Your doctor apparently believes you are in good physical shape and the open heart surgery is the best option for you. There is the TEVAR procedure done mostly for descending aortic aneurysms and not the best choice for an ascending aneurysm except when the patient is not able to tolerate the preferred surgery. If you are not convinced that such surgery is necessary, get a second opinion. Also worthwhile asking your cardio how many of these he has done.

I wish you good luck.

Donna