Journal
ONCOTARGETS AND THERAPY
Volume 11, Issue -, Pages 1037-1044Publisher
DOVE MEDICAL PRESS LTD
DOI: 10.2147/OTT.S157378
Keywords
gastric cancer; tumor location; clinicopathologic features; prognosis; distal gastric cancer; proximal gastric cancer
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Funding
- Health and Family Planning Commission of Heilongjiang Province [2014-364]
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Background and objectives: The dismal prognosis of gastric cancer patients is a global problem. We aim to evaluate the clinicopathologic features and prognostic factors of proximal and distal gastric cancer. Materials and methods: Gastric cancer cases diagnosed and treated at the same surgical unit between 2007 and 2010 were reviewed. Follow-up data from all patients were collected for at least 5 years until 2015. A total of 964 patients were studied (distal gastric cancer [DG], n=777 and proximal gastric cancer [PG], n=187). Results: DG patients had a relatively higher percentage of females, more thorough therapy (R0 [D0/D1/D2]), fewer combined organ resections, younger age, smaller tumors (. 5 cm), shorter surgery durations, less blood loss during surgery, and a relatively lower percentage of nodal metastases and a TNM stage of 4 (p<.0.05). A significantly higher 5-year survival rate was observed in DG patients compared to PG patients ( DG: 51%, PG: 28%; p<.0.001). A multivariate analysis demonstrated that tumor size, blood loss during surgery, surgery approach of lymph node dissection, treatment with palliative surgery, histopathologic type, TNM stage, and tumor location were independent predictors of poor outcome. Conclusion: The different characteristics and prognosis of DG and PG cases have implications for the development of guiding strategies for a surgical program and assessment of prognosis of gastric cancer patients based on tumor location.
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