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Heart & Cardiology/Slow heart missed beats very fit


I'm about 50.  Very fit cyclist.  Resting pulse has always been slow - generally 42 to 48 when training.  Can maintain 150 for an hour and do not feel tired or dizzy.  For the last couple of months I've noticed lots of missing beats, randomly, when not exercising.  So there might be 3 beats a miss, a big beat, then 20 or 40 or 80 beats then a missed one, the next one big - and so on.  There is no pain - I only know of a missed beat by feeling my pulse.

I've had basic blood tests and a short ECG - all clear.  

I don't smoke or drink. Is this all OK or should I seek further investigation?

Hi Dave,
It is a judgment call whether more needs to be done, the only way to confirm an abnormal heart rhythm is with long term monitoring if the EKG was negative:
Hope this helps,
Dr T

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