Cardiac surgery in the 8th and 9th decades of life.
D000367:Age Factors; D000368:Aged; D001021:Aortic Valve / Q000473:pathology; D006328:Cardiac Catheterization; D006348:Cardiac Surgical Procedures / Q000401:mortality*; D003327:Coronary Disease / Q000601:surgery; D006349:Heart Valve Diseases / Q000601:surgery; D006801:Humans; D008943:Mitral Valve / Q000473:pathology