[Treatment Results and Strategies for Early Gastric Cancer Patients Aged 80 Years or Older-How Should We Deal withNon -Curative ESD Cases ?].

With the aging population, the number ofearly gastric cancer patients aged 80 years or older is increasing. We clarified the outcome ofgastrectomy among early gastric cancer patients aged 80 years or older and examined the significance ofadditional gastrectomy for non-curative ESD cases. 1 ) Surgical outcomes in 90 cases ofearly gastric cancer patients aged 80 years or older with gastrectomy were analyzed. Gastrectomy was performed for patients up to 88 years of age and 84 cases (93.3%)were pStageⅠA. Three years and 5 years survival rates were 83.9% and 60.4%, respectively. The causes ofdeath included other disease in 28 cases, other cancer in 4 cases, and death associated with hospital stay in 1 case. 2 ) There were 28 non-curative ESD cases, including 6 T1a, 9 T1b1, and 13 T1b2. Among them, 8 additional gastrectomies were performed, but none were lymph node metastases and cancer residue at the proper muscle layer was identified in only 1 case. Three years and 5 years survival rates ofthe additional gastrectomy group were 100% and 60%, respectively. Although 2 years survival rate ofthe group without additional gastrectomy was 83.3%, there were no deaths due to gastric cancer. In elderly patients with early gastric cancer, considering the increasing the proportion deaths due to other diseases and the decreased quality of life after gastrectomy, the usefulness of additional gastrectomy for non-curative ESD is limited.