## Abstract We describe a series of patients with suspected aortic stenosis who were noted to have a significant aortic valve gradient by Doppler echocardiography but only a minimal gradient during cardiac catheterization. Although the pressure recovery phenomenon partially explained this discrepan
Effect of catheter positioning on the variability of measured gradient in aortic stenosis
β Scribed by Assey, Michael E. ;Zile, Michael R. ;Usher, Bruce W. ;Karavan, Mark P. ;Carabello, Blase A.
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 453 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0098-6569
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
This technical note describes a double lumen pigtail catheter that can facilitate measurement of the aortic valve gradient in patients with aortic stenosis. The catheter is passed retrograde into the left ventricle with the aid of a flexible guide wire. In two patients the measured gradient was not
## Abstract Echocardiography was used to diagnose a calcified and stenotic stentβmounted aortic homograft in the mitral position. Poorly moving intense echoes from the valve leaflets suggested extensive tissue fibrosis and calcification. Markedly reduced diastolic posterior movement of the echoes r