针对左束分支内不同节奏位置的基于心电图的定制标准
Sem Briongos-Figuero1, Álvaro Estévez-Paniagua1, Ana Sánchez-Hernández1
1Cardiology Department, Hospital Infanta Leonor Hospital, Madrid, Spain.
Heart rhythm
|September 23, 2023
概括
新的心电图 (ECG) 标准可以在特定的节奏位置确认左束枝 (LBB) 节奏 (LBBP). 这些量身定制的心电图值可以提高LBBP确认的诊断准确性,在各种LBB站点进行LBBP确认.
科学领域:
- 心脏病学 心脏病学
- 电力生理学 电力生理学
- 医学诊断 医学诊断 医学诊断
背景情况:
- 电心电图 (ECG) 标准对于确认左束枝节律 (LBBP) 是必不可少的.
- 目前LBBP确认的ECG截止值在左束分支 (LBB) 内的各种节奏位置中缺乏验证.
研究的目的:
- 评估V6-R波峰时间 (RWPT),V6-V1间峰间隔和aVL-RWPT的诊断性能,以在各种节奏站点区分LBBP.
- 为了确定这些ECG标准的100%特定切割值,在LBB内的每个不同的节奏位置.
主要方法:
- 确诊LBBP的患者根据节奏部位被分类为子组:左束干节奏 (LBTP),左隔膜带节奏 (LSFP),左后带节奏 (LPFP) 和左前带节奏 (LAFP).
- 对每个子组分析了V6-RWPT,V6-V1间峰间和aVL-RWPT的诊断性能和100%的特异性截止值.
主要成果:
- 总共有147名具有明确LBB捕获的患者被分析;左侧带节奏更常见 (82.8%),而不是LBTP (17.2%).
- 所有评估的心电图标准都表明,对于跨子组的LBBP歧视,诊断性能良好.
- 在每个节奏位置 (LBTP,LPFP,LAFP,LSFP) 确定了V6-RWPT,V6-V1间隙和aVL-RWPT的特定100%特异性切断值.
结论:
- 定制的基于心电图的标准可以有效地确认LBBP在LBB内的不同节奏位置.
- 特定地点的ECG标准提高了LBBP确认的准确性.
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