Haemodynamic performance of a 16-mm Carbomedics aortic prosthesis.
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.
Oswal
D
D
The Department of Cardiothoracic Surgery, The Leeds General Infirmary, UK.
Woo
E B
EB
Kay
P H
PH
McLenachan
J M
JM
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
D002316:Cardiotonic Agents; D004280:Dobutamine