Cardiopulmonary bypass.
D001024:Aortic Valve Stenosis / Q000601:surgery; D006348:Cardiac Surgical Procedures; D005112:Extracorporeal Circulation; D006350:Heart Valve Prosthesis; D006355:Heart-Lung Machine; D006801:Humans; D008297:Male; D008875:Middle Aged; D008991:Monitoring, Physiologic; D010353:Patient Education as Topic; D011182:Postoperative Care; D011300:Preoperative Care