Aortic-valve replacement.
D001021:Aortic Valve / Q000637:transplantation*; D006349:Heart Valve Diseases / Q000601:surgery*; D006350:Heart Valve Prosthesis; D006801:Humans; D009026:Mortality; D011183:Postoperative Complications; D013536:Suture Techniques; D014184:Transplantation, Homologous