Regular atrial tachycardias developing after cryoballoon pulmonary vein isolation: Incidence, characteristics, and predictors

textabstractAimsCryoballoon ablation (CBA) is a well-used technique when performing pulmonary vein (PV) isolation in patients with paroxysmal atrial fibrillation (AF). Our aim is to describe incidence, characteristics, and clinical predictors for developing atrial tachycardias (ATs) after cryoballoon PV isolation in patients with paroxysmal AF.Methods and resultsThe study population consisted of 181 consecutive patients undergoing a first CBA. All patients received an event-recorder before cryoablation and transmitted daily electrocardiogram (ECG) during 1 month before ablation and 3 months after. Further follow-up consisted of 24 h Holter monitoring and ECG registration every 3 months and also in patients presenting with symptoms. A mean follow-up period was 497.9 ± 283.9 days, and 175 patients completed follow-up. In 14 (8%) patients regular ATs were registered. In mul