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基于CT的管位置预测了HeartMate 3 LVAD患者的神经风险

Min-Fang Chao^1,2, Katelyn E Ingram¹, Tanu Garg³

¹DeBakey Heart & Vascular Center, Houston Methodist Hospital, Houston, TX.

|March 9, 2026

概括

优化HeartMate 3 (HM3) 设备植入可能会减少神经系统不良事件 (ANE). 特定的管定位,包括输入深度和角度,在接受HM3左心室辅助器件的患者中显著影响ANE风险.

科学领域:

心脏病学心脏病学
生物医学工程生物医学工程
神经外科神经外科

背景情况:

尽管血液兼容性得到改善,但对HeartMate 3 (HM3) 左心室辅助器件 (LVAD) 接受者来说,不良神经事件 (ANE) 仍然是一个重大问题.
有限的数据存在于联合入流和出流管定位对ANE风险的影响.

研究的目的:

调查输入和输出管定位与HM3 LVAD接受者ANE发生率之间的关联.
为了确定最佳的管定向参数,以潜在地减轻中风风险.

主要方法:

在103名HM3接受者 (2016-2024) 的单中心回顾性研究中,使用对比度增强的心脏CT.
量化输入角度,输入深度,距离前壁的距离和输出角度.
使用卡普兰-梅尔和多变量考克斯回归分析ANE关联的分析,通过ROC分析确定最佳切线.

主要成果:

24%的患者在平均后续3.1年中经历了ANE.
较浅的输入深度 (≤14.5毫米) 和接近下壁的输入角度 (≤-4.1°) 独立地与增加NEE风险有关.
较大的外流角度 (> 42.7°) 也与ANE独立相关.
较多的管相关的解剖学风险因素与较差的5年无ANE生存率相关.

结论:

较浅的输入深度,较低的输入角度和较大的输出角度与HM3患者的ANE显著相关.
在植入过程中优化管定向对于可能降低这种患者群体中风风险至关重要.

关键词:

有关神经系统的不良事件 (ANE)管的位置管的位置心中的伴侣3 (HM3)输入深度是输入的深度.在LVAD和LVAD之间.神经学风险神经学风险

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