title: [Effect of hemodialysis on peak velocity of early diastolic mitral annulus motion].
abstract: 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.
authors.affiliation: Department of Hypertension and Cardiorenal Medicine, Dokkyo University School of Medicine, Tochigi.
authors.forename: Kouichi
authors.initials: K
authors.lastname: Tamano
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Kobayashi
authors.forename: Masaki
authors.initials: M
authors.lastname: Takahashi
authors.forename: Takeaki
authors.initials: T
authors.lastname: Honda
authors.forename: Shuichiro
authors.initials: S
authors.lastname: Uetake
authors.forename: Rieko
authors.initials: R
authors.lastname: Mitobe
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Futoo
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Matsuoka
mesh_terms: 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