Safety of Oral Anticoagulation Therapy Withdrawal after Successful Pulmonary Vein Antrum Isolation in Patients with Atrial Fibrillation and Associated High Risk Factors for Embolic Events (OAT Pilot Study)

The purpose of the study is to assess the safety of stopping oral anticoagulation therapy (OAT) in patients who have undergone a successful ablation procedure for atrial fibrillation. A successful ablation procedure for atrial fibrillation is defined by the protocol as being arrhythmia free 3 months after the procedure. The study will enroll patients into one of two arms and look at safety in both arms. One arm will have their anticoagulation therapy stopped; the other will remain on it.

You may be eligible for this study if you meet the following criteria:

• Conditions:
  Atrial Fibrillation
• Age: Between 1 Years - 99 Years
• Gender: All