Aortic dissection, aortic aneurysm - The aorta - Life after an aortic dissection
I'm so sorry for the news of your brother. Did they do genetic testing? If they haven't, I would push for it now that another family member is involved. Usually(not always) when it effects more than one family member it is caused by a genetic disorder.
Now the reason for the wait is very simple, the wait until the risk of the dissection is greater than the risk of surgery. This true for many things. My ascending dissection was repaired right away, then I developed an aneurysm in my aortic root a couple months later. Waiting 8 1/2 long time bomb years waiting to get that repaired.
I hope this helps a little,
Good luck Judy
AD has a long history of family genetic predisposition. Kimberly is correct re the risk waiting versus surgery. But always remember AD is not a death sentence! Nowadays the surgery techniques and diagnosis have improved out of sight since my waltz with the AD dark side in April 2003! And I'm still going strong! Tell your bro to think positive - it will be ok!