European Journal of Cardio-Thoracic Surgery, Vol 11, 1183-1184, Copyright © 1997 by European Association for Cardio-thoracic Surgery
Haemodynamic performance of a 16-mm Carbomedics aortic prosthesis
D Oswal, EB Woo, PH Kay and JM McLenachan
The Department of Cardiothoracic Surgery, The Leeds General Infirmary, UK.
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.