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20% PVCs, any relation to dilated ICV without collapse? Or OSA maybe?

Hi there, I've been stalking this forum and others for awhile and finally need to see if anyone can give me some insight on my ol' ticker.

I am a very healthy 46 yo guy (with no family history of bad hearts, normal BP) that developed PVCs about three years ago. On January 1 this year, they became continuous, usually bigeminy when near a resting heart rate.
My Holter showed 20% of a normal work day was irregular so 20-25,000 per day. I am on 50mg of beta blocker and going up to 75 but my resting hr is already 60-...

So my question is this, I had a second echo in Feb which showed a dilated IVC without collapse during respiration. I had an echo done in 2014 which did not comment on my IVC size (different Dr).  The echo I had done in 2014 had an estimated RA pressure of <5mmHg (normal), this echo from Feb says RAP of 10mmHg, I don't think that is crazy high (?), I'm not a trained athlete but I am semi-athletic and do exercise regularly. My wife says I've had bad sleep apnea for 25 years, I've never been to a Dr for that.

My current Dr is not concerned, but I only got these results after I saw him last so I have not gone over them with him. We have primarily been focused on my PVCs and trying to get them under control.

Other echo tid-bits: right to left atrium shunt (PFO), mitral valve thickening with trace-mild regurg (also curious if anyone has insight on the thickening), tricuspid pulmonic also have trace regurg. Other than that I think everything is pretty normal.

If you have any insights or questions I can take back to my Dr, I'd appreciate it.
​​​​​​​-C
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