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后壁隔离改善了持续性AF与快速后壁活动的结果:CAPLA子研究

Louise Segan¹, David Chieng¹, Sandeep Prabhu¹

¹Alfred Hospital, Melbourne, Australia; Baker Heart and Diabetes Research Institute, Melbourne, Australia; University of Melbourne, Melbourne, Australia.

JACC. Clinical electrophysiology

|September 13, 2023

概括

在心房动 (AF) 废除过程中,快速后壁 (PW) 活动识别了持续性AF患者,这些患者可以从额外的后壁隔离 (PWI) 中获益. 与单独的肺静脉隔离 (PVI) 相比,这种策略可以改善无心律失常的生存率.

科学领域:

电子生理学电子生理学
心脏病学心脏病学
医疗器械医疗器械

背景情况:

肺静脉隔离 (PVI) 的疗效在持续性心房 (PerAF) 中低于 Paroxysmal AF.
之前的研究,如CAPLA试验,没有支持PerAF的常规后壁隔离 (PWI).
研究肺静脉 (PV) 和后壁 (PW) 的电特性可以确定PerAF患者从PWI中受益.

研究的目的:

为了确定PV和PW电气特征是否预测CAPLA随机研究中的AF剥离结果.
在PerAF中确定特定的患者子组,这些患者可能会从额外的PWI中受益.
分析PV和PW电气特性对导管切除后AF复发的影响.

主要方法:

从CAPLA研究中对151名患者的分析随机分为PVI或PVI+PWI.
测量PV,PW和左心房附属部分的周期长度.
利用Cox比例危险回归来确定AF复发的预测因素.
使用心电图监测进行12个月的随访.

主要成果:

在PVI (51.7%) 和PVI+PWI (49.7%) 之间,12个月后总体无AF的情况相似.
快速的PW活动 (最短的PW周期长度<140毫秒) 与单独使用PVI的AF复发风险更高 (55.3%与46.5%相比).
在快速PW活动的患者中,添加PWI显著改善了无心律失常的存活率 (56.4%vs38.6%).
快速的光伏活动与废除结果没有相关性.

结论:

快速的PW活动预测了AF复发风险增加的导管切除后AF复发.
在PW活动快速的患者中,PWI补充显著改善了AF的自由.
识别快速的PW活动可以指导患者在PerAF中选择PVI+PWI.

关键词:

太阳能光伏周期的周期长度心房动是心房动的一种.在后面的墙壁上.快速的PW活动.

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