I'm not sure it ever becomes inoperable. I think inoperability is usually in cases where the patient is too old for major surgery.
Julie , at 55mm occluded you are supposed to have surgery. How many mm is your
aortic aneurysm now. If you don't know get an un -invasive Echo of your stomach and heart and aorta. God Bless you . I have the same thing and mine was at 47mm a year ago I'm going in for anothey echo this month. They wanted
me to come in in may.John Ritter from "Three's a company" had a complete physical the week before he died on the set when his aortic aneurysm burst..
You have less that a minute to live if it burst. They say sometimes you have chest pains before BUT not all the time.