Abstract
Purpose
Subtotal gastrectomy (SG) has become a general option for distal gastric cancer. However, the availability of an organ-preserving approach for the treatment of remnant gastric cancer (RGC) is still controversial. Thus, the objective of the present study was to assess the safety and efficacy of SG for RGC by integrating data from published articles.
Methods
We searched the PubMed, Cochrane Library, and Web of Science databases for studies that compared SG versus total gastrectomy (TG) for RGC published from the inception of the databases until May 2020. A meta-analysis was performed using the Review Manager Version 5.0 software program from the Cochrane Collaboration.
Results
Three retrospective cohort studies with 144 patients were included. The meta-analysis revealed that the operative time of the SG group was significantly shorter than that in the TG group (MD: -34.84. 95% CI: -59.97- -9.71, P = 0.007). There was no significant difference in intraoperative blood loss (MD: -109.19. 95% CI: -240.37-21.99, P =0.10), length of postoperative hospital stay (MD: 0.40. 95% CI: -3.03-3.83, P = 0.82), postoperative complications (RR: 1.41. 95% CI: 0.76-2.63, P = 0.28), or recurrence (RR: 2.33, 95% CI: 0.48-11.44, P = 0.30). SG for RGC tended to be correlated with favorable 5-year overall survival; however, the association was not statistically significant (HR: 0.89, 95% CI: 0.63-1.26, P = 0.51).
Conclusion
Organ-preserving approaches such as SG may be a safe and feasible treatment option for early-stage RGC.
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Acknowledgments
The authors are grateful to Prof. Naoki Hiki (Department of Upper Gastrointestinal Surgery, Kitasato University School of Medicine, Kanagawa, Japan) for his useful advice.
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Ryota Otsuka conceived and designed the study. Koichi Hayano and Ryota Otsuka performed the literature search. Hironobu Goto, Yusuke Muneoka, Souya Nunobe, and Ryota Otsuka contributed to the data acquisition, analysis and interpretation. The manuscript was prepared by Ryota Otsuka under the supervision of Koichi Hayano, Masahiro Yoshida, and Hisahiro Matsubara. All authors read and approved the final manuscript.
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This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the institutional review board of Chiba University (No. 3737).
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Otsuka, R., Hayano, K., Yoshida, M. et al. Subtotal versus total gastrectomy for remnant gastric cancer: a systematic review and meta-analysis of observational studies. Langenbecks Arch Surg 406, 1379–1385 (2021). https://doi.org/10.1007/s00423-021-02144-6
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DOI: https://doi.org/10.1007/s00423-021-02144-6