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


Important Notice (as of August 5th)

In consideration of the recent influence of the COVID-19, we have again made the difficult decision NOT to hold the 21st LECS seminar as scheduled (November 4th in Kobe).

The postponed 21st seminar will be held in March 2021 in accordance with the 93rd Annual Meeting of the Japanese Gastric Cancer Association.

Detailed schedule will be announced on our website later.

We pray for everyone's health and heartiness and look forward to seeing you in Osaka in March.

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