儿童癌症放射治疗后的长期乳腺癌风险:为幸存者提供数据驱动的查建议
Charlotte Demoor-Goldschmidt1,2,3, Mathilde Lefresne1, Emmanuel Jouglar4
1Pediatric oncology department, University hospital of Angers, France.
The British journal of radiology
|July 9, 2025
概括
接受放射治疗的儿童癌症幸存者实际的乳腺辐射剂量可能低于处方剂量,这表明目前的查指南可能过于激进. 实际剂量评估对于个性化后续护理至关重要.
科学领域:
- 在瘤学瘤学.
- 辐射疗法 辐射疗法
- 儿童癌症生存率 儿童癌症生存率
背景情况:
- 现代放射治疗技术的目的是尽量减少对健康组织的辐射暴露.
- 接受放射治疗的儿童癌症幸存者患二次恶性瘤的风险增加,包括乳腺癌.
- 目前针对这些幸存者的乳腺癌查指南主要基于处方的辐射剂量.
研究的目的:
- 分析小儿癌症患者乳腺组织实际辐射剂量.
- 为了确定处方剂量与实际辐射剂量之间的差异.
- 评估当前乳腺癌查指南对接受现代放射治疗的幸存者的充分性.
主要方法:
- 法国国家儿科放射治疗数据库 (PediaRT) 的分析,包括5079名患者.
- 专注于光子治疗计划,并提供乳腺剂量数据 (n=428).
- 生物等效剂量 (BED) 的计算和统计分析以确定与乳腺剂量暴露相关的因素.
主要成果:
- 在接受超膜放射治疗的患者中,62.1%的患者获得最大乳腺剂量>10 Gy,25.5%的患者获得平均剂量>10 Gy.
- 对BED的分析表明,51.29%至80.47%的处方剂量>10 Gy的患者接受了<10 Gy的最小,最大或平均剂量.
- 差异表明,处方剂量可能会高估现代技术治疗的幸存者的实际乳腺辐射暴露.
结论:
- 儿童癌症幸存者的实际乳腺组织辐射剂量往往低于处方剂量.
- 目前仅基于处方剂量的乳腺癌查指南可能会导致过度估计风险.
- 乳腺癌查的建议应根据乳腺组织所接收的实际辐射剂量进行个性化.
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