It was an easy procedure. They kept me overnight afterward. Manufacturer reps are present in the operating room and help with adjustments. As I was in recovery my heart felt like it was trying to jump out of my chest. The technicians used a computer to adjust things and that went away. It happened again later in the hospital room and they repeated the computer adjustment. That has never happened since. I believe it is a fairly routine event having to do with the frequency of the pacemaker and a particular nerve it excites. Have the device for nearly a year now and don’t think much about it. Going for bloodwork every 2 weeks to check Warfarin level, and dealing with the dietary restrictions regarding that is more on my mind.