依赖于房顶的房性心动过速，其心外膜传导通路被左心房后壁消融消蚀术所掩盖。
Roof-dependent atrial flutter with epicardial conduction pathway masked by left atrium posterior wall debulking ablation.
机构信息
Department of Cardiology, Kimitsu Central Hospital, Kisarazu, Japan.
Department of Cardiology, Chiba University Hospital, Chiba, Japan.
出版信息
Ann Noninvasive Electrocardiol. 2023 Jan;28(1):e12997. doi: 10.1111/anec.12997. Epub 2022 Jul 21.
Roof-dependent atrial flutter (AFL) is a major tachyarrhythmia rotating in the left atrium (LA). Here, we describe a case of roof-dependent AFL during atrial fibrillation ablation. LA posterior wall (LAPW) debulking ablation was performed before the induction. Atrial tachycardia (AT) was induced by burst pacing, and the 3D mappings showed a focal pattern from the LA inferior area. The post-pacing interval from the roof and bottom line corresponded to the AT cycle length. The LAPW debulking ablation masked roof-dependent AFL due to the lack of endocardium potentials in the LAPW. We report that roof-dependent AFL connected by epicardium fibers.
依赖房顶的房性心动过速（房扑）是一种主要的在左心房（LA）内旋转的快速性心律失常。在此，我们描述一例在房颤消融过程中发生的依赖房顶的房扑。LA 后壁（LAPW）减容消融在诱发前进行。房性心动过速（AT）通过burst pacing 诱发，3D 标测显示出从 LA 下壁区域的局灶性模式。起搏后间隔与房顶和底线相对应，与 AT 周期长度相对应。由于 LAPW 内缺乏心内膜电位，LAPW 减容消融掩盖了依赖房顶的房扑。我们报告了一种由心外膜纤维连接的依赖房顶的房扑。
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