Results: We found significant inverse correlation between postdialysis NT-proBNP levels with left ventricular ejection fraction (EF) (r = - 0.42, p < 0.001), and significant positive correlation between postdialysis NT-proBNP levels with index diameter of the inferior vena cava in hemodialysis patients without left ventricular systolic dysfunction (r = 0.42, p < 0.001).