Abstract: Objective  To explore the efficacy of oXiris hemofilter in the treatment of severe burn patients complicated with sepsis and acute kidney injury.  Method  The clinical data of 5 patients with severe burn complicated with sepsis and acute kidney injury treated with continuous venovenous hemofiltration (CVVHDF) with oXiris hemofiltration in the hemodialysis center of General Hospital of Ningxia Medical University from May 2018 to February 2021 were retrospectively analyzed. The changes in general vital signs (body temperature, MAP, heart rate, respiration, urine volume, etc.), blood routine, blood gas analysis, and biochemical indexes were observed in 5 patients before and 24 hours after CVVHDF treatment with oXiris hemofiltration, and the Sequential Organ Failure Assessment (SOFA) score was calculated respectively.  Results  ①In the following 24 hours after CVVHDF with oXiris hemofiltration, compared with before treatment, the urine volume of 24 hours (Z=-2.069, P=0.039), the platelets count (t=-3.977, P =0.001) were increased, and the serum sodium level (t=2.652, P =0.016) and the SOFA score (t=4.265, P＜0.001) was decreased. The indexes of body temperature(t=-0.258, P=0.799), MAP (t=0.168, P=0.868), heart rate(t=1.057, P=0.304), respiration     (t=0.481, P=0.636), PH(t=1.304, P=0.208), WBC (t=-1.616, P=0.123), serum bilirubin(t=0.560, P=0.582), serum creatinine (t=0.755, P=0.459) were improved, but there was no significant difference before and after treatment. ②The 28-day survival rate of these patients was 60%.  Conclusions  CVVHDF therapy with oXiris hemofiltration can improve coagulation function, promote the recovery of kidney function, reduce SOFA score in severe burn patients complicated by sepsis and acute kidney injury.

Key words: OXiris hemofiltration, Severe burn, Sepsis, Acute kidney injury