Heparin-Free Chronic HemoDialysis Assessment

Intermittent hemodialysis is a complex technique which requires careful monitoring of anticoagulation levels to prevent clotting and reduce the risk of bleeding complications. Dialysis patients often exhibit hypercoagulable tendencies due to uremic state, turbulent blood flows in dialysis procedures, and thrombogenic exposure to artificial surfaces of dialysis tubing. Patients with ESRD may experience both dialyzer clotting and excessive bleeding, so individualized heparin dosing and periodic adjustments are necessary to ensure adequate anticoagulation during hemodialysis. The ideal anticoagulant should prevent thrombosis while minimizing the risk of intra- and interdialytic bleeding. The use of heparin carries risks such as worsening of osteoporosis and dyslipidemia, allergic reactions like pruritus, and the potential for life-threatening heparin-induced thrombocytopenia (HIT) for which avoidance of heparin is necessary during dialysis.Heparin, in both its unfractionated heparin (UFH) and low molecular weight heparin (LMWH) forms, is the most commonly used anticoagulant, though evidence comparing their efficacy and risk of bleeding remains inconclusive. End-stage renal disease (ESRD) patients, who are already at higher risk of serious bleeding, may benefit from regional anticoagulation (RA) techniques, as they typically receive around 600,000 IU of heparin per year. The investigators performed routinely a simplified regional anticoagulation procedure (RAP) using a constant c…

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Thomas Robert  ·  04 91 38 41 17  ·  thomas.robert@ap-hm.fr

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