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首页> 外文期刊>PACE: Pacing and clinical electrophysiology >Discrepancy between activation and postpacing interval mapping in predicting atrial tachycardia foci: what is the mechanism?
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Discrepancy between activation and postpacing interval mapping in predicting atrial tachycardia foci: what is the mechanism?

机译:在预测房性心动过速病灶时激活和后起搏间隔作图之间的差异:是什么机制?

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摘要

A 67-year-old man with a tachycardia-induced cardiomyopathy developed a drug-refractory incessant atrial tachycardia [AT) after cavo-tricuspid isthmus (CTI)-dependent atrial flutter (AFL) ablation and was referred for electro-physiologic study (EPS) and catheter ablation. At the EPS, persistent CTI conduction block was confirmed by bidirectional pacing maneuvers. AT (cycle length = 260 ms) was induced by burst atrial pacing from the coronary sinus (CS). During the AT, the 12-lead electrocardiogram exhibited a negative saw-tooth pattern in the inferior leads, positive P waves in lead VI, and negative P waves in lead V6.
机译:一名67岁的患有心动过速引起的心肌病的人在依赖三头肌三侧峡部(CTI)的心房扑动(AFL)消融后出现了药物难治性持续性心动过速(AT),并被转诊至电生理研究(EPS) )和导管消融术。在EPS处,通过双向起搏动作确认了持续的CTI传导阻滞。 AT(周期长度= 260 ms)是由来自冠状窦(CS)的心房起搏引起的。在AT期间,12导联心电图在下导联中呈现负锯齿形,在VI导联中呈现正P波,在V6导联中呈现负P波。

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