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CSCO 2011:三维适形放疗治疗非小细胞肺癌的系统评价

2011-09-15 林静 MedSci原创

  四川大学华西临床医学院华西学生肿瘤研究学会 四川大学华西医院 华西临床医学院 林静 邓磊   四川大学华西医院肿瘤中心胸部肿瘤科 卢铀   目的:系统评价三维适形放疗治疗非小细胞肺癌的疗效和副反应,为临床实践提供证据。   方法:电子检索Cochrane图书馆、MEDLINE、Embase、CBMdisc、CNKI以及VIP,并辅手工检索

  四川大学华西临床医学院华西学生肿瘤研究学会 四川大学华西医院 华西临床医学院 林静 邓磊

  四川大学华西医院肿瘤中心胸部肿瘤科 卢铀

  目的:系统评价三维适形放疗治疗非小细胞肺癌的疗效和副反应,为临床实践提供证据。

  方法:电子检索Cochrane图书馆、MEDLINE、Embase、CBMdisc、CNKI以及VIP,并辅手工检索和其他检索,截至 2011年4月,纳入比较三维适形放疗与常规分割放疗治疗非小细胞肺癌的随机对照试验(RCTs)。由两名评价员独立评价文献质量、提取资料并交叉核对,而后采用RevMan 5.1 软件进行Meta 分析。

  结果:共检索到相关文献416篇,最终纳入9个RCT,包括724例患者。其中,2个研究治疗组的干预措施为全程常规分割三维适形放疗,包括 132例患者;2个研究治疗组的干预措施为全程大分割三维适形放疗,包括223例患者;1个研究治疗组的干预措施为全程大分割加速三维适形放疗,包括60 例患者;3个研究治疗组的干预措施为后程常规分割三维适形放疗,包括218例患者;1个研究治疗组的干预措施为后程大分割三维适形放疗,包括91例患者。对照组均为常规分割放疗。其研究质量均为C级。Meta分析结果显示:与常规分割放疗相比,①在疗效方面,全程常规分割三维适形放疗、全程大分割三维适形放疗和后程大分割三维适形放疗可提高非小细胞肺癌患者的完全缓解率,其RR分别为3.19[95%CI(1.24,8.19)]、 1.80[95%CI(1.43,2.28)]、1.77[95%CI(1.48,2.13)];全程常规分割三维适形放疗、后程常规分割三维适形放疗和后程大分割三维适形放疗可提高非小细胞肺癌患者的总有效率,RR分别为1.38[95%CI(1.13,1.69)]、 1.33[95%CI(1.24,2.03)]和1.58[95%CI(1.24,2.03)]。随访1年时,全程大分割三维适形放疗、后程常规分割三维适形放疗和后程大分割三维适形放疗可提高非小细胞肺癌患者的1年总生存率,RR分别为 1.75[95%CI(1.39,2.21)],1.42 [95%CI(1.05,1.92)]和1.50[95%CI(1.31,1.71)]。随访 2年时,仅后程常规分割三维适形放疗提高了2年总生存率,RR为1.71[95%CI(1.07,2.74)]。②在放射性毒副反应发生率方面,大多数三维适形放疗均不会增加急性放射毒副反应的发生率;而对于晚期放射毒副反应而言,与常规分割放疗相比,全程大分割三维适形放疗会增加非小细胞肺癌患者放射性肺纤维化的发生率,其RR为1.10[95%CI(1.01,1.20)]。

  结论:现有证据表明,三维适形放疗可提高非小细胞肺癌患者的完全缓解率、总有效率和总生存率,且绝大多数三维适形放疗不会增加急性和晚期放疗并发症。但由于本系统评价例数偏少、纳入文献质量受限,故其疗效和放射副反应评价还需更多大样本、高质量的随机双盲对照试验加以证实。

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    2011-09-17 放松

    房贷首付的是范德萨发生的

    0

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    2011-09-17 huagfeg

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