Risk evaluation of splenic hilar lymph node metastasis and survival analysis of patients with advanced gastric cancer

There is no consensus regarding the influence of prophylactic no. 10 lymph node (LN) dissection in patients with advanced gastric cancer (AGC). We aimed to evaluate whether patients with AGC could benefit from no. 10 LN dissection and to explore the clinicopathological indicators of no. 10 LN metastasis. We analyzed the data of 218 patients with AGC who underwent standard D2 lymphadenectomy (SD2; n = 108) or modified D2 lymphadenectomy (MD2; n = 110) between January 2017 and January 2021. In addition, we examined factors influencing no. 10 LN metastasis in the SD2 group. Differentiation, tumor location, and no. 4 positive LNs were significantly correlated with no. 10 LN metastasis (P < 0.05). Borrmann classification, differentiation, depth of invasion, LN metastasis (N), and tumor size were found to correlate with survival in univariate analyses. Age, sex, extent of gastrectomy, tumor location, and extent of lymphadenectomy were not associated with survival (P > 0.05). The median survival times were 72.23 and 68.56 months for the SD2 and MD2 groups, respectively (P = 0.635). Postoperative major morbidity and mortality rates were 37.96% and 3.70% in the SD2 group, and 23.64% and 1.82% in the MD2 group, respectively. Based on our findings, prophylactic no. 10 lymphadenectomy may be recommended in patients with AGC who exhibit positive no. 4 LN status, poor differentiation, and tumors located on the greater curvature.