风险晚期辐射亡超过5年后的立体射线外科手术
Neal S McCall1,2, Annabel Lu1, Benjamin D Hopkins1
1Departments of1Radiation Oncology and.
Journal of neurosurgery
|November 1, 2024
概括
放射性亡风险在立体性放射性手术后的五年内仍然存在. 晚期辐射亡的关键危险因素包括获得12 Gy的大脑体积和之前的早期辐射亡.
科学领域:
- 神经学 神经学
- 放射学 放射学是一门学科.
- 在瘤学瘤学.
背景情况:
- 放射性亡 (RN) 是已知的立体放射性手术 (SRS) 的并发症,通常发生在两年内.
- 晚期RN (LRN),发生在SRS后五年以上,人们对其了解较少.
- 这项研究调查了LRN发生率和相关风险因素.
研究的目的:
- 分析发生在立体性放射性外科手术 (SRS) 后五年以上的晚期辐射亡 (LRN) 的发生率.
- 确定与LRN发展相关的风险因素.
- 为SRS治疗患者的临床管理和随访策略提供信息.
主要方法:
- 用SRS治疗瘤或动脉静脉形缺陷的患者的回顾性分析.
- 纳入标准:超过5年的临床和连续MRI随访.
- LRN定义为新的神经症状,成像发现没有复发;使用Cox比例危险模型进行分析.
主要成果:
- 219名患有297个病变的患者接受了17 Gy的中位数剂量和7.4年的中位数随访.
- 8.7%的患者 (23/297个病变) 中发生了LRN,中位数是SRS后6.1年.
- 在多变量分析中,LRN的显著风险因素是:大脑V12Gy>5厘米3 (HR 6.01) 和早期RN的病史 (HR 9.53).
结论:
- 放射性亡的风险延伸到SRS.之后的五年之后.
- 晚期RN是一个独特的临床实体,对患者管理有重大影响.
- 大脑V12Gy>5cm3和早期RN之前的患者需要长期,警的随访.
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