使用新型自动电压分析比较左心房低压区域的鼻节律和心房动:一项试点研究
James Mannion1, Kathryn Hong1,2, Sarah-Jane Lennon1
1Atrial Fibrillation Institute (AFI) and Cardiovascular Research Institute (CVRI), Heart and Vascular Centre, Mater Private Hospital, Dublin, Ireland.
Cardiology research
|August 10, 2023
概括
左心房 (LA) 的低电压区域 (LVAs) 显示了心房动 (AF) 和鼻节律 (SR) 之间的疾病组织 (0.21-0.5 mV) 的差异. 严重的LVA (≤0.2 mV) 仍然可比,这表明节奏映射对患病组织的影响超过严重的痕.
科学领域:
- 电力生理学 电力生理学
- 心脏解剖学 心脏解剖学
- 医疗成像医学成像
背景情况:
- 低电压区域 (LVAs) 是左心房 (LA) 痕的替代品.
- 之前的研究使用点对点分析将鼻节律 (SR) 和心房动 (AF) 电压关联起来.
- 高密度自动电压组图分析 (VHA) 为LA电压评估提供了一种新的方法.
研究的目的:
- 为了比较SR中的LA电压组合与使用VHA的AF.
- 评估映射节奏对LVA特征的影响,持续性AF (PeAF) 患者进行肺静脉隔离 (PVI).
主要方法:
- 对接受PVI的10名PeAF患者的回顾性分析.
- 在PVI后的AF和SR中进行的高密度LA电压映射.
- 应用于六个解剖细分的电压组图分析 (VHA),将LVAs分类为0-0.5mV的比率.
主要成果:
- 患病的LA组织 (0.21-0.5mV) 负担在AF中明显高于SR,特别是在前部,屋顶,侧部和后部段.
- 严重的LVAs (≤0.2mV) 负荷显示了AF和SR之间的良好的相关性和可比性,在后壁上注明了一个例外.
- 绘制节奏显示了对LA电压范围的差异效应,影响患病组织比严重的LVAs更大.
结论:
- 映射节奏显著影响病变的LA组织的评估 (0.21-0.5mV),在AF期间观察到更高的负担.
- 严重的LA痕 (≤0.2mV) 似乎在AF和SR之间相对一致,除了后壁.
- 这些发现强调了在解释LA电压图时考虑映射节奏的重要性,特别是在疾病组织的特征化中.
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