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  • Title: Outcome after mitral valve repair for acute and healed infective endocarditis.
    Author: Feringa HH, Bax JJ, Klein P, Klautz RJ, Braun J, van der Wall EE, Poldermans D, Dion RA.
    Journal: Eur J Cardiothorac Surg; 2006 Mar; 29(3):367-73. PubMed ID: 16423532.
    Abstract:
    OBJECTIVE: To evaluate the long-term clinical and echocardiographic outcomes after mitral valve surgery for acute and healed infective endocarditis. METHODS: Of 37 consecutive patients presenting with native mitral valve endocarditis, mitral valve repair (MVRep) was feasible in 34 (92%) patients. In 17 (50%) patients, surgery was indicated during antibiotic therapy (acute endocarditis), whereas 17 (50%) underwent surgery after antibiotic therapy was completed (healed endocarditis). Patients were evaluated for early and long-term clinical and echocardiographic outcome. RESULTS: In-hospital death occurred in two (6%) patients and two (6%) died during follow-up, with a 2-year survival of 100% in healed endocarditis as compared to 76% (p=0.03) in patients undergoing surgery in acute endocarditis. No patient with acute endocarditis needed repeat mitral valve surgery. Three (9%) patients underwent re-operation because of early mitral regurgitation (n=1) or late recurrent endocarditis (n=2). The average grade of mitral regurgitation was 3.8+/-0.4 (all grades 3 to 4+) before surgery and 0.6+/-0.8 during follow-up (p<0.001). Significant reductions in left atrial (from 52+/-8mm to 46+/-8mm, p=0.004), left ventricular end-diastolic (from 61+/-8mm to 54+/-8mm, p=0.001), and end-systolic dimensions (from 41+/-8mm to 36+/-9 mm, p=0.02) were observed during follow-up, compared to preoperative dimensions. Of note, significant reverse remodeling was only observed in patients undergoing surgery in healed endocarditis. CONCLUSION: MVRep for mitral valve endocarditis is feasible with good clinical results, maintained valve competency with significant reductions in left atrial and left ventricular dimensions after surgery.
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