@jdssunflower Hi, you should consult with a very experienced surgeon, I’ve read that in certain cases depending on the anatomy, exact location, health of the patient, etc a TEVAR could be used or a hybrid process that may be easier on high risk patients, but the options are specific to each patient. An experienced cardiothoracic team in a major hospital should be able to assess your options

@jdssunflower
The arch has ar least 3 main arteries branching off of it. That makes it unlikely for TEVAR unlikely at present. The descending aorta and abdominal aorta are possible.