Secondary sentinel lymph node tracing technique: a new method for tracing lymph nodes in radical gastrectomy for advanced XXXX .

@entity1 @entity5 @entity6693 @entity3 @entity356
OBJECTIVE: To explore the feasibility and clinical value of secondary sentinel lymph node (SSLN) tracing technique in radical gastrectomy for advanced @entity356 (AGC). METHODS: From January 2009 to June 2011, 247 @entity1 who suffered from @entity356 with @entity3 in No. 3 group lymph nodes were divided randomly into groups A and B. @entity6693 was injected into the peripheral tissue of the metastatic No. 3 group lymph nodes of 138 @entity1 in group A before @entity5 resections. SSLNs were traced and individual lymphadenectomies were carried out based on the biopsy results of the SSLNs. Standard D2 radical gastrectomies were carried out directly on 109 @entity1 in group B. Postoperative follow-up and survival analysis were carried out for @entity1 in both groups. RESULTS: SSLNs were found in 114 (82.6%) @entity1 in group A. Ninety of those @entity1 (78.9%) demonstrated existing @entity3 in SSLNs. According to Kaplan-Meier's method, the postoperative 3-year cumulative survival rates were 63.5% and 47.5%, and the median survival time were 40 and 36 months for the @entity1 of groups A and B, respectively (P<0.05). CONCLUSIONS: The SSLN tracing technique is feasible in radical gastrectomy for AGC. It gives surgeons important information about the terminal status of lymph node @entity3 and provides some scientific basis for individual lymphadenectomy.
