在跨导管大动脉置换后,左束枝块或永久起器对中期左心室喷射小部分的影响
Ilan Merdler1, Brian C Case1, Itsik Ben-Dor1
1Section of Interventional Cardiology, MedStar Washington Hospital Center, Washington, DC, United States of America.
概括
跨导管大动脉置换 (TAVR) 后的新导电异常可以降低左心室喷射率 (LVEF). 对于TAVR后出现新的导电障碍的患者,长期监测至关重要.
科学领域:
- 心脏病学 心脏病学
- 心脏电生理学 心脏电生理学
- 干预心脏病学 干预心脏病学
背景情况:
- 过导管大动脉置换 (TAVR) 是对大动脉狭窄的常见手术.
- 导电干扰对TAVR后左心室喷射率 (LVEF) 的长期影响尚不清楚.
- 了解这些影响对于优化患者的治疗结果至关重要.
研究的目的:
- 为了研究LVEF在TAVR后长达两年的变化.
- 评估新的导电异常对TAVR后的LVEF的影响.
- 为了确定需要在TAVR后更密切监测的患者群体.
主要方法:
- 在2012年至2020年期间接受TAVR的730名患者的回顾性分析.
- 患者根据TAVR前后传导状态进行分类:没有异常,左捆支部阻塞 (LBBB),先前存在的永久起器 (PPM) 和新的PPM要求.
- 左心室喷射分数 (LVEF) 在基线,TAVR后30天,1年和2年被评估.
主要成果:
- 没有导电异常的患者在出院时具有最高的LVEF (57.4±11.5%).
- 新的LBBB与LVEF下降6.3%,而新的PPM要求在两年内下降4.1%.
- 在没有导电问题的患者和先前存在PPM的患者中,LVEF保持稳定.
结论:
- 新的导电异常,特别是新的LBBB或需要PPM,与TAVR后LVEF的下降有关.
- 在TAVR后出现新的导电障碍的患者中,对左心室功能进行长期监测是必不可少的.
- 这些发现强调了在TAVR后管理导电系统变化的重要性,以保持心脏功能.
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