在随机乳腺癌试验SENOMACAC中,肩关节辐射剂量与手臂发病率之间的关联
Sara Alkner1, Matilda Appelgren2, Robert Szulkin2
1Department of Oncology, Faculty of Medicine, Institute of Clinical Sciences Lund, Lund University, Lund, Sweden; Skåne University Hospital Lund, Department of Hematology, Oncology and Radiation Physics, Lund, Sweden.
概括
在哨兵淋巴结活检后,高剂量辐射到肩关节可能会增加乳腺癌患者的手臂发病率. 需要进一步的研究来确定放射治疗的明确剂量限制.
科学领域:
- 在瘤学瘤学.
- 辐射疗法 辐射疗法
- 临床试验 临床试验
背景情况:
- 手术后的淋巴结辐射是乳腺癌的常见治疗方法.
- 肩部发病率是已知的并发症,但缺乏具体的剂量限制.
- 在乳腺癌患者中,SENOMAC试验研究了状淋巴结解剖 (ALND) 与哨兵淋巴结活检 (SLN).
研究的目的:
- 分析肩关节辐射剂量与患者报告的手臂发病率之间的关联.
- 用SENOMAC数据评估手术后的一年和三年的结果.
- 为了为肩关节的剂量-体积约束的发展提供信息.
主要方法:
- 分析了868名瑞典SENOMAC患者 (2015-2019) 的放射治疗计划.
- 肩关节的定义是使用自动细分的部头与1厘米边缘.
- 通过淋巴-ICF问卷评估了手臂发病率,重点是功能和移动性.
主要成果:
- 肩关节的辐射剂量在ALND和SLN组之间是相似的.
- 在SLN组中,较高的D0.5cc (接近最大剂量) 与3年后更糟糕的手臂发病率相关,特别是在乳腺保护手术后.
- 在ALND组中没有发现任何关联,也没有确定任何特定的剂量值.
结论:
- 在最大的肩关节辐射剂量和随后的手臂/肩部副作用之间存在潜在的联系.
- 在SENOMAC试验中,扩展后续调查将进一步了解长期手臂发病率.
- 这项研究强调了需要仔细规划放射治疗,以尽量减少乳腺癌患者的肩部发病率.
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