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  • Title: Surgical outcomes of mitral valve replacement with concomitant mitral annular reconstruction.
    Author: Kim SW, Jeong DS, Sung K, Kim WS, Lee YT, Park PW.
    Journal: J Card Surg; 2018 Feb; 33(2):69-75. PubMed ID: 29464789.
    Abstract:
    BACKGROUND AND AIM OF THE STUDY: We evaluated the early and long-term outcomes of mitral annular reconstruction (MAR) with pericardium during mitral valve replacement (MVR), and analyzed the risk factors associated with post-operative mortality. METHODS: Between May 1997 and April 2013, 78 consecutive patients underwent MVR with MAR. The indications for MAR were treatment for annular infection in native valve endocarditis (n = 23, 29.5%) or prosthetic valve endocarditis (n = 26, 33.3%), reinforcement of damaged annulus resulting from a previous operation (n = 17, 21.8%), complete excision of extensive calcification (n = 9, 11.5%), and left ventricular or left atrial rupture (n = 3, 3.8%). Patients were classified into infective endocarditis (n = 49) and non-endocarditis groups (n = 29). The mean follow-up period was 59.4 ± 47.3 months. RESULTS: There were two operative deaths and 11 cases of late mortality in the endocarditis group and five cases in the non-endocarditis group. Late prosthetic valve endocarditis occurred in four patients. The overall survival rate at 1 and 10 years was 94.8% and 65.1%, respectively. There was no statistical difference in the overall survival, freedom from reoperation, and freedom from endocarditis rates between the groups (P = 0.565, P = 0.635, and P = 0.449, respectively). Univariable and multivariable analyses revealed that pre-operative left ventricular dysfunction (ejection fraction <40%) was an independent predictor of overall mortality. CONCLUSIONS: The early and long-term results of MAR with pericardium during MVR are acceptable in both endocarditis and non-endocarditis patients.
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