IST after 2 ablations?

[Eve2317]

Hello and thank you for taking my question. I have had two ablations, first one in '04, and second in '06 for "true ectopic atrial tachycardia"-I was told that this type of SVT is quite rare-only 5% of SVT are this kind. Ever since the last ablation 3 years ago I have been dealing with an elevated heart rate. I just finished wearing an event monitor and it showed my heart rate to run 95-140 while resting. It rises quickly with any activity. I believe that it was a sinus rhythm throughout except for one run of a 4 beat V-Tach. My GP and cardiologist have beem concerned with the heart rate over the past 3 years, but the EP that performed the ablations said it was o.k. (he still needs to review the event results). My cardiologist and several of his colleagues say it is not o.k., and if the EP still feels it's fine, they want me to go to a new EP because I may need another ablation. My questions are 1) is having this elevated heart rate o.k., 2) could this be IST? (thyroid is fine and pheocromocytoma (sp?) is neg)  3) could this be a new arrhythmia? 4) does this really require follow up, or are they just overreacting? Thank you!

[Eve2317]

I have tried BB but too many side effects, and I am currently taking cardizem CD 180 mg (CCB). Typically my resting heart rate is between 95-110, but often just increases to 120's 140's. Oh, and I am a 40y.o female.

[Jerry_NJ]

From what I understand a HR as high as 140 at rest should be treated.  I am not saying it means another ablation.  Has a beta blocker been tried to lower you HR?  What is your normal resting HR?

I take Metoprolol to lower my high HR driven by my AFib condition.  It brings my resting HR drown from 130 to about 85.  I have few side effects with the BB medication, it too several months to adjust, I note.