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Heart Rhythm  (Expert Forum)
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Excercise Induced Tachycardia
Answered by
Michael J. McWilliams, M.D. - atrial fibrillation, Pacemakers, Defibrillators, Arrhythmias (SVT, VT), PVC/PAC, Ablation
Wilmington Health Associates Wilmington - NC
Questions in the Heart Rhythm forum are answered by Dr. Michael J. McWilliams. Topics covered include heart rhythm issues, arrhythmia, irregular heartbeat, implanted defibrillators, pacemakers, and tachycardia.

Excercise Induced Tachycardia

by LAF58, Jan 15, 2008 08:53AM
I posted this on the general forum inadvertently (I'm new to the site and see that I also posted it multiple time.......)

I am almost 50 and exercise (cycle, run, ride horses) regularly (3-5 times per week).  Several years ago, my husband gave me a heart monitor for my birthday.  At that time, I noticed that my heart rate during exercise would peak between 220 and 230.  I recovered to below 100 within 15 minutes after exercise.  Since I'd never checked my heart rate before, this could have been the situation my entire life.  At that time,  I went to a specialist, had an EKG, took a stress test on a treadmill - my heart was considered healthy.

Recently I started wearing the heart monitor again and have noticed the same situation.  During my cycling class yesterday, my heart rate climbed to 238.  Again within 15 minutes after exercising, it was below 100.  Should I be concerned or schedule an appointment with the specialist again?  For 15 years I have been taking synthroid for hypothyroidism and birth control to maintain my hormone levels due to premenopausal failure.  I do not have any dizziness, fatigue, etc.

by Michael J. McWilliams, M.D., Jan 15, 2008 09:33PM
I can answer the hypothetical question by saying that if I had a patient that I had worked up for problem "x" and the work up was negative.  If they started experiencing the same issue again and it was still asymptomatic, I would not repeat the work up.

I can't comment on your situation because I personally didn't review the results, but that it how I would handle it if I had done the initial work up and I was comfortable with the results.

I hope this helps.
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