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  • Title: Cryopreserved aortic homografts for complex aortic valve or root endocarditis: a 28-year experience.
    Author: Galeone A, Trojan D, Gardellini J, di Gaetano R, Faggian G, Luciani GB.
    Journal: Eur J Cardiothorac Surg; 2022 Aug 03; 62(3):. PubMed ID: 35388890.
    Abstract:
    OBJECTIVES: The aim of this study was to evaluate early- and long-term outcomes of cryopreserved aortic homograft (CAH) implantation for aortic valve replacement (AVR) or aortic root replacement (ARR) in patients with or without complex infective endocarditis. METHODS: All adult patients undergoing AVR or ARR with CAH at our institution between January 1993 and July 2021 were included in the study. RESULTS: One hundred four patients, 75 males and 29 females, aged 59 ± 17 years, underwent AVR or ARR with CAH for infective endocarditis (n = 94, 90%) or aortic valve disease (n = 10, 10%). There were 33 (35%) native valve endocarditis and 61 (65%) prosthetic valve endocarditis, which were complicated by annular abscess in 77 (82%) patients, mitral valve endocarditis in 13 (14%) and tricuspid valve endocarditis in 13 (14%). The mean cardiopulmonary bypass time was 214 ± 80 min and the mean aortic cross-clamping time was 164 ± 56 min. There were 12 (12%) hospital deaths and 7 (7%) postoperative low cardiac output syndrome requiring extracorporeal membrane oxygenation in 4 patients and intra-aortic balloon pump in 3. Thirty-nine (42%) patients died during the follow-up (94% complete). The mean survival time was 13.9 ± 1.2 years. Twenty-five patients (26%) underwent late reoperation for aortic homograft degeneration (n = 17, 18%), homograft endocarditis (n = 6, 7%), homograft dehiscence (n = 1, 1%) and mitral valve regurgitation (n = 1, 1%). The mean survival free from reintervention was 15.7 ± 1.2 years. CONCLUSIONS: AVR or ARR with a CAH for complex endocarditis is associated with satisfactory hospital survival, considering the critical patient presentation at surgery, and excellent survival free from recurrent infection. Need for reoperation late after surgery is similar to other biological prostheses.
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