title: [Case of ball variance following aortic valve replacement].
mesh_terms: D000328:Adult; D001021:Aortic Valve / Q000601:surgery*; D004562:Electrocardiography; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008297:Male; D009206:Myocardium / Q000473:pathology