Open heart surgery in elderly patients.
D000368:Aged; D001024:Aortic Valve Stenosis / Q000601:surgery; D006348:Cardiac Surgical Procedures; D005260:Female; D006344:Heart Septal Defects, Atrial / Q000601:surgery; D006350:Heart Valve Prosthesis; D006801:Humans; D008297:Male; D008944:Mitral Valve Insufficiency / Q000601:surgery