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BACKGROUND: Anticoagulation of the blood circuit with heparin is essential for hemodialysis, but exposes patients to several risks (bleeding, thrombocytopenia, etc.). The use of citric acid-based dialysate (CitA-D) allows the reduction of heparin in conventional hemodialysis. We evaluated the feasibility of using CitA-D in postdilution online hemodiafiltration (OL-HDF) and of removing heparin. METHODS: We prospectively compared chlorhydric acid-based dialysate with CitA-D in 10 patients treated by OL-HDF. First, we reduced heparin by half the dose and then we totally removed anticoagulation. RESULTS: For all 120 sessions using heparin-free CitA-D, only one clotting episode related to an arteriovenous fistula stenosis was observed. No adverse clinical effect was observed. (Kt/V)sp, predialytic serum bicarbonate, calcium, phosphate, parathroid hormone, and β2-microglobulin remained the same in all cases. CONCLUSION: Our data suggest that the use of CitA-D in OL-HDF is safe and allows heparin removal in most patients.
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Aniort et al. (2012) studied this question.
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