在局部高级非小细胞肺癌放射治疗后预测心脏不良事件
Hyunsoo Joshua No1, Felicia B Guo2, Natalie Jung-In Park1
1Department of Radiation Oncology, Stanford University School of Medicine, Stanford, California, USA.
JACC. CardioOncology
|January 11, 2024
概括
肺癌的放射治疗增加了心脏事件的风险. 对左心脏和冠状动脉 (CAC) 评分的较高剂量预测了这些事件,有助于风险分层.
科学领域:
- 心血管成像和放射瘤学.
- 发现治疗毒性的生物标志物.
- 胸部放射治疗中的风险预测.
背景情况:
- 胸部放射疗法存在严重心脏事件的风险.
- 了解心脏事件的预测因素至关重要.
- 影像生物标志物和辐射剂量在预测心脏事件中的作用仍未得到充分研究.
研究的目的:
- 为了研究心脏基底结构辐射剂量与冠状动脉 (CAC) 评分之间的关联.
- 确定这些因素在放射治疗后发生心脏事件的预测值.
主要方法:
- 用放射治疗治疗的局部晚期非小细胞肺癌患者 (2006-2018) 的回顾性分析.
- 心脏基结构的轮和辐射剂量的测量 (2-Gy相当).
- 视觉和自动CAC评分的比较;使用竞争风险模型分析等级≥3的心脏事件.
主要成果:
- 在视觉和自动CAC评分之间观察到显著的相关性 (r=0.72,P<0.001).
- 接受15 Gy (HR: 1.38) 和CAC评分>5 (HR: 2.51) 的左心总体体积是心脏事件的独立预测因素.
- 结合年龄,CAC分数和辐射剂量的综合风险模型确定了一个高风险组,心脏事件发生率明显高 (28.9%对6.9%).
结论:
- 超过20%的患者在胸部放射治疗两年内经历心脏事件.
- 辐射剂量对TotalLeft心脏和CAC分数的预测是心脏事件的重要预测因素.
- CAC成为放射治疗引起的心脏事件的有价值的预测风险因素.
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