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  • Title: Left ventricle and left atrium remodeling after mitral valve replacement in case of mixed mitral valve disease of rheumatic origin.
    Author: Topal AE, Eren MN, Celik Y.
    Journal: J Card Surg; 2010 Jul; 25(4):367-72. PubMed ID: 20529156.
    Abstract:
    BACKGROUND: The objective of this study was to evaluate the recovery of the left ventricle (LV) function, and to analyze postoperative size reduction of LV and left atrium (LA), after mitral valve replacement (MVR) in patients with chronic rheumatic mitral disease. METHODS: Thirty consecutive elective patients with MVR for mixed mitral disease of rheumatic origin formed the study group. Of these, 21 (70%) were women and the mean age was 37 years. Transthoracic echocardiography was performed prior to surgery, at three-month follow-up, and at three-year follow-up except for the latest nine patients. RESULTS: The mean duration of follow-up was 3.6 +/- 1.8 years. MVR surgery improved the functional class (mean New York Heart Association [NYHA] class) at three-year follow-up (p = 0.008). LV end-diastolic diameter and LA sizes decreased after MVR. Total chordal preservation causes better outcome, regarding to LV ejection fraction (LVEF) and NYHA functional class of patients. Preoperative high NYHA class, low LVEF, and high LV end-systolic diameter (LVESd) resulted with postoperative LV dysfunction (p were < 0.001, < 0.001, and 0.006, respectively). CONCLUSION: In patients with mixed mitral valve disease, MVR enhanced LV and LA remodeling resulting in better NYHA function. Preoperative NYHA, LVEF, and LVESd were significant predictors of postoperative LV function.
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