The Prognosis According to Patterns of Mediastinal Lymph Node Metastasis in Pathologic Stage IIIA/N2 Non-Small Cell Lung Cancer
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±èµµ¿Ï(Kim Do-Wan) - Chonnam National University School of Medicine Department of Thoracic and Cardiovascular Surgery
À±ÁÖ½Ä(Yun Ju-Sik) - Chonnam National University Medical School Department of Thoracic and Cardiovascular Surgery
¼Û»óÀ±(Song Sang-Yun) - Chonnam National University Medical School Department of Thoracic and Cardiovascular Surgery
³ª±¹ÁÖ(Na Kook-Joo) - Chonnam National University Medical School Department of Thoracic and Cardiovascular Surgery
Abstract
Background : The aim of this study is to evaluate prognostic factors for survival in pathologic stage IIIA/N2 non-small-cell lung cancer (NSCLC), to identify the prognostic significance of the metastatic patterns of mediastinal lymph nodes (MLNs) relating to survival and to recurrence and metastasis.
Methods : A total of 129 patients who underwent radical resection for pathologic stage IIIA-N2 NSCLC from July 1998 to April 2011 were retrospectively reviewed. The end points of this study were rates of loco-regional recurrence and distant metastasis, and survival.
Results : The overall 5-year survival rate was 47.4%. A univariate analysis showed that age, pathologic T stage, and adjuvant chemotherapy were significant prognostic factors, while in multivariate analysis, pathologic T stage and adjuvant chemotherapy were significant prognostic factors. The metastasis rate was higher in patients with multistation N2 involvement and with more than 3 positive MLNs. Further, non-regional MLN metastasis was associated with a higher loco-regional recurrence rate.
Conclusion : Pathologic T stage and adjuvant chemotherapy were independent prognostic factors for long-term survival in pathologic stage IIIA/N2 NSCLC. The recurrence and the metastasis rate were affected by the metastatic patterns of MLNs. These results may be helpful for planning postoperative therapeutic strategies and predicting outcomes.
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Carcinoma, non-small cell, lung, Mediastinal lymph nodes, Neoplasm metastasis, Lung surgery
KMID :
0364020140470010013
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Pathologic T stage and adjuvant chemotherapy were independent prognostic factors for long-term survival in pathologic stage IIIA/N2 NSCLC.