Removal of inflammatory cytokines by hemoperfusion for protecting the kidney from acute injury in patients with sepsis

Objective To study the protective effect of removing inflammatory cytokines by hemoperfusion (HP)on acute kidney injury (AKI) in patients with sepsis. Method A total of 40 patients with sepsis and AKI were randomly divided into two croups: HP treatment group (n = 22) and control group (n = 18). Hemoperfusion carried out in patients of Hp group with HA330 filter once a day for 3 days and the procedure of each hemoperfusion was completed in 2 hours. The patients of control group were treated with routine treatment. Further, the hemodynamics, plasma IL-6, IL-10, C-reactive protein (CRP), serum creatinine (Scr), blood BUN and urine NAG, γ-GTP,α1-MG of patients in both groups were detected before treatment and 3 d,7 d and 14 days after treatment. Results Compared to control group, the levels of plasma interleukins-6, IL-10 and C-reactive protein were significantly lower (P ＜ 0.05), along with increase in urine output, lower levels of blood BUN and Scr, reduction in urine NAG,γ-GT and α1-MG (P ＜ 0.05). In addition, the patients at Ⅰ or Ⅱ stage of AKI treated with hemoperfusion had significantly lower level of Scr in 14 days and lower mortality in intensive care unit in comparison with control group (P ＜ 0.05). Conclusions Hemoperfusion employed in the earlier stage of AKI with the HA type filter may have protective effect on acute kidney injury by the removal of inflammatory cytokines in the setting of sepsis. Key words: Blood purification;  Hemoperfusion;  Sepsis;  Acute kidney injury;  Cytokine;  Hemodynamics;  Renal function;  Survival rate