Background Aortic dissection(AD) is a life-threatening vascular disease caused by various etiologies including Marfan’s syndrome. Angiotensin receptor blocker(ARB) drugs have been confirmed beneficial for patients with Marfanoid AD but remain unclear for non-Marfanoid case. Methods Patients with DeBakey type Ⅲ,Standford A aortic dissection were consecutively recruited to Guangdong Provincial People’s Hospital and Jieyang People’s Hospital between January 2010 and January 2015, with 25 individuals in the ARB group and 32 individuals in t...