title: [Assessment of right ventricular systolic function in patients with chronic renal failure before and after hemodialysis by means of various echocardiographic modalities].
abstract: OBJECTIVE
  The goal of the study was to determine the effect of decreased preload on right ventricular systolic function, as measured by new and old echocardiographic parameters in chronic renal failure (CRF) patients.
  
  
  METHODS
  A total of 30 CRF patients (mean age 48±15 years, 11 male and 19 female) undergoing hemodialysis were included in the study. Echocardiography was used to determine left ventricular ejection fraction (LVEF), left atrial volume, right atrial area, right ventricular end-diastolic area, systolic pulmonary artery pressure, right ventricular fractional area change (RV FAC), right ventricular myocardial performance index (Tei index), right ventricular tissue Doppler S' (RV S') velocity, isovolumic myocardial acceleration (IVA), tricuspid annular plane systolic excursion (TAPSE) and right ventricular outflow tract systolic excursion (RVOT SE) before and after hemodialysis.
  
  
  RESULTS
  The RV S' velocity and RVOT SE parameters, which are indicators of right ventricular systolic function, did not change significantly after hemodialysis (p=0.919, p=0.186). However, the RV FAC, Tei index, IVA and TAPSE values were significantly increased (p<0.001 for all). TAPSE was found to be the only parameter that had a positive correlation with the amount of fluid removed (p=0.041 and r=0.375).
  
  
  CONCLUSIONS
  Although RV S' velocity and RVOT SE, was found to be independent of preload, RV FAC, Tei index, IVA and TAPSE values were dependent on preload. In addition, TAPSE correlated with the amount of fluid removed.
authors.affiliation: Department of Cardiology, Dicle University Faculty of Medicine, Diyarbakır, Turkey.
authors.forename: Abdurrahman
authors.initials: A
authors.lastname: Akyüz
authors.affiliation: Department of Cardiology, Dicle University Faculty of Medicine, Diyarbakır, Turkey.
authors.forename: Abdulkadir
authors.initials: A
authors.lastname: Yıldız
authors.affiliation: Department of Cardiology, Dicle University Faculty of Medicine, Diyarbakır, Turkey.
authors.forename: Mehmet Ata
authors.initials: MA
authors.lastname: Akıl
authors.affiliation: Department of Cardiology, Dicle University Faculty of Medicine, Diyarbakır, Turkey.
authors.forename: Mehmet Zihni
authors.initials: MZ
authors.lastname: Bilik
authors.affiliation: Department of Cardiology, Dicle University Faculty of Medicine, Diyarbakır, Turkey.
authors.forename: Ümit
authors.initials: Ü
authors.lastname: İnci
authors.affiliation: Department of Cardiology, Dicle University Faculty of Medicine, Diyarbakır, Turkey.
authors.forename: Fethullah
authors.initials: F
authors.lastname: Kayan
authors.affiliation: Department of Biostatistics, Dicle University Faculty of Medicine, Diyarbakır, Turkey.
authors.forename: İsmail
authors.initials: İ
authors.lastname: Yıldız
authors.affiliation: Department of Nephrology, Dicle University Faculty of Medicine, Diyarbakır, Turkey.
authors.forename: Zülfikar
authors.initials: Z
authors.lastname: Yılmaz
authors.affiliation: Department of Nephrology, Dicle University Faculty of Medicine, Diyarbakır, Turkey.
authors.forename: Yaşar
authors.initials: Y
authors.lastname: Yıldırım
authors.affiliation: Department of Cardiology, Dicle University Faculty of Medicine, Diyarbakır, Turkey.
authors.forename: Mehmet Sıddık
authors.initials: MS
authors.lastname: Ülgen
mesh_terms: D015150:Echocardiography, Doppler / Q000379:methods; D005260:Female; D006801:Humans; D007676:Kidney Failure, Chronic; D008297:Male; D008875:Middle Aged; D006435:Renal Dialysis / Q000379:methods; D013318:Stroke Volume; D013599:Systole; D018487:Ventricular Dysfunction, Left / Q000503:physiopathology*; D018497:Ventricular Dysfunction, Right / Q000503:physiopathology*