bradycardia - as relates to THC

Of course everyone has a different reaction, but I would be more concerned about it lowering my BP too much.
There’s also the correlation between the heart and lungs. I don’t ever remember hearing of anyone getting lung cancer from it, but your heart might not approve of something like it.
I’ve discussed it with my cardiologists and EP’s and they’ve been positive about it, just not for recreational purposes.
I believe it has a place in the field if used correctly. It carries a worn out stigma that needs to be replaced with something that isn’t derived by fear.
Be honest with your physician and see how they feel about it.
Hopefully they can give you some good advice and help you make the right decision.

It's just the first hit listed when I googled the question, and it's only one study. Still.......
https://www.escardio.org/The-ESC/Press-Office/Press-releases/People-with-heart-rhythm-disorders-warned-over-cannabis-use