A friend had an abdominal aorta aneurysm that sounded scary till I read up on it. They watch his type and location of aneurysm till it bulges to a clinically-significant degree, so he lived with it for years. When it got bad they went in there promptly (not as an emergency, but soonly) with a stent to strengthen the blood vessel's wall and seal off the bulge in one swell foop. He did fine once he healed up-- much as m/m describes. So I would say do your research, and then decide if you trust the docs.