glad you caught it in time !
my old man had several bypasses, and my wife has a couple of stents.
not the type of things that are a walk in the park for some, but have been done enough by now that with the best surgeon you can acquire, will be a relatively safe and reliable way to get a person up and going again.
i am lucky, as we live within 20 miles of a very good heart hospital that is getting better all the time.
it used to be the closest was pittsburgh, or cleveland.
i am sending thoughts, prayers, and well wishes to you for a speedy recovery !