[Outcomes after Surgical Repair of Thoracoabdominal Aortic Aneurysm with Distal Aortic Dissection:DeBakey Type I versus Type III].

Objective To evaluate the early and mid-term results after surgical repair of thoracoabdominal aortic aneurysm(TAAA)in patients with DeBakey typeⅠor Ⅲ aortic dissection. Methods The clinical data of 130 patients who underwent TAAA repair for chronic DeBakey typeⅠ(groupⅠ, n=47)or type Ⅲ(group Ⅲ, n=83)aortic dissections in our center between January 2009 and December 2017 were retrospectively analyzed.Early postoperative results,midterm survival,and re-interventions were compared between these two groups. Results The 30-day mortality rate was 6.9%(n=9)in the overall cohort,with no statistic difference between groupⅠand group Ⅲ(10.6% vs. 4.8%;χ2=0.803, P=0.370).The incidence of major adverse events(38.3% vs. 51.8%;χ2=2.199, P=0.138),5-year actuarial survival rate [(81.7±5.9)% vs.(87.2±4.2)%;χ2=0.483, P=0.487],and 5-year actuarial freedom from all reinterventions [(84.5±6.7)% vs.(85.5±4.8)%;χ2=0.010, P=0.920] showed no significant differences between these two groups. Conclusions The early and mid-term outcomes after surgical repair of TAAA are similar for DeBakey typeⅠ and type Ⅲ patients.However,studies with larger sample sizes are still required.