My dad had quad-heart bypass surgery, is it common to experience irregular heart beat a few days after surgery? is this bad? what % of ppl get this?

YES: Almost every patient has some heart beat irregularity after coronary artery bypass surgery! THAT'S why they MONITOR them! Hope this is helpful Dr Z

Common.: common to have isolated early beats. if has continual bursts of fast or irregular beats or a lot if single irregular beats, needs to have this evaluated, as this may represent a rhythm problem.