Objective: To investigate the risk factors associated with metastasis of lymph node along superior mesenteric vein (No.14v) in gastric cancer.
Methods: Clinicopathological data of 70 gastric cancer patients undergoing gastrectomy with No.14v dissection between September 2010 and October 2011 in the Gulou Hospital, Nanjing University School of Medicine were analyzed retrospectively. Associated factors of No.14v lymph nodes metastasis were investigated.
Results: Of 70 cases, positive No.14v lymph node metastasis was found in 8 cases (11.4%). Univariate analysis showed that the No.14v metastasis was associated with tumor location (P=0.019), tumor size (P=0.004), depth of invasion (P=0.001), TNM staging (P=0.006), and other lymph node group metastasis (all P<0.05), and was not associated with age, gender, Borrmann classification, Lauren classification or histological type (all P>0.05). Multivariate analysis revealed that lntra-pyloric lymph nodes (No.6) metastasis was an independent risk factor of No.14v metastasis (P<0.05). The predictive accuracy was 94.3% (66/70) and false-negative rate was 1.7% (1/60) for No.6 lymph node metastasis.
Conclusion: No.6 lymph node metastasis status can predict the metastasis of No.14v more accurately.