Peeps above have given great info so will not repeat. We had a cardiothoracic surgeon and a vascular surgeon who handled my husband's second surgery. The first was an emergency and we just had the cardiothoracic surgeon. They did two procedures 2 days apart for the second. The OH to repair aortic arch a little more, the vascular surgeon did a tevar procedure through a vein in the groin area to open the thoracic region for better blood flow, alleviating pressure on the natural artery that the false lumen was pushing on. Both discharged us and sent us to a specialist in NC who had more recurrent experience with dissections, stent design, and these types of surgeries, in case of future Endo leaks caused by the stents, which they say are common. I am sad to say we are checked every 6 months since our stents were recalled by the FDA for causing lots of Endo leaks. He just left NC so we are going to have to start over finding the specialist in this area. Key point I guess I am not making, is when the aneurysm gets in the range for doing surgery, find the person who does the surgery weekly and not two or three times a year. (This came from our doctors, because these surgeries are complex, require expert skill and ability to pivot quickly to prevent new issues in your body)