2468TOCHII M et al.
Circulation JournalOfficial Journal of the Japanese Circulation Society http://www. j-circ.or.jp therapy. 9 Thus, the effect of age alone on emergency surgery for AAD is not entirely understood. Furthermore, the longterm outcome of surgery for AAD in octogenarians remains uncertain. Therefore, we reviewed the surgical outcomes to investigate and compare the validity of surgery for AAD in octogenarians and younger patients.
Methods
Study PatientsWe reviewed our surgical outcomes for patients who underwent surgical treatment for AAD via a median sternotomy at the Department of Cardiovascular Surgery, Fujita Health University, Toyoake, Japan, from 2005 to 2015. According to the Japanese guidelines for aortic dissection, 16 surgery performed within 14 days after the onset of dissection was defined as the acute phase, whereas surgery performed within 48 h was defined as the very acute phase. We retrospectively reviewed clinical records and data on patient demographics, results of imaging studies, details of medical and surgical treatments, and patients' outcomes. We he increasing life expectancy of the population will be accompanied by a rise in the incidence of cardiovascular diseases, including aortic dissection and aneurysm. 1 Because the Stanford type A aortic dissection (AAD) extending to the ascending aorta is a condition that has an extremely poor prognosis, 2 immediate surgical intervention is indicated once it has been diagnosed. The current AAD hospital mortality rates remain between 15% and 30%, 3-8 despite gradual improvement over time. Increased age is a strong independent predictor of hospital death following cardiovascular interventions, including the surgical repair of AAD. 7,9,10 Surgery for octogenarians with AAD may be avoided or denied because of the high surgical morbidity and mortality reported in elderly patients. A recent meta-analysis of 10 publications from 2001 to 2011 showed an overall mortality rate of 36.7% (111/308) in octogenarians, a 2.6-fold higher mortality risk than that in younger patients. 11 In contrast, some reports have demonstrated satisfactory surgical outcomes of AAD in octogenarians. 12-15 A recent report also demonstrated that although the number of surgical deaths significantly increased with increased age, it was still better than that with non-surgical Background: Because increased age is a strong independent predictor of mortality and morbidity, surgery for octogenarians with Stanford type A aortic dissection (AAD) may be avoided.