在两名心脏再同步治疗心脏起器植入的患者中,从左束枝节奏到左心室侧壁的导电时间
Takefumi Fujito1, Ken Masuda1, Hirohito Takahashi2
1Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan.
Journal of cardiology cases
|August 19, 2024
概括
左捆枝节奏 (LBBP) 可能并不总是改善左心室 (LV) 导电. 在LBBP期间的长导电时间表明CRT的潜在无效性. 在这些情况下,左束分支优化CRT (LOT-CRT) 可能更有效.
科学领域:
- 心脏病学 心脏病学
- 电子生理学 电子生理学
- 医疗器械 医疗器械
背景情况:
- 左捆枝节奏 (LBBP) 是心脏再同步治疗 (CRT) 的新兴技术.
- 然而,它的有效性取决于改善左心室 (LV) 电导.
- LBBP可能并不总能解决LV传导干扰.
研究的目的:
- 在LBBP期间评估LV电导延迟.
- 评估左捆支部优化CRT (LOT-CRT) 的可行性.
主要方法:
- 在两个患者中测量了从LBBP到LV传感 (LBBP-LV) 的传导时间.
- 在领先V6 (Stim-V6RWPT) 中分析了QRS持续时间和刺激到峰值的R波.
- 在各种LV地点评估LBBP-LV间隔.
主要成果:
- 在这两位患者的LV中侧面区域,LBBP-LV传导时间相对较长.
- 在LBBP期间的QRS持续时间为160毫秒和156毫秒.
- 刺激-V6RWPT间隔为74毫秒和66毫秒.
结论:
- 长时间的LBBP-LV传导时间可能表明CRT不足最佳.
- 当LBBP未能改善LV传导延迟时,LOT-CRT可能会提供更有效的解决方案.
- 需要进一步的研究来优化CRT策略.
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