Aortic dissection is a life-threatening yet infrequent diagnosis, estimated at about three cases in every 100,000 person years (1,2). Because of its low frequency and emergency nature, large randomized controlled trials are difficult to conduct (3). Thus, the International Registry of Acute Aortic Dissection (IRAD) was established in 1996 to obtain up-to-date data on patients with acute aortic dissection. Currently, 30 large referral centers in 11 countries participate. Most novel research on aortic dissection is based on IRAD data. […]