Résumé
Background: Tipe A aortic dissection involves the ascending aorta and has high mortality rates without surgical treatment. Aim: To report the results of surgical treatment of type A aortic dissection. Material and Methods: Retrospective review of medical records of 100 patients aged 17 to 78 years (73 percent males) operated between January 2000 and August 2008, for type A aortic dissection. Follow up was performed with telephone interviews and review of national death records. Results: Eighty three percent of patients had an acute dissection. Operative mortality was 27 and 20 percent for patients with acute and chronic dissection, respectively. Mortality was 50 percent among patients aged 70 years or more, compared with 21 percent among their younger counterparts, The most common complication was bleeding that required a new surgical procedure in 18 percent of patients. Actuarial survival was 70 percent at five years. Cardiovascular problems caused the death of two of the nine patients that died during follow up. Conclusions: Surgical mortality among patients with type A aortic dissection was higher among patients with acute episodes and those aged 70 years or more.