在妇科恶性瘤的同时进行化学放射治疗时,盆骨髓剂量测量与急性血液毒性之间的关联
1Department of Radiation Oncology, The Fourth Affiliated Hospital of Soochow University, 9 Chongwen Road, Suzhou Industrial Park, Suzhou City, Jiangsu 215100, P.R. China.
Journal of radiation research
|January 15, 2026
概括
对于妇科癌症的盆腔放射治疗可以导致血液毒性. 使用PBM-V15 <80.44%和下PBM-V5 <91.25%限制骨髓 (PBM) 的辐射剂量,可以减少急性毒性并预防严重病例.
科学领域:
- 辐射瘤学 辐射瘤学
- 妇科瘤学 妇科瘤学
- 血液学 血液学 血液学
背景情况:
- 对于妇科癌症的盆腔放射治疗可以损害骨髓,导致血液毒性.
- 这种毒性通常会因并发化疗而恶化.
- 优化对骨盆骨髓 (PBM) 的辐射剂量对于管理骨髓抑制和保持治疗有效性至关重要.
研究的目的:
- 在患有妇科癌症的患者中研究PBM剂量-体积参数与急性血液毒性 (AHT) 之间的关联.
- 为了确定特定的PBM剂量-体积约束,可以在并发化疗或放射治疗期间减轻AHT.
主要方法:
- 一项追溯的队列研究,涉及61名接受化学放射治疗的妇科癌症患者.
- 使用强度调节放射治疗,包括盆腔淋巴结区域.
- 在治疗期间和治疗后两周,监测每周的全血细胞计数,以评估AHT.
主要成果:
- AHT的总体发生率为70.5%.
- PBM-V15是等级≥2 AHT (最佳切断点80.44%) 的独立预测因素,而较低的PBM-V5预测了等级≥3 AHT (最佳切断点91.25%).
- 将PBM-V15限制在<80.44%降低了≥2级AHT的风险,而严格的LPBM-V5约束 (<91.25%) 是防止≥3级AHT的关键.
结论:
- 在接受盆腔放射治疗的妇科癌症患者中,PBM-V15和LPBM-V5是AHT的显著预测因素.
- 将这些剂量-体积参数纳入放射治疗计划可以帮助节省骨髓并减少血液毒性.
- 这些发现支持在妇科恶性瘤的盆腔放射治疗方案中实施骨髓节约策略.
相关概念视频
Bone Marrow Sampling and Transplants
881
Bone marrow transplant is a potential cure for several diseases, including cancer and specific genetic disorders. Notably, this procedure is applicable for patients suffering from aplastic anemia, certain types of leukemia, severe combined immunodeficiency disease (SCID), Hodgkin's disease, non-Hodgkin's lymphoma, multiple myeloma, thalassemia, sickle-cell disease, and certain cancers.
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy...
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy...
881
Biological Effects of Radiation
17.6K
All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they...
17.6K


