Related Experiment Videos
[Comparison between two different on-line dialytic techniques: Standard HFR vs post-dilutional HFR]
C Meloni1, P M Ghezzi, S Petroni
1U.O.C. di Nefrologia e Dialisi, Ospedale S. Eugenio, Rome. jumel@tin.it
Summary
Post-dilution hemodiafiltration reinfusion (PDHFR) improves depurative efficacy over standard hemodiafiltration reinfusion (HFR). This enhanced hemodialysis technique increases urea and beta2-microglobulin removal while reducing blood rest and inflammation.
Area of Science:
- Nephrology
- Renal Replacement Therapy
- Hemodialysis
Background:
- Standard hemodiafiltration reinfusion (HFR) may not achieve optimal depurative efficacy.
- Improving hemodialysis techniques is crucial for managing uremia.
Purpose of the Study:
- To evaluate if post-dilution HFR (PDHFR) enhances purification efficiency compared to standard HFR.
- To investigate the impact of inverting the purification sequence in HFR.
Main Methods:
- A comparative study involving six uremic patients over 12 months.
- Standard HFR was performed for 6 months, followed by PDHFR for 6 months.
- Dialytic efficacy, filter blood rest, and cytokine behavior were assessed.
Main Results:
- PDHFR significantly increased urea extraction and Kt/V.
- Beta2-microglobulin (beta2-m) extraction and blood rest showed significant improvement with PDHFR.
- Interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-alpha) levels decreased significantly after PDHFR.
Conclusions:
- Inverting the HFR configuration to PDHFR enhances depurative efficacy.
- PDHFR improves the removal of uremic toxins like urea and beta2-m.
- Reduced cytokine levels suggest PDHFR may mitigate the uremic microinflammatory state.