Open heart surgery in elderly patients.
D000368:Aged; D006328:Cardiac Catheterization; D006348:Cardiac Surgical Procedures; D004562:Electrocardiography; D005260:Female; D006344:Heart Septal Defects, Atrial / Q000601:surgery; D006349:Heart Valve Diseases / Q000601:surgery; D006801:Humans; D008297:Male; D013997:Time Factors