[关键词]
[摘要]
目的:研究γ射线立体定向放射治疗对非小细胞肺癌老年病人的临床疗效。方法:回顾性分析我科
2009-03~2011-03内62例进行γ射线立体定向放射治疗的非小细胞肺癌老年病人的疗效,全部62例病人均
经病理证实为非小细胞肺癌,γ射线立体定向放射治疗的方法为利用50%~70%等剂量线包绕计划靶区,单次
剂量为400-500cGy/次,5次/wk,共计10~12次,肿瘤边缘总剂量达40~60Gy,Kaplan Meier法计算局部控
制率和生存率。结果:62例病人全部完成治疗,中位随访期为22mo,随访率为100%,治疗结束后3mo评价近期
疗效:完全缓解率(CR)为19%(12/62),部分缓解率(PR)为71%(44/62),稳定(NC)为8%(5/62),进展(PD)为
2%(1/62),总有效率(CR+ PR)为90%;治疗结束后1a局控率为98%,总生存率为100%;治疗结束后2a局控
率为89%,总生存率为92%。早期肺放射反应I级6例,II级2例;晚期肺损伤II级反应5例。结论:对于老年
非小细胞肺癌病人,采用γ射线立体定向放射治疗能够较好的控制肿瘤的局部进展,缓解症状,且副作用低。
[Key word]
[Abstract]
To investigateγ-ray stereotactic radiation therapy on the clinical efficacy of non
-small cell lung cancer in elderly patients.Methods:A retrospective analysis of the efficacy ofγ
-ray stereotactic radiotherapy for 62elderly patients with non-small cell lung cancer,which
were treated in our department from March 2009to March 2011 62patients were pathologically
confirmed non-small cell lung cancer,γ-ray stereotactic radiotherapy for 50%~70%isodose
curve planning target volume,a single dose of 400cGy/5times/week,for a total of 10~12
times the edge of the tumor total dose of 40~60Gy,Kaplan Meier method to calculate the local
control rate and survival rate.Results:62patients completed treatment,the median follow-up
period of 22months,follow-up rate was 100%,3months after the end of treatment evaluation
short-term effect:complete remission(CR)rate was 19%(12/62),some response rate(PR)was
71%(44/62),stable(NC)to 8%(5/62),progress(PD)to 2%(1/62),the total response rate(CR+ PR)to 90%;after the end of treatment,1-year local control rate was 98%,the overall survival
rate was 100%;2-year local control rate was 89%after the end of treatment,the overall
survival rate was 92%.Early lung radiation reaction Class I,II 2;5cases of advanced lung damage
Class II response;Conclusion:For elderly patients with non-small cell lung cancer,the use
ofγ-ray stereotactic radiotherapy can control locally advanced tumor,relieve symptoms and
side effects is low.
[中图分类号]
R734.2
[基金项目]
收稿日期:2013-06-02;修回日期:2013-08-23
基金项目:内蒙古自然科学基金(2010MS1145)
作者简介:闫瑞敏(1963-),女,内蒙古医科大学附属医院放疗科主管技师。
通讯作者:郁志龙,主任医师,E-mail:Richard_yu1961269@sina.com内蒙古医科大学附属医院放疗科,010050