Open heart surgery in patients over 70 years of age: mortality and morbidity.
D000368:Aged; D001021:Aortic Valve / Q000601:surgery; D006348:Cardiac Surgical Procedures / Q000401:mortality; D005260:Female; D006331:Heart Diseases / Q000601:surgery; D006349:Heart Valve Diseases / Q000453:epidemiology; D006801:Humans; D007629:Kentucky; D008297:Male; D008943:Mitral Valve / Q000601:surgery; D011183:Postoperative Complications; D012306:Risk