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Limited distal repair results in low rates of distal events following surgery for acute type A aortic dissection
Seminars in Thoracic and Cardiovascular Surgery  (IF2.006),  Pub Date : 2021-11-10, DOI: 10.1053/j.semtcvs.2021.11.004
Raphaelle A. Chemtob, Jacob Ede, Erik Herou, Mårten Larsson, Shahab Nozohoor, Johan Sjögren, Per Wierup, Igor Zindovic

To investigate mortality and reoperation rates following limited distal repair after acute type A aortic dissection (ATAAD) at a single medium volume institution. We analyzed all patients that underwent limited distal repair (ascending aortic or hemiarch replacement) following ATAAD between January 1998 and April 2020 at our institution. During the study period, 489 patients underwent ATAAD surgery, of which 457 (94%) underwent limited distal repair with a 30-day mortality of 12.9%. Among 30-day survivors, late follow-up was 97.7% complete with a mean follow-up of 6.0 ± 5.5 years. years. In all, 50 patients (11%) required a reoperation during the study period at a mean of 3.4 ± 3.4 years after initial repair, with a 30-day mortality of 12%. An aortic reoperation was required in 4.1 (2.0-6.1)%, 10.3 (7.1-13.6)%, 15.1 (10.9-19.4)% and 18.0 (13.0-22.9)% of patients at 1, 5, 10 and 15 years. A distal reoperation was required in 3.0 (1.2-4.7)%, 8.0 (5.1-10.9)%, 10.3 (6.8-13.8)% and 12.4 (8.2-16.5)% of patients and 4.4 (2.3-6.4)%, 10.4 (7.1-13.7)%, 13.9 (9.8-18.0)% and 16.9 (12.0-21.9)% of patents had a distal event at 1, 5, 10 and 15 years, respectively. Limited distal repair with an ascending aortic or hemiarch replacement was associated with acceptable survival and rates of reoperations and distal events. Limited distal repair is a safe and feasible standard approach to ATAAD surgery at a medium-volume center.