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Clin Lung Cancer ; 23(3): e176-e184, 2022 05.
Article in English | MEDLINE | ID: mdl-34690079

ABSTRACT

INTRODUCTION: The prognostic significance of mediastinal lymph node dissection (MLND) in elderly patients with non-small cell lung cancer (NSCLC) remains unclear. This post hoc analysis of a nationwide multicenter cohort study (JACS1303) evaluated the prognostic significance of MLND in octogenarians with NSCLC. MATERIALS AND METHODS: We included 622 octogenarians with NSCLC who underwent lobectomy. The median follow-up duration was 41.1 months. We compared survival and perioperative outcomes between patients who did and did not undergo MLND. RESULTS: In total, 414 (67%) patients underwent MLND (ND2 group), whereas 208 (33%) did not undergo MLND (ND0-1 group). The disease stage was more advanced in the ND2 group than in the ND0-1 group. Disease-free survival was slightly greater in the ND0-1 group with marginal significance (P= .079). In the matched cohort (N = 228), which mainly consisted of patients with clinical stage I disease (96%), there was no significant difference between the 2 groups regarding overall and disease-free survival (P= .908 and P = .916, respectively). Operative time and blood loss were significantly lower in the ND0-1 group than in the ND2 group in the entire cohort (P< .001 and P = .050, respectively) and in the matched cohort (P = .003 and P= .046, respectively). CONCLUSION: Based on a nationwide prospective database, we found limited prognostic impact of MLND, suggesting that MLND can be omitted for octogenarians with early-stage NSCLC.


Subject(s)
Carcinoma, Non-Small-Cell Lung , Lung Neoplasms , Aged , Aged, 80 and over , Carcinoma, Non-Small-Cell Lung/pathology , Cohort Studies , Humans , Lung Neoplasms/pathology , Lymph Node Excision , Mediastinum/pathology , Mediastinum/surgery , Neoplasm Staging , Octogenarians , Pneumonectomy , Prognosis , Retrospective Studies
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