154例广泛期小细胞肺癌治疗结果预后因素分析

摘要

Objective To investigate independent prognostic factors for overall survival (OS) in extensive disease small cell lung cancer (EDSCLC). Methods Between January 2003 and December 2006, 154 patients diagnosed with extensive stage small cell lung cancer were enrolled in this study.Prognostic factors such as gender, age, performance status, smoking history, weight loss, distant metastasis, the number of matastasis, brain metastasis, the cycle of chemotherapy and thoracic radiation therapy (TRT) for EDSCLC patients were evaluated by univariate and multivariate analysis. Results The median following-up time was 40. 5 months. The rate of follow-up was 92. 2%. The MST and overall survival rates at 3-year in smoking group and no-smoking group were 13 months, 11.8% and 17 months,22. 8%,respectively (χ2=3.40,P =0. 064);in ChT/TRT group and ChT group, they were 17. 2 months, 17.9%and 9.3 months,13.9%, respectively(χ2=10.47,P=0.001);and in the cycle of chemotherapy ≥4 group and ＜ 4 group, they were 16 months, 20. 1% and 9.3 months, 2. 9%, respectively (χ2=17.79,P=0. 000). By multivariate analysis, smoking history was a statistically significant unfavorable factor for OS in EDSCLC patients (versus no-smoking, hazard ratio (HR)=1.462, χ2=4.40, P=0.036). In addition, ≥4 cycles of chemotherapy and TRT were favorable prognostic factors ( ≥4 cycles vs ＜4 cycles, HR =0. 420,χ2 = 17. 17, P = 0. 000; ChT/TRT vs ChT, HR = 0. 634, χ2 = 6. 20, P = 0. 013). Conclusions Smoking is a independent unfavorable prognostic factor and ≥ 4 cycles of chemotherapy And TRT are independent favorable prognostic factors for OS in EDSCLC.%目的 探讨影响广泛期小细胞肺癌预后的临床因素和治疗因素.方法 回顾分析2003-2006年在本院接受首程治疗(化疗±放疗)并有明确细胞学或病理诊断的广泛期小细胞肺癌患者154例,其中化放疗组89例,单化疗组65例.用Kaplan-Meier法进行生存分析,Logrank法对性别、年龄、卡氏评分、吸烟、体重减轻、远处转移、脑转移等临床因素和化疗周期数目、是否放疗等治疗因素进行单因素预后分析,Cox回归模型进行多因素预后分析.结果 中位随访时间40.5个月,随访率为92.2%.单因素分析结果显示吸烟和不吸烟的中位生存时间、3年生存率分别为13个月、11.8%和17个月、22.8%(χ2=3.40,P=0.064),化放疗和单化疗的分别为17.2个月、17.9%和9.3个月、13.9%(χ2=10.47,P=0.001),化疗周期数≥4和＜4的分别为16个月、20.1%和9.3个月、2.9%(χ2=17.79,P=0.000).多因素分析结果显示吸烟与否、化疗周期数≥4与＜4个和治疗模式(化疗+化放疗)对预后影响的危险比分别为1.462(χ2=4.40,P=0.036)、0.420(χ2=17.17,P=0.000)和0.634(χ2=6.20,P=0.013).结论 吸烟、胸部放疗及化疗周期数目是影响广泛期小细胞肺癌预后的独立因素.