I need the help of all the techies out there to help me understand what I just did.
Last Friday my EP turned off the Rate Response (acclerometer) in m St. Jude Dual Chamber device. Since its implantation, I have never felt whole or even close -- labored breathing, tiredness etc. Almost immediately, I felt better, and I'm into my 5th day.
Even though I didn't have the condition for which a rate response was needed, the EP said turning it off would not improve my condition. But it did. Amazingly! Now I wonder if the sudden and strange appearance of VTs over the past six weeks (after 15 months of feeling terrible) were the result of the RR being on when it should have been off. I've read about RR sensitivities being the culprit in pacemaker mediated tachycardias (PMT).
Since I didn't have the "rate imcompenence" for which the rate response was made, how would it create PMT in me? I understand the direction and evolution of the native cardiac electrical current. I get the concept of unwanted retrograde currents created by a PM. But I cant understand how RR could possibly create PMT. But it can, according to what I have read.