Why choose high volume online post-dilution hemodiafiltration?
Carlo Basile1, Andrew Davenport2, Peter J Blankestijn3
1Division of Nephrology, Clinical Research Branch, Miulli General Hospital, 70121, Acquaviva delle Fonti, Italy. basile.miulli@libero.it.
Journal of Nephrology
|September 3, 2016
Summary
High-volume hemodiafiltration (HDF) improves survival in dialysis patients, primarily by reducing cardiovascular mortality. While promising, further research is needed to confirm its superiority over conventional hemodialysis.
Area of Science:
- Nephrology
- Cardiovascular Medicine
- Renal Replacement Therapy
Background:
- End-stage kidney disease patients on maintenance dialysis face high mortality rates (15-20% annually).
- Conventional hemodialysis has limitations in removing middle molecular weight uremic toxins, linked to increased mortality.
- Convective therapies like hemodiafiltration (HDF) are being explored to improve patient outcomes.
Purpose of the Study:
- To evaluate the survival outcomes of patients treated with online post-dilution HDF compared to conventional hemodialysis.
- To assess the impact of HDF on cardiovascular mortality and blood pressure stability.
- To determine if HDF offers benefits across different patient subgroups.
Main Methods:
- Analysis of four large prospective randomized controlled trials (RCTs) from European countries.
- Pooled individual participant data analysis from these four RCTs.
- Review of four recent meta-analyses on convective therapies.
Main Results:
- High-volume post-dilution online HDF is associated with improved overall survival.
- The survival benefit is mainly driven by a reduction in cardiovascular mortality.
- Improved intra-dialytic blood pressure stability may contribute to the observed benefits.
Conclusions:
- Current evidence supports high-volume post-dilution HDF as a potentially superior dialysis technique.
- The benefits of HDF are not limited to specific patient subgroups.
- Further RCTs are required to definitively establish the dose-response relationship and superiority of HDF over hemodialysis.
Keywords:
Cardiovascular mortalityComvectionHemodiafiltrationHemodialysisOnline post-dilution hemodiafiltrationSudden deathMore Related Videos
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