Surgical outcomes of elderly patients with Stage I gastric cancer from the nationwide registry of the Japanese Gastric C
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ORIGINAL ARTICLE
Surgical outcomes of elderly patients with Stage I gastric cancer from the nationwide registry of the Japanese Gastric Cancer Association Souya Nunobe1 · Ichiro Oda2 · Takashi Ishikawa3 · Kohei Akazawa3 · Hitoshi Katai4 · Yoh Isobe5 · Isao Miyashiro6 · Shunichi Tsujitani7 · Hiroyuki Ono8 · Satoshi Tanabe9 · Takeo Fukagawa10 · Satoshi Suzuki11 · Yoshihiro Kakeji11 · the Registration Committee of the Japanese Gastric Cancer Received: 3 April 2019 / Accepted: 14 August 2019 © The International Gastric Cancer Association and The Japanese Gastric Cancer Association 2019
Abstract Background The proportion of elderly patients undergoing surgery for gastric cancer is increasing. However, limited number of therapeutic outcomes in the elderly has been reported. Here we examined the surgical results based on a nationwide survey of elderly patients who underwent surgery for Stage I gastric cancer. Methods Data from 68,353 Stage I patients who underwent gastrectomy between 2001 and 2007 were retrospectively collected. The accumulated data were reviewed and analyzed by the Japanese Gastric Cancer Association registration committee. We first classified the patients as those aged ≤ 74 years and ≥ 75 years. We further classified those patients aged ≥ 75 years into groups by 5-year increments to examine their short- and long-term postoperative outcomes. Results Patients aged ≥ 75 years accounted for 46.5%. The 30-day mortality rate was 100 times a year in the survey. A nonhigh-volume center (non-HVC) was defined as a center in which gastric cancer surgery had been performed
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