Comparison between citrate and acetate dialysate in chronic online hemodiafiltration: A short-term prospective study in pediatric settings.
2020
BACKGROUND: The use of citrate in chronic hemodialysis to acidify dialysis solutions, in replacement of acetate, began in the 2000's. The purpose of the following study is to determine whether this change represents a better alternative regarding short-term tolerance, efficiency and biocompatibility of chronic renal replacement therapy (RRT) in pediatric patients. METHODS: A monocentric prospective observational study was conducted in the pediatric dialysis department of Nancy (France) between December 1st, 2014 and January 25, 2015 on a cohort of pediatric patients under predilution on-line hemodiafiltration (olHDF). Sessions were analysed during two study periods of 14 days: a first period during which dialysis solutions were acidified using acetate and a second during which solutes were acidified using citrate. These periods were separated by a washout period of 28 days on citrate solution. Each patient served as his own control. RESULTS: Dialysis clinical tolerance seems better under citrate regimen, with no statistical significance. No benefit was brought out regarding the prevention of coagulation accidents in the extracorporeal circuit under citrate regimen. The efficiency of olHDF sessions was similar between periods, both in terms of uremic toxins clearance and medium-molecular-weight molecules (MMWM) removal. The evolution of several biological parameters seemed favourable over the citrate period: increase in pre-dialysis serum bicarbonate, stability of plasma hemoglobin and decrease in erythropoietin resistance index (ERI). However, differences in the variation of these parameters between the two periods were not significant. No severe and/or symptomatic hypocalcemia occurred. CONCLUSION: The use of citrate instead of acetate in dialysis and substitution solutions appears in the short term as a safe alternative for chronic online hemodiafiltration in children.
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