The most common cause of arterial blockage is diet. Smoking
probably doesn't help, as some research suggests that it narrows the arteries. I don't know anything about how lyposuction would effect the arteries around the heart.
As far as writing out a will -- I think she is being a little dramatic. I've had multiple angiograms (basically the same procedure without the balloon) and a handful of angioplasty
procedures. (In my case it's a heart defect.) There is always some risk, but it's miniscule. (Less than 2 percent of people die during angioplasty.) More people probably die from falling in the bath tub.