Posterior wall isolation using the Cryoballoon in conjunction with pulmonary vein ablation is superior to pulmonary vein isolation alone in patients with persistent atrial fibrillation. A multi-center experience. Expires on July 31, 2020 Eligible for Cardiology, Interventional Cardiology, Pulmonology, Cardiac Electrophysiology, and Cardiac Surgery Specialists. IPOKRATE team has selected this CME activity. Register, complete & earn CME credits...