Open-heart surgery in patients over sixty years of age.
D000367:Age Factors; D000368:Aged; D001024:Aortic Valve Stenosis / Q000601:surgery; D006348:Cardiac Surgical Procedures / Q000401:mortality; D005112:Extracorporeal Circulation; D005260:Female; D006322:Heart Aneurysm / Q000601:surgery; D006331:Heart Diseases / Q000401:mortality / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged