| [ Summary ] |
The survival and clinicopathological features of patients with resected early gastric cancer are presented, and the problems of endoscopic submucosal dissection/endoscopic mucosal resection (ESD/EMR) are examined. Evidence levels regarding the validity of most contents are low in the ESD/EMR guidelines, and rapid accumulation of evidence is required. After adequate training, expert endoscopists can perform ESD, which has improved the en bloc resection rate and curability rate but also involves a risk of bleeding and perforation. There is not enough evidence on the validity and safety of ESD for an expanded indication, and this procedure should be performed with caution. The survival of patients with early gastric cancer is satisfactory even when the lymph nodes are positive, and the addition of surgical treatments should be recommended after non‒curative resection. It is necessary to follow‒up patients for 10 years after ESD/EMR with annual or biannual endoscopies. |