title: Haemodynamic performance of a 16-mm Carbomedics aortic prosthesis.
abstract: A 55-year-old lady underwent repeat aortic valve replacement using a 16-mm Carbomedics prosthesis. She made an uneventful postoperative recovery and now leads an unrestricted life. Doppler echocardiography reveals a 21-mm Hg gradient across the valve at rest. This did not increase with an infusion of 30 mcg/kg per min of dobutamine, which resulted in an increase in the cardiac output from 1.96 to 5.46 l/min.
authors.affiliation: The Department of Cardiothoracic Surgery, The Leeds General Infirmary, UK.
authors.forename: D
authors.initials: D
authors.lastname: Oswal
authors.forename: E B
authors.initials: EB
authors.lastname: Woo
authors.forename: P H
authors.initials: PH
authors.lastname: Kay
authors.forename: J M
authors.initials: JM
authors.lastname: McLenachan
mesh_terms: D001021:Aortic Valve; D002316:Cardiotonic Agents; D004280:Dobutamine; D004452:Echocardiography; D005080:Exercise Test; D005260:Female; D006350:Heart Valve Prosthesis; D006439:Hemodynamics; D006801:Humans; D008875:Middle Aged; D011474:Prosthesis Design
chemical_list: D002316:Cardiotonic Agents; D004280:Dobutamine