胃肠道出血是否会增加CF-LVAD支持患者血栓栓塞事件的风险?
Anh Nguyen1, Alexis Shafii1, Gabriel Loor1
1Division of Cardiothoracic Transplantation and Circulatory Support, Department of Surgery, Baylor College of Medicine, Houston, Texas, USA.
Artificial organs
|January 21, 2026
概括
胃肠道出血在连续流动左心室辅助器件 (CF-LVAD) 患者中显著增加了血栓栓塞事件的风险. 高龄,黑人种族和特定设备类型也会增加这种风险.
科学领域:
- 心脏病学 心脏病学
- 医疗器械 医疗器械
- 血管外科 血管外科
背景情况:
- 胃肠道出血是连续流动左心室辅助器件 (CF-LVADs) 患者的常见并发症.
- 管理胃肠道出血往往需要改变抗凝剂,这可能会增加血栓栓塞事件的风险.
- 这项研究调查了CF-LVAD接受者的胃肠道出血和血栓栓塞事件之间的关系.
研究的目的:
- 评估CF-LVADs患者中血栓栓塞发事件的发生率和危险因素.
- 为了确定胃肠道出血是否是血栓栓塞事件的重要预测因素.
- 确定与血栓栓塞风险增加相关的患者人口统计和设备特征.
主要方法:
- 来自机构Intermacs数据库 (2008年1月至2023年12月) 的数据分析,包括初级植入物和交换.
- 血栓塞栓事件的定义是缺血性中风,过渡性缺血性攻击或血栓 (不包括与先前存在的胃肠道出血有关的事件).
- 利用多变量逻辑回归来评估胃肠道出血作为血栓栓塞事件的危险因素.
主要成果:
- 在1075名CF-LVAD植入物中,32.2%发生了胃肠道出血,其中26.3%的患者出现了血栓栓塞事件.
- 胃肠道出血与血栓事件的风险增加52%有关 (OR 1.52,p=0.018).
- 在50岁以上的患者 (66%更高的风险,p=0.024),黑人患者 (两倍的风险,p<0.001) 和带有轴流或部分磁悬浮离心流LVAD的患者中,与完全磁悬浮装置相比,也观察到风险增加.
结论:
- 对于患有CF-LVADs的患者来说,血栓塞栓事件仍然是一个重大问题.
- 胃肠道出血是一种已确认的独立风险因素,可显著增加血栓栓塞的风险.
- 老年,黑人种族和特定的CF-LVAD设备类型与更高的血栓栓塞事件率有关,需要有针对性的管理策略.
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