigation of endoscopic full thickness closure, focusig on endoluminal invert and preventing collapse: EVL+OTSC"
Noriko Nishiyama, M.D., Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University
2-6 "Needlescopic and Endoscopic Cooperative Surgery (NECS) for colonic adenoma"
Yukiharu Hiyoshi, M.D., Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University
Closing remarks:
20:53-20:58		 Yorimasa Yamamoto, M.D., Showa University Fujigaoka Hospital, Division of Gastroenterology
 
Call for
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Abstract Outline Form
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＜21st LECS Study Seminar Sponsors＞
　MC Medical, Inc 　Olympus Corporation
　Kaken Pharmaceutical Co.,Ltd. 　Camel Coffee Co., Ltd.
　Covidien Japan Inc.
　Johnson & Johnson K.K.
　Teleflex Medical Japan, Ltd.