title: Aortic valve replacement in patients over the age of sixty.
mesh_terms: D000368:Aged; D001021:Aortic Valve / Q000601:surgery*; D001022:Aortic Valve Insufficiency / Q000601:surgery; D001024:Aortic Valve Stenosis / Q000601:surgery; D001027:Aortography; D001794:Blood Pressure; D001810:Blood Volume; D006328:Cardiac Catheterization; D002302:Cardiac Output; D005080:Exercise Test; D005260:Female; D005500:Follow-Up Studies; D006321:Heart / Q000503:physiopathology; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006454:Hemoglobins; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D011652:Pulmonary Circulation; D013927:Thrombosis / Q000209:etiology; D014655:Vascular Resistance
chemical_list: D006454:Hemoglobins