Erschienen in:
14.02.2018 | Thoracic Oncology
Survival Impact of Stations of Pathological Lymph Nodes in N2 Non-small Cell Lung Cancer in a French Hospital
verfasst von:
Christelle Clément-Duchêne, MD, PhD, Amandine Luc, MS, Jean-Matthieu Casse, MD, Jean-Michel Vignaud, MD, PhD, Stéphanie Lacomme, MS, Valentine Anne, MD, Joëlle Siat, MD, Olivier Ménard, MD, Yves Martinet, MD, PhD
Erschienen in:
Annals of Surgical Oncology
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Ausgabe 5/2018
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Abstract
Background
The prognosis of lung cancer remains poor; only 20% of patients can undergo surgery. N2 non-small cell lung cancer (NSCLC) is a heterogeneous disease. We conducted a retrospective study to analyze the impact of N2 location on survival.
Methods
This study included 342 NSCLC with N2 involvement between 1988 and 2014. Patient-related data were collected through the CRB biobank and included demographic, therapeutic, and survival data. Survival was analyzed according to Kaplan-Maier method. Cox’s regression analysis and analysis of variance (ANOVA) were used to determine factors significantly associated with survival.
Results
The population average age was 61.6 years; 82.2% were men, a majority were former smokers (87.1%), and 45.3% had adenocarcinoma. The main prognostic factors were male gender (p = 0.01), number of nodes (p < 0.0001), and tumor size (p < 0.0001). N2 disease had a poor survival (16 months) compared with N0 (32 months) and N1 (21.1 months) disease (p < 0.0001). The patients with involvement of station 4 (survival = 17.8 months) seemed to have a prognosis between those with station 7 (survival = 10.5 months) and N1 (survival = 22.6 months), p = 0.0005.
Conclusions
N2 location has a prognostic impact in surgically NSCLC, and station 4 involvement has a better prognostic than station 7.