ObjectiveTo investigate the risk factors of hepatoduodenal lymph node (HDLN) metastasis in patients with advanced gastric cancer and its effect on prognosis. MethodsClinical datas of patients with advanced gastric cancer who underwent D2 radical gastrectomy for gastric cancer and HDLN dissection between Jan 2011 and Nov 2013 in department of general surgery of Ankang Central Hospital were retrospectively reviewed. Multivariate logistic regression analysis was performed to identify the independent risk factors associated with HDLN metastasis. Survival curves were performed to compare the survival rate of patients with or without HDLN metastasis and of patients with HDLN metastasis or with other lymph node metastasis. A Cox proportional hazards model was used for the multivariate analysis of risk factors for death in advanced gastric cancer. ResultsThe incidence of HDLN metastasis was 10.7% in patients with advanced gastric cancer. Multivariate logistic regression analyses revealed that the middle or lower stomach cancer (OR=6.014, P=0.002) and stage T3 or T4 (OR=5.133, P=0.021) were independent risk factors for HDLN metastasis. The 2-year overall survival (OS) rate was 36.7% in patients with HDLN metastasis. It was lower in patients with HDLN metastasis compared with those without (P=0.002). Limited to node-positive patients, patients with HDLN metastasis demonstrated decreased 2-year OS rate compared with node-positive patients without HDLN metastasis (P=0.027). Cox proportional hazard analysis identified poorly differentiated or undifferentiated cancer, stage of T3 or T4, and HDLN metastasis were independent poor prognostic factors in the patients with advanced gastric cancer (P < 0.05). ConclusionsCancer located in the middle or lower stomach, and stage T3 or T4 were independent risk factors for HDLN metastasis in patients with advanced gastric cancer. HDLN metastasis demonstrated a poor prognosis.
ObjectiveTo investigate the rule of lymph node metastasis in early gastric cancer (EGC) so as to provide a reasonable treatment. MethodsWe retrospectively analyzed the clinical data of 118 EGC patients who had been treated from January 2006 to December 2012,and a total of 8 potential factors associated with occurrence of EGC were evaluated by univariate analysis and multivariate logistic regression analysis. ResultsThe univariate analysis showed that ulcer,tumor size,depth of invasion and lymphatic involvement were correlated with lymph node metastasis (P<0.05).Multivariate logistic regression analysis showed that presence of an ulcer (OR=2.872),tumor of 3.0 cm or larger than that (OR=2.351),tumor invasion into the submucous layer (OR=3.461) and invasion into the lymphatic tubes (OR=1.784) were found to be independent risk factors. ConclusionLymph node metastasis of EGC is correlated with many factors,so EGC treatment choice should be made reasonably based on strict screening to exclude various risk factors before taking surgery.