Arrhythmia and Electrophysiology Unit, Cardiology Department, University Hospital 12 de Octubre, Madrid, Spain.
J Cardiovasc Electrophysiol. 2021 Aug;32(8):2343-2345. doi: 10.1111/jce.15138. Epub 2021 Jul 16.
A middle-age woman underwent an electrophysiologic study due to recurrent atypical atrial flutter.
Radiofrequency ablation of cavotricuspid isthmus and anterior mitral line was performed. During energy delivery on the anterior left atrial wall, interatrial dissociation and complete block of the sinus impulse to the atrioventricular (AV) node was observed. AV node activation became dependent on a subsidiary left atrial rhythm.
Anatomical location of intra and inter-atrial connections must be taken into account when performing extensive ablation procedures, specially in cases with prior cardiac surgeries.
一位中年女性因反复发作的非典型性房扑而接受电生理研究。
进行了射频消融三尖瓣峡部和二尖瓣前连线。在左心房前壁能量传递过程中，观察到房间隔分离和窦房结冲动完全阻断房室（AV）结。AV 结的激活依赖于辅助性左房节律。
在行广泛消融术时，必须考虑到房间内和房间连接的解剖位置，特别是在有心脏手术史的情况下。
