在心脏移植接受者与左心室辅助器件的捐赠者预测心脏质量的应用
Ross M Reul1, Qiudong Chen2, Joshua L Chan1
1Division of Cardiothoracic Surgery, Department of Surgery, Emory University School of Medicine, Atlanta, Georgia.
JHLT open
|March 27, 2025
概括
严重不足的供体心脏在耐用左心室辅助装置 (LVAD) 支持的患者心脏移植后的1年生存率恶化. 捐赠人心脏过大没有提供显著的生存益处,挑战了以前的假设.
科学领域:
- 心脏病学 心脏病学
- 移植医学 移植医学
- 医疗器械 医疗器械
背景情况:
- 预测心脏质量 (PHM) 和心脏移植结果之间确立的关联.
- 有限的数据存在于捐赠者PHM对LVAD桥接接收者的影响.
- 这项研究调查了LVAD桥接心脏移植接受者的捐赠心脏大小.
研究的目的:
- 评估捐赠者与接受者预测心脏质量 (PHM) 比率对心脏移植后结果的影响.
- 在LVAD桥接接收者中挑战过大捐赠心脏的理论好处.
主要方法:
- 从2015年至2021年接受持久性LVAD (HeartMate 2,HeartMate 3,HeartWare) 的10,806名成年患者的回顾性分析.
- 在7个捐助者与接受者PHM比率组中比较基线特征.
- 考克斯回归分析以评估PHM大小匹配对移植后1年生存时间的影响.
主要成果:
- 严重不足的供体心脏 (PHM比率<0.86) 与更糟糕的移植后1年生存率相关 (HR 1.30,p=0.03).
- 过大的供体心脏没有提供显著的生存优势.
- 在对HeartMate 3 LVAD患者的亚组分析中,这些发现是一致的.
结论:
- 接收者与持久的LVAD桥接,经历严重不足的捐赠者心脏更糟糕的结果.
- 与大小匹配的对照组相比,捐赠者心脏超大小并没有显著改善1年死亡率.
- 结果支持仔细的捐赠者-接受者尺寸匹配,避免 LVAD 支持的心脏移植候选人的尺寸不足.
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