Evaluation of Novel Waveforms Delivered Using the FARAPULSE™ PFA System

This trial is testing a new type of energy (called pulsed field ablation) delivered through a specialized catheter to treat atrial fibrillation — an irregular heartbeat where the upper chambers of the heart quiver instead of beating normally. Researchers want to see if a new waveform setting on the FARAPULSE device works safely and effectively. **You may be eligible if:** - You are 18 years of age or older - You have been diagnosed with persistent or paroxysmal (comes-and-goes) atrial fibrillation, confirmed by a doctor's note and heart rhythm tests within the past 6 months - You are willing and able to attend all follow-up visits **You may NOT be eligible if:** - Your heart's left upper chamber is significantly enlarged (diameter ≥ 5.5 cm) - You have had a previous ablation or heart surgery for abnormal rhythm (other than specific minor procedures) - You currently have a blood clot in your heart - You have certain heart conditions such as recent heart attack, severe valve disease, or a pacemaker/defibrillator already in place - You have had a stroke or serious bleeding event within the past 6 months - You are pregnant or have severe kidney, liver, or lung disease Talk to your doctor to see if this trial is right for you.