HELP! Severe high tachy between 160bpm-202

[shellbells]

Hello,
I have been dealt with SVT for 15 years. About 10 years ago I had my heart shocked in the ER. I was told that I went Into VT & a-fib /a/flutter. The last 9 years I've been doing ok just taking metoprolol xl daily. I've always had a pretty decent heart rate. When I calm it's 80-100, when I'm busy walking, working, etc.. Closer 90-115. However in May of this year I had a severe attack and called 911. I took my medicine quickly and waited impatiently .when they arrived I was at 150bpm. Which at the point I felt calm. Well since then I have had 4 more attacks. None of which I have been able to get on a EKG . With my highest reading on my own machine at 202. Again I called. 911 but it wasn't as high. They seem to only last 3-10 minutes. Yesterday I had a EP study done. The doctor said I was fine and he tried to trigger my attacks.   But nothing.  Today I went back to my normal cardiologist and he is now placing a Implanted recording device. What could this possibly be if the EP study showed no svt ,vt,a flutter ??? It really does go up super high. To the point that I get lightheaded.but I have no way to prove it on every heart machine Invented.  Please any advice will help

[rajiv0207]

placing a Implanted recording device will help

[MichelleP_3811]

A rate of 200 could indicate an accessory pathway svt and they likely want to try and catch it to possibly see where it is originating.  Though I am not sure why they have to do an implanted one and not just a 30 day loop recorder but maybe they can get more info on location with the implanted one.  You might want to ask the wisdom of using an implanted device.  I suspect they hope it is something as simple as accessory pathway svt, which is much easier to fix, then afib or vt is.  You obviously have some sort of tachycardia issue going on.  If they can't induce it in the ep study, possibly because you were too sedated or they simply could not find the spot then it sometimes becomes a waiting game until the condition becomes more persistent.  I had avnrt my whole life but most of the time the episodes were very short.  It wasn't until I reached my 40s then the episodes started to become frequent enough for me to get it corrected.  Do you notice that your episodes start and stop in one beat?  In any event, best of luck getting this under control and corrected.  Please keep us posted on how it is going.