在鼻腔节律期间的功能基质映射特征预测了复发性心房低心率的临界地带
Hikmet Yorgun1,2, Cem Çöteli1, Gül Sinem Kılıç1
1Department of Cardiology, Faculty of Medicine, Hacettepe University, Ankara, Turkey.
Journal of cardiovascular electrophysiology
|June 3, 2023
概括
在鼻腔节律期间的功能基质映射有效地识别了心房高心率 (AT) 的关键脉. 减速区在低电压区域中精确定位缓慢导电,为心房痕患者指导除策略.
科学领域:
- 电力生理学 电力生理学
- 心脏病学 心脏病学
- 医疗成像医学成像
背景情况:
- 心房低心率 (AT) 是患有心房痕的患者常见的心律失常.
- 在鼻腔节律期间使用晚期激活映射预测AT的关键地带 (CI) 需要进行系统的评估.
- 这项研究研究了功能基质映射 (FSM) 特性,与心房低压区域患者中重新进入的ATs的CI相关.
研究的目的:
- 评估心房晚期激活映射在鼻节律期间用于预测心房高心率 (AT) 关键脉 (CI) 的实用性.
- 调查功能基质映射 (FSM) 特性与在患有底层心房低压区域的患者中重新进入的ATs的CI之间的关系.
主要方法:
- 35名左AT患者接受了3D高密度映射的导管切除.
- 电压映射和同时晚期激活映射在鼻腔/节奏节奏期间进行,以确定减速区 (DZ).
- 在AT诱导期间的激活映射确定了CI,并且在去除后监测了AT复发.
主要成果:
- 低压区域 (<0.5 mV) 占左心房的37.1%.
- 在低电压区域确定了减速区 (DZ),并与重新进入的ATs的所有关键地峡 (CI) 相结合.
- 对于检测CI的DZs的积极预测值为80.4%,在手术后74.3%的AT复发率为74.3%.
结论:
- 在鼻腔节律期间的功能基质映射 (FSM) 对于预测AT的CI很有用.
- 减速区 (DZ) 表现出碎片化的信号和缓慢的导电,指导着心房痕中切除策略.
- 这种方法有助于为患有潜在心房痕和AT的患者量身定制切除策略.
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