Abstract
Background
The prognosis for patients with liver metastases from gastric cancer is very poor. Nevertheless, standard therapeutic strategies have not been established yet. The impact of hepatic surgical treatment on survival of patients with metachronous liver metastases from gastric cancer still remains controversial.
Methods
We conducted a retrospective analysis on records of 436 patients who received radical gastrectomy (with D2 lymphadenectomy, regardless of hepatic surgical treatment) for gastric cancer with metachronous (≥ 3 months after gastrectomy) liver metastases in our center between 2001 and 2016. All patients were followed until 2017/10/31 or withdrawn from the follow-up because of death.
Results
The median interval for non-hepatic metastases of the 436 patients who underwent radical gastrectomy is 14 months. T (P = 0.041), N (P = 0.023) and lymphovascular invasion (P < 0.001) were independent predictors affecting liver metastases-free interval. The overall survival rates for the 436 patients were 44.5, 29.7, 16.3, and 16.3% at 1, 2, 3, and 5 years respectively since treatment of hepatic metastases, with a median survival time of 11 months. N (P = 0.025), extent of liver metastases (H) (H2 vs. H1, P = 0.036; H3 vs. H1, P < 0.001), and treatment of liver metastatic lesions (P < 0.001) were significant independent prognostic factors for survival after presence of liver metastases. Among H1 and H2 patients, median survival in hepatic surgical treatment group was significantly longer than that in systemic chemotherapy alone group (25 vs. 11 months, P = 0.015).
Conclusions
Liver examinations should be performed during the first 2 years after gastric surgery and continued for 5 years for high-risk patients. Active therapeutic strategies may prolong patients’ survival compared with supportive treatment alone. Patients with H1, H2 metachronous liver metastases may be considered appropriate candidates for hepatic surgical treatment before embarking on systemic chemotherapy alone.
Trial registration
ISRCTN Registry (Retrospectively registered; Reference number: 35067; Date: 02/04/2018).
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Abbreviations
- GC:
-
gastric carcinoma
- GCCM:
-
colorectal metastases from gastric cancer
- GCMLM:
-
gastric cancer with metachronous liver metastases
- GCLM:
-
liver metastases from gastric cancer
- TACE:
-
transcatheter arterial chemoembolization
- MCT:
-
microwave coagulation therapy
- MST:
-
median survival time
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Acknowledgements
The authors are grateful to all doctors at the relevant departments for their clinical practice on the enrolled patients.
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This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
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Yibin Xiao designed the research; Yibin Xiao, Bo Zhang, and Yulian Wu collected and analyzed the data; Yibin Xiao wrote and revised the manuscript; Yulian Wu provided analytic tools and checked the accuracy of the data. All the authors approved the version to be published.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This study was reviewed and approved by the ethical committee of the Second Affiliated Hospital, School of Medicine, Zhejiang University. All patients were followed up by phone call or SMS and explained clearly that data collected will be intended for publication. All methods were performed in accordance with the relevant guidelines and regulations.
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The authors declare that they have no conflict of interest.
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Xiao, Y., Zhang, B. & Wu, Y. Prognostic analysis and liver metastases relevant factors after gastric and hepatic surgical treatment in gastric cancer patients with metachronous liver metastases: a population-based study. Ir J Med Sci 188, 415–424 (2019). https://doi.org/10.1007/s11845-018-1864-4
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DOI: https://doi.org/10.1007/s11845-018-1864-4