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非小细胞肺癌脑转移低分割放疗疗效分析

, PP. 1375-1378

Keywords: 非小细胞肺癌,脑转移瘤,三维适形放疗,全脑照射

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Abstract:

目的评价非小细胞肺癌脑转移放射治疗中全脑照射的作用,分析生存预后因素。方法对93例非小细胞肺癌脑转移患者进行放射治疗,其中68例先行全脑照射(全脑照射组),然后行局部三维适形低分割放疗;25例只行三维适形低分割放疗(低分割组)。用kaplan-meier法统计生存率及局部控制率,以cox比例风险模型分析影响患者生存的预后因素。结果全脑照射组中位生存时间14个月,1、2年生存率分别为50%、27%;低分割组中位生存时间12个月,1、2年生存率分别为45%、15%;两组无显著差异性(log-rank,p=0.502)。全脑照射组与低分割组1年颅脑局部控制率分别为90%、70%,两组有显著差异(p=0.028)。多因素分析提示颅外活动性病灶(p=0.002)、kps评分(p=0.034)是影响生存的独立预后因素。结论非小细胞肺癌脑转移三维适形放疗联合全脑照射无生存得益,而有助于提高局部控制率。

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