Objective: Hyperphosphatemia leads to increased risk of death in maintenance hemodialysis patients (MHD). This study investigated phosphorus (P) removal, P reduction rate (PRR), and P rebound, comparing on-line, high-volume hemodiafiltration in postdilution (HDF) and high-flux hemodialysis (HD) in a setting of an equal amount of produced dialysate solution in both modalities.
Methods: A total of 22 MHD patients, treated with regular 3 x 4 hours HDF weekly, were randomly dialyzed with one 4-hour session of HDF and of HD.