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Survival Patterns for Patients with Resected N2 Non-Small Cell Lung Cancer and Postoperative Radiotherapy: A Prognostic Scoring Model and Heat Map Approach
Journal of Thoracic Oncology ( IF 20.4 ) Pub Date : 2018-12-01 , DOI: 10.1016/j.jtho.2018.08.2021
Weiye Deng , Ting Xu , Yujin Xu , Yifan Wang , Xiangyu Liu , Yu Zhao , Pei Yang , Zhongxing Liao

Introduction: The positive‐to‐resected lymph node ratio (LNR) predicts survival in many cancers, but little information is available on its value for patients with N2 NSCLC who receive postoperative radiotherapy (PORT) after resection. We tested the applicability of prognostic scoring models and heat mapping to predict overall survival (OS) and cancer‐specific survival (CSS) in patients with resected N2 NSCLC and PORT. Methods: Our test cohort comprised patients identified from the Surveillance, Epidemiology, and End Results database with N2 NSCLC who received resection and PORT in 2000–2014. Prognostic scoring models were developed to predict OS and CSS using Cox regression; heat maps were constructed with corresponding survival probabilities. Recursive partitioning analysis was applied to the Surveillance, Epidemiology, and End Results data to identify the optimal LNR cutoff point. Models and cutoff points were further tested in 183 similar patients treated at The University of Texas M. D. Anderson Cancer Center in 2000–2015. Results: Multivariate analyses revealed that low LNR independently predicted better OS and CSS in patients with resected N2 NSCLC who received PORT. Conclusions: LNR can be used to predict survival of patients with resected N2 NSCLC followed by PORT. This approach, which to our knowledge is the first application of heat mapping of positive and negative lymph nodes, was effective in estimating 3‐, 5‐, and 10‐year OS probabilities.

中文翻译:

已切除 N2 非小细胞肺癌和术后放疗患者的生存模式:预后评分模型和热图方法

简介:阳性与切除淋巴结比 (LNR) 可预测许多癌症的生存率,但关于其对切除术后接受术后放疗 (PORT) 的 N2 NSCLC 患者的价值的信息很少。我们测试了预后评分模型和热图预测已切除 N2 NSCLC 和 PORT 患者的总生存期 (OS) 和癌症特异性生存期 (CSS) 的适用性。方法:我们的测试队列包括从监测、流行病学和最终结果数据库中确定的 N2 NSCLC 患者,这些患者在 2000-2014 年接受了切除术和 PORT。开发了预后评分模型以使用 Cox 回归预测 OS 和 CSS;热图是用相应的生存概率构建的。递归分区分析应用于监测、流行病学、和最终结果数据,以确定最佳 LNR 截止点。2000-2015 年在德克萨斯大学 MD 安德森癌症中心接受治疗的 183 名类似患者中进一步测试了模型和截止点。结果:多变量分析显示,低 LNR 可独立预测接受 PORT 的已切除 N2 NSCLC 患者更好的 OS 和 CSS。结论:LNR 可用于预测已切除 N2 NSCLC 继以 PORT 的患者的生存率。据我们所知,这种方法是阳性和阴性淋巴结热图的首次应用,可有效估计 3 年、5 年和 10 年的 OS 概率。多变量分析显示,低 LNR 可独立预测接受 PORT 的已切除 N2 NSCLC 患者更好的 OS 和 CSS。结论:LNR 可用于预测已切除 N2 NSCLC 继以 PORT 的患者的生存率。据我们所知,这种方法是阳性和阴性淋巴结热图的首次应用,可有效估计 3 年、5 年和 10 年的 OS 概率。多变量分析显示,低 LNR 可独立预测接受 PORT 的已切除 N2 NSCLC 患者更好的 OS 和 CSS。结论:LNR 可用于预测已切除 N2 NSCLC 继以 PORT 的患者的生存率。据我们所知,这种方法是阳性和阴性淋巴结热图的首次应用,可有效估计 3 年、5 年和 10 年的 OS 概率。
更新日期:2018-12-01
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