与食道癌患者的比较结果和毒性,以步骤和射击强度调节的辐射疗法与体积调节的弧形疗法进行三模式疗法后:MD安德森的经验
C O Abana1, P P Carriere1, P J Damen2
1Department of Thoracic Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
概括
卷度调节弧线疗法 (VMAT) 改善了局部晚期食道癌患者的整体存活率和降低了毒性,与步骤和射击强度调节辐射疗法相比,接受了三模式疗法.
科学领域:
- 辐射瘤学 辐射瘤学
- 食道癌治疗方法 食道癌治疗方法
- 三种模式的治疗疗法.
背景情况:
- 局部发达的食道癌通常用三模式治疗来治疗,包括新辅助化学辐射,然后进行手术.
- 强度调节辐射疗法 (IMRT) 技术,如步进射击 (SS) 和体积调节弧线疗法 (VMAT) 在这种情况下使用.
- 在三模式治疗中,将SS与VMAT的结果和毒性进行比较对于优化患者护理至关重要.
研究的目的:
- 为了比较SS-IMRT和VMAT在接受三种治疗的局部晚期食道癌患者的临床结果和毒性概况.
- 评估辐射技术对整体存活率,复发率和治疗相关并发症的影响.
主要方法:
- 在2001年至2022年期间,对449名接受三模式治疗和IMRT治疗的患者进行了回顾性审查.
- 倾向性得分匹配确定了106对SS和VMAT患者进行比较分析.
- 评估生存,复发模式,手术结果,以及与化疗辐射和术后并发症相关的毒性.
主要成果:
- 与SS相比,VMAT与明显更高的3年整体存活率 (OS) 相关 (P=0.028).
- VMAT显示术后心脏 (P<0.001) 和肺部并发症 (P=0.048) 的几率降低,病理反应 (P=0.003) 和边缘状态 (P=0.023) 的改善.
- 接受VMAT治疗的患者在化疗期间体重减轻 (33.0%vs79.2%),疲劳 (40.6%vs68.9%),恶心 (31.1%vs58.5%) 和心脏毒性 (0%vs6.6%) 的比率显著降低.
结论:
- 在这项回顾性研究中,VMAT在局部晚期食道癌的三模式治疗中,在整体生存和毒性方面似乎优于SS-IMRT.
- VMAT与手术后并发症的减少以及与化学辐射相关的毒性降低有关.
- 建议进行更多的多机构前性试验,随访时间更长,以证实这些发现.
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