To understand the clinical characteristics, treatment options and prognosis of aortic dissection or aneurysm in young people，the study plan will include young people younger (≤50 years) with aortic dissection or aneurysm from 2020.6. Then collect their clinical data and conduct follow-up studies, in order to understand younger aortic dissection or aneurysm patients.
Aortic dissection or aneurysm is unusual in young patients, and frequently associated with unusual presentations. However studies about this area is scarce. Besides, the treatment option is not clare. The prognosis of this cohort is also unclear.~The goal of this study was to better understand the characters, treatment option and prognosis of young patient with aortic dissection or aneurysm.