Hemodialysis Review Emphasizes Patient Outcomes and Evidence for High-Volume Hemodiafiltration

A review in the Journal of the American Society of Nephrology assesses contemporary extracorporeal dialysis modalities and emerging technologies through an outcome-based framework. The authors emphasize survival, hospitalization, symptoms, functional status, and patient-reported outcomes, alongside safety, equity, sustainability, and value. They argue that improvements in solute clearance and biochemical targets have delivered limited gains in patient-important outcomes.

According to the review, randomized trials and individual-participant-data meta-analyses support better survival with high-volume online hemodiafiltration compared with high-flux hemodialysis. Patient-reported outcomes and cost-effectiveness findings provide additional support. However, patients in CONVINCE achieved high convection volumes, and benefits remain uncertain for patients unable to reach those targets. The supplied abstract does not report sample sizes, effect estimates, or convection-volume thresholds.

Evidence of meaningful clinical benefit remains limited for medium cut-off membranes, adsorption-based approaches, personalized schedules, and portable, wearable, or implantable technologies, despite physiologic rationales and selected surrogate improvements. The authors caution against widespread adoption based on these measures alone. Implementing hemodiafiltration also depends on infrastructure, reimbursement, regulation, and quality assurance. The review calls for comparative-effectiveness research and routine standardized patient-reported outcomes to guide care; it does not present a new clinical trial.