Methodological factors affecting the high recurrence rate after pulmonary vein isolation for new atrial fibrillation


  • Tomas Baleženti


Electrophysiology; atrial fibrillation; review; pulmonary vein isolation;


 Atrial fibrillation (AF) is a common arrhythmia in clinical practice, and there is still a lack of effective treatment methods. In recent years, domestic and foreign literature has shown that pulmonary vein isolation (PVI) can significantly improve the prognosis of AF patients, and it has opened the door for the treatment of AF. However, the recurrence rate of AF in follow-up observation is about 20%, which limits the clinical application of this technology. The factors affecting the recurrence rate of AF in PVI methodology involve the selection of target pulmonary veins and the size of the Lasso ring mapping electrode. The selection and anatomical location of AF, the identification and recording of pulmonary vein potential during operation, the selection of large-head ablation catheter, and the judgment of ablation endpoint are worthy of further study and discussion in order to improve the success rate of PVI and reduce the recurrence rate of AF.