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      Early improvement in congestive heart failure after correction of secondary mitral regurgitation in end-stage cardiomyopathy.

      American Heart Journal

      Adult, Aged, Cardiac Output, Cardiac Volume, Cardiomyopathy, Dilated, complications, ultrasonography, Diastole, Echocardiography, Echocardiography, Doppler, Female, Follow-Up Studies, Heart Failure, therapy, Humans, Male, Middle Aged, Mitral Valve Insufficiency, etiology, surgery, Myocardial Ischemia, Stroke Volume, Ventricular Dysfunction, Left, Ventricular Function, Left

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          Mitral regurgitation frequently complicates dilated cardiomyopathy, aggravates volume overload of the left ventricle, and contributes to symptoms of congestive heart failure. This study was performed to assess the impact of mitral valve reconstruction in nine consecutive patients with severe mitral regurgitation resulting from end-stage dilated cardiomyopathy. Clinical and echocardiographic follow-up were obtained 17 +/- 5 and 16 +/- 6 weeks after surgery, respectively. There were no operative or early deaths. All patients noted symptomatic improvement postoperatively, and there was a decrease of at least one New York Heart Association functional class (3.9 +/- 0.3 to 1.7 +/- 0.5, p < 0.001). Quantitative echocardiography/Doppler demonstrated a small but significant decrease in left ventricular end-diastolic volume (317 +/- 111 ml to 291 +/- 105 ml, p = 0.04) and increases in ejection fraction (18 +/- 5% to 24 +/- 9%, p = 0.02) and forward cardiac output (3.1 +/- 1.0 to 4.6 +/- 0.8 L/min, p < 0.01) on follow-up. Mitral valve reconstruction for the correction of mitral regurgitation in patients with end-stage dilated cardiomyopathy results in improved symptomatic status on early follow-up accompanied by evidence of improvement in left ventricular performance.

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