Pulmonary Vein Isolation Strategy of Very High Power Short Duration in Patients With Paroxysmal Atrial Fibrillation

This study is comparing two methods of delivering very high-power, short-duration radiofrequency energy to electrically isolate the pulmonary veins (the veins that connect the lungs to the heart) during a heart procedure for paroxysmal atrial fibrillation (AF) — a type of irregular heartbeat that comes and goes. **You may be eligible if...** - You are 19 years or older - You have paroxysmal atrial fibrillation (AF that comes and goes, not permanent) - You are scheduled for a pulmonary vein isolation (PVI) procedure to treat your AF **You may NOT be eligible if...** - You have persistent or long-standing AF (not paroxysmal) - You have had a previous ablation or surgery for AF - You have a blood clot in the heart or had a stroke/blood clot event within the last 90 days - Your heart size or function does not meet the safety criteria - You are pregnant or planning to become pregnant Talk to your doctor to see if this trial is right for you.