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肺静脉内两种水平的阻滞
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作者 mcClennen S. mcLaughlin m. +1 位作者 josephson m. e. 郭宁 《世界核心医学期刊文摘(心脏病学分册)》 2005年第1期14-15,共2页
We present a 37-year-old woman with drug refractory atrial fibrillati on refe rred for a pulmonary vein (PV) isolation procedure who manifested a tachycardia with 2:1 intra-PV block within a dissociated PV.During abla... We present a 37-year-old woman with drug refractory atrial fibrillati on refe rred for a pulmonary vein (PV) isolation procedure who manifested a tachycardia with 2:1 intra-PV block within a dissociated PV.During ablation in the right su perior PV, the surface rhythm became normal sinus, with persistent atrial fibril lation within the PV. Shortly thereafter, an atrial tachycardia with a cycle len gth of 190 ms and 2:1 distal to proximal exit block was observed within the isol ated PV. Conduction block within a PV electrically isolated from the left atrium is a newly observed phenomenon that may have imp lications to the electrophysiologic properties of the PV muscular sleeves. 展开更多
关键词 正常窦性心律 房性心动过速 传出阻滞 电生理特性 持续性房颤 体表心电图 传导阻滞 右上肺静脉 左心房 周期长度
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