Thread: uncomfortable flutter in my heart beat

They are most likely PAC's and PVC's. I've had them for years on and off, Go see a Cardiologist to make sure they're not harmful .

I found that caffeine is a Culprit to mine being more active. Cut the caffeine in half for a week and see if that doesn't slow them down and or make them go away all together.


Premature atrial contractions (PAC's)

PAC's are beats which originate in parts of the atrium other than the sinus node. These impulses occur prematurely, before the sinus node depolarizes. They are conducted through the atrium and slow down, just like a normal sinus beat, when they reach the A-V node. They are conducted through the ventricle in the same fashion as a normal sinus beat.

These are very common, and can be completely unknown to the person, or perceived as a "skip" or a "pause". They may be caused by many of the same conditions as noted for sinus tachycardia above, and are not necessarily an indication of any disease at all. Follow the general measures for palpitations. Treatment with beta-blockers, calcium-channel blockers or other agents can be useful.

Premature ventricular contractions (PVC's)

These are also extremely common. These arise in the lower chambers of the heart, and are associated with many of the same causes as PAC's and sinus tachycardia. They are sometimes viewed with more concern, since multiple consecutive PVC's (ventricular tachycardia) can be associated with serious heart problems and sudden death. However, the vast majority are benign, and do not require treatment. Further testing may be warranted.


I See my Cardio twice a Year, they check by Echo and Electra cardiograms. Mine so far are not damaging. Just irritating, so I cut down my coffee intake for a few days and they go away.

But See a DR. so you will know what is going on for sure.