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  • Title: Analysis of predictive factors for postoperative survival for non small cell lung carcinoma patients with unexpected mediastinal lymph nodes metastasis.
    Author: Wang S, Zhou W, Zhang H, Zhao M, Chen X.
    Journal: Thorac Cardiovasc Surg; 2014 Mar; 62(2):126-32. PubMed ID: 23585223.
    Abstract:
    OBJECTIVES: To discuss the predictive factors of postoperative survival for non small cell lung carcinoma (NSCLC) patients with clinical N0 stage but postoperative pathological N2 stage (cN0-pN2). METHODS: From January 1, 2005, to December 31, 2009, the clinical data of NSCLC patients with cN0-pN2 after radical surgery were retrospectively collected, and their survival information was collected through follow-up. The expiration date for follow-up was December 31, 2011. The predictive factors of postoperative survival for NSCLC patients with unexpected mediastinal lymph node metastasis were analyzed using Cox proportional hazards regression. RESULTS: A total of 263 patients were enrolled. The follow-up rate was 91.63%. The overall 1-, 3-, and 5-year survival rates were 94.6, 55.2, and 26.3%, respectively. Video-assisted thoracotomy surgery (VATS; odds ratio [OR] 0.659; 95% confidence interval [CI] 0.469 to 0.927; p = 0.017), multiple stations of metastatic mediastinal lymph nodes (OR 1.605; 95% CI 1.180 to 2.183; p = 0.003), and no adjuvant chemotherapy (OR 1.576; 95% CI 1.105 to 2.246; p = 0.012) were independent predictive factors for unexpected N2 patients. The median survival after VATS was superior to that after thoracotomy for patients with a single station of metastatic mediastinal lymph node (48.45 m vs 37.34 m, p = 0.018). The median survival without any adjuvant chemotherapy was inferior to that after adjuvant chemotherapy for patients with multiple stations of metastatic mediastinal lymph nodes (20.32 m vs 31.55 m, p = 0.001). CONCLUSION: The postoperative survival for NSCLC patients with cN0-pN2 was related to operational method, adjuvant chemotherapy, and the number of metastatic mediastinal lymph node stations. Patients with a single station of metastatic mediastinal lymph node are likely to benefit from VATS, whereas patients with multiple stations of metastatic mediastinal lymph nodes are likely to benefit from adjuvant chemotherapy.
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