[Changes in the morphology of the Doppler wave of the pulmonary venous blood flow in hypertensive heart diseases].
Analysis of pulmonary venous flow can contribute to understanding of ventricular diastole; 40 essential hypertensive subjects (HT) who had never been treated and 30 healthy normotensive subjects (NT) were studied by Doppler-echocardiography. All the subjects had normal systolic function on echocardiography. The analysis focussed on the velocity of transmitral flow as measured by pulsed Doppler, measuring E and A waves, and also on flow in the right superior pulmonary vein: S and D waves measured in the apical position. The D wave appeared to correlate with age (r = 0.62, p < 0.001), with systolic blood pressure (SBP) (r = -0.44, p < 0.05) a correlation which remained after adjustment for age, and for measures of diastolic function across the mitral valve: A wave, and to E wave in a less closely related fashion. The D wave was of a lower velocity with mitral Doppler type A than with normal mitral Doppler (46 +/- 9 vs 36 +/- 8 cm/s; p < 0.005). The S wave was weakly related to morphological measurements of LV such as end-diastolic diameter of LV(r = 0.3; p < 0.01). The Doppler of pulmonary venous flow may help in describing impairment in LV filling by giving complementary data on Doppler mitral flow. A type 1 mitral Doppler corresponds to a low amplitude D wave with the presence of elevation of LVEDP which limits LV filling. In difficult situations when E and A velocities are similar (normal or pseudonormal form) a weak velocity of D wave is in favour of type 1.
Tremel
F
F
Service de médecine interne et de cardiologie, CHU de Grenoble.
Chevallier
M
M
Longère
P
P
Siché
J P
JP
de Gaudemaris
R
R
Mallion
J M
JM
D000328:Adult; D001783:Blood Flow Velocity; D003971:Diastole; D015150:Echocardiography, Doppler; D005260:Female; D006331:Heart Diseases / Q000000981:diagnostic imaging* / Q000503:physiopathology; D006801:Humans; D006973:Hypertension / Q000000981:diagnostic imaging* / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D011652:Pulmonary Circulation
Variations de la morphologie du Doppler du flux veineux pulmonaire dans la cardiopathie hypertensive.