[Heart valve surgery in geriatric patients].
D000367:Age Factors; D000368:Aged; D001021:Aortic Valve / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D006349:Heart Valve Diseases / Q000401:mortality / Q000601:surgery*; D006350:Heart Valve Prosthesis / Q000401:mortality*; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000601:surgery