ArticleThoracic cancer2022
Postoperative radiotherapy improves survival of patients with ypN2 non-small cell lung cancer after neoadjuvant chemotherapy followed by surgery - A propensity score matching study of the Surveillance, Epidemiology, and End Results database.
Article in Thoracic cancer, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed, 16 citations in OpenAlex.
- Long-term outcomes of postoperative radiotherapy for patients with pIIIA-N2 non-small-cell lung cancer after complete resection and adjuvant chemotherapy (PORT-C): a single-centre, randomized, phase 3 trial.EClinicalMedicine · 2025Article
- Preoperative CT-based radiomic prognostic index to predict the benefit of postoperative radiotherapy in patients with non-small cell lung cancer: a multicenter study.Cancer imaging : the official publication of the International Cancer Imaging Society · 2024Article
- Efficacies of different postoperative radiotherapy techniques in patients with N2 non-small cell lung cancer: a meta-analysis.American journal of translational research · 2024Article
- Exploring the past, present, and future of postoperative radiotherapy for N2 stage non-small cell lung cancer.Radiation oncology journal · 2023Article
- Fibronectin promotes tumor angiogenesis and progression of non-small-cell lung cancer by elevating WISP3 expression via FAK/MAPK/ HIF-1α axis and activating wnt signaling pathway.Experimental hematology & oncology · 2023Article
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10 authors at 2 institutions in 2 countries.
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Abstract
backgroundFor patients with ypN2 non-small cell lung cancer (NSCLC) after neoadjuvant chemotherapy followed by surgery (NCS), the role of postoperative radiotherapy (PORT) is unclear. The aim of our study was to evaluate the effect of PORT on survival of ypN2 NSCLC patients after NCS.
methodsBetween 2004 and 2015, patients with ypN2 NSCLC after NCS were filtrated from the Surveillance, Epidemiology, and End Results (SEER) database. Propensity score matching (PSM) was used to balance the baseline characteristics of the PORT and non-PORT groups. Kaplan-Meier method and Cox proportional hazards models were adopted to estimate overall survival (OS) and cancer-specific survival (CSS).
resultsA total of 257 patients who met the criteria were included in the study. After PSM, 115 patients remained in each group. The survival of patients in the PORT group was significantly better than those in the non-PORT group. Median OS was 36 months vs. 26 months, and 5-year OS rate was 40.5% vs. 21.0% (p = 0.002). The median CSS was 38 months vs. 27 months, and the 5-year CSS rate was 43.7% vs. 22.1% (p < 0.001). Multivariable analysis showed that PORT was an independent prognostic factor for OS (HR = 0.59, 95% CI: 0.43-0.82, p = 0.001) and CSS (HR = 0.56, 95% CI: 0.41-0.78, p = 0.001). Subgroup analysis showed that patients in the following subgroups could benefit from PORT: age ≤ 70, diagnosed in the later period (2010-2015), white race, squamous cell carcinoma, grade III-IV, lobectomy, stage T3-4, or with positive regional nodes ≤3 or > 3.
conclusionsFor patients with ypN2 NSCLC after NCS, PORT significantly improves OS and CSS. These results need to be confirmed by further randomized studies.
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