Background: The pulmonary vein isolation (PVI) is a cornerstone of catheter ablation for atrial fibrillation (AF). According to current guidelines, PVI is indicated in selected patients with paroxysmal and persistent AF with the goal to reduce AF burden and symptoms (1). There are several technologies with novel technologies emerging constantly. Also, procedures differ (mainly in the trans-septal puncture, use of fluoroscopy and mapping systems) between centres. There are recommendations for periprocedural anticoagulation but different approaches to anticoagulation have not been evaluated in clinical registries. Aims: to establish a multicenter, multinational PVI registry and evaluate patient periprocedural management with emphasis on anticoagulation therapy and adherence to current guidelines.

Patients and Methods: We have set up a online based registry of PVI which includes the following southeast and central European countries (number of centers): Croatia (4), Slovenia (2), Serbia (2), Bulgaria (1). Registry constitutes of 130 parameters that are filled up by drop down menu. To complete the online forms it takes 10-12 minutes per patient after the PVI procedure.

Results/Current status: Since initiation of the registry five months ago, 150 consecutive patients who underwent PVI have been included in 7 centres. However, 3 centres have included less than 10 patients and there are still 2 centres that have not started the enrolment. Among 150 entries, 10 (6%) are incomplete, while other contain all 130 parameters.

Discussion and conclusion: Registries are becoming increasingly popular, widespread and large in size (2). Our registry was established to provide us ‘’real world’’ data on PVI periprocedural patient management. Also, registry upgrade is being performed to allow follow up data entries and long term PVI success rates evaluation.