Biomarkers in Patients Undergoing Atrial Fibrillation Ablation

A Single-center Observational Study to Find Biomarkers for the Outcome of Catheter Ablation in Patients With Atrial Fibrillation

The investigators aim to find biomarkers to determine the success of pulmonary vein isolation for the treatment of atrial fibrillation.

The investigators perform an observational study in patients undergoing pulmonary vein ablation to treat atrial fibrillation. Additionally, electrophysiological procedures not related to pulmonary vein isolation are also followed. The aim of the study is finding biomarkers that are able to predict short-term outcome of the procedure.The primary endpoint is defined as reoccurrences of atrial fibrillation within the first three months after pulmonary vein isolation.

Inclusion Criteria:

• patients with atrial fibrillation scheduled for pulmonary vein isolation with either radiofrequency of cryoballoon
• patients scheduled for an electrophysiological study without ablation
• patients with a catheter ablation at the cavotricuspid isthmus for the treatment of right atrial flutter

Exclusion Criteria:

• patients with concurrent pulmonary vein isolation and ablation of the cavotricuspid isthmus
• Acute myocardial infarction, coronary artery bypass graft surgery or open heart surgery within less than 3 months prior to inclusion