Comparision of anemia, malnutrition, dyslipidemia, hypertension, hyperparathyroidism and uremic itching between low-flux and high-flux dialyzer. Patients and method: Patients: 75 stable chronic hemodialysis patients > 4 months, divided by 2 groups: hemodialyzed by low - flux (n=48) and high-flux dialyzer (n=27).