I had an ablation in 2003 when I was ten. All of my symptoms were gone and I didn't have any problems or "events" until I was 18. I got it checked out and my cardiologist said it was normal and my symptoms went away for a while. Now I'm 20 and my symptoms are back and getting worse. I have episodes where my resting heart rate will be anywhere from -120 beats per minute out of nowhere. Did my ablation not work? Can you outgrow it and need the procedure done again?
From what i have read the younger you are when you have an ablation the greater your odds of it reoccuring because a younger heart has the ability to heal itself better than an older heart. That said, a rate of 120 does not sound like svt to me. Especially at your young age. My avnrt presented at a rate in the 200s and WPW can be that fast or at least 150 plus. That said, if you are beginning to regrow the accessory pathway it is possible the slow rate is simply due to the fact that the pathway isn't fully restored yet. In any event, I would go and get checked out by your cardiologist so they can see exactly what is going on and if it is of any concern or not. If your svt is coming back you may simply need a second ablation and you should be fine again. But again, a 120 beat could actually be caused by other factors outside the heart like thyroid issues, dehydration or electrolyte imbalances so it is best to go and get checked out by a doctor to see exactly what is going on. Good luck and do keep us posted on how you are doing.
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