<prompt> Answer this question truthfullyWhat does aortic dissection surgery entail?  <response>: <reason> Dissections involving only the descending aorta can generally be managed medically, but indications for surgery include the following:Progression of the dissection Continued hemorrhage into the pleural or retroperitoneal spaceEven acute MI in the setting of dissection is not a surgical contraindication. Acute hemorrhagic stroke is, however, a relative contraindication, due to the necessity of intraoperative heparinization. 