title: Use of tissue Doppler to assess right ventricle function in hemodialysis patients.
abstract: OBJECTIVE
  Although there are plenty of data about the differences in left ventricular tissue Doppler (TD) velocities by preload reduction, only a few studies regarding right ventricular function are found in the literature. We investigated the effect of intravascular volume reduction on right ventricular function by ultrafiltration in dialysis patients.
  
  
  METHODS
  27 end-stage renal failure patients who were hypervolemic and undergoing hemodialysis were included in the study. TD studies of the right ventricle were performed before and 1 h after dialysis. These data were compared.
  
  
  RESULTS
  The mean age of the patients was 41 +/- 15 years and mean volume of ultrafiltration was 3.8 +/- 1.8 liters. Systolic, early and late diastolic lateral annular TD velocities before dialysis were 0.109 +/- 0.029, 0.088 +/- 0.039, 0.111 +/- 0.039 m/s, and after dialysis were 0.099 +/- 0.028, 0.078 +/- 0.036, 0.106 +/- 0.037 m/s, respectively (p = 0.216, p = 0.112, p = 0.350). Myocardial early diastolic velocity decreased significantly (p = 0.049) but systolic and late diastolic velocities did not change significantly (p = 0.579, p = 0.146).
  
  
  CONCLUSIONS
  Right ventricular systolic and diastolic velocities detected by TD were not or only minimally affected by preload reduction in hemodialysis patients and the TD early/late ratio is the most valuable variable that can predict right ventricular diastolic function. The right ventricular systolic and early diastolic TD velocities were positively correlated with left ventricle ejection fraction.
authors.affiliation: Department of Cardiology, Abant Izzet Baysal University, Izzet Baysal Medical Faculty, Kalicikonutlar, Bolu, Turkey. huseyinarinc@hotmail.com
authors.forename: Huseyin
authors.initials: H
authors.lastname: Arinc
authors.forename: Huseyin
authors.initials: H
authors.lastname: Gunduz
authors.forename: Ali
authors.initials: A
authors.lastname: Tamer
authors.forename: Hakan
authors.initials: H
authors.lastname: Ozhan
authors.forename: Ramazan
authors.initials: R
authors.lastname: Akdemir
authors.forename: Hayrettin
authors.initials: H
authors.lastname: Saglam
authors.forename: Abdurrahman
authors.initials: A
authors.lastname: Oguzhan
authors.forename: Cihangir
authors.initials: C
authors.lastname: Uyan
mesh_terms: D000328:Adult; D003971:Diastole; D004452:Echocardiography / Q000592:standards; D005260:Female; D006352:Heart Ventricles / Q000000981:diagnostic imaging*; D006801:Humans; D007676:Kidney Failure, Chronic / Q000503:physiopathology* / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D006435:Renal Dialysis; D013318:Stroke Volume; D013599:Systole; D013997:Time Factors; D016278:Ventricular Function, Right