@tekkie50 Depends on the EP's experience with PFA and with what he/she finds needs that application of the appliance's energy. Most EPs will only try a PVI* first, especially for paroxysmal AF patients. As your stages evolve over time, and if you get more walls affected by the reentrants where the signals emerge into the endothelial lining of the left atrium, the EP will have to spend more time finding them and then zapping them to stop their intrusions. So, the answer is, it depends.

PVI = Pulmonary Vein Isolation