Abstract
Background
The question that whether the criteria for endoscopic resection of early gastric non-cardia cancer (GNCC) is appropriate for early gastric cardia cancer (GCC) remains unclear. Thus, our aim was to evaluate the influence of tumor location on lymph node metastasis (LNM) and overall survival (OS) for early gastric cancer (GC).
Methods
A total of 5440 early GC patients in the Surveillance, Epidemiology, and End Results (SEER) database were identified. Multivariable analysis was performed to evaluate the influence of tumor location on LNM and OS for early GC.
Results
The rate of LNM was 17.48% for early GCC patients (232/1327) and 18.62% for early GNCC patients (766/4113). The early GCC patients experienced no significantly different risk of LNM compared with the early GNCC patients (adjusted OR 0.92, 95% CI 0.76–1.12, P = 0.405). The early GC patients were further stratified by node status. Tumor location was not a predictor of OS for node-negative early GC patients (adjusted HR 1.07, 95% CI 0.96–1.21, P = 0.225) but a predictor of OS for node-positive early GC patients (adjusted HR 1.80, 95% CI 1.48–2.20, P < 0.001).
Conclusions
Tumor location was not a predictor of LNM for early GC patients. Moreover, tumor location was not a predictor of OS for node-negative early GC patients. Thus, the criteria for endoscopic resection of early GNCC might be appropriate for the treatment of early GCC.
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Funding
This project is supported by Hainan Provincial Natural Science Foundation of China (819QN375, 2017CXTD0012) and Hainan Provincial Key R&D Program (ZDYF2018101).
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Study conception and design: Z.L.Y., Z.Y. C., C.X.W., Z.K.C., and J.H.L.. Acquisition of data: Z.L.Y., Z.Y. C., C.X.W., Z.K.C., and J.H.L.. Analysis and interpretation of data: all authors. Drafting of manuscript: all authors. Critical revision: all authors.
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All the patients in this study were included from the SEER database, and we have got the permission of using the data.
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ZeLong, Y., ZhenYu, C., JianHai, L. et al. Influence of Tumor Location on Lymph Node Metastasis and Survival for Early Gastric Cancer: a Population-Based Study. J Gastrointest Surg 24, 1978–1986 (2020). https://doi.org/10.1007/s11605-019-04367-x
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DOI: https://doi.org/10.1007/s11605-019-04367-x