Abstract
Background: Prosthetic valve endocarditis, the most severe form of infective endocarditis, occurs in 1-6% of patients with valve prostheses and is still associated with poor prognosis and high in-hospital mortality.Objective: To assess outcomes of allograft aortic root replacement in patients with prosthetic valve endocarditis.Methods: The retrospective analysis included adult patients with prosthetic valve endocarditis, who underwent allograft aortic root replacement between 2011 and 2022.Results: Of 15 study patients, early infective endocarditis was found in 60.0% of the cases. The most common cause was Staphylococcus aureus (26.7%). Early mortality was 13.3%. Thromboembolic events occurred in 2 patients (13.3%). The median follow-up period was 48.5 (6-140) months. Late death was reported in 1 patient. The 5-year survival rate was 79.0%. One patient had recurrent infective endocarditis. Two patients underwent reintervention: one for a proximal anastomotic pseudoaneurysm and another one for structural degeneration of the allograft. Five-year freedom from reintervention was 91.7%.Conclusion: Due to the high rate of the freedom from recurrent infective endocarditis, allograft aortic root replacement is an effective treatment for patients with prosthetic valve endocarditis. Received 7 November 2022. Revised 9 December 2022. Accepted 20 December 2022. Funding: The study was supported by the grant of the president of the Russian Federation (No. 075-15-2022-823). Conflict of interest: The authors declare no conflict of interest. Contribution of the authorsConception and study design: A.V. Bogachev-ProkophievData collection and analysis: A.V. Karadzha, A.N. Pivkin, A.S. ZalesovStatistical analysis: R.M. Sharifulin, A.V. AfanasyevDrafting the article: R.M. Sharifulin, A.V. AfanasyevCritical revision of the article: A.V. Bogachev-Prokophiev, S.I. ZheleznevFinal approval of the version to be published: A.V. Bogachev-Prokophiev, R.M. Sharifulin, S.I. Zheleznev, A.V. Karadzha, A.V. Afanasyev, A.N. Pivkin, A.S. Zalesov
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