淋巴结微转移是pN0食管鳞癌病人术后早期复发的危险因素  

Lymph node micrometastasis： a predictor of early tumor relapse after complete resection of histologically node-negative esophageal cancer

作　　者：李树海[1] 王洲 刘相燕[1] 刘凡英[1] 

机构地区：[1]山东大学附属省立医院胸外科,济南250021

出　　处：《中华胸心血管外科杂志》2009年第2期77-79,共3页Chinese Journal of Thoracic and Cardiovascular Surgery

摘　　要：目的探索病理检查无淋巴结转移的食管鳞癌病人中淋巴结微转移的发生率并评价淋巴结微转移对预后的影响。方法应用RT-PCR，对93例食管鳞癌术后病理诊断阴性的426站区域淋巴结进行进一步研究，检测MUCl基因mRNA的表达，从而诊断淋巴结微转移。对病人随访，Log-rank检验比较无病间隔期，Cox回归多因素分析判定独立的预后因素。结果32例（34．4％）的40站区域淋巴结中（9．4％）检测到MUC1基因mRNA的表达。无病间隔期与淋巴结微转移显著相关（P=0．0138）。淋巴结微转移者的5年生存率显著低于无淋巴结微转移者（P=0．004）。Cox回归多因素分析的结果显示T分期及淋巴结微转移是独立的预后因素。结论病理检查无淋巴结转移的食管鳞癌病人中淋巴结微转移的发生率为34．4％。无病间隔期与淋巴结微转移显著相关，T分期及淋巴结微转移是独立的预后因素。Objective To investigate the prevalence of lymph node micrometastasis （LNMM） based on the detection of MUC1 mRNA and the impact of these micrometastases on disease-free interval after resection of pathologic No （pNo） esophageal squamous cell cancer（ESCC）. Methods The subjects were 93 patients who underwent complete resection of pNo ESCC at our department between January, 1999 and January, 2001. All lymph nodes （426 stations ） obtained from these patients were reevaluated by RT-PCR to detect MUC1 mRNA. The diagnosis of LNMM was based on the detection of MUCI mRNA. Log-rank test was performed to compare the disease-free interval and Cox regression multivariate analysis was performed to determine independent prognostic factors. Results Micrometastasis was detected in 40 lymph node stations （9.4%） from 32 patients （34.4%）. Disease-free interval was significantly associated with LNMM （P=0.0138）. The 5-year survival rate of patients with LNMM was significantly lower than that of those without LNMM （P = 0. 004）. The results of multivariate analysis confirmed that T status and LNMM were independent prognostic factors. Conclusion The prevalence of LNMM in patients with pN0 ESCC was 34.4 % （32/93）. Thus, LNMM was significantly associated with disease-free interval. T status and LNMM were both independent prognostic factors.

关 键 词：食管肿瘤 淋巴转移 肿瘤复发 局部 

分 类 号：R686[医药卫生—骨科学]