A 58-year-old male with recurrent atrial tachycardia (AT) after atrial fibrillation ablation was admitted for a second procedure. During the second procedure, the activation map showed a focal tachycardia with centrifugal activation. However, it was finally identified as a macroreentrant AT. This case highlights the significance of entrainment mapping in differentiating the mechanism of recurrent AT even when the activation map suggests focal AT. Focal AT can be excluded when a perfect post-pacing interval (PPI) is observed in the atrial segment opposite to the "earliest" activation site.
第一作者机构：[1]Capital Med Univ, Beijing Anzhen Hosp, Ctr Atrial Fibrillat, Dept Cardiol, Beijing 100029, Peoples R China;
通讯作者：
通讯机构：[1]Capital Med Univ, Beijing Anzhen Hosp, Ctr Atrial Fibrillat, Dept Cardiol, Beijing 100029, Peoples R China;[2]Capital Med Univ, Beijing Anzhen Hosp, Ctr Atrial Fibrillat, Dept Cardiol, 2 Anzhen Rd, Beijing 100029, Peoples R China
推荐引用方式(GB/T 7714)：
Yan Qian,Dong Jianzeng,Ma Changsheng.Recurrent pseudo focal atrial tachycardia after ablation of persistent atrial fibrillation[J].ACTA CARDIOLOGICA.2013,68(2):213-215.doi:10.2143/AC.68.2.2967283.
APA：
Yan, Qian,Dong, Jianzeng&Ma, Changsheng.(2013).Recurrent pseudo focal atrial tachycardia after ablation of persistent atrial fibrillation.ACTA CARDIOLOGICA,68,(2)
MLA：
Yan, Qian,et al."Recurrent pseudo focal atrial tachycardia after ablation of persistent atrial fibrillation".ACTA CARDIOLOGICA 68..2(2013):213-215
