Effect of dialysis on the right ventricular function after treatment of superior vena cava obstruction
Zhu Peixin
Wang Chuangsheng
Li Jianjun
Chen Jinzhou
Tian Hengsong
Abstract：Objective To explore the changes in the size and function of right ventricle in patients with superior vena cava obstruction caused by dialysis. Method 56 hemodialysis patients with superior vena cava obstruction undergoing central venous catheterization were enrolled. The right ventricular vertical diameter, right ventricular transverse diameter, basal diameter of right ventricular, right ventricular outflow tract (RVOT) proximal diameter, right ventricular outflow tract (RVOT) distal diameter, right ventricular wall thickness, right ventricular end-diastolic volume (RVEDV), right ventricular end-systolic volume (RVESV), tricuspid annular plane systolic excursion (TAPSE), right ventricular fraction area change (FAC), right ventricular ejection fraction (RVEF), Tei index, peak systolic velocity (S') at the lateral tricuspid annulus, inferior vena cava collapse rate, E/A ratio, E/E' ratio, right atrium length, right atrium width, right atrium FAC were measured. Result After opening of superior vena cava obstruction, the right ventricular vertical diameter, right ventricular transverse diameter, basal diameter of right ventricular, RVOT proximal and distal internal diameter, right ventricular wall thickness and RVEDV and RVESV were significantly lower than those before opening (P<0.05). The levels of TAPSE, FAC, RVEF and S' in patients were significantly improved, and the Tei index was decreased significantly. At the same time, the inferior vena cava collapse rate and the ratio of E/A and right atrium FAC were improved significantly. E/e and the ratio of right atrial length and width were significantly decreased. There were significant differences in these above indexes before and after opening (P<0.05). Conclusion After opening of superior vena cava obstruction, the right ventricular function was significantly improved in hemodialysis patients with central venous catheterization. The echocardiographic findings showed that the right ventricular size, wall thickness, and right ventricular systolic function and diastolic function are significantly improved.
Keywords：HemodialysisCentral venous catheterizationSuperior vena cava obstructionRight ventricular function
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 1121-1123 )