@crbarefoot Hello everyone! My quick update:
I did meet with my cardiologist who also specializes in oncology (I have breast cancer). She reminds me that cancer itself is cardio-toxic meaning cancer and some of the treatments like chemotherapy can be tough on the heart. Since I already have pre-existing afib and am age 75, she reels me in when I suggest going off my Eliquis. I wanted to do this following my heart ablation in the fall of 2025. She, however, says NO and that I should remain on Eliquis.

Surprisingly, she did not assume one of her stern looks at me when I asked about taking MK-4. She said she does not know anything about it and I should send her a message about it on MyChart and she will forward it to the hospital pharmacy folks to see if they have an informed opinion

In the process of getting ready to send something to her. I fear it won't have enough solid research behind it, but will go with what I can quickly pull together.