ABSTRACT

Cryoballoon ablation for atrial fibrillation (AF) has become a frequently used therapy after failure of at least one antiarrhythmic drug. The main target of AF ablation has been durable pulmonary vein isolation. However, it is unclear if ablation strategies need to be modified after recurrence. Herein, we presented a female patient undergoing successful pulmonary vein re-connection ablation after left atrial scar mapping. In electroanatomical mapping, gray area shows intense scar tissue. Gray, red, and purple areas indicate atrial potentials b 0.5 mV, 0.5– 1.5 mV, and N1.5 mV, respectively. Please note that there is a non-scar area in the bottom of right inferior pulmonary vein (arrow).

Keywords: Atrial fibrillation Mapping Ablation Cryoballoon Radiofrequency