[Comparison between two different on-line dialytic techniques: Standard HFR vs post-dilutional HFR].

Purpose: Among hemodiafiltration (HFD) techniques, hemodiafiltration reinfusion (HFR) seems unable to achieve an optimal depurative efficacy. This study aimed to evaluate whether the HFR technique as suggested in its original configuration could be improved by devising a new technique (post-dilution HFR (PDHFR)) inverting the purification sequence to increase the purification efficiency of the entire system.

Methods: We performed standard HFR in six uremic patients during 6 months and, subsequently, during a further 6 months, PDHFR was performed.

One year of clinical experience in postdilution hemofiltration with online reinfusion of regenerated ultrafiltrate.

Background/aims: Hemofiltrate reinfusion (HFR) is characterized by the use of regenerated ultrafiltrate as replacement fluid. We set up a new technique, postdilution HFR (PD-HFR), aiming at increasing purification efficiency, treatment tolerance and at reducing inflammatory states.

Methods: We performed PD-HFR in 6 uremic patients during 1 year.