DeBakey versus Stanford classification of aortic dissection. For Stanford, Type A requires surgical repair although Type B can be managed through medical therapy as Type B has a higher risk of operative mortality.
Mine was always treated like it was caused by ethanol. Even since I was But I never drank. It was idiopathic. It was Sphincter of Oddi Disorder. Was not fixed until my Pancreatitis Mnemonic : Causes, Severity