摘要目的 分析胸中段食管鳞癌根治术后腹腔淋巴结复发危险因素,并依据结果讨论术后放疗靶区设计方案.方法 对2007-2012年间收治的913例胸中段食管鳞癌根治性术后患者进行回顾分析,分析影响患者治疗后出现腹腔淋巴结复发的因素,并比较高危人群不同治疗方式的疗效.对计数资料行x2检验,Kaplan-Meier法计算OS并Logrank单因素分析,Logistic多元回归方程分析与腹腔淋巴结复发相关影响因素.结果 疗后37例出现腹腔淋巴结复发,复发率为4.1％;复发部位共53个.单因素分析结果显示未/低分化鳞癌、pT3+4期、术后病理阳性淋巴结数≥3个和术后显示腹腔淋巴结阳性为影响腹腔淋巴结复发因素(P=0.032、0.001、0.009、0.000).多元回归分析病理T分期、术后病理显示腹腔淋巴结阳性为影响腹腔淋巴结复发因素(P=0.011、0.000).术后放疗可以提高术后腹腔淋巴结阳性和pT3+4期患者OS和LC,而对降低DMFS作用有限.结论 T分期和术后腹腔淋巴结阳性为胸中段食管鳞癌患者根治术后腹腔淋巴结复发的重要危险因素,建议对pT3+T4期期和术后病理显示腹腔淋巴结阳性患者进行术后辅助治疗.

abstractsObjective To analyze the risk factors for abdominal lymph node recurrence after radical surgery in patients with middle thoracic esophageal squamous cell carcinoma (TE-SCC),and to design the target volume for postoperative radiotherapy based on the results.Methods A retrospective study was performed among 913 patients with middle TE-SCC undergoing radical surgery who were admitted to our hospital from 2007 to 2012.Influencing factors were analyzed for abdominal lymph node recurrence after treatment.The efficacy was compared between different treatment methods in the high-risk population.Comparison of categorical data was made by chi-square test.The overall survival rates (OS) were calculated by the Kaplan-Meier method and analyzed by the univariate log-rank analysis.The influencing factors for abdominal lymph node recurrence were analyzed by the multivariate logistic regression equation.Results After treatment,37 patients had abdominal lymph node recurrence,yielding a recurrence rate of 4.1％.A total of 53 recurrent sites were found.The univariate analysis showed that no/low differentiation,pT3+4 stage,no less than 3 positive postoperative lymph nodes,and positive postoperative abdominal lymph nodes were influencing factors for abdominal lymph node recurrence (P =0.032,0.001,0.009,0.000).The multivariate regression analysis showed that pathological T staging and positive postoperative abdominal lymph nodes were influencing factors for abdominal lymph node recurrence (P=0.011,0.000).For patients with pT3+4 stage disease and positive postoperative abdominal lymph nodes,postoperative radiotherapy improved OS and local control rates but failed to reduce the distant metastasis-free rate.Conclusions T staging and positive postoperative abdominal lymph nodes are important risk factors for abdominal lymph node recurrence after radical surgery in patients with middle TE-SCC.Postoperative adjuvant therapy is recommended for patients with pT3+4 stage disease and positive postoperative abdominal lymph nodes.