title: Early valve replacement for preservation of ventricular function?
mesh_terms: D000328:Adult; D006348:Cardiac Surgical Procedures / Q000009:adverse effects; D006331:Heart Diseases / Q000517:prevention & control*; D006349:Heart Valve Diseases / Q000601:surgery*; D006350:Heart Valve Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000401:mortality