在不同的双边电极节奏向量配置中,对电生理学左束分支节奏特性进行比较
Hao Wu1, Longfu Jiang1,2, Jiabo Shen1
1Department of Cardiovascular Medicine, Ningbo No. 2 Hospital, Ningbo, Zhejiang, China.
Frontiers in cardiovascular medicine
|March 27, 2025
概括
使用双边阴极和环双极配置的左束分支节奏 (LBBP) 显著降低了节奏值. 这种优化的配置还可以实现较快的心室激活与传统的双极节奏相比.
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) 提供平衡的心室激活,但通常需要高节奏输出.
- 传统的单极节奏可能不如双极LBBP有效.
- 优化电极配置对于高效的LBBP至关重要.
研究的目的:
- 为了比较LBBP在不同双边电极节奏向量配置中的电生理学特征.
- 为了识别减少节奏输出要求的配置.
- 通过各种LBBP设置来评估心室激活时间.
主要方法:
- 招募了57名符合左束枝 (LBB) 捕获标准的患者.
- 测试了三种双边电极调节向量配置.
- 在七种捕获模式中分析了心电图 (ECG) 和电图 (EGM) 参数.
主要成果:
- 与Tip Bipolar (1.2±0.5V与2.7±1.0V相比) 相比,双边阴极和环双极配置在完全融合模式下显著降低了步调值.
- 这种配置还导致更短的P-QRS (116.9±12.8ms) 和V1右心室加速时间 (RWPT) (94.5±12.3ms).
- 最短的V6 RWPT (64.9±9.7ms) 始终被观察到.
结论:
- 双边阴极和环双极配置有效地降低了LBBP的完全聚变模式捕获值.
- 这种配置提供了改进的电生理学特征,包括更快的心室激活.
- 优化的电极配置是提高LBBP效率和降低能源需求的关键.
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