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Prognostic Factors for Post Recurrence Survival in Resected Pathological Stage I Non-small Cell Lung Cancer



Prognostic Factors for Post Recurrence Survival in Resected Pathological Stage I Non-small Cell Lung Cancer



Yonago Acta Medica 60(4): 213-219



Recurrence of lung cancer after surgical resection is a major obstacle in the cure and long-term survival of patients and has become the most common cause of death. However, prognostic factors and efficacy of therapy after recurrence remain controversial. We evaluated the prognostic factors of post recurrence survival (PRS) in patients of resected stage I non-small cell lung cancer (NSCLC). Of the 551 patients who underwent surgery for stage I NSCLC between 2005 and 2013, we reviewed 89 (16.2%) patients who had recurrence. We examined PRS using the Kaplan-Meier method and multivariate Cox regression analyses. The median follow-up period after recurrence was 21.0 months. The median recurrence free interval (RFI) was 16.8 months. The 1-year PRS and 3-year PRS were 65.6% and 44.7%, respectively. Multivariate analysis revealed that size of primary lesion > 25 mm (P = 0.048), RFI ≤ 17 months (P = 0.048) and no treatment for recurrence (P < 0.001) were independent poor-prognosis factors of PRS. We further examined PRS in 66 patients who underwent any post recurrence therapy. For the patients who underwent treatment after recurrence, bone metastasis (P = 0.025) and treatment without epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs) (P = 0.049) were independent poor prognostic factors. PRS may be associated with characteristics of a recurrent lesion, including the biology of the recurrent tumor, RFI, recurrent site, the treatment for recurrence, rather than characteristics of primary lesion. Although further validation is needed, this information is important for the design of clinical trials for post-recurrence therapy.

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Accession: 065438077

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PMID: 29434490


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