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Pediatric Blood & Cancer:减少对儿童脑肿瘤的放射治疗不太成功

2017-04-09 MedSci MedSci原创

4月4日Pediatric Blood & Cancer网页版优先发布了一项研究成果。研究人员在临床试验中评估减少放疗的有效性,结果发现,当改变治疗方案后,幼儿的情况更糟。

4月4日Pediatric Blood & Cancer网页版优先发布了一项研究成果。研究人员在临床试验中评估减少放疗的有效性,结果发现,当改变治疗方案后,幼儿的情况更糟。

"这项研究表明,放射治疗的时间,剂量和位置都非常重要,"文章第一作者,洛杉矶儿童医院放射肿瘤学家Kenneth K. Wong博士说。

本文是头脑开发项目(Head Start)III期试验的定性评估,可以避免或推迟脑肿瘤儿童的放射治疗。头脑开发项目是治疗恶性脑肿瘤的创新方法--使用高剂量化疗,然后输入造血干细胞--作为对幼儿放疗的替代疗法,辐射的副作用对发育中的大脑尤其有害。如果治疗后疾病仍然存在,或者如果孩子长大了,他们接受放射治疗。

在头脑开发项目III期,220名儿童中只有31人接受了放射治疗,因为这些研究的目的是减少辐射。然而,在接受辐射的儿童中,25人中有8人改变了治疗计划。这些更改方案的案例都发生在6岁以下的儿童。

Wong说:"父母或提供者可能想要推迟放射治疗时间或减少放射剂量或接触面积,特别是在非常年幼的孩子身上。" "但是在一项限制放射线接触的研究中,这些更改治疗方案的患者的结果更糟。"

对于符合放射治疗条件的所有患者,根据标准方案接受治疗,并在干细胞输血恢复后11周内开始放射治疗的患者总体生存率有所改善。

为了进一步改善患者的预后,Wong建议在开始放射治疗之前,通过综合分析治疗计划,减少对方案的更改。他目前正在寻求资金继续这项工作。

原文出处:

Kenneth K. Wong et al, Radiotherapy after high-dose chemotherapy with autologous hematopoietic cell rescue: Quality assessment of Head Start III, Pediatric Blood & Cancer (2017).

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    2017-09-12 feather89
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    2017-05-11 hbwxf
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