Here is the copy of heart monitor results and recommendation by a cardiologist:
Occasional premature atrial contractions and brief supraventricular runs, symptomatic.
Recommend avoidance of stimulants such as caffeine, alcohol, nicotine, decongestants, diet pills, energy drinks, etc.
I used to work out a few days a week for 30 - 45 minutes at a stretch with an elevated HR of 130 - 170 bpm, can I safely return to this routine? What triggered the holter requirement was an episode I had after a very intense 45 minute work out where my heart rate stayed elevated for about 20 minutes, I called 911 after 10 minutes and went into ER. I was released after blood work and ekg were normal. I'm a bit paranoid about getting on my bike again, working up a sweat and getting my heart rate up again.
Thank you for any comments re diagnosis and future exercise suggestions!!