RecruitingDevice studyCellFX® Nanosecond Pulsed Field Ablation (nsPFA)™ Cardiac Surgery Clamp System to Treat Atrial FibrillationThe primary objective of this Pivotal study is to demonstrate the safety and effectiveness of the Pulse Biosciences nsPFA™ Cardiac Surgery System in treating atrial fibrillation during concomitant cardiac surgical procedures.