[Effect of hemodialysis on peak velocity of early diastolic mitral annulus motion].
OBJECTIVE
Peak velocities of early diastolic mitral annulus motion (Ea) assessed by tissue Doppler imaging are relatively preload independent. Whether Ea decreases after hemodialysis or not is unclear. This study investigated the effect of hemodialysis on Ea.


METHODS
The study group consisted of 23 hemodialysis patients without organic heart disease. Echocardiography was performed before and after hemodialysis, and Ea was compared with the peak velocity of early mitral inflow (E). Decreases in the body weight, E and Ea were calculated as indexes of decrease by hemodialysis.


RESULTS
After hemodialysis, E decreased significantly (p = 0.005) but Ea did not change (p = 0.09). The decrease in Ea was significantly smaller than that in E (p < 0.0001). The decrease in E correlated significantly (r = 0.52, p < 0.05) with the decrease in the body weight, but the decrease in Ea did not correlate with the decrease in the body weight.


CONCLUSIONS
Ea is little affected by hemodialysis compared with E. The effect of hemodialysis on Ea can be ignored if the amount of fluid removal is small.
Tamano
Kouichi
K
Department of Hypertension and Cardiorenal Medicine, Dokkyo University School of Medicine, Tochigi.
Kobayashi
Tsutomu
T
Takahashi
Masaki
M
Honda
Takeaki
T
Uetake
Shuichiro
S
Mitobe
Rieko
R
Futoo
Yasuo
Y
Matsuoka
Hiroaki
H
D000368:Aged; D001783:Blood Flow Velocity; D003326:Coronary Circulation; D003971:Diastole; D004452:Echocardiography; D005260:Female; D006801:Humans; D007676:Kidney Failure, Chronic / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000000981:diagnostic imaging / Q000502:physiology*; D006435:Renal Dialysis / Q000009:adverse effects*; D016277:Ventricular Function, Left