Just had dental surgery a few days ago. What you say sounds like a serious and important issue. I would just have some long extended conversations with your cardiologist. And ask him if he thinks that he should directly consult with your oral surgeon.
And do the same with the oral surgeon...ask him if he would like to consult with your cardiologist.
You have to understand, that in modern medicine, everyone is going fast. Too fast. They don't review individual cases enough.
So, it is always important to give them some reminders about the serious issues at play.
Then, they will take notice, pause, stop...and actually do the research and give you safe care.
But, if you don't do that, they may not look at your chart clearly enough...and give you poor care.
5 years ago, my wife's doctor gave her the wrong medication, that she was allergic to, even though it was right on her chart.
Nearly killed her. And her health has been poor since.
So, don't take anything for granted...go over the issues again and again with your cardiologist and oral surgeon.
If you do all that, I am sure you will be just fine.
take care