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Article

Lymph node involvement and metastatic lymph node ratio influence the survival of malignant pleural mesothelioma: A French multicenter retrospective study

  • Authors:
    • Ilir Hysi
    • Françoise Le Pimpec-Barthes
    • Marco Alifano
    • Nicolas Venissac
    • Jérôme Mouroux
    • Jean-François Regnard
    • Marc Riquet
    • Henri Porte
  • View Affiliations / Copyright

    Affiliations: Department of Thoracic Surgery, Albert Calmette Hospital, Lille, France, Department of Thoracic Surgery, Georges Pompidou European Hospital, AP-HP, Paris, France, Department of Thoracic Surgery, Hôtel-Dieu Hospital, AP-HP, Paris, France, Department of Thoracic Surgery, Louis Pasteur Hospital, Nice, France
  • Pages: 415-421
    |
    Published online on: October 18, 2013
       https://doi.org/10.3892/or.2013.2800
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Abstract

Malignant pleural mesothelioma (MPM) is a rare tumor with disastrous evolution. The prognostic value of nodal involvement is still debated. We analyzed the impact of nodal involvement on overall survival (OS) in patients treated by multimodal therapy including extra pleural pneumonectomy (EPP). We evaluated the role, as a prognostic factor, of the metastatic lymph node ratio (LNR), corresponding to the number of involved nodes out of the total number of removed nodes. In this retrospective multicentric study, we reviewed the data of 99 MPM patients. Information regarding lymph node involvement was assessed from the final pathology reports. N1-N3 patients were pooled as N+ group. The OS, calculated by the Kaplan-Meier method, was compared using the log‑rank test. A multivariate Cox proportional hazards model was used to identify independent prognostic factors. For the whole cohort, median OS was 18.3 months and 5-year survival was 17.5%. N+ status reduced significantly the median survival (22.4 months for N0 patients vs 12.7 months for N+ patients, P=0.002). A lower metastatic LNR (≤13%) was associated with a significantly improved median survival (19.9 vs. 11.7 months, P=0.01). OS was not related to the number of involved or total removed lymph nodes. In multivariate analysis, only adjuvant radiotherapy (P=0.001) was identified as an independent positive prognostic factor. Metastatic LNR is a more reliable prognostic factor than the number of involved lymph nodes or the total number of removed nodes. However, it could not be identified as an independent prognostic factor.
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Copy and paste a formatted citation
Spandidos Publications style
Hysi I, Le Pimpec-Barthes F, Alifano M, Venissac N, Mouroux J, Regnard J, Riquet M and Porte H: Lymph node involvement and metastatic lymph node ratio influence the survival of malignant pleural mesothelioma: A French multicenter retrospective study. Oncol Rep 31: 415-421, 2014.
APA
Hysi, I., Le Pimpec-Barthes, F., Alifano, M., Venissac, N., Mouroux, J., Regnard, J. ... Porte, H. (2014). Lymph node involvement and metastatic lymph node ratio influence the survival of malignant pleural mesothelioma: A French multicenter retrospective study. Oncology Reports, 31, 415-421. https://doi.org/10.3892/or.2013.2800
MLA
Hysi, I., Le Pimpec-Barthes, F., Alifano, M., Venissac, N., Mouroux, J., Regnard, J., Riquet, M., Porte, H."Lymph node involvement and metastatic lymph node ratio influence the survival of malignant pleural mesothelioma: A French multicenter retrospective study". Oncology Reports 31.1 (2014): 415-421.
Chicago
Hysi, I., Le Pimpec-Barthes, F., Alifano, M., Venissac, N., Mouroux, J., Regnard, J., Riquet, M., Porte, H."Lymph node involvement and metastatic lymph node ratio influence the survival of malignant pleural mesothelioma: A French multicenter retrospective study". Oncology Reports 31, no. 1 (2014): 415-421. https://doi.org/10.3892/or.2013.2800
Copy and paste a formatted citation
x
Spandidos Publications style
Hysi I, Le Pimpec-Barthes F, Alifano M, Venissac N, Mouroux J, Regnard J, Riquet M and Porte H: Lymph node involvement and metastatic lymph node ratio influence the survival of malignant pleural mesothelioma: A French multicenter retrospective study. Oncol Rep 31: 415-421, 2014.
APA
Hysi, I., Le Pimpec-Barthes, F., Alifano, M., Venissac, N., Mouroux, J., Regnard, J. ... Porte, H. (2014). Lymph node involvement and metastatic lymph node ratio influence the survival of malignant pleural mesothelioma: A French multicenter retrospective study. Oncology Reports, 31, 415-421. https://doi.org/10.3892/or.2013.2800
MLA
Hysi, I., Le Pimpec-Barthes, F., Alifano, M., Venissac, N., Mouroux, J., Regnard, J., Riquet, M., Porte, H."Lymph node involvement and metastatic lymph node ratio influence the survival of malignant pleural mesothelioma: A French multicenter retrospective study". Oncology Reports 31.1 (2014): 415-421.
Chicago
Hysi, I., Le Pimpec-Barthes, F., Alifano, M., Venissac, N., Mouroux, J., Regnard, J., Riquet, M., Porte, H."Lymph node involvement and metastatic lymph node ratio influence the survival of malignant pleural mesothelioma: A French multicenter retrospective study". Oncology Reports 31, no. 1 (2014): 415-421. https://doi.org/10.3892/or.2013.2800
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