Abstract

背景与目的N2-Ⅲa期非小细胞肺癌(non-small cell lung cancer, NSCLC)手术抑或非手术仍存颇多争议。我们通过回顾性分析121例手术的N2-Ⅲa期NSCLC患者的生存,探讨N2-Ⅲa期NSCLC患者术后远期生存的因素。方法选取北京大学肿瘤医院单医生组肺癌前瞻性数据库2000年1月-2013年6月共1, 290例NSCLC手术患者,其中N2-Ⅲa期NSCLC患者121例。分析性别、年龄、吸烟、围手术期化疗、切口、病理、脉管癌栓、pT分期、肿瘤大小对N2-Ⅲa期患者生存的影响;比较单站N2与多站N2的生存差异;比较术中或术后病理N2者(Ⅲa1/a2)与治疗前N2者(Ⅲa3/a4)的生存差异。单因素分析采用Kaplan-Meier法计算生存,Log-rank检验。多因素分析采用Cox回归分析。结果全组121例患者5年生存率为43.6%,中位生存时间50.3个月。单因素分析显示单站N2转移与多站N2转移的5年生存率分别为58.3%和25.5%(P=0.001);Ⅲa1/a2期者与Ⅲa3/a4期者5年生存率分别为52.7%和38.4%(P=0.020)。多因素分析显示仅单站N2转移(HR=0.326, 95%CI: 0.186-0.572, P < 0.001)与Ⅲa1/a2(HR=0.494, 95%CI: 0.259-0.941, P=0.032)是影响本组N2-Ⅲa期患者远期生存的独立因素。结论N2-Ⅲa期NSCLC中单站N2转移者预后好于多站N2转移者。Ⅲa1/a2期患者预后好于Ⅲa3/a4期患者。高选择性N2-Ⅲa期NSCLC患者采取以外科手术为主的多学科综合治疗可获得较满意的远期生存。

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