Question: are pacs a precursor to afib?
Answer: However, studies indicate that PACs often precede or forewarn of an A-Fib attack. A-Fibbers seem to have more problems with these extra beats than normal people. An important study from Dr. Boon-Hor Chong and others from China shows that frequent PACs (more than 100 beats/day) actually predict who will develop A-Fib.