Mitral valvuloplasty is superior to valve replacement for preservation of left ventricular function: An intraoperative two-dimensional echocardiography study
1987
To investigate the mechanism and time of onset of ventricular dysfunction after mitral valve replacement, 18 patients with pure, severe mitral regurgitation (of whom 10 underwent mitral valve repair and 8 standard mitral valve replacement with papillary muscle excision) were studied by intraoperative two-dimensional echocardiography immediately before and immediately after the operative procedure. No patient sustained a perioperative myocardial infarction or had any residual mitral regurgitation. Although preoperative hemodynamics were similar, postoperatively the patients with valve repair had a lower pulmonary capillary wedge pressure than did the patients with valve replacement (8.6 ± 1.9 versus 14.4 ± 7.5 mm Hg, p
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