左束分支与心房阻塞和正常心脏功能中的上节奏:透气管后大动脉植入:PhysTAVI试验
Margarida Pujol-López1,2, Ander Regueiro1,2, Freddy R Graterol1,2
1Institut Clínic Cardiovascular, Hospital Clínic, Universitat de Barcelona, Catalonia, Spain.
CJC open
|January 16, 2026
概括
左束枝节奏 (LBBP) 和右心室 (RV) 节奏显示,在经过透气管大气门植入 (TAVI) 后,高度心房塞的中期结果相似. 这项试点研究发现LBBP可行,但需要进行更大规模的试验来确认临床益处.
科学领域:
- 心脏病学 心脏病学
- 电子生理学 电子生理学
- 心血管干预 心血管干预
背景情况:
- 高度心房静脉 (AV) 阻塞是透气管主动脉植入 (TAVI) 后的一种并发症.
- 对于这些患有保留左心室喷射分数 (LVEF) 的患者来说,最佳节奏模式仍然不清楚.
- 这项试点研究解决了对比节奏策略的证据需求.
研究的目的:
- 为了比较左捆分支节奏 (LBBP) 与右心室 (RV) 节奏.
- 为了评估12个月的随访后的联合临床终点,在TAVI后保存LVEF和高度AV阻塞的患者中.
- 评估LBBP在这个特定患者群体中的可行性.
主要方法:
- 试点随机试验比较LBBP和RV节奏.
- 纳入标准:TAVI后,高度的AV阻塞,LVEF≥50%.
- 主要终点:通过改善NYHA类或6分钟步行测试距离的生存率.
主要成果:
- 在LBBP (33.3%) 和RV节奏 (25%) 组之间,主要终点没有显著差异 (P=1.0).
- LBBP组显示QRS持续时间显著缩短 (-39毫秒对0毫秒,P<0.001).
- 在LBBP组,隔膜闪光突出显著较低 (0毫米对2毫米,P=0.03).
结论:
- 在老年患者中,LBBP和RV节奏表现出类似的中期临床结果,TAVI后LVEF保持.
- 试点研究证实了LBBP在这个群体中的可行性.
- 更大的随机试验是有必要的,以确定差异性的临床结果和长期疗效.
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