Heterograft aortic valve replacement.
D000818:Animals; D001021:Aortic Valve / Q000637:transplantation*; D001022:Aortic Valve Insufficiency / Q000601:surgery; D001024:Aortic Valve Stenosis / Q000601:surgery; D002417:Cattle; D004562:Electrocardiography; D005500:Follow-Up Studies; D006350:Heart Valve Prosthesis; D006801:Humans; D010701:Phonocardiography; D011183:Postoperative Complications; D013552:Swine; D014183:Transplantation, Heterologous