预测心脏质量:2个心室的故事
Eduard Ródenas-Alesina1, Farid Foroutan2, Chun-Po Fan2
1Ted Rogers Centre for Heart Research (E.R.-A., I.B., N.A., H.J.R., Y.M.), Peter Munk Cardiac Centre, University Health Network, Toronto, ON, Canada.
Circulation. Heart failure
|August 21, 2023
概括
对左心室和右心室分别评估捐赠者和接受者预测心脏质量 (PHM),可以改善心脏移植后1年的移植失败风险预测. 这种精细的匹配策略提高了捐赠者-接受者兼容性和捐赠器官利用率.
科学领域:
- 心脏病学 心脏病学
- 移植医学 移植医学
- 生物统计学 生物统计学
背景情况:
- 预测心脏总质量 (PHM) 是在心脏移植中供体-接受体大小匹配的标准.
- 单独测量右心室 (RV) 和左心室 (LV) 的PHM可能会提高1年移植失败的风险预测.
研究的目的:
- 评估单独的LV和RVPHM评估是否改善了与总PHM相比,1年移植失败的风险预测.
- 为了评估风险的重新分类,使用组合的LV和RVPHM与总PHM.
主要方法:
- 从UNOS数据库 (2000-2018) 中对成年心脏移植接受者的分析.
- 使用限制立方线的LV和RVPHM的建模.
- 调整了考克斯回归以确定与1年移植失败的关联.
- 净重新分类指数 (NRI) 用于评估风险重新分类.
主要成果:
- 在总PHM和1年的移植失败风险之间观察到U形的关联.
- 对于LV大小不足 (>5%) 和RV大小过大 (>20%) 发现了移植失败风险的增加.
- 单独的LV/RV PHM评估给出了8.5%的NRI,用于改进风险重新分类.
结论:
- 捐赠者-接受者PHM匹配风险受LV不足和RV过大影响.
- 对LV和RVPHM的单独评估完善了心脏移植的捐赠者-接受者匹配.
- 这种方法可以尽量减少1年的移植失败,并增加捐赠器官的利用率.
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