围直间隔器使用与前列腺放射治疗后的短期并发症之间的关联在基于国家索赔的分析中
Peter S Palencia1, Xiangyi Xi2, Xiwen Zhao2
1Department of Urology, Yale School of Medicine, New Haven, CT.
Urology practice
|March 11, 2026
概括
周围间隔器可以减少接受放射治疗的前列腺癌患者的尿路副作用和医疗费用. 然而,它们并没有显著改善直肠毒性结果.
科学领域:
- 在瘤学瘤学.
- 辐射瘤学 辐射瘤学
- 医疗器械 医疗器械
背景情况:
- 周向间隔器旨在尽量减少前列腺放射治疗期间对直肠的辐射暴露.
- 有限的大规模数据存在于临床试验之外的间隔器使用的临床结果.
研究的目的:
- 评估周直间隔器在减少生殖尿道和直肠毒性方面的实际有效性.
- 评估围直间隔器在前列腺放射治疗后对医疗保健成本的影响.
主要方法:
- 使用索赔数据库,从2016年至2022年进行前列腺放射治疗的32319名患者的回顾性分析.
- 在12个月内,在带有和没有周直间隔器的患者之间,比较了生殖尿道和直肠毒性.
- 采用多变量考克斯模型和成本分析.
主要成果:
- 周围间隔器的使用 (18%的患者) 与尿路毒性,包括尿失禁和尿路感染 (HR 0.88-0.86) 的较低率有关.
- 没有观察到任何原因的直肠毒性显著差异 (HR 0.94,p=0.09).
- 在间隔器组中,12个月的医疗保健总费用明显较低 (35,417美元对43,514美元).
结论:
- 周向间隔器与减少短期尿道毒性和降低前列腺放射治疗中的医疗费用有关.
- 该研究没有证明在直肠毒性方面具有统计学意义的益处,这是使用间隔器的主要指示.
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