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辐射剂量和淋巴瘤风险在立即淋巴重建和下淋巴结解剖后:在ALND和IL后的辐射剂量和淋巴瘤风险.
Daphna Spiegel1, Josephine Levey1, Mario Keko2
1Department of Radiation Oncology, Brigham and Women's Hospital/Dana Farber Cancer Institute, Harvard Medical School, Boston, MA.
International journal of radiation oncology, biology, physics
|February 10, 2026
概括
区域节点辐射增加了下淋巴结解剖和淋巴结重建后与乳腺癌相关的淋巴风险. 对重建部位的较高辐射剂量与淋巴发病率的增加相关.
科学领域:
- 在瘤学瘤学.
- 手术瘤学手术瘤学
- 辐射瘤学 辐射瘤学
背景情况:
- 区域节点辐射 (RNI) 用于治疗乳腺癌.
- 在骨淋巴结解剖 (ALND) 和即时淋巴结重建 (ILR) 后,RNI可以增加患乳腺癌相关淋巴的风险 (BCRL).
- 在ILR后的辐射剂量和BCRL之间的关系需要进一步调查.
研究的目的:
- 检查放射治疗 (RT) 剂量在直接淋巴重建 (ILR) 解剖位点和乳腺癌相关淋巴瘤 (BCRL) 的发展之间存在的关联.
主要方法:
- 一项针对23名侵袭性乳腺癌患者的前性研究,这些患者接受了ALND/ILR,随后进行了RNI.
- 淋巴的评估是基于手臂体积的变化和患者报告的症状.
- 对ILR部位和周围体积的剂量参数进行了分析,以分析淋巴的发展.
主要成果:
- 14名患者 (60.9%) 患有淋巴,其中4名 (17.4%) 在最后一次随访时符合BCRL标准.
- 较高的平均RT剂量,V35和V40至ILR+2厘米体积显著与淋巴有关.
- 确定了ILR+2厘米体积的值剂量,这些值以上的淋巴发病率显著更高.
结论:
- 增加对ILR部位和周围区域的RT剂量会增加淋巴的风险.
- 需要进一步的研究来确定剂量降低到低于确定的值是否可以降低BCRL率而不会影响瘤结果.
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