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Objective: Reoperation after aortic root replacement (ARR) is associated with increased operative risk and complexity. This study evaluated clinical outcomes and reoperation rates in patients undergoing ARR. Methods: From 2004 to 2021, 2700 adult patients underwent an ARR in a 2-institution database. Among 2542 surviving patients, 705 patients who had a history of previous cardiac surgery as well as 11 patients who underwent transcatheter aortic valve replacement after index ARR were excluded. Among the finalized cohort of 1826 patients, 88 (4.8%) underwent a reoperation (REDO) on the aortic valve or proximal aorta (root/ascending) a mean of 3.1 years after index ARR whereas 1738 (95%) did not undergo reoperation (no-REDO). A subgroup analysis was performed among those undergoing reoperation by indication including valve dysfunction (48%), endocarditis/graft infection (33%), and aortic aneurysm/dissection/rupture (12%). Reoperative indication was unknown in 6 patients (7%). Results: The REDO group was younger at time of index ARR (52 vs 58 years, P

Objective: The impact of previous aortic root replacement (True-Redo) versus any previous operation (Any-Redo) on outcomes after reoperative aortic root replacement (redo-ROOT) is largely unknown. In this first multi-institutional study, the clinical impact True-Redo versus Any-Redo in the setting of redo-ROOT was reviewed. Methods: From 2004 to 2021, 822 patients underwent redo-ROOT at 2 major academic centers: 638 Any-Redo and 184 True-Redo. Matching based on preoperative demographics and concomitant operations resulted in 174 matched pairs. An independent risk factor analysis was performed to determine risk factors for early and late mortality. Results: Patients in the True-Redo group were younger, at 49.9 ± 15.1 versus 55.3 ± 14.7 years, P .05. Median cardiopulmonary bypass time (P