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Impact of clinical tumor–node–metastasis staging on survival in gastric carcinoma patients receiving surgery

Gastric Cancer, 2017, Vol.20(3), pp.448-456 [Peer Reviewed Journal]

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  • Title:
    Impact of clinical tumor–node–metastasis staging on survival in gastric carcinoma patients receiving surgery
  • Author: Bando, Etsuro ; Makuuchi, Rie ; Tokunaga, Masanori ; Tanizawa, Yutaka ; Kawamura, Taiichi ; Terashima, Masanori
  • Found In: Gastric Cancer, 2017, Vol.20(3), pp.448-456 [Peer Reviewed Journal]
  • Subjects: Preoperative clinical stage ; Gastric cancer ; Survival outcome ; TNM classification
  • Language: English
  • Description: To access, purchase, authenticate, or subscribe to the full-text of this article, please visit this link: http://dx.doi.org/10.1007/s10120-016-0637-x Byline: Etsuro Bando (1), Rie Makuuchi (1), Masanori Tokunaga (1), Yutaka Tanizawa (1), Taiichi Kawamura (1), Masanori Terashima (1) Keywords: Preoperative clinical stage; Gastric cancer; Survival outcome; TNM classification Abstract: Background Preoperative clinical staging of gastric cancer is used to determine therapeutic strategies. However, the impact of the clinical stage on survival has not been completely investigated, although the relationship between pathologic staging and survival outcome has been reported. The aim of the present study was to clarify the predictability of patient survival based on clinical staging and to evaluate the usefulness of staging as an indicator for selecting the treatment modality. Methods A total of 3033 patients who underwent surgery for gastric cancer were included. A survival analysis was conducted based on the seventh edition of the tumor--node--metastasis (TNM) clinical staging system of the American Joint Committee on Cancer. The predictive ability of the TNM clinical stage for survival was evaluated by Harrell's C-index, a measure of the separation of survival distributions. Results The cumulative 5-year survival rates according to the clinical stage were 94.3 % (IA), 84.7 % (IB), 71.7 % (IIA), 56.1 % (IIB), 55.7 % (IIIA), 42.3 % (IIIB), 22.8 % (IIIC), and 9.1 % (IV). Although no significant difference was observed between clinical stages IIB and IIIA (p = 0.865), significant differences existed between all other clinical stages (p < 0.001). Harrell's C-index applied to these results was 0.825 (95 % confidence interval 0.819--0.831). Conclusions The seventh edition of the TNM clinical staging system has a strong prognostic ability with a satisfactory C-index and should be considered valuable for selecting therapeutic strategies for the treatment of gastric cancer. Author Affiliation: (1) Division of Gastric Surgery, Shizuoka Cancer Center, Shimonagakubo 1007, Nagaizumichou, Suntougun, Shizuoka, 411-0934, Japan Article History: Registration Date: 24/08/2016 Received Date: 20/05/2016 Accepted Date: 23/08/2016 Online Date: 01/09/2016 Article note: Electronic supplementary material The online version of this article (doi: 10.1007/s10120-016-0637-x) contains supplementary material, which is available to authorized users.
  • Identifier: ISSN: 1436-3291 ; E-ISSN: 1436-3305 ; DOI: 10.1007/s10120-016-0637-x

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