Hello @md5150, I would like to add my welcome along with @artic22. Here is some information from Mayo Clinic that might be helpful:

"Can heart blockage cause irregular heartbeat? Things that can cause an irregular heartbeat (arrhythmia) include: Current heart attack or scarring from a previous heart attack. Blocked arteries in the heart (coronary artery disease) Changes to the heart's structure, such as from cardiomyopathy." --- Heart arrhythmia - Symptoms and causes - Mayo Clinic: https://www.mayoclinic.org/diseases-conditions/heart-arrhythmia/symptoms-causes/syc-20350668.

@thankful may also have some experience to share with you.