[Doppler echocardiographic evaluation of physical properties of the aorta and left ventricular geometry in normotensive hemodialyzed patients].
Twenty-five patients undergoing hemodialysis therapy with a normal blood pressure (16 men, 9 women, age = 54 +/- 14 years) and 25 sex and age-matched healthy normotensive subjects were examined by doppler-echocardiography. Pulse wave velocity (PWV) in the thoracic descending aorta, diameter of the ascending aorta (AD), left ventricular mass (m), thickness-radius ratio (th/r), shortening fraction (SF), end systolic pressure-diameter ratio (P/D) and the ratio of late and early mitral velocity (A/E) were obtained. Pulse wave velocity, SF, P/D, were not significantly different in the 2 groups whereas AD, m, th/r, and A/E were significantly larger in dialysis patients than in controls (both, p < 0.001). These results indicate that in patients treated by hemodialysis with a normal blood pressure, a concentric left ventricular hypertrophy is associated with a normal aortic stiffness, suggesting a depressed myocardial contractility.
Dahan
M
M
Service de cardiologie, hôpital Beaujon, Clichy.
Duvic
C
C
Viron
B
B
Paillole
C
C
Baleynaud
S
S
Gourgon
R
R
Mignon
F
F
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001011:Aorta / Q000000981:diagnostic imaging / Q000502:physiology; D001794:Blood Pressure; D015150:Echocardiography, Doppler; D005260:Female; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D017379:Hypertrophy, Left Ventricular / Q000000981:diagnostic imaging / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D006435:Renal Dialysis; D016276:Ventricular Function; D016277:Ventricular Function, Left / Q000502:physiology
Etude par échocardiographie doppler des propriétés physiques de l'aorte et de la géométrie ventriculaire gauche chez des patients hémodialysés normotendus.