Apple Watch re: SVT, mainly PSVT, of the AVNRT variety

I am a 76 year old male.

I've had PSVT for 30 years. (Rapid heart rate over 140 bpm for minutes or hours.)

Every cardiologist I have seen says, "benign.... "
and further, " we can prescribe medication or surgical ablation to 95% control it if you can't control it yourself."

For many years I just endured the SVT high bpm until I learned the valsalva maneuver.

As an engineer who loves research, I have kept good records for all those years. My SVT occurred once a month or so for many years but has recently changed to once or twice a day in 2024.

I wear a Polar H9 chest strap plus a Garmin Vivosmart 4 almost all the time, even sleeping. My app software is "Heart Graph" app by Smoky Cat Software, (Android and Apple, no subscription needed and no ads, this app is the best and I tried about 30 others..) plus Garmin Connect app, plus Apple Health app. I was once prescribed the medical DME "holter" device to wear for a 7 day period last year.

I share my amateur graphs with my doctors and would be happy to share them here if allowed. The typical SVT graph would show a normal 72 bpm base rate, then a skyrocket shoot up to 140 bpm or higher, then I perform my vagus nerve valsalva maneuver and the result is a trigger of a very rapid decline back down to 72 bpm or so. The graph clearly shows a maximum of usually 2 minutes at the max rate, so my valsalva maneuver works well.

In my early years, before learning about the vagus nerve, I would log up to two hours at the high rate.

Thank you dear reader, for I am finally getting to my question.

It is my non-expert opinion that each person only gets so many millions of heart beats. So, if I can stop my SVT quickly, I win. But, last night my uncomfortable Polar H9 chest strap dislodged and I lost monitoring and I missed a 45 minute SVT episode at 1230am. I never awoke. Normally the linked alarm on my smart phone would have wakened me immediately. This morning my Garmin app showed me when the SVT occurred while sleeping. ( I use the H9 with the Smoky Cat app to wake me.)

Finally, my question:
I want to know if anyone has a Series 9 Apple Watch with blood oxygen monitor feature to record their SVT and how well it works for you? I think that device will allow me to get rid of the chest strap and also be more accurate.

Plus, I will try to get my Medicare Advantage health insurance pay for it as a DME, durable medical device.

So, two questions:

1. Apple Series 9 watch for SVT monitor?
2. Insurance covered Apple watch as DME?