I can't be for sure I can remember having a 200 beat per min. on and off about 10 yrs ago and my BP monitor would have the afib heart with slash but when I would go to Dr. everything was good. I did not have constant AFIB until 4 yrs ago when I had a UTI that went sepsis and I went to ER thinking I was having heart attack when Dr found sepsis as well as AFIB so hospitalized for both. It was under control with a few flair ups a year but amiodarone always regulated my heart and I would stop the medication... I always thought it was a stress ful situation that set it off. This last time my cardiologist sent me to EP who decided I needed ablation. As I write this I am back into Normal Sinus for first time in 14 days. I am thrilled to death. I know I'm in blanking phase so I am so hopeful this holds