儿童膀和/或前列腺肌肉肉瘤的图像引导式支臂疗法:朝着增加治疗个性化的方向
Eymeric Le Reun1, Sophie Espenel2, Max-Adrien Garcia3
1Department of Radiation Oncology, Gustave Roussy Cancer Campus, Cancer Center, Villejuif, France; Inserm, U1296 Unit, "Radiation: Defense, Health and Environment", Centre Léon-Bérard, Lyon, France.
International journal of radiation oncology, biology, physics
|September 22, 2024
概括
图像导向脉冲剂量速率支臂疗法为儿科膀和前列腺神经肌肉瘤提供了有效的治疗方法,实现了高生存率与可控毒性.
科学领域:
- 儿科瘤学 儿科瘤学
- 辐射瘤学 辐射瘤学
- 医学物理 医学物理
背景情况:
- 肌肉骨髓瘤 (RMS) 是最常见的儿科软组织癌症.
- 膀和前列腺 (BP) 的参与发生在大约15%的儿科RMS病例中.
- 目前的治疗包括化疗,然后是手术和/或放射治疗.
研究的目的:
- 评估图像导向脉冲剂量速率 (PDR) 胸膜疗法对儿科膀和前列腺肌肉瘤 (BP RMS) 的疗效和毒性.
- 报告儿童患者这种治疗方式的最大系列之一的结果.
- 评估生存率和与治疗相关的毒性.
主要方法:
- 2014年7月至2020年9月期间接受治疗的75名儿童的临床和剂量测量数据的回顾性审查.
- 多模式的保守方法,包括部分手术和间歇性支臂疗法,使用-192 PDR.
- 使用CT和MRI进行图像引导规划,根据CTCAE v4.0.0.进行毒性评估.
主要成果:
- 随访时间中位数为44.1个月.
- 五年总生存率和无进展生存率分别为97.3%和92%.
- 严重的晚期尿道毒性 (等级≥3) 在21.2%的患者中发生,而9.3%的患者经历了2级或3级晚期直肠毒性.
结论:
- 图像引导的PDR支臂疗法显示了对儿科BPRMS的有利治疗指数,使得个性化治疗成为可能.
- 在这个队列中,没有发现尿道毒性的预后因素.
- 更大的多中心研究是有必要的,以进一步验证这些发现.
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