Effects of Different Blood Purification Methods on Serum Cytokine Levels and Prognosis in Patients With Acute Severe Organophosphorus Pesticide Poisoning

The aim of the present study was to investigate the impact of three different blood purification methods, hemoperfusion (HP), continuous blood purification (CBP), and on‐line high‐volume hemodiafiltration (OL‐HDF), on the survival rate of patients with acute severe organophosphorus pesticide poisoning (ASOPP), as well as on major pro‐inflammatory (interleukin [IL]‐1, IL‐6, tumor necrosis factor‐α [TNF‐α]) and anti‐inflammatory (IL‐10) cytokines in the serum. Eighty‐one ASOPP patients were randomly divided into three groups: HP (N = 23), HP + CBP (N = 26), HP + OL‐HD (N = 32). Serum IL‐1, IL‐6, TNF‐α, and IL‐10 levels were assessed by ELISA before treatment and at 24 and 48 h post‐treatment and survival rates were determined. Patient survival rate was significantly higher in OL‐HDF and CBP treated patients compared with HP group (P < 0.05). A significantly greater clearance effect in serum IL‐1, IL‐6, and TNF‐α levels at 24 and 48 h post‐treatment was observed in CBP and OL‐HDF groups compared with the HP group (P < 0.05). The levels of serum anti‐inflammatory cytokine IL‐10 increased significantly in CBP and OL‐HDF groups compared with the HP group (P < 0.05 at 48 h post‐treatment). In addition, OL‐HDF treatment achieved similar changes in serum TNF‐α, IL‐1, IL‐6 and IL‐10 levels as CBP (P > 0.05). Compared with the HP method, CBP or OL‐HDF combined with HP can rapidly clear inflammatory cytokines, reduce systemic inflammatory response syndrome, and improve the survival of ASOPP patients. Compared with CBP, OL‐HDF is an economical and effective method to treat ASOPP with less technical difficulty and more suitability for rural areas and primary hospitals.

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