Pragmatic Evaluation of a Pentaspline Pulsed Field Ablation System to Treat Atrial Fibrillation and Related Arrhythmias

Inclusion Criteria: * Age 18 or older * Diagnosed with atrial fibrillation with or without concomitant atrial flutter by ECG at some point in the past, and by any criteria (ECG or clear symptoms within the past year) * Previous catheter ablation for other arrhythmias (including left-sided ablation, but not for AF) is allowed * Planned for a clinically-indicated catheter ablation procedure for managing paroxysmal or persistent atrial fibrillation in accordance with the following recommendations in the ACC/AHA/ACCP/HRS guidelines * In patients with symptomatic AF in whom antiarrhythmic drugs have been ineffective, contraindicated, not tolerated or not preferred, and continued rhythm control is desired, catheter ablation is useful to improve symptoms.(Class 1) * In selected patients (generally younger with few comorbidities) with symptomatic paroxysmal AF in whom rhythm control is desired, catheter ablation is useful as first-line therapy to improve symptoms and reduce progression to persistent AF. (Class 1) * In patients (other than younger with few comorbidities) with symptomatic paroxysmal or persistent AF who are being managed with a rhythm-control strategy, catheter ablation as first-line therapy can be useful to improve symptoms. (Class 2a) * In selected patients with asymptomatic or minimally symptomatic AF, catheter ablation may be useful for reducing progression of AF and its associated complications. (Class 2b) * In patients who present with a new diagno…