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局部晚期胰腺癌经调强放射治疗和体部立体定向放射治疗的有效性及安全性的Meta分析

雷俊杰 魏燕娇 任麒霖 任宏剑 郭亚荣

引用本文:
Citation:

局部晚期胰腺癌经调强放射治疗和体部立体定向放射治疗的有效性及安全性的Meta分析

DOI: 10.12449/JCH260518
基金项目: 

山西省自然科学基金 (202303021221220)

利益冲突声明:本文不存在任何利益冲突。
作者贡献声明:雷俊杰和任宏剑负责文献检索;雷俊杰负责论文撰写;魏燕娇和任麒霖负责数据的提取及统计;郭亚荣负责制定研究方案,组织实施。
详细信息
    通信作者:

    郭亚荣, gyr5258@126.com (ORCID: 0000-0002-3589-5882)

Efficacy and safety of intensity-modulated radiotherapy versus stereotactic body radiotherapy in treatment of locally advanced pancreatic cancer: A meta-analysis

Research funding: 

Natural Science Foundation of Shanxi Province (202303021221220)

More Information
    Corresponding author: GUO Yarong, gyr5258@126.com (ORCID: 0000-0002-3589-5882)
  • 摘要:   目的  系统分析调强放射治疗(IMRT)和体部立体定向放射治疗(SBRT)对局部晚期胰腺癌(LAPC)的治疗效果差异,以期为治疗决策提供依据。  方法  计算机检索PubMed、Embase、Cochrane Library、中国知网、万方数据和维普等数据库,检索时间为建库至2025年7月31日。纳入比较IMRT与SBRT治疗LAPC的前瞻性或回顾性队列研究。采用Newcastle-Ottawa量表评估研究质量,Review Manager 5.4进行Meta分析。  结果  共纳入23项研究,合计2 505例患者。在局部控制率方面,纳入13项研究(n=847),SBRT组1年局部控制率为84.5%,显著高于IMRT组的66.7%[相对危险度(RR)=1.27,95%置信区间(CI):1.03~1.56,I2 =28%,P=0.026)。在急性毒性方面,纳入15项研究,SBRT组≥3级急性毒性发生率为3.5%,显著低于IMRT组的11.0%(RR=0.32,95%CI:0.19~0.53,I2=18%,P<0.001)。在总生存期方面,SBRT组的中位值为16.8个月,IMRT组为16.3个月,无明显差异。针对局部控制率的亚组分析显示,按研究质量分层,高质量研究(9项)中SBRT组局部控制率显著高于IMRT组(RR=1.25,P<0.001),中等质量研究(4项)亦然(RR=1.31,P=0.021);按技术平台分层,采用磁共振引导技术的SBRT研究效应量最大(RR=1.40,I²=10%)。敏感性分析显示,RR范围为1.21~1.28,结果稳定。Egger回归检验提示,无明显发表偏倚(P>0.05)。  结论  SBRT在局部控制率和急性毒性方面显著优于IMRT,是LAPC患者的优选治疗方案,尤其以MR引导技术表现最优。

     

  • 注: RR,相对危险度;CI,置信区间;CF-IMRT,常规分割调强放射治疗;SBRT,体部立体定向放射治疗。

    图  1  局部控制率比较森林图

    Figure  1.  Forest plot for local control rate comparison

    注: MR,磁共振。

    图  2  亚组分析森林图

    Figure  2.  Forest plot of subgroup analysis

    注: a,局部控制率(纳入13项研究);b,急性毒性(纳入15项研究)。RR,相对危险度;CF-IMRT,常规分割调强放射治疗;SBRT,体部立体定向放射治疗。

    图  3  发表偏倚评估漏斗图

    Figure  3.  Funnel plot for publication bias assessment

    表  1  各技术类型研究特征

    Table  1.   Characteristics of studies by technology type

    技术类型 研究数量(项) 前瞻性研究(项) 多中心研究(项) 患者数(例) 剂量范围 分次范围
    IMRT10-122831 5 1 1 418 48~60 Gy 15~33次
    SBRT813-1416-1921-2629-30 15 5 3 1 014 24~60 Gy 1~8次
    技术比较732 2 1 1 1 029 混合 混合
    高级技术27 1 1 0 44 50 Gy 5次
    总计 23 8 5 2 505 24~60 Gy 1~33次

    注:IMRT,调强放射治疗;SBRT,体部立体定向放射治疗。技术比较指同时纳入IMRT和SBRT患者进行比较的研究;高级技术,采用磁共振引导在线自适应放射治疗。

    下载: 导出CSV

    表  2  两组患者基线特征与治疗特征比较

    Table  2.   Comparison of baseline and treatment characteristics between the two groups of patients

    特征 SBRT组(研究数量) IMRT组(研究数量) 评价
    中位年龄(岁) 61.7~71.0(17项) 62.0~71.0(5项) 相似
    男性(%) 42.0~75.0(16项) 37.0~80.0(5项) 相似
    ECOG 0~1分(%) 85.0~100.0(10项) 100.0(5项) 相似
    中位肿瘤直径(cm) 3.1~4.2(7项) 2.0~3.5(5项) 数据有限
    联合化疗(%) 46~100(18项) 100(5项) 均较高
    化疗周期数(个) 3~14(9项) 3~4(5项) 数据有限

    注:SBRT,体部立体定向放射治疗;IMRT,调强放射治疗;ECOG,东部肿瘤协作组评分。研究数量包含技术比较及高级技术中涉及相应技术的研究。

    下载: 导出CSV

    表  3  SBRT研究技术平台特征

    Table  3.   Technical platforms of SBRT studies

    第一作者 年份 设备类型 品牌 影像引导 运动管理 自适应
    Schellenberg D17 2008年 射波刀 Accuray 金标追踪 Synchrony
    Chang DT16 2009年 射波刀 Accuray 金标追踪 呼吸追踪
    Polistina F23 2010年 射波刀 Accuray 金标追踪 呼吸追踪
    Mahadevan A22 2010年 射波刀 Accuray 金标追踪 呼吸追踪
    Rwigema JC19 2011年 射波刀 Accuray 金标追踪 呼吸门控
    Tozzi A18 2013年 直线加速器 Varian CBCT 腹部加压
    Pollom EL29 2014年 射波刀/直线加速器 Accuray/Varian 金标+透视+kV Synchrony/呼吸门控
    Herman JM13 2015年 直线加速器 Varian CBCT ABC/门控/腹压
    Bordeau K26 2022年 MR-Linac ViewRay 实时MRI 屏气
    Tringale KR30 2022年 MR-Linac Elekta 实时MRI 腹部加压
    Parikh PJ24 2023年 MR-Linac ViewRay 实时MRI MRI实时门控
    Comito T14 2023年 直线加速器 Varian CBCT 4DCT
    Van’t Land FR21 2023年 射波刀 Accuray 金标追踪 呼气CT
    Salas B8 2024年 直线加速器 Varian CBCT 4DCT
    Weisz Ejlsmark M25 2024年 MR-Linac Elekta 实时MRI 腹部加压

    注:SBRT,体部立体定向放射治疗;CBCT,锥形束计算机体层成像;MR-Linac,磁共振引导直线加速器;MRI,磁共振成像;ABC,主动呼吸控制;CT,计算机体层成像;4DCT,四维计算机体层成像;kV,千伏级X线影像。

    下载: 导出CSV

    表  4  纳入研究的质量评价(Newcastle-Ottawa量表)

    Table  4.   Quality assessment of included studies (Newcastle-Ottawa scale)

    第一作者 选择性
    (分)
    可比性
    (分)
    结局
    (分)
    总分 质量
    Herman JM13 4 2 3 9 极高
    Parikh PJ24 4 2 3 9 极高
    Salas B8 4 2 3 9 极高
    Weisz Ejlsmark M25 4 2 3 9 极高
    Goto Y28 4 2 2 8
    Ben-Josef E31 3 2 3 8
    Comito T14 3 2 3 8
    Bordeau K26 3 2 3 8
    Tringale KR30 3 2 3 8
    Van’t Land FR21 3 2 2 7
    Schellenberg D17 3 2 2 7
    Polistina F23 3 2 2 7
    Krishnan S11 3 2 2 7
    Chang DT16 3 1 2 6 中等
    Mahadevan A22 3 1 2 6 中等
    Rwigema JC19 3 1 2 6 中等
    Tozzi A18 3 1 2 6 中等
    Pollom EL29 3 1 2 6 中等
    Yovino S10 3 1 2 6 中等
    Nakamura A12 3 2 2 7
    Zhong J32 3 2 3 8
    Lin JC7 3 2 3 8
    Rudra S27 4 2 2 8

    注:选择性满分4分,可比性满分2分,结局满分3分,总分为9分。

    下载: 导出CSV

    表  5  主要结局指标汇总分析

    Table  5.   Summary analysis of primary outcome indicators

    组别 研究数量
    (项)
    中位OS(月) 1年局部控制率
    (%)
    ≥3级毒性
    (%)
    报道OS的
    研究(项)
    报道局部控制
    率的研究(项)
    报道毒性的
    研究(项)
    IMRT组 5 14.8~17.8 59.0~73.1 0~22.0 2 2 4
    SBRT组 15 11.6~25.9 27.0~96.8 0~21.4 12 11 11
    技术比较组 2 11.6~20.0 0~5.6 2 0 2
    高级技术组 1 16.5~25.9 0 1 0 1

    注:IMRT,调强放射治疗;SBRT,体部立体定向放射治疗;OS,总生存期。技术比较组因无法单独提取各技术组局部控制率数据而未纳入局部控制率分析。

    下载: 导出CSV

    表  6  敏感性分析结果

    Table  6.   Results of sensitivity analysis

    剔除研究 剩余研究(项) RR 95%CI P I2
    剔除Herman JM13 12 1.23 1.07~1.55 0.001 26%
    剔除Comito T14 12 1.25 1.02~1.52 0.006 30%
    剔除Bordeau K26 12 1.23 1.04~1.46 0.002 18%
    剔除Chang DT16 12 1.26 1.04~1.52 0.002 23%
    剔除Salas B8 12 1.21 1.00~1.47 0.008 25%
    剔除Tozzi A18 12 1.28 1.05~1.56 0.002 26%
    RR变化范围 1.21~1.28 1.00~1.55 0.001~0.008 15%~30%

    注:RR,相对危险度;CI,置信区间;I2,异质性指数。

    下载: 导出CSV
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  • 收稿日期:  2025-11-12
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