title: Determination of the source and severity of a transvalvular left ventricular outflow tract gradient in patients with a prosthetic aortic valve.
authors.affiliation: Department of Medicine, University of Virginia Health System, Charlottesville, Virginia 22908, USA. mr8b@virginia.edu
authors.forename: Michael
authors.initials: M
authors.lastname: Ragosta
mesh_terms: D000368:Aged; D001022:Aortic Valve Insufficiency / Q000601:surgery; D001024:Aortic Valve Stenosis / Q000601:surgery; D001027:Aortography / Q000379:methods*; D006328:Cardiac Catheterization / Q000379:methods*; D015150:Echocardiography, Doppler / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D019918:Heart Valve Prosthesis Implantation / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011475:Prosthesis Failure; D012086:Reoperation; D012720:Severity of Illness Index; D014694:Ventricular Outflow Obstruction / Q000175:diagnosis* / Q000209:etiology