Automatic threshold tests leadless MICRA PM
Since having my leadless PM put in in July. It is set to 40BPM and it seems it hasn't had to pace me yet. I got it after a 13 second heart pause out of the blue (I had a loop recorder). I've had serious palpitations every 30-60 minutes since the PM op. I was taken to hospital recently whilst travelling as my heart had started racing (still unclear what that episode was as the loop recorder was taken out). But, while I was there I asked the technician about the palpitations, she did a little test whilst interrogating the PM and said that I was sensitive to the automatic threshold tests that the PM does. She said this cant be turned off as it wouldn't be safe! Something along the lines of "it needs to threshold test to know how much power will be needed".
I went for my first PM check a few weeks after that incident to my local hospital, armed with the information the other technician had given me about the automatic threshold tests. I mentioned the palpitations and the technicians there didn't suggest that it could be the automatic threshold tests. That kind of concerned me about their knowledge. I then told them that I was aware of that from the other technician and they then agreed to check this, they did the test and agreed that I'm feeling these threshold tests. They said they can turn the automatic threshold testing off and said it was safe. They said all pacemakers operated without automatic threshold testing in the past?
I agreed as the palpitations were bordering on painful and at least every hour without fail I was getting them. I'm no longer getting frequent palpitation like before so it was definitely sensitivity to the automatic threshold testing. (I have been getting some episodes of palpitations but I'm sure these are from missed beats as I've been checking my pulse in my neck and feel complete missed beats?) That's a separate issue I'm worried about.
I feel really concerned about the total differences in opinion of the PM technicians and couldn't find any info on the internet about this.
Does anyone have any idea about this?
Thanks so much :)