The kinetics of phosphate (P) during a treatment of hemofiltration or hemodiafiltration follows a simple exponential law, and P in 90 min reaches a stationary level that remains constant until the end of the treatment. The theoretical compartmental model cannot be estimated by a dialytic treatment, but a simpler diffusive model may be considered. Once the stationary level is reached, the net flux of P from the inaccessible compartments to the accessible compartment may be estimated via the parameters obtained in the exponential model. Hemodiafiltration seems more efficient than hemofiltration in determining P clearance. Thus an efficiency index that accounts for the period in which P is eliminated from the accessible compartment has been formulated.
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http://dx.doi.org/10.1111/j.1525-1594.1993.tb00380.x | DOI Listing |
BMC Nephrol
January 2025
Medical career, Faculty of Health Sciences, Universidad Técnica de Ambato, Ambato, Ecuador.
Background: High blood pressure is a prevalent condition in patients with chronic kidney disease on hemodialysis. Adequate control of high blood pressure is essential to reducing deaths in this group. The present study aimed to observe mortality prospectively in a group of patients in hemodialysis and hemodiafiltration programs in whom the use of antihypertensives was optimized with the point-of-care dry weight (POC-DW) technique.
View Article and Find Full Text PDFJ Crit Care
January 2025
AP-HP, Hôpital Louis Mourier, DMU ESPRIT, Service de Médecine Intensive Réanimation, F-92700 Colombes, France; Université Paris Cité, Medical school, F-75018 Paris, France; Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, F-75015 Paris, France. Electronic address:
The optimal modalities of kidney replacement therapy (KRT) in the ICU remain debated. Intermittent haemodialysis (IHD) and continuous veno-venous haemofiltration (CVVH) are the two main methods. Intermittent haemodialysis requires a water treatment system, which may not be available in all jurisdictions.
View Article and Find Full Text PDFBMC Nephrol
January 2025
Fresenius Medical Care Deutschland GmbH, Bad Homburg, Hessen, Germany.
Background: Results from the CONVINCE clinical trial suggest a 23% mortality risk reduction among patients receiving high-volume (> 23 L) hemodiafiltration. We assessed the real-world effectiveness of blood-based kidney replacement therapy (KRT) with hemodiafiltration vs. hemodialysis in a large, unselected patient population treated prior to and during the COVID-19 pandemic.
View Article and Find Full Text PDFActa Biochim Pol
December 2024
Department of Nephrology, Transplantology and Internal Diseases, Medical University of Gdansk, Gdańsk, Poland.
Various high-efficiency hemodialysis techniques exist, including different online high- volume hemodiafiltration (HDF) modes and expanded hemodialysis (HDx) utilizing dialyzers with medium cut-off (MCO) membranes. This study aimed to evaluate the efficacy of uremic toxin removal among four modalities: (I) HDx, (II) pre-dilution HDF (PRE-HDF), (III) mixed-dilution HDF (MIX-HDF), and (IV) post-dilution HDF (POST-HDF), each applied for 1 week in a randomized order. This research was a single-center, prospective, open-label, exploratory crossover study.
View Article and Find Full Text PDFPLoS One
December 2024
Amicus Therapeutics, Inc., Princeton, New Jersey, United States of America.
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