My cardiologist told me that the PVCs would probably get worse after surgery, because many times the insertion
of a foreign object (i.e., my mechanical valve) fouls up the heart's electrical system even more. To the contrary, my PVCs completely went away after surgery!
In 2002, I moved to a new location, and my new cardiologist started me out with an ECG. He detected light, occasional PVCs, of which I could feel no effect.