Differentiating macroreentrant from focal atrial tachycardias occurred after circumferential pulmonary vein isolation

Shih Lin Chang, Hsuan Ming Tsao, Yenn Jiang Lin, Li Wei Lo, Yu Feng Hu, Ta Chuan Tuan, Wen Chin Tsai, Chien Jun Chang, Kazuyoshi Suenari, Shih Yu Huang, Ching Tai Tai, Cheng Hung Li, Tze Fan Chao, Tsu Juey Wu, Shih Ann Chen^*