If your aorta is dilated and is continuing to dilate, or if you strongly suspect Marfan Syndrome, please do some Google research on a class of drugs called ARBs, such as
losartan. These drugs have shown immense benefit to patients with aortic disease. The huge majority of patients thus far have shown healed aortas with drastically reduced incidences of dissection, decrease in aortic root size, stability in aortic root size, increased aortic flexibility, etc.