通过超高分辨率标测揭示的经冠状窦肌组织的心外膜桥。
Epicardial bridge via the coronary sinus musculatures revealed by ultra-high-definition mapping.
作者信息
Yang Ying Chi, Aung Thein Tun, Doshi Hardik, Bailin Steven J
机构信息
Department of Internal Medicine, University of Iowa, IA, USA.
Department of Cardiac Electrophysiology, University of Iowa, IA, USA.
出版信息
J Electrocardiol. 2020 Jul-Aug;61:106-111. doi: 10.1016/j.jelectrocard.2020.04.015. Epub 2020 Apr 24.
Mapping and ablation of perimitral flutter, a macro-reentrant tachycardia, can be sometimes challenging. We describe a case of perimitral atrial flutter following the pulmonary vein isolation in which mitral isthmus ablation failed to terminate the arrhythmia due to epicardial-endocardial breakthrough via the muscle fibers of coronary sinus. Ultra-high-definition mapping system was utilized to locate the epicardial bridge, and spot ablation of the lesion subsequently terminated the arrhythmia.
峡部周围性房扑是一种大折返性心动过速，对其进行标测和消融有时具有挑战性。我们描述了1例肺静脉隔离术后发生峡部周围性房扑的病例，该例中，由于经冠状静脉窦肌纤维的心外膜-心内膜突破，二尖瓣峡部消融未能终止心律失常。采用超高分辨率标测系统定位心外膜桥，随后对病变部位进行点状消融，终止了心律失常。
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