Objective: To describe the relationship between extent of repair and late reoperations on the aorta and aortic valve after type A aortic dissection. Methods: Retrospective cohort study of 30-day survivors (n=954) treated for type A aortic dissection at eight Nordic cardiothoracic centers between 2005-2014. Data was gathered from patient records and national registries. Late reoperations were available for 795 patients and they were divided into 3 groups according to distal anastomoses (ascending aorta, n=577, hemiarch, n=180, and total arch, n=38) and 2 groups for proximal repair (aortic root replacement, n=175 and supracoronary repair, n=620). Results: The mean follow-up was 3.7 ± 2.8 years. There were 25 reoperations on the proximal aorta and 30 on the distal aorta in 49 patients. Freedom from any reoperation at 5 years was 93.5%. Freedom from distal reoperation at 5 years was 95.9%, with no significant difference between groups (p=0.11) or DeBakey classifications (p=0.415, figure 1.). Freedom from proximal reoperation at 5 years was 97.6%, also with no difference between groups (p=0.92). On Cox regression neither DeBakey classification nor the extent of proximal or distal repair predict freedom from reoperation. Conclusions: In 30-day survivors surgically treated for acute type A aortic dissection, 5-year freedom from reoperation did not differ significantly irrespective of the initial extent of repair. This suggests that non-extensive repair at initial presentation is sufficient in most cases to ensure freedom from reintervention. However, longerterm or prospective data using stadardized protocols is required to confirm our findings.