Safety and Efficacy Study of The Combined Ablation Procedure To Treat Longstanding Persistent Atrial Fibrillation

Inclusion Criteria: * Age \> 18 years; \< 80 years * Left atrium less than or equal to 6.5 cm (TTE) * History of AF for less than or equal to 10 years * Provided written informed consent * Symptomatic longstanding persistent Atrial Fibrillation (AF). Exclusion Criteria: * Patients requiring concomitant surgery * Left ventricular ejection fraction \< 30% * Pregnant or planning to become pregnant during study * Co-morbid medical conditions that limit one year life expectancy * Measured left ventricular wall thickness \> 1.5 cm * History of coagulopathy * Previous cardiac surgery * History of pericarditis * Previous cerebrovascular accident (CVA), excluding fully resolved TIA * Patients who have active infection or sepsis * Patients who have uncorrected reversible cause(s) of AF * Patients who are contraindicated for anticoagulants * Patients who are being treated for arrhythmias other than AF * Patients who have had any previous AF or left atrial catheter ablation * Current participation in another clinical investigation of a medical device or a drug, or recent participation in such a study within 30 days prior to study enrollment * Not competent to legally represent him or herself (e.g., requires a guardian or caretaker as a legal representative).