In this chapter, anticoagulation treatments for adsorption techniques in continuous renal replacement therapy (CKRT) will be reviewed. Anticoagulation used with adsorption techniques is quite different than anticoagulation in classical CKRT with nonadsorptive therapies. Regional citrate anticoagulation (RCA) and unfractionated heparin (UFH) are the most common anticoagulation modalities for both nonselective adsorptive membranes - such as surface-treated acrylonitrile 69 membranes (AN69ST) and polymethylmethacrylate membranes - and selective adsorptive membranes such as AN69-oXiris. For these techniques, the efficacy of RCA seems to be superior to UFH. Regardless of the lack of large comparative studies in comparison to ones conducted for adsorptive filter techniques in CKRT, RCA and UFH will also be discussed for nonselective adsorptive sorbents like CytoSorb and Jafron HA. For selective adsorptive sorbents, such as polymyxin-B hemoperfusion, UFH and RCA seems to be the appropriate techniques; however, randomized controlled trials confirming this are yet to be conducted. Lastly, anticoagulation prophylaxis for more specific techniques like coupled plasma filtration adsorption and double plasma molecular adsorption system will be discussed.
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