The Watchman is a device that the insert into the heart and it blocks off the appendage in the left atrial. When you are in Afib and the left atrial is beating out of rhythm with the ventricle this appendage is where blood clots may form. The Watchman is not really designed to end AF, but to remove the need for an anticoagulant like Eliquis. The ablation procedure is used to end Afib. There are some doctors that will perform the ablation procedure and install the Watchman at the same time. I had the pulse filed ablation procedure, but my doctor is not completely sold on the Watchman and suggested that it not be installed at this time.