PO-02-094 ALL PULMONARY VEIN ISOLATION STRATEGIES ARE EQUALLY EFFECTIVE IN REDUCING THE RECURRENCE OF ATRIAL ARRHYTHMIAS

Ostial and antral pulmonary vein isolation techniques have different properties. In addition, there are differences between radiofrequency cryoballoon ablation based on tissue contact characteristics. Finally, posterior wall (PWI) has been proposed as an adjuvant to PVI because of embryological origin similarities. We examine the results ostial RF ablation, PWI adjunction in DECAAF-II trial with regard recurrence atrial arrhythmias after ablation. Patients persistent AF from who underwent only or + were included. All patients LGE-MRI before 3 months The electroanatomic maps at time procedure displaying location lesions merged baseline images, two reviewers analyzed classified resulting reconstructions. if immediate proximity veins’ ostium included a portion antrum around veins. extracted separate group. followed up for total 18 using daily single-lead smartphone ECG strips. primary outcome this analysis was 90-day blanking period. A 367 considered analysis. 211 PVI, 81 31 had PWI, 44 cryoablation. Baseline characteristics comparable terms age, sex, fibrosis percentage, comorbidity profile (hypertension, diabetes, hyperlipidemia, CAD, history stroke), medication history, except significant difference heart failure (10.4% vs. 18.5% 29% 27.3%, p = 0.004) prior AAD use (46.9% 44.4% 64.5% 29.5%, 0.026). Recurrence rates among four groups: 91 (43%) group, 39 (48%) 12 (39%) 22 (50%) cryoablation group (log rank P=0.76). AF, all show equal efficacy arrhythmia recurrence. Isolation during no procedural advantage.