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Long-term oncologic outcomes of robotic gastrectomy for gastric cancer compared with laparoscopic gastrectomy.

Authors
 Kazutaka Obama  ;  Yoo-Min Kim  ;  Dae Ryong Kang  ;  Taeil Son  ;  Hyoung-Il Kim  ;  Sung Hoon Noh  ;  Woo Jin Hyung 
Citation
 Gastric Cancer, Vol.21(2) : 285-295, 2018 
Journal Title
 Gastric Cancer 
ISSN
 1436-3291 
Issue Date
2018
MeSH
Adenocarcinoma/mortality ; Adenocarcinoma/surgery* ; Adult ; Aged ; Aged, 80 and over ; Cohort Studies ; Female ; Gastrectomy/methods* ; Humans ; Kaplan-Meier Estimate ; Laparoscopy ; Male ; Middle Aged ; Proportional Hazards Models ; Retrospective Studies ; Robotic Surgical Procedures/methods* ; Stomach Neoplasms/mortality ; Stomach Neoplasms/surgery* ; Time ; Treatment Outcome ; Young Adult
Keywords
Gastric cancer ; Laparoscopic gastrectomy ; Long-term outcome ; Robotic gastrectomy
Abstract
BACKGROUND: Initial experiences with robotic gastrectomy (RG) for gastric cancer have demonstrated favorable short-term outcomes, suggesting that RG is an effective alternative to laparoscopic gastrectomy (LG). However, data on long-term survival and recurrence after RG for gastric cancer have yet to be reported. The objective of this study was to assess long-term outcomes after RG compared with LG. METHODS: We retrospectively evaluated 313 and 524 patients who underwent RG or LG, respectively, for gastric cancer between July 2005 and December 2009. We compared long-term outcomes using the entire and a propensity-score matched cohort. RESULTS: The entire cohort analysis revealed no statistically significant differences in 5-year overall survival(OS) or relapse-free survival(RFS) (p = 0.4112 and p = 0.8733, respectively): 93.3% [95% confidence interval (CI) 89.9-95.6] and 90.7% (95% CI, 86.9-93.5) after RG and 91.6% (95% CI 88.9-93.7) and 90.5% (95% CI 87.6-92.7) after LG, respectively; hazard ratios for death and recurrence in the robotic group were 0.828 (95% CI, 0.528-1.299; p = 0.4119) and 0.968 (95% CI, 0.649-1.445; p = 0.8741), respectively. The propensity-matched cohort analysis demonstrated no statistically significant differences for 5-year OS or RFS (p = 0.5207 and p = 0.2293, respectively): 93.2% and 90.7% after RG and 94.2% and 92.6% after LG, respectively; hazard ratios for death and recurrence in the robotic group were 1.194 (95% CI, 0.695-2.062; p = 0.5214) and 1.343 (95% CI, 0.830-2.192; p = 0.2321), respectively. CONCLUSION: The potential technical superiority of robotic system over laparoscopy did not improve oncological outcomes after gastrectomy. Long-term oncological outcomes were not different between RG and LG. Nevertheless, robotic applications in minimally invasive gastric cancer surgery may be an oncologically safe alternative.
Full Text
https://link.springer.com/article/10.1007%2Fs10120-017-0740-7
DOI
10.1007/s10120-017-0740-7
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Surgery (외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Hyoung Il(김형일) ORCID logo https://orcid.org/0000-0002-6134-4523
Noh, Sung Hoon(노성훈) ORCID logo https://orcid.org/0000-0003-4386-6886
Son, Tae Il(손태일) ORCID logo https://orcid.org/0000-0002-0327-5224
Hyung, Woo Jin(형우진) ORCID logo https://orcid.org/0000-0002-8593-9214
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/165459
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