Determination of pressure gradient in mitral stenosis with Doppler echocardiography.

AUTOR(ES)

Holen, J

RESUMO

The accuracy of a non-invasive ultrasound Doppler technique for the determination of the pressure gradient in mitral stenosis was evaluated in a study of 8 adult patients. Transseptal left atrial catheterisation and retrograde left ventricular catheterisation were performed. The same diastoles were used to compare the gradient constructed from the ultrasound data (delta PU) with that constructed from the manometric data (delta PM). In the 8 patients the difference betweent he mean diastolic values of delta PU and delta PM was - 0.54 +/- 1.0 (SD) mmHg. The corresponding figure for mid-diastole was 0.01 +/- 0.9 (SD) mmHg. The results indicate that the ultrasound technique is sufficiently accurate for diagnostic purposes.

Documentos Relacionados

• Measurement of mitral regurgitation by Doppler echocardiography.
• Aortic stenosis in adults. Non-invasive estimation of pressure differences by continuous wave Doppler echocardiography.
• Determination of cardiac output by Doppler echocardiography.
• Morphometric investigations in mitral stenosis using two dimensional echocardiography.
• Non-invasive diagnosis of mitral regurgitation by Doppler echocardiography.