Safety and Efficacy of Intermittent Renal Replacement Therapy Using CITRASATE in Critically-ill Patients

Plain-language summary

Renal Replacement Therapy (RRT) needs an extracorporeal circulation to conduct blood to the dialysis membrane and driving back to the patient. This extracorporeal circulation induces inevitably a risk of coagulation activation and premature clotting of the circuit. Heparin is thereby commonly used to prevent such thrombosis but exposed patient to risk of hemorrhage. This risk of hemorrhage may be important in ICU population, particularly in severe trauma patients. The calcium is an important determinant of coagulation cascade. The use of specific citrate enriched dialysate without calcium (CITRASATE®) allows to suddenly lower the calcium concentration in extracorporeal plasma, leading to a regional ineffectiveness of clotting and limited heparin needs. This low calcium plasmatic concentration into the extracorporeal circulation has however to be normalized to not generate a systemic hypocalcemia. In our ICU, a local calcium substitution protocol based on dialysate flow is used in clinical practice. Commonly used in our unit, there is a lack data to evaluate the CITRASATE dialysate in a critical population. The aim goal of our study will be to assess safety and efficacy of intermittent renal replacement therapy using CITRASATE® in critically-ill patients.

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