Five-year survival analysis of surgically resected gastric cancer cases in Japan: a retrospective analysis of more than 100,000 patients from the nationwide registry of the Japanese Gastric Cancer Association (2001-2007)

Affiliations

¹ Department of Gastric Surgery, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan. hkatai@ncc.go.jp.
² Department of Medical Informatics, Niigata University Medical and Dental Hospital, Niigata, Japan.
³ Department of Surgery, National Hospital Organization Tokyo Medical Center, Tokyo, Japan.
⁴ Department of Surgery, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan.
⁵ Department of Endoscopy, National Cancer Center Hospital, Tokyo, Japan.
⁶ Department of Surgery and Science, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan.
⁷ Endoscopy Division, Shizuoka Cancer Center, Shizuoka, Japan.
⁸ Division of Therapeutic Endoscopy, Kitasato University School of Medicine, Kanagawa, Japan.
⁹ Department of Gastric Surgery, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
¹⁰ Department of Gastroenterological Surgery, Cancer Institute Ariake Hospital, Tokyo, Japan.
¹¹ Division of Gastrointestinal Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Hyogo, Japan.
¹² Department of Surgery, Niigata Cancer Center Hospital, Niigata, Japan.

PMID: 28417260
DOI: 10.1007/s10120-017-0716-7

Five-year survival analysis of surgically resected gastric cancer cases in Japan: a retrospective analysis of more than 100,000 patients from the nationwide registry of the Japanese Gastric Cancer Association (2001-2007)

Hitoshi Katai et al. Gastric Cancer. 2018 Jan.

. 2018 Jan;21(1):144-154.

doi: 10.1007/s10120-017-0716-7. Epub 2017 Apr 17.

Affiliations

¹ Department of Gastric Surgery, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan. hkatai@ncc.go.jp.
² Department of Medical Informatics, Niigata University Medical and Dental Hospital, Niigata, Japan.
³ Department of Surgery, National Hospital Organization Tokyo Medical Center, Tokyo, Japan.
⁴ Department of Surgery, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan.
⁵ Department of Endoscopy, National Cancer Center Hospital, Tokyo, Japan.
⁶ Department of Surgery and Science, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan.
⁷ Endoscopy Division, Shizuoka Cancer Center, Shizuoka, Japan.
⁸ Division of Therapeutic Endoscopy, Kitasato University School of Medicine, Kanagawa, Japan.
⁹ Department of Gastric Surgery, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
¹⁰ Department of Gastroenterological Surgery, Cancer Institute Ariake Hospital, Tokyo, Japan.
¹¹ Division of Gastrointestinal Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Hyogo, Japan.
¹² Department of Surgery, Niigata Cancer Center Hospital, Niigata, Japan.

PMID: 28417260
DOI: 10.1007/s10120-017-0716-7

Abstract

Background: The aim of this retrospective study was to investigate the tumor characteristics, surgical details, and survival distribution of surgically resected cases of gastric cancer from the nationwide registry of the Japanese Gastric Cancer Association.

Methods: Data from 118,367 patients with primary gastric carcinoma who underwent resection between 2001 and 2007 were included in the survival analyses. The 5-year survival rates were calculated for various subsets of prognostic factors.

Results: The median age of the patients was 67 years. The proportions of patients with pathological stage (Japanese Gastric Cancer Association) IA, IB, II, IIIA, IIIB, and IV disease were 44.0%, 14.7%, 11.7%, 9.5%, 5.0%, and 12.4% respectively. The death rate within 30 days of operation was 0.5%. The 5-year overall survival rate in the 118,367 patients who were treated by resection was 71.1%. The 5-year overall survival rates of patients with pathological stage IA, IB, II, IIIA, IIIB, and IV disease were 91.5%, 83.6%, 70.6%, 53.6%, 34.8%, and 16.4% respectively. The 5-year disease-specific survival rates in the patients with pT1 (mucosa) disease after D1+ dissection of lymph node station no. 7 (D1 + α), D1+ dissection of lymph node station nos. 7, 8, and 9 (D1+ β), and D2 lymphadenectomy were 99.4%, 99.6%, and 99.1% respectively. The 5-year disease-specific survival rates in the patients with pT1 (submucosa) disease after D1 + α, D1 + β, and D2 lymphadenectomy were 97.3%, 98.1%, and 96.9% respectively.

Conclusion: Detailed analyses of the data from more than 100,000 patients show the recent trends of the outcomes of gastric cancer treatment in Japan and provide baseline information for use by medical communities around world.

Keywords: Gastric cancer; Modified gastrectomy; Nationwide registry; Survival.

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Five-year survival analysis of surgically resected gastric cancer cases in Japan: a retrospective analysis of more than 100,000 patients from the nationwide registry of the Japanese Gastric Cancer Association (2001-2007)

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Five-year survival analysis of surgically resected gastric cancer cases in Japan: a retrospective analysis of more than 100,000 patients from the nationwide registry of the Japanese Gastric Cancer Association (2001-2007)

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